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9 <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
10 <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
11 <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
12 <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
13 <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
14 <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
15 <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
16 <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
17 <span class="sourceLineNo">009</span> *<a name="line.9"></a>
18 <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
19 <span class="sourceLineNo">011</span> *<a name="line.11"></a>
20 <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
21 <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
22 <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
23 <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
24 <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
25 <span class="sourceLineNo">017</span> */<a name="line.17"></a>
26 <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase;<a name="line.18"></a>
27 <span class="sourceLineNo">019</span><a name="line.19"></a>
28 <span class="sourceLineNo">020</span>import java.io.Closeable;<a name="line.20"></a>
29 <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
30 <span class="sourceLineNo">022</span>import java.io.InterruptedIOException;<a name="line.22"></a>
31 <span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a>
32 <span class="sourceLineNo">024</span>import java.util.Arrays;<a name="line.24"></a>
33 <span class="sourceLineNo">025</span>import java.util.Collections;<a name="line.25"></a>
34 <span class="sourceLineNo">026</span>import java.util.HashMap;<a name="line.26"></a>
35 <span class="sourceLineNo">027</span>import java.util.LinkedHashMap;<a name="line.27"></a>
36 <span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a>
37 <span class="sourceLineNo">029</span>import java.util.Map;<a name="line.29"></a>
38 <span class="sourceLineNo">030</span>import java.util.NavigableMap;<a name="line.30"></a>
39 <span class="sourceLineNo">031</span>import java.util.Set;<a name="line.31"></a>
40 <span class="sourceLineNo">032</span>import java.util.SortedMap;<a name="line.32"></a>
41 <span class="sourceLineNo">033</span>import java.util.TreeMap;<a name="line.33"></a>
42 <span class="sourceLineNo">034</span>import java.util.regex.Matcher;<a name="line.34"></a>
43 <span class="sourceLineNo">035</span>import java.util.regex.Pattern;<a name="line.35"></a>
44 <span class="sourceLineNo">036</span><a name="line.36"></a>
45 <span class="sourceLineNo">037</span>import org.apache.hadoop.conf.Configuration;<a name="line.37"></a>
46 <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.Cell.Type;<a name="line.38"></a>
47 <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.39"></a>
48 <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.40"></a>
49 <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.Consistency;<a name="line.41"></a>
50 <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.42"></a>
51 <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.Get;<a name="line.43"></a>
52 <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.44"></a>
53 <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.Put;<a name="line.45"></a>
54 <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.46"></a>
55 <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.47"></a>
56 <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.RegionLocator;<a name="line.48"></a>
57 <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.49"></a>
58 <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.RegionServerCallable;<a name="line.50"></a>
59 <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.client.Result;<a name="line.51"></a>
60 <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.client.ResultScanner;<a name="line.52"></a>
61 <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.53"></a>
62 <span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.Table;<a name="line.54"></a>
63 <span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.55"></a>
64 <span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.56"></a>
65 <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.ipc.CoprocessorRpcChannel;<a name="line.57"></a>
66 <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.58"></a>
67 <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.59"></a>
68 <span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.protobuf.generated.ClientProtos;<a name="line.60"></a>
69 <span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier;<a name="line.61"></a>
70 <span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier.RegionSpecifierType;<a name="line.62"></a>
71 <span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos;<a name="line.63"></a>
72 <span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos.MutateRowsRequest;<a name="line.64"></a>
73 <span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProtos.MutateRowsResponse;<a name="line.65"></a>
74 <span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.66"></a>
75 <span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.67"></a>
76 <span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.util.ExceptionUtil;<a name="line.68"></a>
77 <span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.69"></a>
78 <span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.util.PairOfSameType;<a name="line.70"></a>
79 <span class="sourceLineNo">071</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.71"></a>
80 <span class="sourceLineNo">072</span>import org.slf4j.Logger;<a name="line.72"></a>
81 <span class="sourceLineNo">073</span>import org.slf4j.LoggerFactory;<a name="line.73"></a>
82 <span class="sourceLineNo">074</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.74"></a>
83 <span class="sourceLineNo">075</span>import edu.umd.cs.findbugs.annotations.NonNull;<a name="line.75"></a>
84 <span class="sourceLineNo">076</span>import edu.umd.cs.findbugs.annotations.Nullable;<a name="line.76"></a>
85 <span class="sourceLineNo">077</span><a name="line.77"></a>
86 <span class="sourceLineNo">078</span>/**<a name="line.78"></a>
87 <span class="sourceLineNo">079</span> * Read/write operations on region and assignment information store in<a name="line.79"></a>
88 <span class="sourceLineNo">080</span> * &lt;code&gt;hbase:meta&lt;/code&gt;.<a name="line.80"></a>
89 <span class="sourceLineNo">081</span> *<a name="line.81"></a>
90 <span class="sourceLineNo">082</span> * Some of the methods of this class take ZooKeeperWatcher as a param. The only reason<a name="line.82"></a>
91 <span class="sourceLineNo">083</span> * for this is because when used on client-side (like from HBaseAdmin), we want to use<a name="line.83"></a>
92 <span class="sourceLineNo">084</span> * short-living connection (opened before each operation, closed right after), while<a name="line.84"></a>
93 <span class="sourceLineNo">085</span> * when used on HM or HRS (like in AssignmentManager) we want permanent connection.<a name="line.85"></a>
94 <span class="sourceLineNo">086</span> */<a name="line.86"></a>
95 <span class="sourceLineNo">087</span>@InterfaceAudience.Private<a name="line.87"></a>
96 <span class="sourceLineNo">088</span>public class MetaTableAccessor {<a name="line.88"></a>
97 <span class="sourceLineNo">089</span><a name="line.89"></a>
98 <span class="sourceLineNo">090</span> /*<a name="line.90"></a>
99 <span class="sourceLineNo">091</span> * HBASE-10070 adds a replicaId to HRI, meaning more than one HRI can be defined for the<a name="line.91"></a>
100 <span class="sourceLineNo">092</span> * same table range (table, startKey, endKey). For every range, there will be at least one<a name="line.92"></a>
101 <span class="sourceLineNo">093</span> * HRI defined which is called default replica.<a name="line.93"></a>
102 <span class="sourceLineNo">094</span> *<a name="line.94"></a>
103 <span class="sourceLineNo">095</span> * Meta layout (as of 0.98 + HBASE-10070) is like:<a name="line.95"></a>
104 <span class="sourceLineNo">096</span> *<a name="line.96"></a>
105 <span class="sourceLineNo">097</span> * For each table there is single row in column family 'table' formatted:<a name="line.97"></a>
106 <span class="sourceLineNo">098</span> * &lt;tableName&gt; including namespace and columns are:<a name="line.98"></a>
107 <span class="sourceLineNo">099</span> * table: state =&gt; contains table state<a name="line.99"></a>
108 <span class="sourceLineNo">100</span> *<a name="line.100"></a>
109 <span class="sourceLineNo">101</span> * For each table range, there is a single row, formatted like:<a name="line.101"></a>
110 <span class="sourceLineNo">102</span> * &lt;tableName&gt;,&lt;startKey&gt;,&lt;regionId&gt;,&lt;encodedRegionName&gt;. This row corresponds to the regionName<a name="line.102"></a>
111 <span class="sourceLineNo">103</span> * of the default region replica.<a name="line.103"></a>
112 <span class="sourceLineNo">104</span> * Columns are:<a name="line.104"></a>
113 <span class="sourceLineNo">105</span> * info:regioninfo =&gt; contains serialized HRI for the default region replica<a name="line.105"></a>
114 <span class="sourceLineNo">106</span> * info:server =&gt; contains hostname:port (in string form) for the server hosting<a name="line.106"></a>
115 <span class="sourceLineNo">107</span> * the default regionInfo replica<a name="line.107"></a>
116 <span class="sourceLineNo">108</span> * info:server_&lt;replicaId&gt; =&gt; contains hostname:port (in string form) for the server hosting the<a name="line.108"></a>
117 <span class="sourceLineNo">109</span> * regionInfo replica with replicaId<a name="line.109"></a>
118 <span class="sourceLineNo">110</span> * info:serverstartcode =&gt; contains server start code (in binary long form) for the server<a name="line.110"></a>
119 <span class="sourceLineNo">111</span> * hosting the default regionInfo replica<a name="line.111"></a>
120 <span class="sourceLineNo">112</span> * info:serverstartcode_&lt;replicaId&gt; =&gt; contains server start code (in binary long form) for the<a name="line.112"></a>
121 <span class="sourceLineNo">113</span> * server hosting the regionInfo replica with replicaId<a name="line.113"></a>
122 <span class="sourceLineNo">114</span> * info:seqnumDuringOpen =&gt; contains seqNum (in binary long form) for the region at the time<a name="line.114"></a>
123 <span class="sourceLineNo">115</span> * the server opened the region with default replicaId<a name="line.115"></a>
124 <span class="sourceLineNo">116</span> * info:seqnumDuringOpen_&lt;replicaId&gt; =&gt; contains seqNum (in binary long form) for the region at<a name="line.116"></a>
125 <span class="sourceLineNo">117</span> * the time the server opened the region with replicaId<a name="line.117"></a>
126 <span class="sourceLineNo">118</span> * info:splitA =&gt; contains a serialized HRI for the first daughter region if the<a name="line.118"></a>
127 <span class="sourceLineNo">119</span> * region is split<a name="line.119"></a>
128 <span class="sourceLineNo">120</span> * info:splitB =&gt; contains a serialized HRI for the second daughter region if the<a name="line.120"></a>
129 <span class="sourceLineNo">121</span> * region is split<a name="line.121"></a>
130 <span class="sourceLineNo">122</span> * info:mergeA =&gt; contains a serialized HRI for the first parent region if the<a name="line.122"></a>
131 <span class="sourceLineNo">123</span> * region is the result of a merge<a name="line.123"></a>
132 <span class="sourceLineNo">124</span> * info:mergeB =&gt; contains a serialized HRI for the second parent region if the<a name="line.124"></a>
133 <span class="sourceLineNo">125</span> * region is the result of a merge<a name="line.125"></a>
134 <span class="sourceLineNo">126</span> * The actual layout of meta should be encapsulated inside MetaTableAccessor methods,<a name="line.126"></a>
135 <span class="sourceLineNo">127</span> * and should not leak out of it (through Result objects, etc)<a name="line.127"></a>
136 <span class="sourceLineNo">128</span> *<a name="line.128"></a>
137 <span class="sourceLineNo">129</span> * For replication serially, there are three column families "rep_barrier", "rep_position" and<a name="line.129"></a>
138 <span class="sourceLineNo">130</span> * "rep_meta" whose row key is encodedRegionName.<a name="line.130"></a>
139 <span class="sourceLineNo">131</span> * rep_barrier:{seqid} =&gt; in each time a RS opens a region, it saves the open sequence<a name="line.131"></a>
140 <span class="sourceLineNo">132</span> * id in this region<a name="line.132"></a>
141 <span class="sourceLineNo">133</span> * rep_position:{peerid} =&gt; to save the max sequence id we have pushed for each peer<a name="line.133"></a>
142 <span class="sourceLineNo">134</span> * rep_meta:_TABLENAME_ =&gt; a special cell to save this region's table name, will used when<a name="line.134"></a>
143 <span class="sourceLineNo">135</span> * we clean old data<a name="line.135"></a>
144 <span class="sourceLineNo">136</span> * rep_meta:_DAUGHTER_ =&gt; a special cell to present this region is split or merged, in this<a name="line.136"></a>
145 <span class="sourceLineNo">137</span> * cell the value is merged encoded name or two split encoded names<a name="line.137"></a>
146 <span class="sourceLineNo">138</span> * separated by ","<a name="line.138"></a>
147 <span class="sourceLineNo">139</span> * rep_meta:_PARENT_ =&gt; a special cell to present this region's parent region(s), in this<a name="line.139"></a>
148 <span class="sourceLineNo">140</span> * cell the value is encoded name of one or two parent regions<a name="line.140"></a>
149 <span class="sourceLineNo">141</span> * separated by ","<a name="line.141"></a>
150 <span class="sourceLineNo">142</span> */<a name="line.142"></a>
151 <span class="sourceLineNo">143</span><a name="line.143"></a>
152 <span class="sourceLineNo">144</span> private static final Logger LOG = LoggerFactory.getLogger(MetaTableAccessor.class);<a name="line.144"></a>
153 <span class="sourceLineNo">145</span> private static final Logger METALOG = LoggerFactory.getLogger("org.apache.hadoop.hbase.META");<a name="line.145"></a>
154 <span class="sourceLineNo">146</span><a name="line.146"></a>
155 <span class="sourceLineNo">147</span> // Save its daughter/parent region(s) when split/merge<a name="line.147"></a>
156 <span class="sourceLineNo">148</span> private static final byte[] daughterNameCq = Bytes.toBytes("_DAUGHTER_");<a name="line.148"></a>
157 <span class="sourceLineNo">149</span> private static final byte[] parentNameCq = Bytes.toBytes("_PARENT_");<a name="line.149"></a>
158 <span class="sourceLineNo">150</span><a name="line.150"></a>
159 <span class="sourceLineNo">151</span> // Save its table name because we only know region's encoded name<a name="line.151"></a>
160 <span class="sourceLineNo">152</span> private static final byte[] tableNameCq = Bytes.toBytes("_TABLENAME_");<a name="line.152"></a>
161 <span class="sourceLineNo">153</span><a name="line.153"></a>
162 <span class="sourceLineNo">154</span> static final byte [] META_REGION_PREFIX;<a name="line.154"></a>
163 <span class="sourceLineNo">155</span> static {<a name="line.155"></a>
164 <span class="sourceLineNo">156</span> // Copy the prefix from FIRST_META_REGIONINFO into META_REGION_PREFIX.<a name="line.156"></a>
165 <span class="sourceLineNo">157</span> // FIRST_META_REGIONINFO == 'hbase:meta,,1'. META_REGION_PREFIX == 'hbase:meta,'<a name="line.157"></a>
166 <span class="sourceLineNo">158</span> int len = RegionInfoBuilder.FIRST_META_REGIONINFO.getRegionName().length - 2;<a name="line.158"></a>
167 <span class="sourceLineNo">159</span> META_REGION_PREFIX = new byte [len];<a name="line.159"></a>
168 <span class="sourceLineNo">160</span> System.arraycopy(RegionInfoBuilder.FIRST_META_REGIONINFO.getRegionName(), 0,<a name="line.160"></a>
169 <span class="sourceLineNo">161</span> META_REGION_PREFIX, 0, len);<a name="line.161"></a>
170 <span class="sourceLineNo">162</span> }<a name="line.162"></a>
171 <span class="sourceLineNo">163</span><a name="line.163"></a>
172 <span class="sourceLineNo">164</span> /**<a name="line.164"></a>
173 <span class="sourceLineNo">165</span> * Lists all of the table regions currently in META.<a name="line.165"></a>
174 <span class="sourceLineNo">166</span> * Deprecated, keep there until some test use this.<a name="line.166"></a>
175 <span class="sourceLineNo">167</span> * @param connection what we will use<a name="line.167"></a>
176 <span class="sourceLineNo">168</span> * @param tableName table to list<a name="line.168"></a>
177 <span class="sourceLineNo">169</span> * @return Map of all user-space regions to servers<a name="line.169"></a>
178 <span class="sourceLineNo">170</span> * @throws java.io.IOException<a name="line.170"></a>
179 <span class="sourceLineNo">171</span> * @deprecated use {@link #getTableRegionsAndLocations}, region can have multiple locations<a name="line.171"></a>
180 <span class="sourceLineNo">172</span> */<a name="line.172"></a>
181 <span class="sourceLineNo">173</span> @Deprecated<a name="line.173"></a>
182 <span class="sourceLineNo">174</span> public static NavigableMap&lt;RegionInfo, ServerName&gt; allTableRegions(<a name="line.174"></a>
183 <span class="sourceLineNo">175</span> Connection connection, final TableName tableName) throws IOException {<a name="line.175"></a>
184 <span class="sourceLineNo">176</span> final NavigableMap&lt;RegionInfo, ServerName&gt; regions = new TreeMap&lt;&gt;();<a name="line.176"></a>
185 <span class="sourceLineNo">177</span> Visitor visitor = new TableVisitorBase(tableName) {<a name="line.177"></a>
186 <span class="sourceLineNo">178</span> @Override<a name="line.178"></a>
187 <span class="sourceLineNo">179</span> public boolean visitInternal(Result result) throws IOException {<a name="line.179"></a>
188 <span class="sourceLineNo">180</span> RegionLocations locations = getRegionLocations(result);<a name="line.180"></a>
189 <span class="sourceLineNo">181</span> if (locations == null) return true;<a name="line.181"></a>
190 <span class="sourceLineNo">182</span> for (HRegionLocation loc : locations.getRegionLocations()) {<a name="line.182"></a>
191 <span class="sourceLineNo">183</span> if (loc != null) {<a name="line.183"></a>
192 <span class="sourceLineNo">184</span> RegionInfo regionInfo = loc.getRegionInfo();<a name="line.184"></a>
193 <span class="sourceLineNo">185</span> regions.put(regionInfo, loc.getServerName());<a name="line.185"></a>
194 <span class="sourceLineNo">186</span> }<a name="line.186"></a>
195 <span class="sourceLineNo">187</span> }<a name="line.187"></a>
196 <span class="sourceLineNo">188</span> return true;<a name="line.188"></a>
197 <span class="sourceLineNo">189</span> }<a name="line.189"></a>
198 <span class="sourceLineNo">190</span> };<a name="line.190"></a>
199 <span class="sourceLineNo">191</span> scanMetaForTableRegions(connection, visitor, tableName);<a name="line.191"></a>
200 <span class="sourceLineNo">192</span> return regions;<a name="line.192"></a>
201 <span class="sourceLineNo">193</span> }<a name="line.193"></a>
202 <span class="sourceLineNo">194</span><a name="line.194"></a>
203 <span class="sourceLineNo">195</span> @InterfaceAudience.Private<a name="line.195"></a>
204 <span class="sourceLineNo">196</span> public enum QueryType {<a name="line.196"></a>
205 <span class="sourceLineNo">197</span> ALL(HConstants.TABLE_FAMILY, HConstants.CATALOG_FAMILY),<a name="line.197"></a>
206 <span class="sourceLineNo">198</span> REGION(HConstants.CATALOG_FAMILY),<a name="line.198"></a>
207 <span class="sourceLineNo">199</span> TABLE(HConstants.TABLE_FAMILY);<a name="line.199"></a>
208 <span class="sourceLineNo">200</span><a name="line.200"></a>
209 <span class="sourceLineNo">201</span> private final byte[][] families;<a name="line.201"></a>
210 <span class="sourceLineNo">202</span><a name="line.202"></a>
211 <span class="sourceLineNo">203</span> QueryType(byte[]... families) {<a name="line.203"></a>
212 <span class="sourceLineNo">204</span> this.families = families;<a name="line.204"></a>
213 <span class="sourceLineNo">205</span> }<a name="line.205"></a>
214 <span class="sourceLineNo">206</span><a name="line.206"></a>
215 <span class="sourceLineNo">207</span> byte[][] getFamilies() {<a name="line.207"></a>
216 <span class="sourceLineNo">208</span> return this.families;<a name="line.208"></a>
217 <span class="sourceLineNo">209</span> }<a name="line.209"></a>
218 <span class="sourceLineNo">210</span> }<a name="line.210"></a>
219 <span class="sourceLineNo">211</span><a name="line.211"></a>
220 <span class="sourceLineNo">212</span> /** The delimiter for meta columns for replicaIds &amp;gt; 0 */<a name="line.212"></a>
221 <span class="sourceLineNo">213</span> protected static final char META_REPLICA_ID_DELIMITER = '_';<a name="line.213"></a>
222 <span class="sourceLineNo">214</span><a name="line.214"></a>
223 <span class="sourceLineNo">215</span> /** A regex for parsing server columns from meta. See above javadoc for meta layout */<a name="line.215"></a>
224 <span class="sourceLineNo">216</span> private static final Pattern SERVER_COLUMN_PATTERN<a name="line.216"></a>
225 <span class="sourceLineNo">217</span> = Pattern.compile("^server(_[0-9a-fA-F]{4})?$");<a name="line.217"></a>
226 <span class="sourceLineNo">218</span><a name="line.218"></a>
227 <span class="sourceLineNo">219</span> ////////////////////////<a name="line.219"></a>
228 <span class="sourceLineNo">220</span> // Reading operations //<a name="line.220"></a>
229 <span class="sourceLineNo">221</span> ////////////////////////<a name="line.221"></a>
230 <span class="sourceLineNo">222</span><a name="line.222"></a>
231 <span class="sourceLineNo">223</span> /**<a name="line.223"></a>
232 <span class="sourceLineNo">224</span> * Performs a full scan of &lt;code&gt;hbase:meta&lt;/code&gt; for regions.<a name="line.224"></a>
233 <span class="sourceLineNo">225</span> * @param connection connection we're using<a name="line.225"></a>
234 <span class="sourceLineNo">226</span> * @param visitor Visitor invoked against each row in regions family.<a name="line.226"></a>
235 <span class="sourceLineNo">227</span> * @throws IOException<a name="line.227"></a>
236 <span class="sourceLineNo">228</span> */<a name="line.228"></a>
237 <span class="sourceLineNo">229</span> public static void fullScanRegions(Connection connection,<a name="line.229"></a>
238 <span class="sourceLineNo">230</span> final Visitor visitor)<a name="line.230"></a>
239 <span class="sourceLineNo">231</span> throws IOException {<a name="line.231"></a>
240 <span class="sourceLineNo">232</span> scanMeta(connection, null, null, QueryType.REGION, visitor);<a name="line.232"></a>
241 <span class="sourceLineNo">233</span> }<a name="line.233"></a>
242 <span class="sourceLineNo">234</span><a name="line.234"></a>
243 <span class="sourceLineNo">235</span> /**<a name="line.235"></a>
244 <span class="sourceLineNo">236</span> * Performs a full scan of &lt;code&gt;hbase:meta&lt;/code&gt; for regions.<a name="line.236"></a>
245 <span class="sourceLineNo">237</span> * @param connection connection we're using<a name="line.237"></a>
246 <span class="sourceLineNo">238</span> * @throws IOException<a name="line.238"></a>
247 <span class="sourceLineNo">239</span> */<a name="line.239"></a>
248 <span class="sourceLineNo">240</span> public static List&lt;Result&gt; fullScanRegions(Connection connection)<a name="line.240"></a>
249 <span class="sourceLineNo">241</span> throws IOException {<a name="line.241"></a>
250 <span class="sourceLineNo">242</span> return fullScan(connection, QueryType.REGION);<a name="line.242"></a>
251 <span class="sourceLineNo">243</span> }<a name="line.243"></a>
252 <span class="sourceLineNo">244</span><a name="line.244"></a>
253 <span class="sourceLineNo">245</span> /**<a name="line.245"></a>
254 <span class="sourceLineNo">246</span> * Performs a full scan of &lt;code&gt;hbase:meta&lt;/code&gt; for tables.<a name="line.246"></a>
255 <span class="sourceLineNo">247</span> * @param connection connection we're using<a name="line.247"></a>
256 <span class="sourceLineNo">248</span> * @param visitor Visitor invoked against each row in tables family.<a name="line.248"></a>
257 <span class="sourceLineNo">249</span> * @throws IOException<a name="line.249"></a>
258 <span class="sourceLineNo">250</span> */<a name="line.250"></a>
259 <span class="sourceLineNo">251</span> public static void fullScanTables(Connection connection,<a name="line.251"></a>
260 <span class="sourceLineNo">252</span> final Visitor visitor)<a name="line.252"></a>
261 <span class="sourceLineNo">253</span> throws IOException {<a name="line.253"></a>
262 <span class="sourceLineNo">254</span> scanMeta(connection, null, null, QueryType.TABLE, visitor);<a name="line.254"></a>
263 <span class="sourceLineNo">255</span> }<a name="line.255"></a>
264 <span class="sourceLineNo">256</span><a name="line.256"></a>
265 <span class="sourceLineNo">257</span> /**<a name="line.257"></a>
266 <span class="sourceLineNo">258</span> * Performs a full scan of &lt;code&gt;hbase:meta&lt;/code&gt;.<a name="line.258"></a>
267 <span class="sourceLineNo">259</span> * @param connection connection we're using<a name="line.259"></a>
268 <span class="sourceLineNo">260</span> * @param type scanned part of meta<a name="line.260"></a>
269 <span class="sourceLineNo">261</span> * @return List of {@link Result}<a name="line.261"></a>
270 <span class="sourceLineNo">262</span> * @throws IOException<a name="line.262"></a>
271 <span class="sourceLineNo">263</span> */<a name="line.263"></a>
272 <span class="sourceLineNo">264</span> public static List&lt;Result&gt; fullScan(Connection connection, QueryType type)<a name="line.264"></a>
273 <span class="sourceLineNo">265</span> throws IOException {<a name="line.265"></a>
274 <span class="sourceLineNo">266</span> CollectAllVisitor v = new CollectAllVisitor();<a name="line.266"></a>
275 <span class="sourceLineNo">267</span> scanMeta(connection, null, null, type, v);<a name="line.267"></a>
276 <span class="sourceLineNo">268</span> return v.getResults();<a name="line.268"></a>
277 <span class="sourceLineNo">269</span> }<a name="line.269"></a>
278 <span class="sourceLineNo">270</span><a name="line.270"></a>
279 <span class="sourceLineNo">271</span> /**<a name="line.271"></a>
280 <span class="sourceLineNo">272</span> * Callers should call close on the returned {@link Table} instance.<a name="line.272"></a>
281 <span class="sourceLineNo">273</span> * @param connection connection we're using to access Meta<a name="line.273"></a>
282 <span class="sourceLineNo">274</span> * @return An {@link Table} for &lt;code&gt;hbase:meta&lt;/code&gt;<a name="line.274"></a>
283 <span class="sourceLineNo">275</span> * @throws IOException<a name="line.275"></a>
284 <span class="sourceLineNo">276</span> */<a name="line.276"></a>
285 <span class="sourceLineNo">277</span> public static Table getMetaHTable(final Connection connection)<a name="line.277"></a>
286 <span class="sourceLineNo">278</span> throws IOException {<a name="line.278"></a>
287 <span class="sourceLineNo">279</span> // We used to pass whole CatalogTracker in here, now we just pass in Connection<a name="line.279"></a>
288 <span class="sourceLineNo">280</span> if (connection == null) {<a name="line.280"></a>
289 <span class="sourceLineNo">281</span> throw new NullPointerException("No connection");<a name="line.281"></a>
290 <span class="sourceLineNo">282</span> } else if (connection.isClosed()) {<a name="line.282"></a>
291 <span class="sourceLineNo">283</span> throw new IOException("connection is closed");<a name="line.283"></a>
292 <span class="sourceLineNo">284</span> }<a name="line.284"></a>
293 <span class="sourceLineNo">285</span> return connection.getTable(TableName.META_TABLE_NAME);<a name="line.285"></a>
294 <span class="sourceLineNo">286</span> }<a name="line.286"></a>
295 <span class="sourceLineNo">287</span><a name="line.287"></a>
296 <span class="sourceLineNo">288</span> /**<a name="line.288"></a>
297 <span class="sourceLineNo">289</span> * @param t Table to use (will be closed when done).<a name="line.289"></a>
298 <span class="sourceLineNo">290</span> * @param g Get to run<a name="line.290"></a>
299 <span class="sourceLineNo">291</span> * @throws IOException<a name="line.291"></a>
300 <span class="sourceLineNo">292</span> */<a name="line.292"></a>
301 <span class="sourceLineNo">293</span> private static Result get(final Table t, final Get g) throws IOException {<a name="line.293"></a>
302 <span class="sourceLineNo">294</span> if (t == null) return null;<a name="line.294"></a>
303 <span class="sourceLineNo">295</span> try {<a name="line.295"></a>
304 <span class="sourceLineNo">296</span> return t.get(g);<a name="line.296"></a>
305 <span class="sourceLineNo">297</span> } finally {<a name="line.297"></a>
306 <span class="sourceLineNo">298</span> t.close();<a name="line.298"></a>
307 <span class="sourceLineNo">299</span> }<a name="line.299"></a>
308 <span class="sourceLineNo">300</span> }<a name="line.300"></a>
309 <span class="sourceLineNo">301</span><a name="line.301"></a>
310 <span class="sourceLineNo">302</span> /**<a name="line.302"></a>
311 <span class="sourceLineNo">303</span> * Gets the region info and assignment for the specified region.<a name="line.303"></a>
312 <span class="sourceLineNo">304</span> * @param connection connection we're using<a name="line.304"></a>
313 <span class="sourceLineNo">305</span> * @param regionName Region to lookup.<a name="line.305"></a>
314 <span class="sourceLineNo">306</span> * @return Location and RegionInfo for &lt;code&gt;regionName&lt;/code&gt;<a name="line.306"></a>
315 <span class="sourceLineNo">307</span> * @throws IOException<a name="line.307"></a>
316 <span class="sourceLineNo">308</span> * @deprecated use {@link #getRegionLocation(Connection, byte[])} instead<a name="line.308"></a>
317 <span class="sourceLineNo">309</span> */<a name="line.309"></a>
318 <span class="sourceLineNo">310</span> @Deprecated<a name="line.310"></a>
319 <span class="sourceLineNo">311</span> public static Pair&lt;RegionInfo, ServerName&gt; getRegion(Connection connection, byte [] regionName)<a name="line.311"></a>
320 <span class="sourceLineNo">312</span> throws IOException {<a name="line.312"></a>
321 <span class="sourceLineNo">313</span> HRegionLocation location = getRegionLocation(connection, regionName);<a name="line.313"></a>
322 <span class="sourceLineNo">314</span> return location == null<a name="line.314"></a>
323 <span class="sourceLineNo">315</span> ? null<a name="line.315"></a>
324 <span class="sourceLineNo">316</span> : new Pair&lt;&gt;(location.getRegionInfo(), location.getServerName());<a name="line.316"></a>
325 <span class="sourceLineNo">317</span> }<a name="line.317"></a>
326 <span class="sourceLineNo">318</span><a name="line.318"></a>
327 <span class="sourceLineNo">319</span> /**<a name="line.319"></a>
328 <span class="sourceLineNo">320</span> * Returns the HRegionLocation from meta for the given region<a name="line.320"></a>
329 <span class="sourceLineNo">321</span> * @param connection connection we're using<a name="line.321"></a>
330 <span class="sourceLineNo">322</span> * @param regionName region we're looking for<a name="line.322"></a>
331 <span class="sourceLineNo">323</span> * @return HRegionLocation for the given region<a name="line.323"></a>
332 <span class="sourceLineNo">324</span> * @throws IOException<a name="line.324"></a>
333 <span class="sourceLineNo">325</span> */<a name="line.325"></a>
334 <span class="sourceLineNo">326</span> public static HRegionLocation getRegionLocation(Connection connection,<a name="line.326"></a>
335 <span class="sourceLineNo">327</span> byte[] regionName) throws IOException {<a name="line.327"></a>
336 <span class="sourceLineNo">328</span> byte[] row = regionName;<a name="line.328"></a>
337 <span class="sourceLineNo">329</span> RegionInfo parsedInfo = null;<a name="line.329"></a>
338 <span class="sourceLineNo">330</span> try {<a name="line.330"></a>
339 <span class="sourceLineNo">331</span> parsedInfo = parseRegionInfoFromRegionName(regionName);<a name="line.331"></a>
340 <span class="sourceLineNo">332</span> row = getMetaKeyForRegion(parsedInfo);<a name="line.332"></a>
341 <span class="sourceLineNo">333</span> } catch (Exception parseEx) {<a name="line.333"></a>
342 <span class="sourceLineNo">334</span> // Ignore. This is used with tableName passed as regionName.<a name="line.334"></a>
343 <span class="sourceLineNo">335</span> }<a name="line.335"></a>
344 <span class="sourceLineNo">336</span> Get get = new Get(row);<a name="line.336"></a>
345 <span class="sourceLineNo">337</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.337"></a>
346 <span class="sourceLineNo">338</span> Result r = get(getMetaHTable(connection), get);<a name="line.338"></a>
347 <span class="sourceLineNo">339</span> RegionLocations locations = getRegionLocations(r);<a name="line.339"></a>
348 <span class="sourceLineNo">340</span> return locations == null<a name="line.340"></a>
349 <span class="sourceLineNo">341</span> ? null<a name="line.341"></a>
350 <span class="sourceLineNo">342</span> : locations.getRegionLocation(parsedInfo == null ? 0 : parsedInfo.getReplicaId());<a name="line.342"></a>
351 <span class="sourceLineNo">343</span> }<a name="line.343"></a>
352 <span class="sourceLineNo">344</span><a name="line.344"></a>
353 <span class="sourceLineNo">345</span> /**<a name="line.345"></a>
354 <span class="sourceLineNo">346</span> * Returns the HRegionLocation from meta for the given region<a name="line.346"></a>
355 <span class="sourceLineNo">347</span> * @param connection connection we're using<a name="line.347"></a>
356 <span class="sourceLineNo">348</span> * @param regionInfo region information<a name="line.348"></a>
357 <span class="sourceLineNo">349</span> * @return HRegionLocation for the given region<a name="line.349"></a>
358 <span class="sourceLineNo">350</span> * @throws IOException<a name="line.350"></a>
359 <span class="sourceLineNo">351</span> */<a name="line.351"></a>
360 <span class="sourceLineNo">352</span> public static HRegionLocation getRegionLocation(Connection connection,<a name="line.352"></a>
361 <span class="sourceLineNo">353</span> RegionInfo regionInfo) throws IOException {<a name="line.353"></a>
362 <span class="sourceLineNo">354</span> byte[] row = getMetaKeyForRegion(regionInfo);<a name="line.354"></a>
363 <span class="sourceLineNo">355</span> Get get = new Get(row);<a name="line.355"></a>
364 <span class="sourceLineNo">356</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.356"></a>
365 <span class="sourceLineNo">357</span> Result r = get(getMetaHTable(connection), get);<a name="line.357"></a>
366 <span class="sourceLineNo">358</span> return getRegionLocation(r, regionInfo, regionInfo.getReplicaId());<a name="line.358"></a>
367 <span class="sourceLineNo">359</span> }<a name="line.359"></a>
368 <span class="sourceLineNo">360</span><a name="line.360"></a>
369 <span class="sourceLineNo">361</span> /** Returns the row key to use for this regionInfo */<a name="line.361"></a>
370 <span class="sourceLineNo">362</span> public static byte[] getMetaKeyForRegion(RegionInfo regionInfo) {<a name="line.362"></a>
371 <span class="sourceLineNo">363</span> return RegionReplicaUtil.getRegionInfoForDefaultReplica(regionInfo).getRegionName();<a name="line.363"></a>
372 <span class="sourceLineNo">364</span> }<a name="line.364"></a>
373 <span class="sourceLineNo">365</span><a name="line.365"></a>
374 <span class="sourceLineNo">366</span> /** Returns an HRI parsed from this regionName. Not all the fields of the HRI<a name="line.366"></a>
375 <span class="sourceLineNo">367</span> * is stored in the name, so the returned object should only be used for the fields<a name="line.367"></a>
376 <span class="sourceLineNo">368</span> * in the regionName.<a name="line.368"></a>
377 <span class="sourceLineNo">369</span> */<a name="line.369"></a>
378 <span class="sourceLineNo">370</span> public static RegionInfo parseRegionInfoFromRegionName(byte[] regionName) throws IOException {<a name="line.370"></a>
379 <span class="sourceLineNo">371</span> byte[][] fields = RegionInfo.parseRegionName(regionName);<a name="line.371"></a>
380 <span class="sourceLineNo">372</span> long regionId = Long.parseLong(Bytes.toString(fields[2]));<a name="line.372"></a>
381 <span class="sourceLineNo">373</span> int replicaId = fields.length &gt; 3 ? Integer.parseInt(Bytes.toString(fields[3]), 16) : 0;<a name="line.373"></a>
382 <span class="sourceLineNo">374</span> return RegionInfoBuilder.newBuilder(TableName.valueOf(fields[0]))<a name="line.374"></a>
383 <span class="sourceLineNo">375</span> .setStartKey(fields[1])<a name="line.375"></a>
384 <span class="sourceLineNo">376</span> .setEndKey(fields[2])<a name="line.376"></a>
385 <span class="sourceLineNo">377</span> .setSplit(false)<a name="line.377"></a>
386 <span class="sourceLineNo">378</span> .setRegionId(regionId)<a name="line.378"></a>
387 <span class="sourceLineNo">379</span> .setReplicaId(replicaId)<a name="line.379"></a>
388 <span class="sourceLineNo">380</span> .build();<a name="line.380"></a>
389 <span class="sourceLineNo">381</span> }<a name="line.381"></a>
390 <span class="sourceLineNo">382</span><a name="line.382"></a>
391 <span class="sourceLineNo">383</span> /**<a name="line.383"></a>
392 <span class="sourceLineNo">384</span> * Gets the result in hbase:meta for the specified region.<a name="line.384"></a>
393 <span class="sourceLineNo">385</span> * @param connection connection we're using<a name="line.385"></a>
394 <span class="sourceLineNo">386</span> * @param regionName region we're looking for<a name="line.386"></a>
395 <span class="sourceLineNo">387</span> * @return result of the specified region<a name="line.387"></a>
396 <span class="sourceLineNo">388</span> * @throws IOException<a name="line.388"></a>
397 <span class="sourceLineNo">389</span> */<a name="line.389"></a>
398 <span class="sourceLineNo">390</span> public static Result getRegionResult(Connection connection,<a name="line.390"></a>
399 <span class="sourceLineNo">391</span> byte[] regionName) throws IOException {<a name="line.391"></a>
400 <span class="sourceLineNo">392</span> Get get = new Get(regionName);<a name="line.392"></a>
401 <span class="sourceLineNo">393</span> get.addFamily(HConstants.CATALOG_FAMILY);<a name="line.393"></a>
402 <span class="sourceLineNo">394</span> return get(getMetaHTable(connection), get);<a name="line.394"></a>
403 <span class="sourceLineNo">395</span> }<a name="line.395"></a>
404 <span class="sourceLineNo">396</span><a name="line.396"></a>
405 <span class="sourceLineNo">397</span> /**<a name="line.397"></a>
406 <span class="sourceLineNo">398</span> * Get regions from the merge qualifier of the specified merged region<a name="line.398"></a>
407 <span class="sourceLineNo">399</span> * @return null if it doesn't contain merge qualifier, else two merge regions<a name="line.399"></a>
408 <span class="sourceLineNo">400</span> * @throws IOException<a name="line.400"></a>
409 <span class="sourceLineNo">401</span> */<a name="line.401"></a>
410 <span class="sourceLineNo">402</span> @Nullable<a name="line.402"></a>
411 <span class="sourceLineNo">403</span> public static Pair&lt;RegionInfo, RegionInfo&gt; getRegionsFromMergeQualifier(<a name="line.403"></a>
412 <span class="sourceLineNo">404</span> Connection connection, byte[] regionName) throws IOException {<a name="line.404"></a>
413 <span class="sourceLineNo">405</span> Result result = getRegionResult(connection, regionName);<a name="line.405"></a>
414 <span class="sourceLineNo">406</span> RegionInfo mergeA = getRegionInfo(result, HConstants.MERGEA_QUALIFIER);<a name="line.406"></a>
415 <span class="sourceLineNo">407</span> RegionInfo mergeB = getRegionInfo(result, HConstants.MERGEB_QUALIFIER);<a name="line.407"></a>
416 <span class="sourceLineNo">408</span> if (mergeA == null &amp;&amp; mergeB == null) {<a name="line.408"></a>
417 <span class="sourceLineNo">409</span> return null;<a name="line.409"></a>
418 <span class="sourceLineNo">410</span> }<a name="line.410"></a>
419 <span class="sourceLineNo">411</span> return new Pair&lt;&gt;(mergeA, mergeB);<a name="line.411"></a>
420 <span class="sourceLineNo">412</span> }<a name="line.412"></a>
421 <span class="sourceLineNo">413</span><a name="line.413"></a>
422 <span class="sourceLineNo">414</span> /**<a name="line.414"></a>
423 <span class="sourceLineNo">415</span> * Checks if the specified table exists. Looks at the hbase:meta table hosted on<a name="line.415"></a>
424 <span class="sourceLineNo">416</span> * the specified server.<a name="line.416"></a>
425 <span class="sourceLineNo">417</span> * @param connection connection we're using<a name="line.417"></a>
426 <span class="sourceLineNo">418</span> * @param tableName table to check<a name="line.418"></a>
427 <span class="sourceLineNo">419</span> * @return true if the table exists in meta, false if not<a name="line.419"></a>
428 <span class="sourceLineNo">420</span> * @throws IOException<a name="line.420"></a>
429 <span class="sourceLineNo">421</span> */<a name="line.421"></a>
430 <span class="sourceLineNo">422</span> public static boolean tableExists(Connection connection,<a name="line.422"></a>
431 <span class="sourceLineNo">423</span> final TableName tableName)<a name="line.423"></a>
432 <span class="sourceLineNo">424</span> throws IOException {<a name="line.424"></a>
433 <span class="sourceLineNo">425</span> // Catalog tables always exist.<a name="line.425"></a>
434 <span class="sourceLineNo">426</span> return tableName.equals(TableName.META_TABLE_NAME)<a name="line.426"></a>
435 <span class="sourceLineNo">427</span> || getTableState(connection, tableName) != null;<a name="line.427"></a>
436 <span class="sourceLineNo">428</span> }<a name="line.428"></a>
437 <span class="sourceLineNo">429</span><a name="line.429"></a>
438 <span class="sourceLineNo">430</span> /**<a name="line.430"></a>
439 <span class="sourceLineNo">431</span> * Lists all of the regions currently in META.<a name="line.431"></a>
440 <span class="sourceLineNo">432</span> *<a name="line.432"></a>
441 <span class="sourceLineNo">433</span> * @param connection to connect with<a name="line.433"></a>
442 <span class="sourceLineNo">434</span> * @param excludeOfflinedSplitParents False if we are to include offlined/splitparents regions,<a name="line.434"></a>
443 <span class="sourceLineNo">435</span> * true and we'll leave out offlined regions from returned list<a name="line.435"></a>
444 <span class="sourceLineNo">436</span> * @return List of all user-space regions.<a name="line.436"></a>
445 <span class="sourceLineNo">437</span> * @throws IOException<a name="line.437"></a>
446 <span class="sourceLineNo">438</span> */<a name="line.438"></a>
447 <span class="sourceLineNo">439</span> @VisibleForTesting<a name="line.439"></a>
448 <span class="sourceLineNo">440</span> public static List&lt;RegionInfo&gt; getAllRegions(Connection connection,<a name="line.440"></a>
449 <span class="sourceLineNo">441</span> boolean excludeOfflinedSplitParents)<a name="line.441"></a>
450 <span class="sourceLineNo">442</span> throws IOException {<a name="line.442"></a>
451 <span class="sourceLineNo">443</span> List&lt;Pair&lt;RegionInfo, ServerName&gt;&gt; result;<a name="line.443"></a>
452 <span class="sourceLineNo">444</span><a name="line.444"></a>
453 <span class="sourceLineNo">445</span> result = getTableRegionsAndLocations(connection, null,<a name="line.445"></a>
454 <span class="sourceLineNo">446</span> excludeOfflinedSplitParents);<a name="line.446"></a>
455 <span class="sourceLineNo">447</span><a name="line.447"></a>
456 <span class="sourceLineNo">448</span> return getListOfRegionInfos(result);<a name="line.448"></a>
457 <span class="sourceLineNo">449</span><a name="line.449"></a>
458 <span class="sourceLineNo">450</span> }<a name="line.450"></a>
459 <span class="sourceLineNo">451</span><a name="line.451"></a>
460 <span class="sourceLineNo">452</span> /**<a name="line.452"></a>
461 <span class="sourceLineNo">453</span> * Gets all of the regions of the specified table. Do not use this method<a name="line.453"></a>
462 <span class="sourceLineNo">454</span> * to get meta table regions, use methods in MetaTableLocator instead.<a name="line.454"></a>
463 <span class="sourceLineNo">455</span> * @param connection connection we're using<a name="line.455"></a>
464 <span class="sourceLineNo">456</span> * @param tableName table we're looking for<a name="line.456"></a>
465 <span class="sourceLineNo">457</span> * @return Ordered list of {@link RegionInfo}.<a name="line.457"></a>
466 <span class="sourceLineNo">458</span> * @throws IOException<a name="line.458"></a>
467 <span class="sourceLineNo">459</span> */<a name="line.459"></a>
468 <span class="sourceLineNo">460</span> public static List&lt;RegionInfo&gt; getTableRegions(Connection connection, TableName tableName)<a name="line.460"></a>
469 <span class="sourceLineNo">461</span> throws IOException {<a name="line.461"></a>
470 <span class="sourceLineNo">462</span> return getTableRegions(connection, tableName, false);<a name="line.462"></a>
471 <span class="sourceLineNo">463</span> }<a name="line.463"></a>
472 <span class="sourceLineNo">464</span><a name="line.464"></a>
473 <span class="sourceLineNo">465</span> /**<a name="line.465"></a>
474 <span class="sourceLineNo">466</span> * Gets all of the regions of the specified table. Do not use this method<a name="line.466"></a>
475 <span class="sourceLineNo">467</span> * to get meta table regions, use methods in MetaTableLocator instead.<a name="line.467"></a>
476 <span class="sourceLineNo">468</span> * @param connection connection we're using<a name="line.468"></a>
477 <span class="sourceLineNo">469</span> * @param tableName table we're looking for<a name="line.469"></a>
478 <span class="sourceLineNo">470</span> * @param excludeOfflinedSplitParents If true, do not include offlined split<a name="line.470"></a>
479 <span class="sourceLineNo">471</span> * parents in the return.<a name="line.471"></a>
480 <span class="sourceLineNo">472</span> * @return Ordered list of {@link RegionInfo}.<a name="line.472"></a>
481 <span class="sourceLineNo">473</span> * @throws IOException<a name="line.473"></a>
482 <span class="sourceLineNo">474</span> */<a name="line.474"></a>
483 <span class="sourceLineNo">475</span> public static List&lt;RegionInfo&gt; getTableRegions(Connection connection,<a name="line.475"></a>
484 <span class="sourceLineNo">476</span> TableName tableName, final boolean excludeOfflinedSplitParents)<a name="line.476"></a>
485 <span class="sourceLineNo">477</span> throws IOException {<a name="line.477"></a>
486 <span class="sourceLineNo">478</span> List&lt;Pair&lt;RegionInfo, ServerName&gt;&gt; result =<a name="line.478"></a>
487 <span class="sourceLineNo">479</span> getTableRegionsAndLocations(connection, tableName, excludeOfflinedSplitParents);<a name="line.479"></a>
488 <span class="sourceLineNo">480</span> return getListOfRegionInfos(result);<a name="line.480"></a>
489 <span class="sourceLineNo">481</span> }<a name="line.481"></a>
490 <span class="sourceLineNo">482</span><a name="line.482"></a>
491 <span class="sourceLineNo">483</span> static List&lt;RegionInfo&gt; getListOfRegionInfos(final List&lt;Pair&lt;RegionInfo, ServerName&gt;&gt; pairs) {<a name="line.483"></a>
492 <span class="sourceLineNo">484</span> if (pairs == null || pairs.isEmpty()) return Collections.EMPTY_LIST;<a name="line.484"></a>
493 <span class="sourceLineNo">485</span> List&lt;RegionInfo&gt; result = new ArrayList&lt;&gt;(pairs.size());<a name="line.485"></a>
494 <span class="sourceLineNo">486</span> for (Pair&lt;RegionInfo, ServerName&gt; pair: pairs) {<a name="line.486"></a>
495 <span class="sourceLineNo">487</span> result.add(pair.getFirst());<a name="line.487"></a>
496 <span class="sourceLineNo">488</span> }<a name="line.488"></a>
497 <span class="sourceLineNo">489</span> return result;<a name="line.489"></a>
498 <span class="sourceLineNo">490</span> }<a name="line.490"></a>
499 <span class="sourceLineNo">491</span><a name="line.491"></a>
500 <span class="sourceLineNo">492</span> /**<a name="line.492"></a>
501 <span class="sourceLineNo">493</span> * @param current region of current table we're working with<a name="line.493"></a>
502 <span class="sourceLineNo">494</span> * @param tableName table we're checking against<a name="line.494"></a>
503 <span class="sourceLineNo">495</span> * @return True if &lt;code&gt;current&lt;/code&gt; tablename is equal to<a name="line.495"></a>
504 <span class="sourceLineNo">496</span> * &lt;code&gt;tableName&lt;/code&gt;<a name="line.496"></a>
505 <span class="sourceLineNo">497</span> */<a name="line.497"></a>
506 <span class="sourceLineNo">498</span> static boolean isInsideTable(final RegionInfo current, final TableName tableName) {<a name="line.498"></a>
507 <span class="sourceLineNo">499</span> return tableName.equals(current.getTable());<a name="line.499"></a>
508 <span class="sourceLineNo">500</span> }<a name="line.500"></a>
509 <span class="sourceLineNo">501</span><a name="line.501"></a>
510 <span class="sourceLineNo">502</span> /**<a name="line.502"></a>
511 <span class="sourceLineNo">503</span> * @param tableName table we're working with<a name="line.503"></a>
512 <span class="sourceLineNo">504</span> * @return start row for scanning META according to query type<a name="line.504"></a>
513 <span class="sourceLineNo">505</span> */<a name="line.505"></a>
514 <span class="sourceLineNo">506</span> public static byte[] getTableStartRowForMeta(TableName tableName, QueryType type) {<a name="line.506"></a>
515 <span class="sourceLineNo">507</span> if (tableName == null) {<a name="line.507"></a>
516 <span class="sourceLineNo">508</span> return null;<a name="line.508"></a>
517 <span class="sourceLineNo">509</span> }<a name="line.509"></a>
518 <span class="sourceLineNo">510</span> switch (type) {<a name="line.510"></a>
519 <span class="sourceLineNo">511</span> case REGION:<a name="line.511"></a>
520 <span class="sourceLineNo">512</span> byte[] startRow = new byte[tableName.getName().length + 2];<a name="line.512"></a>
521 <span class="sourceLineNo">513</span> System.arraycopy(tableName.getName(), 0, startRow, 0, tableName.getName().length);<a name="line.513"></a>
522 <span class="sourceLineNo">514</span> startRow[startRow.length - 2] = HConstants.DELIMITER;<a name="line.514"></a>
523 <span class="sourceLineNo">515</span> startRow[startRow.length - 1] = HConstants.DELIMITER;<a name="line.515"></a>
524 <span class="sourceLineNo">516</span> return startRow;<a name="line.516"></a>
525 <span class="sourceLineNo">517</span> case ALL:<a name="line.517"></a>
526 <span class="sourceLineNo">518</span> case TABLE:<a name="line.518"></a>
527 <span class="sourceLineNo">519</span> default:<a name="line.519"></a>
528 <span class="sourceLineNo">520</span> return tableName.getName();<a name="line.520"></a>
529 <span class="sourceLineNo">521</span> }<a name="line.521"></a>
530 <span class="sourceLineNo">522</span> }<a name="line.522"></a>
531 <span class="sourceLineNo">523</span><a name="line.523"></a>
532 <span class="sourceLineNo">524</span> /**<a name="line.524"></a>
533 <span class="sourceLineNo">525</span> * @param tableName table we're working with<a name="line.525"></a>
534 <span class="sourceLineNo">526</span> * @return stop row for scanning META according to query type<a name="line.526"></a>
535 <span class="sourceLineNo">527</span> */<a name="line.527"></a>
536 <span class="sourceLineNo">528</span> public static byte[] getTableStopRowForMeta(TableName tableName, QueryType type) {<a name="line.528"></a>
537 <span class="sourceLineNo">529</span> if (tableName == null) {<a name="line.529"></a>
538 <span class="sourceLineNo">530</span> return null;<a name="line.530"></a>
539 <span class="sourceLineNo">531</span> }<a name="line.531"></a>
540 <span class="sourceLineNo">532</span> final byte[] stopRow;<a name="line.532"></a>
541 <span class="sourceLineNo">533</span> switch (type) {<a name="line.533"></a>
542 <span class="sourceLineNo">534</span> case REGION:<a name="line.534"></a>
543 <span class="sourceLineNo">535</span> stopRow = new byte[tableName.getName().length + 3];<a name="line.535"></a>
544 <span class="sourceLineNo">536</span> System.arraycopy(tableName.getName(), 0, stopRow, 0, tableName.getName().length);<a name="line.536"></a>
545 <span class="sourceLineNo">537</span> stopRow[stopRow.length - 3] = ' ';<a name="line.537"></a>
546 <span class="sourceLineNo">538</span> stopRow[stopRow.length - 2] = HConstants.DELIMITER;<a name="line.538"></a>
547 <span class="sourceLineNo">539</span> stopRow[stopRow.length - 1] = HConstants.DELIMITER;<a name="line.539"></a>
548 <span class="sourceLineNo">540</span> break;<a name="line.540"></a>
549 <span class="sourceLineNo">541</span> case ALL:<a name="line.541"></a>
550 <span class="sourceLineNo">542</span> case TABLE:<a name="line.542"></a>
551 <span class="sourceLineNo">543</span> default:<a name="line.543"></a>
552 <span class="sourceLineNo">544</span> stopRow = new byte[tableName.getName().length + 1];<a name="line.544"></a>
553 <span class="sourceLineNo">545</span> System.arraycopy(tableName.getName(), 0, stopRow, 0, tableName.getName().length);<a name="line.545"></a>
554 <span class="sourceLineNo">546</span> stopRow[stopRow.length - 1] = ' ';<a name="line.546"></a>
555 <span class="sourceLineNo">547</span> break;<a name="line.547"></a>
556 <span class="sourceLineNo">548</span> }<a name="line.548"></a>
557 <span class="sourceLineNo">549</span> return stopRow;<a name="line.549"></a>
558 <span class="sourceLineNo">550</span> }<a name="line.550"></a>
559 <span class="sourceLineNo">551</span><a name="line.551"></a>
560 <span class="sourceLineNo">552</span> /**<a name="line.552"></a>
561 <span class="sourceLineNo">553</span> * This method creates a Scan object that will only scan catalog rows that<a name="line.553"></a>
562 <span class="sourceLineNo">554</span> * belong to the specified table. It doesn't specify any columns.<a name="line.554"></a>
563 <span class="sourceLineNo">555</span> * This is a better alternative to just using a start row and scan until<a name="line.555"></a>
564 <span class="sourceLineNo">556</span> * it hits a new table since that requires parsing the HRI to get the table<a name="line.556"></a>
565 <span class="sourceLineNo">557</span> * name.<a name="line.557"></a>
566 <span class="sourceLineNo">558</span> * @param tableName bytes of table's name<a name="line.558"></a>
567 <span class="sourceLineNo">559</span> * @return configured Scan object<a name="line.559"></a>
568 <span class="sourceLineNo">560</span> */<a name="line.560"></a>
569 <span class="sourceLineNo">561</span> @Deprecated<a name="line.561"></a>
570 <span class="sourceLineNo">562</span> public static Scan getScanForTableName(Connection connection, TableName tableName) {<a name="line.562"></a>
571 <span class="sourceLineNo">563</span> // Start key is just the table name with delimiters<a name="line.563"></a>
572 <span class="sourceLineNo">564</span> byte[] startKey = getTableStartRowForMeta(tableName, QueryType.REGION);<a name="line.564"></a>
573 <span class="sourceLineNo">565</span> // Stop key appends the smallest possible char to the table name<a name="line.565"></a>
574 <span class="sourceLineNo">566</span> byte[] stopKey = getTableStopRowForMeta(tableName, QueryType.REGION);<a name="line.566"></a>
575 <span class="sourceLineNo">567</span><a name="line.567"></a>
576 <span class="sourceLineNo">568</span> Scan scan = getMetaScan(connection, -1);<a name="line.568"></a>
577 <span class="sourceLineNo">569</span> scan.setStartRow(startKey);<a name="line.569"></a>
578 <span class="sourceLineNo">570</span> scan.setStopRow(stopKey);<a name="line.570"></a>
579 <span class="sourceLineNo">571</span> return scan;<a name="line.571"></a>
580 <span class="sourceLineNo">572</span> }<a name="line.572"></a>
581 <span class="sourceLineNo">573</span><a name="line.573"></a>
582 <span class="sourceLineNo">574</span> private static Scan getMetaScan(Connection connection, int rowUpperLimit) {<a name="line.574"></a>
583 <span class="sourceLineNo">575</span> Scan scan = new Scan();<a name="line.575"></a>
584 <span class="sourceLineNo">576</span> int scannerCaching = connection.getConfiguration()<a name="line.576"></a>
585 <span class="sourceLineNo">577</span> .getInt(HConstants.HBASE_META_SCANNER_CACHING,<a name="line.577"></a>
586 <span class="sourceLineNo">578</span> HConstants.DEFAULT_HBASE_META_SCANNER_CACHING);<a name="line.578"></a>
587 <span class="sourceLineNo">579</span> if (connection.getConfiguration().getBoolean(HConstants.USE_META_REPLICAS,<a name="line.579"></a>
588 <span class="sourceLineNo">580</span> HConstants.DEFAULT_USE_META_REPLICAS)) {<a name="line.580"></a>
589 <span class="sourceLineNo">581</span> scan.setConsistency(Consistency.TIMELINE);<a name="line.581"></a>
590 <span class="sourceLineNo">582</span> }<a name="line.582"></a>
591 <span class="sourceLineNo">583</span> if (rowUpperLimit &gt; 0) {<a name="line.583"></a>
592 <span class="sourceLineNo">584</span> scan.setLimit(rowUpperLimit);<a name="line.584"></a>
593 <span class="sourceLineNo">585</span> scan.setReadType(Scan.ReadType.PREAD);<a name="line.585"></a>
594 <span class="sourceLineNo">586</span> }<a name="line.586"></a>
595 <span class="sourceLineNo">587</span> scan.setCaching(scannerCaching);<a name="line.587"></a>
596 <span class="sourceLineNo">588</span> return scan;<a name="line.588"></a>
597 <span class="sourceLineNo">589</span> }<a name="line.589"></a>
598 <span class="sourceLineNo">590</span> /**<a name="line.590"></a>
599 <span class="sourceLineNo">591</span> * Do not use this method to get meta table regions, use methods in MetaTableLocator instead.<a name="line.591"></a>
600 <span class="sourceLineNo">592</span> * @param connection connection we're using<a name="line.592"></a>
601 <span class="sourceLineNo">593</span> * @param tableName table we're looking for<a name="line.593"></a>
602 <span class="sourceLineNo">594</span> * @return Return list of regioninfos and server.<a name="line.594"></a>
603 <span class="sourceLineNo">595</span> * @throws IOException<a name="line.595"></a>
604 <span class="sourceLineNo">596</span> */<a name="line.596"></a>
605 <span class="sourceLineNo">597</span> public static List&lt;Pair&lt;RegionInfo, ServerName&gt;&gt;<a name="line.597"></a>
606 <span class="sourceLineNo">598</span> getTableRegionsAndLocations(Connection connection, TableName tableName)<a name="line.598"></a>
607 <span class="sourceLineNo">599</span> throws IOException {<a name="line.599"></a>
608 <span class="sourceLineNo">600</span> return getTableRegionsAndLocations(connection, tableName, true);<a name="line.600"></a>
609 <span class="sourceLineNo">601</span> }<a name="line.601"></a>
610 <span class="sourceLineNo">602</span><a name="line.602"></a>
611 <span class="sourceLineNo">603</span> /**<a name="line.603"></a>
612 <span class="sourceLineNo">604</span> * Do not use this method to get meta table regions, use methods in MetaTableLocator instead.<a name="line.604"></a>
613 <span class="sourceLineNo">605</span> * @param connection connection we're using<a name="line.605"></a>
614 <span class="sourceLineNo">606</span> * @param tableName table to work with, can be null for getting all regions<a name="line.606"></a>
615 <span class="sourceLineNo">607</span> * @param excludeOfflinedSplitParents don't return split parents<a name="line.607"></a>
616 <span class="sourceLineNo">608</span> * @return Return list of regioninfos and server addresses.<a name="line.608"></a>
617 <span class="sourceLineNo">609</span> * @throws IOException<a name="line.609"></a>
618 <span class="sourceLineNo">610</span> */<a name="line.610"></a>
619 <span class="sourceLineNo">611</span> public static List&lt;Pair&lt;RegionInfo, ServerName&gt;&gt; getTableRegionsAndLocations(<a name="line.611"></a>
620 <span class="sourceLineNo">612</span> Connection connection, @Nullable final TableName tableName,<a name="line.612"></a>
621 <span class="sourceLineNo">613</span> final boolean excludeOfflinedSplitParents) throws IOException {<a name="line.613"></a>
622 <span class="sourceLineNo">614</span> if (tableName != null &amp;&amp; tableName.equals(TableName.META_TABLE_NAME)) {<a name="line.614"></a>
623 <span class="sourceLineNo">615</span> throw new IOException("This method can't be used to locate meta regions;"<a name="line.615"></a>
624 <span class="sourceLineNo">616</span> + " use MetaTableLocator instead");<a name="line.616"></a>
625 <span class="sourceLineNo">617</span> }<a name="line.617"></a>
626 <span class="sourceLineNo">618</span> // Make a version of CollectingVisitor that collects RegionInfo and ServerAddress<a name="line.618"></a>
627 <span class="sourceLineNo">619</span> CollectingVisitor&lt;Pair&lt;RegionInfo, ServerName&gt;&gt; visitor =<a name="line.619"></a>
628 <span class="sourceLineNo">620</span> new CollectingVisitor&lt;Pair&lt;RegionInfo, ServerName&gt;&gt;() {<a name="line.620"></a>
629 <span class="sourceLineNo">621</span> private RegionLocations current = null;<a name="line.621"></a>
630 <span class="sourceLineNo">622</span><a name="line.622"></a>
631 <span class="sourceLineNo">623</span> @Override<a name="line.623"></a>
632 <span class="sourceLineNo">624</span> public boolean visit(Result r) throws IOException {<a name="line.624"></a>
633 <span class="sourceLineNo">625</span> current = getRegionLocations(r);<a name="line.625"></a>
634 <span class="sourceLineNo">626</span> if (current == null || current.getRegionLocation().getRegionInfo() == null) {<a name="line.626"></a>
635 <span class="sourceLineNo">627</span> LOG.warn("No serialized RegionInfo in " + r);<a name="line.627"></a>
636 <span class="sourceLineNo">628</span> return true;<a name="line.628"></a>
637 <span class="sourceLineNo">629</span> }<a name="line.629"></a>
638 <span class="sourceLineNo">630</span> RegionInfo hri = current.getRegionLocation().getRegionInfo();<a name="line.630"></a>
639 <span class="sourceLineNo">631</span> if (excludeOfflinedSplitParents &amp;&amp; hri.isSplitParent()) return true;<a name="line.631"></a>
640 <span class="sourceLineNo">632</span> // Else call super and add this Result to the collection.<a name="line.632"></a>
641 <span class="sourceLineNo">633</span> return super.visit(r);<a name="line.633"></a>
642 <span class="sourceLineNo">634</span> }<a name="line.634"></a>
643 <span class="sourceLineNo">635</span><a name="line.635"></a>
644 <span class="sourceLineNo">636</span> @Override<a name="line.636"></a>
645 <span class="sourceLineNo">637</span> void add(Result r) {<a name="line.637"></a>
646 <span class="sourceLineNo">638</span> if (current == null) {<a name="line.638"></a>
647 <span class="sourceLineNo">639</span> return;<a name="line.639"></a>
648 <span class="sourceLineNo">640</span> }<a name="line.640"></a>
649 <span class="sourceLineNo">641</span> for (HRegionLocation loc : current.getRegionLocations()) {<a name="line.641"></a>
650 <span class="sourceLineNo">642</span> if (loc != null) {<a name="line.642"></a>
651 <span class="sourceLineNo">643</span> this.results.add(new Pair&lt;&gt;(loc.getRegionInfo(), loc.getServerName()));<a name="line.643"></a>
652 <span class="sourceLineNo">644</span> }<a name="line.644"></a>
653 <span class="sourceLineNo">645</span> }<a name="line.645"></a>
654 <span class="sourceLineNo">646</span> }<a name="line.646"></a>
655 <span class="sourceLineNo">647</span> };<a name="line.647"></a>
656 <span class="sourceLineNo">648</span> scanMeta(connection,<a name="line.648"></a>
657 <span class="sourceLineNo">649</span> getTableStartRowForMeta(tableName, QueryType.REGION),<a name="line.649"></a>
658 <span class="sourceLineNo">650</span> getTableStopRowForMeta(tableName, QueryType.REGION),<a name="line.650"></a>
659 <span class="sourceLineNo">651</span> QueryType.REGION, visitor);<a name="line.651"></a>
660 <span class="sourceLineNo">652</span> return visitor.getResults();<a name="line.652"></a>
661 <span class="sourceLineNo">653</span> }<a name="line.653"></a>
662 <span class="sourceLineNo">654</span><a name="line.654"></a>
663 <span class="sourceLineNo">655</span> /**<a name="line.655"></a>
664 <span class="sourceLineNo">656</span> * @param connection connection we're using<a name="line.656"></a>
665 <span class="sourceLineNo">657</span> * @param serverName server whose regions we're interested in<a name="line.657"></a>
666 <span class="sourceLineNo">658</span> * @return List of user regions installed on this server (does not include<a name="line.658"></a>
667 <span class="sourceLineNo">659</span> * catalog regions).<a name="line.659"></a>
668 <span class="sourceLineNo">660</span> * @throws IOException<a name="line.660"></a>
669 <span class="sourceLineNo">661</span> */<a name="line.661"></a>
670 <span class="sourceLineNo">662</span> public static NavigableMap&lt;RegionInfo, Result&gt;<a name="line.662"></a>
671 <span class="sourceLineNo">663</span> getServerUserRegions(Connection connection, final ServerName serverName)<a name="line.663"></a>
672 <span class="sourceLineNo">664</span> throws IOException {<a name="line.664"></a>
673 <span class="sourceLineNo">665</span> final NavigableMap&lt;RegionInfo, Result&gt; hris = new TreeMap&lt;&gt;();<a name="line.665"></a>
674 <span class="sourceLineNo">666</span> // Fill the above hris map with entries from hbase:meta that have the passed<a name="line.666"></a>
675 <span class="sourceLineNo">667</span> // servername.<a name="line.667"></a>
676 <span class="sourceLineNo">668</span> CollectingVisitor&lt;Result&gt; v = new CollectingVisitor&lt;Result&gt;() {<a name="line.668"></a>
677 <span class="sourceLineNo">669</span> @Override<a name="line.669"></a>
678 <span class="sourceLineNo">670</span> void add(Result r) {<a name="line.670"></a>
679 <span class="sourceLineNo">671</span> if (r == null || r.isEmpty()) return;<a name="line.671"></a>
680 <span class="sourceLineNo">672</span> RegionLocations locations = getRegionLocations(r);<a name="line.672"></a>
681 <span class="sourceLineNo">673</span> if (locations == null) return;<a name="line.673"></a>
682 <span class="sourceLineNo">674</span> for (HRegionLocation loc : locations.getRegionLocations()) {<a name="line.674"></a>
683 <span class="sourceLineNo">675</span> if (loc != null) {<a name="line.675"></a>
684 <span class="sourceLineNo">676</span> if (loc.getServerName() != null &amp;&amp; loc.getServerName().equals(serverName)) {<a name="line.676"></a>
685 <span class="sourceLineNo">677</span> hris.put(loc.getRegionInfo(), r);<a name="line.677"></a>
686 <span class="sourceLineNo">678</span> }<a name="line.678"></a>
687 <span class="sourceLineNo">679</span> }<a name="line.679"></a>
688 <span class="sourceLineNo">680</span> }<a name="line.680"></a>
689 <span class="sourceLineNo">681</span> }<a name="line.681"></a>
690 <span class="sourceLineNo">682</span> };<a name="line.682"></a>
691 <span class="sourceLineNo">683</span> scanMeta(connection, null, null, QueryType.REGION, v);<a name="line.683"></a>
692 <span class="sourceLineNo">684</span> return hris;<a name="line.684"></a>
693 <span class="sourceLineNo">685</span> }<a name="line.685"></a>
694 <span class="sourceLineNo">686</span><a name="line.686"></a>
695 <span class="sourceLineNo">687</span> public static void fullScanMetaAndPrint(Connection connection)<a name="line.687"></a>
696 <span class="sourceLineNo">688</span> throws IOException {<a name="line.688"></a>
697 <span class="sourceLineNo">689</span> Visitor v = new Visitor() {<a name="line.689"></a>
698 <span class="sourceLineNo">690</span> @Override<a name="line.690"></a>
699 <span class="sourceLineNo">691</span> public boolean visit(Result r) throws IOException {<a name="line.691"></a>
700 <span class="sourceLineNo">692</span> if (r == null || r.isEmpty()) return true;<a name="line.692"></a>
701 <span class="sourceLineNo">693</span> LOG.info("fullScanMetaAndPrint.Current Meta Row: " + r);<a name="line.693"></a>
702 <span class="sourceLineNo">694</span> TableState state = getTableState(r);<a name="line.694"></a>
703 <span class="sourceLineNo">695</span> if (state != null) {<a name="line.695"></a>
704 <span class="sourceLineNo">696</span> LOG.info("Table State: " + state);<a name="line.696"></a>
705 <span class="sourceLineNo">697</span> } else {<a name="line.697"></a>
706 <span class="sourceLineNo">698</span> RegionLocations locations = getRegionLocations(r);<a name="line.698"></a>
707 <span class="sourceLineNo">699</span> if (locations == null) return true;<a name="line.699"></a>
708 <span class="sourceLineNo">700</span> for (HRegionLocation loc : locations.getRegionLocations()) {<a name="line.700"></a>
709 <span class="sourceLineNo">701</span> if (loc != null) {<a name="line.701"></a>
710 <span class="sourceLineNo">702</span> LOG.info("fullScanMetaAndPrint.HRI Print= " + loc.getRegionInfo());<a name="line.702"></a>
711 <span class="sourceLineNo">703</span> }<a name="line.703"></a>
712 <span class="sourceLineNo">704</span> }<a name="line.704"></a>
713 <span class="sourceLineNo">705</span> }<a name="line.705"></a>
714 <span class="sourceLineNo">706</span> return true;<a name="line.706"></a>
715 <span class="sourceLineNo">707</span> }<a name="line.707"></a>
716 <span class="sourceLineNo">708</span> };<a name="line.708"></a>
717 <span class="sourceLineNo">709</span> scanMeta(connection, null, null, QueryType.ALL, v);<a name="line.709"></a>
718 <span class="sourceLineNo">710</span> }<a name="line.710"></a>
719 <span class="sourceLineNo">711</span><a name="line.711"></a>
720 <span class="sourceLineNo">712</span> public static void scanMetaForTableRegions(Connection connection,<a name="line.712"></a>
721 <span class="sourceLineNo">713</span> Visitor visitor, TableName tableName) throws IOException {<a name="line.713"></a>
722 <span class="sourceLineNo">714</span> scanMeta(connection, tableName, QueryType.REGION, Integer.MAX_VALUE, visitor);<a name="line.714"></a>
723 <span class="sourceLineNo">715</span> }<a name="line.715"></a>
724 <span class="sourceLineNo">716</span><a name="line.716"></a>
725 <span class="sourceLineNo">717</span> public static void scanMeta(Connection connection, TableName table,<a name="line.717"></a>
726 <span class="sourceLineNo">718</span> QueryType type, int maxRows, final Visitor visitor) throws IOException {<a name="line.718"></a>
727 <span class="sourceLineNo">719</span> scanMeta(connection, getTableStartRowForMeta(table, type), getTableStopRowForMeta(table, type),<a name="line.719"></a>
728 <span class="sourceLineNo">720</span> type, maxRows, visitor);<a name="line.720"></a>
729 <span class="sourceLineNo">721</span> }<a name="line.721"></a>
730 <span class="sourceLineNo">722</span><a name="line.722"></a>
731 <span class="sourceLineNo">723</span> public static void scanMeta(Connection connection,<a name="line.723"></a>
732 <span class="sourceLineNo">724</span> @Nullable final byte[] startRow, @Nullable final byte[] stopRow,<a name="line.724"></a>
733 <span class="sourceLineNo">725</span> QueryType type, final Visitor visitor) throws IOException {<a name="line.725"></a>
734 <span class="sourceLineNo">726</span> scanMeta(connection, startRow, stopRow, type, Integer.MAX_VALUE, visitor);<a name="line.726"></a>
735 <span class="sourceLineNo">727</span> }<a name="line.727"></a>
736 <span class="sourceLineNo">728</span><a name="line.728"></a>
737 <span class="sourceLineNo">729</span> /**<a name="line.729"></a>
738 <span class="sourceLineNo">730</span> * Performs a scan of META table for given table starting from<a name="line.730"></a>
739 <span class="sourceLineNo">731</span> * given row.<a name="line.731"></a>
740 <span class="sourceLineNo">732</span> *<a name="line.732"></a>
741 <span class="sourceLineNo">733</span> * @param connection connection we're using<a name="line.733"></a>
742 <span class="sourceLineNo">734</span> * @param visitor visitor to call<a name="line.734"></a>
743 <span class="sourceLineNo">735</span> * @param tableName table withing we scan<a name="line.735"></a>
744 <span class="sourceLineNo">736</span> * @param row start scan from this row<a name="line.736"></a>
745 <span class="sourceLineNo">737</span> * @param rowLimit max number of rows to return<a name="line.737"></a>
746 <span class="sourceLineNo">738</span> * @throws IOException<a name="line.738"></a>
747 <span class="sourceLineNo">739</span> */<a name="line.739"></a>
748 <span class="sourceLineNo">740</span> public static void scanMeta(Connection connection,<a name="line.740"></a>
749 <span class="sourceLineNo">741</span> final Visitor visitor, final TableName tableName,<a name="line.741"></a>
750 <span class="sourceLineNo">742</span> final byte[] row, final int rowLimit)<a name="line.742"></a>
751 <span class="sourceLineNo">743</span> throws IOException {<a name="line.743"></a>
752 <span class="sourceLineNo">744</span><a name="line.744"></a>
753 <span class="sourceLineNo">745</span> byte[] startRow = null;<a name="line.745"></a>
754 <span class="sourceLineNo">746</span> byte[] stopRow = null;<a name="line.746"></a>
755 <span class="sourceLineNo">747</span> if (tableName != null) {<a name="line.747"></a>
756 <span class="sourceLineNo">748</span> startRow =<a name="line.748"></a>
757 <span class="sourceLineNo">749</span> getTableStartRowForMeta(tableName, QueryType.REGION);<a name="line.749"></a>
758 <span class="sourceLineNo">750</span> if (row != null) {<a name="line.750"></a>
759 <span class="sourceLineNo">751</span> RegionInfo closestRi =<a name="line.751"></a>
760 <span class="sourceLineNo">752</span> getClosestRegionInfo(connection, tableName, row);<a name="line.752"></a>
761 <span class="sourceLineNo">753</span> startRow = RegionInfo<a name="line.753"></a>
762 <span class="sourceLineNo">754</span> .createRegionName(tableName, closestRi.getStartKey(), HConstants.ZEROES, false);<a name="line.754"></a>
763 <span class="sourceLineNo">755</span> }<a name="line.755"></a>
764 <span class="sourceLineNo">756</span> stopRow =<a name="line.756"></a>
765 <span class="sourceLineNo">757</span> getTableStopRowForMeta(tableName, QueryType.REGION);<a name="line.757"></a>
766 <span class="sourceLineNo">758</span> }<a name="line.758"></a>
767 <span class="sourceLineNo">759</span> scanMeta(connection, startRow, stopRow, QueryType.REGION, rowLimit, visitor);<a name="line.759"></a>
768 <span class="sourceLineNo">760</span> }<a name="line.760"></a>
769 <span class="sourceLineNo">761</span><a name="line.761"></a>
770 <span class="sourceLineNo">762</span><a name="line.762"></a>
771 <span class="sourceLineNo">763</span> /**<a name="line.763"></a>
772 <span class="sourceLineNo">764</span> * Performs a scan of META table.<a name="line.764"></a>
773 <span class="sourceLineNo">765</span> * @param connection connection we're using<a name="line.765"></a>
774 <span class="sourceLineNo">766</span> * @param startRow Where to start the scan. Pass null if want to begin scan<a name="line.766"></a>
775 <span class="sourceLineNo">767</span> * at first row.<a name="line.767"></a>
776 <span class="sourceLineNo">768</span> * @param stopRow Where to stop the scan. Pass null if want to scan all rows<a name="line.768"></a>
777 <span class="sourceLineNo">769</span> * from the start one<a name="line.769"></a>
778 <span class="sourceLineNo">770</span> * @param type scanned part of meta<a name="line.770"></a>
779 <span class="sourceLineNo">771</span> * @param maxRows maximum rows to return<a name="line.771"></a>
780 <span class="sourceLineNo">772</span> * @param visitor Visitor invoked against each row.<a name="line.772"></a>
781 <span class="sourceLineNo">773</span> * @throws IOException<a name="line.773"></a>
782 <span class="sourceLineNo">774</span> */<a name="line.774"></a>
783 <span class="sourceLineNo">775</span> public static void scanMeta(Connection connection,<a name="line.775"></a>
784 <span class="sourceLineNo">776</span> @Nullable final byte[] startRow, @Nullable final byte[] stopRow,<a name="line.776"></a>
785 <span class="sourceLineNo">777</span> QueryType type, int maxRows, final Visitor visitor)<a name="line.777"></a>
786 <span class="sourceLineNo">778</span> throws IOException {<a name="line.778"></a>
787 <span class="sourceLineNo">779</span> int rowUpperLimit = maxRows &gt; 0 ? maxRows : Integer.MAX_VALUE;<a name="line.779"></a>
788 <span class="sourceLineNo">780</span> Scan scan = getMetaScan(connection, rowUpperLimit);<a name="line.780"></a>
789 <span class="sourceLineNo">781</span><a name="line.781"></a>
790 <span class="sourceLineNo">782</span> for (byte[] family : type.getFamilies()) {<a name="line.782"></a>
791 <span class="sourceLineNo">783</span> scan.addFamily(family);<a name="line.783"></a>
792 <span class="sourceLineNo">784</span> }<a name="line.784"></a>
793 <span class="sourceLineNo">785</span> if (startRow != null) scan.setStartRow(startRow);<a name="line.785"></a>
794 <span class="sourceLineNo">786</span> if (stopRow != null) scan.setStopRow(stopRow);<a name="line.786"></a>
795 <span class="sourceLineNo">787</span><a name="line.787"></a>
796 <span class="sourceLineNo">788</span> if (LOG.isTraceEnabled()) {<a name="line.788"></a>
797 <span class="sourceLineNo">789</span> LOG.trace("Scanning META"<a name="line.789"></a>
798 <span class="sourceLineNo">790</span> + " starting at row=" + Bytes.toStringBinary(startRow)<a name="line.790"></a>
799 <span class="sourceLineNo">791</span> + " stopping at row=" + Bytes.toStringBinary(stopRow)<a name="line.791"></a>
800 <span class="sourceLineNo">792</span> + " for max=" + rowUpperLimit<a name="line.792"></a>
801 <span class="sourceLineNo">793</span> + " with caching=" + scan.getCaching());<a name="line.793"></a>
802 <span class="sourceLineNo">794</span> }<a name="line.794"></a>
803 <span class="sourceLineNo">795</span><a name="line.795"></a>
804 <span class="sourceLineNo">796</span> int currentRow = 0;<a name="line.796"></a>
805 <span class="sourceLineNo">797</span> try (Table metaTable = getMetaHTable(connection)) {<a name="line.797"></a>
806 <span class="sourceLineNo">798</span> try (ResultScanner scanner = metaTable.getScanner(scan)) {<a name="line.798"></a>
807 <span class="sourceLineNo">799</span> Result data;<a name="line.799"></a>
808 <span class="sourceLineNo">800</span> while ((data = scanner.next()) != null) {<a name="line.800"></a>
809 <span class="sourceLineNo">801</span> if (data.isEmpty()) continue;<a name="line.801"></a>
810 <span class="sourceLineNo">802</span> // Break if visit returns false.<a name="line.802"></a>
811 <span class="sourceLineNo">803</span> if (!visitor.visit(data)) break;<a name="line.803"></a>
812 <span class="sourceLineNo">804</span> if (++currentRow &gt;= rowUpperLimit) break;<a name="line.804"></a>
813 <span class="sourceLineNo">805</span> }<a name="line.805"></a>
814 <span class="sourceLineNo">806</span> }<a name="line.806"></a>
815 <span class="sourceLineNo">807</span> }<a name="line.807"></a>
816 <span class="sourceLineNo">808</span> if (visitor != null &amp;&amp; visitor instanceof Closeable) {<a name="line.808"></a>
817 <span class="sourceLineNo">809</span> try {<a name="line.809"></a>
818 <span class="sourceLineNo">810</span> ((Closeable) visitor).close();<a name="line.810"></a>
819 <span class="sourceLineNo">811</span> } catch (Throwable t) {<a name="line.811"></a>
820 <span class="sourceLineNo">812</span> ExceptionUtil.rethrowIfInterrupt(t);<a name="line.812"></a>
821 <span class="sourceLineNo">813</span> LOG.debug("Got exception in closing the meta scanner visitor", t);<a name="line.813"></a>
822 <span class="sourceLineNo">814</span> }<a name="line.814"></a>
823 <span class="sourceLineNo">815</span> }<a name="line.815"></a>
824 <span class="sourceLineNo">816</span> }<a name="line.816"></a>
825 <span class="sourceLineNo">817</span><a name="line.817"></a>
826 <span class="sourceLineNo">818</span> /**<a name="line.818"></a>
827 <span class="sourceLineNo">819</span> * @return Get closest metatable region row to passed &lt;code&gt;row&lt;/code&gt;<a name="line.819"></a>
828 <span class="sourceLineNo">820</span> * @throws java.io.IOException<a name="line.820"></a>
829 <span class="sourceLineNo">821</span> */<a name="line.821"></a>
830 <span class="sourceLineNo">822</span> @NonNull<a name="line.822"></a>
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832 <span class="sourceLineNo">824</span> @NonNull final TableName tableName,<a name="line.824"></a>
833 <span class="sourceLineNo">825</span> @NonNull final byte[] row)<a name="line.825"></a>
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836 <span class="sourceLineNo">828</span> Scan scan = getMetaScan(connection, 1);<a name="line.828"></a>
837 <span class="sourceLineNo">829</span> scan.setReversed(true);<a name="line.829"></a>
838 <span class="sourceLineNo">830</span> scan.setStartRow(searchRow);<a name="line.830"></a>
839 <span class="sourceLineNo">831</span> try (ResultScanner resultScanner = getMetaHTable(connection).getScanner(scan)) {<a name="line.831"></a>
840 <span class="sourceLineNo">832</span> Result result = resultScanner.next();<a name="line.832"></a>
841 <span class="sourceLineNo">833</span> if (result == null) {<a name="line.833"></a>
842 <span class="sourceLineNo">834</span> throw new TableNotFoundException("Cannot find row in META " +<a name="line.834"></a>
843 <span class="sourceLineNo">835</span> " for table: " + tableName + ", row=" + Bytes.toStringBinary(row));<a name="line.835"></a>
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846 <span class="sourceLineNo">838</span> if (regionInfo == null) {<a name="line.838"></a>
847 <span class="sourceLineNo">839</span> throw new IOException("RegionInfo was null or empty in Meta for " +<a name="line.839"></a>
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849 <span class="sourceLineNo">841</span> }<a name="line.841"></a>
850 <span class="sourceLineNo">842</span> return regionInfo;<a name="line.842"></a>
851 <span class="sourceLineNo">843</span> }<a name="line.843"></a>
852 <span class="sourceLineNo">844</span> }<a name="line.844"></a>
853 <span class="sourceLineNo">845</span><a name="line.845"></a>
854 <span class="sourceLineNo">846</span> /**<a name="line.846"></a>
855 <span class="sourceLineNo">847</span> * Returns the column family used for meta columns.<a name="line.847"></a>
856 <span class="sourceLineNo">848</span> * @return HConstants.CATALOG_FAMILY.<a name="line.848"></a>
857 <span class="sourceLineNo">849</span> */<a name="line.849"></a>
858 <span class="sourceLineNo">850</span> protected static byte[] getCatalogFamily() {<a name="line.850"></a>
859 <span class="sourceLineNo">851</span> return HConstants.CATALOG_FAMILY;<a name="line.851"></a>
860 <span class="sourceLineNo">852</span> }<a name="line.852"></a>
861 <span class="sourceLineNo">853</span><a name="line.853"></a>
862 <span class="sourceLineNo">854</span> /**<a name="line.854"></a>
863 <span class="sourceLineNo">855</span> * Returns the column family used for table columns.<a name="line.855"></a>
864 <span class="sourceLineNo">856</span> * @return HConstants.TABLE_FAMILY.<a name="line.856"></a>
865 <span class="sourceLineNo">857</span> */<a name="line.857"></a>
866 <span class="sourceLineNo">858</span> protected static byte[] getTableFamily() {<a name="line.858"></a>
867 <span class="sourceLineNo">859</span> return HConstants.TABLE_FAMILY;<a name="line.859"></a>
868 <span class="sourceLineNo">860</span> }<a name="line.860"></a>
869 <span class="sourceLineNo">861</span><a name="line.861"></a>
870 <span class="sourceLineNo">862</span> /**<a name="line.862"></a>
871 <span class="sourceLineNo">863</span> * Returns the column qualifier for serialized region info<a name="line.863"></a>
872 <span class="sourceLineNo">864</span> * @return HConstants.REGIONINFO_QUALIFIER<a name="line.864"></a>
873 <span class="sourceLineNo">865</span> */<a name="line.865"></a>
874 <span class="sourceLineNo">866</span> protected static byte[] getRegionInfoColumn() {<a name="line.866"></a>
875 <span class="sourceLineNo">867</span> return HConstants.REGIONINFO_QUALIFIER;<a name="line.867"></a>
876 <span class="sourceLineNo">868</span> }<a name="line.868"></a>
877 <span class="sourceLineNo">869</span><a name="line.869"></a>
878 <span class="sourceLineNo">870</span> /**<a name="line.870"></a>
879 <span class="sourceLineNo">871</span> * Returns the column qualifier for serialized table state<a name="line.871"></a>
880 <span class="sourceLineNo">872</span> *<a name="line.872"></a>
881 <span class="sourceLineNo">873</span> * @return HConstants.TABLE_STATE_QUALIFIER<a name="line.873"></a>
882 <span class="sourceLineNo">874</span> */<a name="line.874"></a>
883 <span class="sourceLineNo">875</span> protected static byte[] getTableStateColumn() {<a name="line.875"></a>
884 <span class="sourceLineNo">876</span> return HConstants.TABLE_STATE_QUALIFIER;<a name="line.876"></a>
885 <span class="sourceLineNo">877</span> }<a name="line.877"></a>
886 <span class="sourceLineNo">878</span><a name="line.878"></a>
887 <span class="sourceLineNo">879</span> /**<a name="line.879"></a>
888 <span class="sourceLineNo">880</span> * Returns the column qualifier for serialized region state<a name="line.880"></a>
889 <span class="sourceLineNo">881</span> *<a name="line.881"></a>
890 <span class="sourceLineNo">882</span> * @return HConstants.TABLE_STATE_QUALIFIER<a name="line.882"></a>
891 <span class="sourceLineNo">883</span> */<a name="line.883"></a>
892 <span class="sourceLineNo">884</span> protected static byte[] getRegionStateColumn() {<a name="line.884"></a>
893 <span class="sourceLineNo">885</span> return HConstants.STATE_QUALIFIER;<a name="line.885"></a>
894 <span class="sourceLineNo">886</span> }<a name="line.886"></a>
895 <span class="sourceLineNo">887</span><a name="line.887"></a>
896 <span class="sourceLineNo">888</span> /**<a name="line.888"></a>
897 <span class="sourceLineNo">889</span> * Returns the column qualifier for server column for replicaId<a name="line.889"></a>
898 <span class="sourceLineNo">890</span> * @param replicaId the replicaId of the region<a name="line.890"></a>
899 <span class="sourceLineNo">891</span> * @return a byte[] for server column qualifier<a name="line.891"></a>
900 <span class="sourceLineNo">892</span> */<a name="line.892"></a>
901 <span class="sourceLineNo">893</span> @VisibleForTesting<a name="line.893"></a>
902 <span class="sourceLineNo">894</span> public static byte[] getServerColumn(int replicaId) {<a name="line.894"></a>
903 <span class="sourceLineNo">895</span> return replicaId == 0<a name="line.895"></a>
904 <span class="sourceLineNo">896</span> ? HConstants.SERVER_QUALIFIER<a name="line.896"></a>
905 <span class="sourceLineNo">897</span> : Bytes.toBytes(HConstants.SERVER_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.897"></a>
906 <span class="sourceLineNo">898</span> + String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.898"></a>
907 <span class="sourceLineNo">899</span> }<a name="line.899"></a>
908 <span class="sourceLineNo">900</span><a name="line.900"></a>
909 <span class="sourceLineNo">901</span> /**<a name="line.901"></a>
910 <span class="sourceLineNo">902</span> * Returns the column qualifier for server start code column for replicaId<a name="line.902"></a>
911 <span class="sourceLineNo">903</span> * @param replicaId the replicaId of the region<a name="line.903"></a>
912 <span class="sourceLineNo">904</span> * @return a byte[] for server start code column qualifier<a name="line.904"></a>
913 <span class="sourceLineNo">905</span> */<a name="line.905"></a>
914 <span class="sourceLineNo">906</span> @VisibleForTesting<a name="line.906"></a>
915 <span class="sourceLineNo">907</span> public static byte[] getStartCodeColumn(int replicaId) {<a name="line.907"></a>
916 <span class="sourceLineNo">908</span> return replicaId == 0<a name="line.908"></a>
917 <span class="sourceLineNo">909</span> ? HConstants.STARTCODE_QUALIFIER<a name="line.909"></a>
918 <span class="sourceLineNo">910</span> : Bytes.toBytes(HConstants.STARTCODE_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.910"></a>
919 <span class="sourceLineNo">911</span> + String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.911"></a>
920 <span class="sourceLineNo">912</span> }<a name="line.912"></a>
921 <span class="sourceLineNo">913</span><a name="line.913"></a>
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923 <span class="sourceLineNo">915</span> * Returns the column qualifier for seqNum column for replicaId<a name="line.915"></a>
924 <span class="sourceLineNo">916</span> * @param replicaId the replicaId of the region<a name="line.916"></a>
925 <span class="sourceLineNo">917</span> * @return a byte[] for seqNum column qualifier<a name="line.917"></a>
926 <span class="sourceLineNo">918</span> */<a name="line.918"></a>
927 <span class="sourceLineNo">919</span> @VisibleForTesting<a name="line.919"></a>
928 <span class="sourceLineNo">920</span> public static byte[] getSeqNumColumn(int replicaId) {<a name="line.920"></a>
929 <span class="sourceLineNo">921</span> return replicaId == 0<a name="line.921"></a>
930 <span class="sourceLineNo">922</span> ? HConstants.SEQNUM_QUALIFIER<a name="line.922"></a>
931 <span class="sourceLineNo">923</span> : Bytes.toBytes(HConstants.SEQNUM_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.923"></a>
932 <span class="sourceLineNo">924</span> + String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.924"></a>
933 <span class="sourceLineNo">925</span> }<a name="line.925"></a>
934 <span class="sourceLineNo">926</span><a name="line.926"></a>
935 <span class="sourceLineNo">927</span> /**<a name="line.927"></a>
936 <span class="sourceLineNo">928</span> * Parses the replicaId from the server column qualifier. See top of the class javadoc<a name="line.928"></a>
937 <span class="sourceLineNo">929</span> * for the actual meta layout<a name="line.929"></a>
938 <span class="sourceLineNo">930</span> * @param serverColumn the column qualifier<a name="line.930"></a>
939 <span class="sourceLineNo">931</span> * @return an int for the replicaId<a name="line.931"></a>
940 <span class="sourceLineNo">932</span> */<a name="line.932"></a>
941 <span class="sourceLineNo">933</span> @VisibleForTesting<a name="line.933"></a>
942 <span class="sourceLineNo">934</span> static int parseReplicaIdFromServerColumn(byte[] serverColumn) {<a name="line.934"></a>
943 <span class="sourceLineNo">935</span> String serverStr = Bytes.toString(serverColumn);<a name="line.935"></a>
944 <span class="sourceLineNo">936</span><a name="line.936"></a>
945 <span class="sourceLineNo">937</span> Matcher matcher = SERVER_COLUMN_PATTERN.matcher(serverStr);<a name="line.937"></a>
946 <span class="sourceLineNo">938</span> if (matcher.matches() &amp;&amp; matcher.groupCount() &gt; 0) {<a name="line.938"></a>
947 <span class="sourceLineNo">939</span> String group = matcher.group(1);<a name="line.939"></a>
948 <span class="sourceLineNo">940</span> if (group != null &amp;&amp; group.length() &gt; 0) {<a name="line.940"></a>
949 <span class="sourceLineNo">941</span> return Integer.parseInt(group.substring(1), 16);<a name="line.941"></a>
950 <span class="sourceLineNo">942</span> } else {<a name="line.942"></a>
951 <span class="sourceLineNo">943</span> return 0;<a name="line.943"></a>
952 <span class="sourceLineNo">944</span> }<a name="line.944"></a>
953 <span class="sourceLineNo">945</span> }<a name="line.945"></a>
954 <span class="sourceLineNo">946</span> return -1;<a name="line.946"></a>
955 <span class="sourceLineNo">947</span> }<a name="line.947"></a>
956 <span class="sourceLineNo">948</span><a name="line.948"></a>
957 <span class="sourceLineNo">949</span> /**<a name="line.949"></a>
958 <span class="sourceLineNo">950</span> * Returns a {@link ServerName} from catalog table {@link Result}.<a name="line.950"></a>
959 <span class="sourceLineNo">951</span> * @param r Result to pull from<a name="line.951"></a>
960 <span class="sourceLineNo">952</span> * @return A ServerName instance or null if necessary fields not found or empty.<a name="line.952"></a>
961 <span class="sourceLineNo">953</span> */<a name="line.953"></a>
962 <span class="sourceLineNo">954</span> @Nullable<a name="line.954"></a>
963 <span class="sourceLineNo">955</span> @InterfaceAudience.Private // for use by HMaster#getTableRegionRow which is used for testing only<a name="line.955"></a>
964 <span class="sourceLineNo">956</span> public static ServerName getServerName(final Result r, final int replicaId) {<a name="line.956"></a>
965 <span class="sourceLineNo">957</span> byte[] serverColumn = getServerColumn(replicaId);<a name="line.957"></a>
966 <span class="sourceLineNo">958</span> Cell cell = r.getColumnLatestCell(getCatalogFamily(), serverColumn);<a name="line.958"></a>
967 <span class="sourceLineNo">959</span> if (cell == null || cell.getValueLength() == 0) return null;<a name="line.959"></a>
968 <span class="sourceLineNo">960</span> String hostAndPort = Bytes.toString(<a name="line.960"></a>
969 <span class="sourceLineNo">961</span> cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.961"></a>
970 <span class="sourceLineNo">962</span> byte[] startcodeColumn = getStartCodeColumn(replicaId);<a name="line.962"></a>
971 <span class="sourceLineNo">963</span> cell = r.getColumnLatestCell(getCatalogFamily(), startcodeColumn);<a name="line.963"></a>
972 <span class="sourceLineNo">964</span> if (cell == null || cell.getValueLength() == 0) return null;<a name="line.964"></a>
973 <span class="sourceLineNo">965</span> try {<a name="line.965"></a>
974 <span class="sourceLineNo">966</span> return ServerName.valueOf(hostAndPort,<a name="line.966"></a>
975 <span class="sourceLineNo">967</span> Bytes.toLong(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength()));<a name="line.967"></a>
976 <span class="sourceLineNo">968</span> } catch (IllegalArgumentException e) {<a name="line.968"></a>
977 <span class="sourceLineNo">969</span> LOG.error("Ignoring invalid region for server " + hostAndPort + "; cell=" + cell, e);<a name="line.969"></a>
978 <span class="sourceLineNo">970</span> return null;<a name="line.970"></a>
979 <span class="sourceLineNo">971</span> }<a name="line.971"></a>
980 <span class="sourceLineNo">972</span> }<a name="line.972"></a>
981 <span class="sourceLineNo">973</span><a name="line.973"></a>
982 <span class="sourceLineNo">974</span> /**<a name="line.974"></a>
983 <span class="sourceLineNo">975</span> * The latest seqnum that the server writing to meta observed when opening the region.<a name="line.975"></a>
984 <span class="sourceLineNo">976</span> * E.g. the seqNum when the result of {@link #getServerName(Result, int)} was written.<a name="line.976"></a>
985 <span class="sourceLineNo">977</span> * @param r Result to pull the seqNum from<a name="line.977"></a>
986 <span class="sourceLineNo">978</span> * @return SeqNum, or HConstants.NO_SEQNUM if there's no value written.<a name="line.978"></a>
987 <span class="sourceLineNo">979</span> */<a name="line.979"></a>
988 <span class="sourceLineNo">980</span> private static long getSeqNumDuringOpen(final Result r, final int replicaId) {<a name="line.980"></a>
989 <span class="sourceLineNo">981</span> Cell cell = r.getColumnLatestCell(getCatalogFamily(), getSeqNumColumn(replicaId));<a name="line.981"></a>
990 <span class="sourceLineNo">982</span> if (cell == null || cell.getValueLength() == 0) return HConstants.NO_SEQNUM;<a name="line.982"></a>
991 <span class="sourceLineNo">983</span> return Bytes.toLong(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.983"></a>
992 <span class="sourceLineNo">984</span> }<a name="line.984"></a>
993 <span class="sourceLineNo">985</span><a name="line.985"></a>
994 <span class="sourceLineNo">986</span> /**<a name="line.986"></a>
995 <span class="sourceLineNo">987</span> * Returns an HRegionLocationList extracted from the result.<a name="line.987"></a>
996 <span class="sourceLineNo">988</span> * @return an HRegionLocationList containing all locations for the region range or null if<a name="line.988"></a>
997 <span class="sourceLineNo">989</span> * we can't deserialize the result.<a name="line.989"></a>
998 <span class="sourceLineNo">990</span> */<a name="line.990"></a>
999 <span class="sourceLineNo">991</span> @Nullable<a name="line.991"></a>
1000 <span class="sourceLineNo">992</span> public static RegionLocations getRegionLocations(final Result r) {<a name="line.992"></a>
1001 <span class="sourceLineNo">993</span> if (r == null) return null;<a name="line.993"></a>
1002 <span class="sourceLineNo">994</span> RegionInfo regionInfo = getRegionInfo(r, getRegionInfoColumn());<a name="line.994"></a>
1003 <span class="sourceLineNo">995</span> if (regionInfo == null) return null;<a name="line.995"></a>
1004 <span class="sourceLineNo">996</span><a name="line.996"></a>
1005 <span class="sourceLineNo">997</span> List&lt;HRegionLocation&gt; locations = new ArrayList&lt;&gt;(1);<a name="line.997"></a>
1006 <span class="sourceLineNo">998</span> NavigableMap&lt;byte[],NavigableMap&lt;byte[],byte[]&gt;&gt; familyMap = r.getNoVersionMap();<a name="line.998"></a>
1007 <span class="sourceLineNo">999</span><a name="line.999"></a>
1008 <span class="sourceLineNo">1000</span> locations.add(getRegionLocation(r, regionInfo, 0));<a name="line.1000"></a>
1009 <span class="sourceLineNo">1001</span><a name="line.1001"></a>
1010 <span class="sourceLineNo">1002</span> NavigableMap&lt;byte[], byte[]&gt; infoMap = familyMap.get(getCatalogFamily());<a name="line.1002"></a>
1011 <span class="sourceLineNo">1003</span> if (infoMap == null) return new RegionLocations(locations);<a name="line.1003"></a>
1012 <span class="sourceLineNo">1004</span><a name="line.1004"></a>
1013 <span class="sourceLineNo">1005</span> // iterate until all serverName columns are seen<a name="line.1005"></a>
1014 <span class="sourceLineNo">1006</span> int replicaId = 0;<a name="line.1006"></a>
1015 <span class="sourceLineNo">1007</span> byte[] serverColumn = getServerColumn(replicaId);<a name="line.1007"></a>
1016 <span class="sourceLineNo">1008</span> SortedMap&lt;byte[], byte[]&gt; serverMap = null;<a name="line.1008"></a>
1017 <span class="sourceLineNo">1009</span> serverMap = infoMap.tailMap(serverColumn, false);<a name="line.1009"></a>
1018 <span class="sourceLineNo">1010</span><a name="line.1010"></a>
1019 <span class="sourceLineNo">1011</span> if (serverMap.isEmpty()) return new RegionLocations(locations);<a name="line.1011"></a>
1020 <span class="sourceLineNo">1012</span><a name="line.1012"></a>
1021 <span class="sourceLineNo">1013</span> for (Map.Entry&lt;byte[], byte[]&gt; entry : serverMap.entrySet()) {<a name="line.1013"></a>
1022 <span class="sourceLineNo">1014</span> replicaId = parseReplicaIdFromServerColumn(entry.getKey());<a name="line.1014"></a>
1023 <span class="sourceLineNo">1015</span> if (replicaId &lt; 0) {<a name="line.1015"></a>
1024 <span class="sourceLineNo">1016</span> break;<a name="line.1016"></a>
1025 <span class="sourceLineNo">1017</span> }<a name="line.1017"></a>
1026 <span class="sourceLineNo">1018</span> HRegionLocation location = getRegionLocation(r, regionInfo, replicaId);<a name="line.1018"></a>
1027 <span class="sourceLineNo">1019</span> // In case the region replica is newly created, it's location might be null. We usually do not<a name="line.1019"></a>
1028 <span class="sourceLineNo">1020</span> // have HRL's in RegionLocations object with null ServerName. They are handled as null HRLs.<a name="line.1020"></a>
1029 <span class="sourceLineNo">1021</span> if (location == null || location.getServerName() == null) {<a name="line.1021"></a>
1030 <span class="sourceLineNo">1022</span> locations.add(null);<a name="line.1022"></a>
1031 <span class="sourceLineNo">1023</span> } else {<a name="line.1023"></a>
1032 <span class="sourceLineNo">1024</span> locations.add(location);<a name="line.1024"></a>
1033 <span class="sourceLineNo">1025</span> }<a name="line.1025"></a>
1034 <span class="sourceLineNo">1026</span> }<a name="line.1026"></a>
1035 <span class="sourceLineNo">1027</span><a name="line.1027"></a>
1036 <span class="sourceLineNo">1028</span> return new RegionLocations(locations);<a name="line.1028"></a>
1037 <span class="sourceLineNo">1029</span> }<a name="line.1029"></a>
1038 <span class="sourceLineNo">1030</span><a name="line.1030"></a>
1039 <span class="sourceLineNo">1031</span> /**<a name="line.1031"></a>
1040 <span class="sourceLineNo">1032</span> * Returns the HRegionLocation parsed from the given meta row Result<a name="line.1032"></a>
1041 <span class="sourceLineNo">1033</span> * for the given regionInfo and replicaId. The regionInfo can be the default region info<a name="line.1033"></a>
1042 <span class="sourceLineNo">1034</span> * for the replica.<a name="line.1034"></a>
1043 <span class="sourceLineNo">1035</span> * @param r the meta row result<a name="line.1035"></a>
1044 <span class="sourceLineNo">1036</span> * @param regionInfo RegionInfo for default replica<a name="line.1036"></a>
1045 <span class="sourceLineNo">1037</span> * @param replicaId the replicaId for the HRegionLocation<a name="line.1037"></a>
1046 <span class="sourceLineNo">1038</span> * @return HRegionLocation parsed from the given meta row Result for the given replicaId<a name="line.1038"></a>
1047 <span class="sourceLineNo">1039</span> */<a name="line.1039"></a>
1048 <span class="sourceLineNo">1040</span> private static HRegionLocation getRegionLocation(final Result r, final RegionInfo regionInfo,<a name="line.1040"></a>
1049 <span class="sourceLineNo">1041</span> final int replicaId) {<a name="line.1041"></a>
1050 <span class="sourceLineNo">1042</span> ServerName serverName = getServerName(r, replicaId);<a name="line.1042"></a>
1051 <span class="sourceLineNo">1043</span> long seqNum = getSeqNumDuringOpen(r, replicaId);<a name="line.1043"></a>
1052 <span class="sourceLineNo">1044</span> RegionInfo replicaInfo = RegionReplicaUtil.getRegionInfoForReplica(regionInfo, replicaId);<a name="line.1044"></a>
1053 <span class="sourceLineNo">1045</span> return new HRegionLocation(replicaInfo, serverName, seqNum);<a name="line.1045"></a>
1054 <span class="sourceLineNo">1046</span> }<a name="line.1046"></a>
1055 <span class="sourceLineNo">1047</span><a name="line.1047"></a>
1056 <span class="sourceLineNo">1048</span> /**<a name="line.1048"></a>
1057 <span class="sourceLineNo">1049</span> * Returns RegionInfo object from the column<a name="line.1049"></a>
1058 <span class="sourceLineNo">1050</span> * HConstants.CATALOG_FAMILY:HConstants.REGIONINFO_QUALIFIER of the catalog<a name="line.1050"></a>
1059 <span class="sourceLineNo">1051</span> * table Result.<a name="line.1051"></a>
1060 <span class="sourceLineNo">1052</span> * @param data a Result object from the catalog table scan<a name="line.1052"></a>
1061 <span class="sourceLineNo">1053</span> * @return RegionInfo or null<a name="line.1053"></a>
1062 <span class="sourceLineNo">1054</span> */<a name="line.1054"></a>
1063 <span class="sourceLineNo">1055</span> public static RegionInfo getRegionInfo(Result data) {<a name="line.1055"></a>
1064 <span class="sourceLineNo">1056</span> return getRegionInfo(data, HConstants.REGIONINFO_QUALIFIER);<a name="line.1056"></a>
1065 <span class="sourceLineNo">1057</span> }<a name="line.1057"></a>
1066 <span class="sourceLineNo">1058</span><a name="line.1058"></a>
1067 <span class="sourceLineNo">1059</span> /**<a name="line.1059"></a>
1068 <span class="sourceLineNo">1060</span> * Returns the RegionInfo object from the column {@link HConstants#CATALOG_FAMILY} and<a name="line.1060"></a>
1069 <span class="sourceLineNo">1061</span> * &lt;code&gt;qualifier&lt;/code&gt; of the catalog table result.<a name="line.1061"></a>
1070 <span class="sourceLineNo">1062</span> * @param r a Result object from the catalog table scan<a name="line.1062"></a>
1071 <span class="sourceLineNo">1063</span> * @param qualifier Column family qualifier<a name="line.1063"></a>
1072 <span class="sourceLineNo">1064</span> * @return An RegionInfo instance or null.<a name="line.1064"></a>
1073 <span class="sourceLineNo">1065</span> */<a name="line.1065"></a>
1074 <span class="sourceLineNo">1066</span> @Nullable<a name="line.1066"></a>
1075 <span class="sourceLineNo">1067</span> private static RegionInfo getRegionInfo(final Result r, byte [] qualifier) {<a name="line.1067"></a>
1076 <span class="sourceLineNo">1068</span> Cell cell = r.getColumnLatestCell(getCatalogFamily(), qualifier);<a name="line.1068"></a>
1077 <span class="sourceLineNo">1069</span> if (cell == null) return null;<a name="line.1069"></a>
1078 <span class="sourceLineNo">1070</span> return RegionInfo.parseFromOrNull(cell.getValueArray(),<a name="line.1070"></a>
1079 <span class="sourceLineNo">1071</span> cell.getValueOffset(), cell.getValueLength());<a name="line.1071"></a>
1080 <span class="sourceLineNo">1072</span> }<a name="line.1072"></a>
1081 <span class="sourceLineNo">1073</span><a name="line.1073"></a>
1082 <span class="sourceLineNo">1074</span> /**<a name="line.1074"></a>
1083 <span class="sourceLineNo">1075</span> * Returns the daughter regions by reading the corresponding columns of the catalog table<a name="line.1075"></a>
1084 <span class="sourceLineNo">1076</span> * Result.<a name="line.1076"></a>
1085 <span class="sourceLineNo">1077</span> * @param data a Result object from the catalog table scan<a name="line.1077"></a>
1086 <span class="sourceLineNo">1078</span> * @return a pair of RegionInfo or PairOfSameType(null, null) if the region is not a split<a name="line.1078"></a>
1087 <span class="sourceLineNo">1079</span> * parent<a name="line.1079"></a>
1088 <span class="sourceLineNo">1080</span> */<a name="line.1080"></a>
1089 <span class="sourceLineNo">1081</span> public static PairOfSameType&lt;RegionInfo&gt; getDaughterRegions(Result data) {<a name="line.1081"></a>
1090 <span class="sourceLineNo">1082</span> RegionInfo splitA = getRegionInfo(data, HConstants.SPLITA_QUALIFIER);<a name="line.1082"></a>
1091 <span class="sourceLineNo">1083</span> RegionInfo splitB = getRegionInfo(data, HConstants.SPLITB_QUALIFIER);<a name="line.1083"></a>
1092 <span class="sourceLineNo">1084</span><a name="line.1084"></a>
1093 <span class="sourceLineNo">1085</span> return new PairOfSameType&lt;&gt;(splitA, splitB);<a name="line.1085"></a>
1094 <span class="sourceLineNo">1086</span> }<a name="line.1086"></a>
1095 <span class="sourceLineNo">1087</span><a name="line.1087"></a>
1096 <span class="sourceLineNo">1088</span> /**<a name="line.1088"></a>
1097 <span class="sourceLineNo">1089</span> * Returns the merge regions by reading the corresponding columns of the catalog table<a name="line.1089"></a>
1098 <span class="sourceLineNo">1090</span> * Result.<a name="line.1090"></a>
1099 <span class="sourceLineNo">1091</span> * @param data a Result object from the catalog table scan<a name="line.1091"></a>
1100 <span class="sourceLineNo">1092</span> * @return a pair of RegionInfo or PairOfSameType(null, null) if the region is not a split<a name="line.1092"></a>
1101 <span class="sourceLineNo">1093</span> * parent<a name="line.1093"></a>
1102 <span class="sourceLineNo">1094</span> */<a name="line.1094"></a>
1103 <span class="sourceLineNo">1095</span> public static PairOfSameType&lt;RegionInfo&gt; getMergeRegions(Result data) {<a name="line.1095"></a>
1104 <span class="sourceLineNo">1096</span> RegionInfo mergeA = getRegionInfo(data, HConstants.MERGEA_QUALIFIER);<a name="line.1096"></a>
1105 <span class="sourceLineNo">1097</span> RegionInfo mergeB = getRegionInfo(data, HConstants.MERGEB_QUALIFIER);<a name="line.1097"></a>
1106 <span class="sourceLineNo">1098</span><a name="line.1098"></a>
1107 <span class="sourceLineNo">1099</span> return new PairOfSameType&lt;&gt;(mergeA, mergeB);<a name="line.1099"></a>
1108 <span class="sourceLineNo">1100</span> }<a name="line.1100"></a>
1109 <span class="sourceLineNo">1101</span><a name="line.1101"></a>
1110 <span class="sourceLineNo">1102</span> /**<a name="line.1102"></a>
1111 <span class="sourceLineNo">1103</span> * Fetch table state for given table from META table<a name="line.1103"></a>
1112 <span class="sourceLineNo">1104</span> * @param conn connection to use<a name="line.1104"></a>
1113 <span class="sourceLineNo">1105</span> * @param tableName table to fetch state for<a name="line.1105"></a>
1114 <span class="sourceLineNo">1106</span> * @return state<a name="line.1106"></a>
1115 <span class="sourceLineNo">1107</span> * @throws IOException<a name="line.1107"></a>
1116 <span class="sourceLineNo">1108</span> */<a name="line.1108"></a>
1117 <span class="sourceLineNo">1109</span> @Nullable<a name="line.1109"></a>
1118 <span class="sourceLineNo">1110</span> public static TableState getTableState(Connection conn, TableName tableName)<a name="line.1110"></a>
1119 <span class="sourceLineNo">1111</span> throws IOException {<a name="line.1111"></a>
1120 <span class="sourceLineNo">1112</span> if (tableName.equals(TableName.META_TABLE_NAME)) {<a name="line.1112"></a>
1121 <span class="sourceLineNo">1113</span> return new TableState(tableName, TableState.State.ENABLED);<a name="line.1113"></a>
1122 <span class="sourceLineNo">1114</span> }<a name="line.1114"></a>
1123 <span class="sourceLineNo">1115</span> Table metaHTable = getMetaHTable(conn);<a name="line.1115"></a>
1124 <span class="sourceLineNo">1116</span> Get get = new Get(tableName.getName()).addColumn(getTableFamily(), getTableStateColumn());<a name="line.1116"></a>
1125 <span class="sourceLineNo">1117</span> long time = EnvironmentEdgeManager.currentTime();<a name="line.1117"></a>
1126 <span class="sourceLineNo">1118</span> get.setTimeRange(0, time);<a name="line.1118"></a>
1127 <span class="sourceLineNo">1119</span> Result result =<a name="line.1119"></a>
1128 <span class="sourceLineNo">1120</span> metaHTable.get(get);<a name="line.1120"></a>
1129 <span class="sourceLineNo">1121</span> return getTableState(result);<a name="line.1121"></a>
1130 <span class="sourceLineNo">1122</span> }<a name="line.1122"></a>
1131 <span class="sourceLineNo">1123</span><a name="line.1123"></a>
1132 <span class="sourceLineNo">1124</span> /**<a name="line.1124"></a>
1133 <span class="sourceLineNo">1125</span> * Fetch table states from META table<a name="line.1125"></a>
1134 <span class="sourceLineNo">1126</span> * @param conn connection to use<a name="line.1126"></a>
1135 <span class="sourceLineNo">1127</span> * @return map {tableName -&amp;gt; state}<a name="line.1127"></a>
1136 <span class="sourceLineNo">1128</span> * @throws IOException<a name="line.1128"></a>
1137 <span class="sourceLineNo">1129</span> */<a name="line.1129"></a>
1138 <span class="sourceLineNo">1130</span> public static Map&lt;TableName, TableState&gt; getTableStates(Connection conn)<a name="line.1130"></a>
1139 <span class="sourceLineNo">1131</span> throws IOException {<a name="line.1131"></a>
1140 <span class="sourceLineNo">1132</span> final Map&lt;TableName, TableState&gt; states = new LinkedHashMap&lt;&gt;();<a name="line.1132"></a>
1141 <span class="sourceLineNo">1133</span> Visitor collector = new Visitor() {<a name="line.1133"></a>
1142 <span class="sourceLineNo">1134</span> @Override<a name="line.1134"></a>
1143 <span class="sourceLineNo">1135</span> public boolean visit(Result r) throws IOException {<a name="line.1135"></a>
1144 <span class="sourceLineNo">1136</span> TableState state = getTableState(r);<a name="line.1136"></a>
1145 <span class="sourceLineNo">1137</span> if (state != null)<a name="line.1137"></a>
1146 <span class="sourceLineNo">1138</span> states.put(state.getTableName(), state);<a name="line.1138"></a>
1147 <span class="sourceLineNo">1139</span> return true;<a name="line.1139"></a>
1148 <span class="sourceLineNo">1140</span> }<a name="line.1140"></a>
1149 <span class="sourceLineNo">1141</span> };<a name="line.1141"></a>
1150 <span class="sourceLineNo">1142</span> fullScanTables(conn, collector);<a name="line.1142"></a>
1151 <span class="sourceLineNo">1143</span> return states;<a name="line.1143"></a>
1152 <span class="sourceLineNo">1144</span> }<a name="line.1144"></a>
1153 <span class="sourceLineNo">1145</span><a name="line.1145"></a>
1154 <span class="sourceLineNo">1146</span> /**<a name="line.1146"></a>
1155 <span class="sourceLineNo">1147</span> * Updates state in META<a name="line.1147"></a>
1156 <span class="sourceLineNo">1148</span> * @param conn connection to use<a name="line.1148"></a>
1157 <span class="sourceLineNo">1149</span> * @param tableName table to look for<a name="line.1149"></a>
1158 <span class="sourceLineNo">1150</span> * @throws IOException<a name="line.1150"></a>
1159 <span class="sourceLineNo">1151</span> */<a name="line.1151"></a>
1160 <span class="sourceLineNo">1152</span> public static void updateTableState(Connection conn, TableName tableName,<a name="line.1152"></a>
1161 <span class="sourceLineNo">1153</span> TableState.State actual) throws IOException {<a name="line.1153"></a>
1162 <span class="sourceLineNo">1154</span> updateTableState(conn, new TableState(tableName, actual));<a name="line.1154"></a>
1163 <span class="sourceLineNo">1155</span> }<a name="line.1155"></a>
1164 <span class="sourceLineNo">1156</span><a name="line.1156"></a>
1165 <span class="sourceLineNo">1157</span> /**<a name="line.1157"></a>
1166 <span class="sourceLineNo">1158</span> * Decode table state from META Result.<a name="line.1158"></a>
1167 <span class="sourceLineNo">1159</span> * Should contain cell from HConstants.TABLE_FAMILY<a name="line.1159"></a>
1168 <span class="sourceLineNo">1160</span> * @param r result<a name="line.1160"></a>
1169 <span class="sourceLineNo">1161</span> * @return null if not found<a name="line.1161"></a>
1170 <span class="sourceLineNo">1162</span> * @throws IOException<a name="line.1162"></a>
1171 <span class="sourceLineNo">1163</span> */<a name="line.1163"></a>
1172 <span class="sourceLineNo">1164</span> @Nullable<a name="line.1164"></a>
1173 <span class="sourceLineNo">1165</span> public static TableState getTableState(Result r)<a name="line.1165"></a>
1174 <span class="sourceLineNo">1166</span> throws IOException {<a name="line.1166"></a>
1175 <span class="sourceLineNo">1167</span> Cell cell = r.getColumnLatestCell(getTableFamily(), getTableStateColumn());<a name="line.1167"></a>
1176 <span class="sourceLineNo">1168</span> if (cell == null) return null;<a name="line.1168"></a>
1177 <span class="sourceLineNo">1169</span> try {<a name="line.1169"></a>
1178 <span class="sourceLineNo">1170</span> return TableState.parseFrom(TableName.valueOf(r.getRow()),<a name="line.1170"></a>
1179 <span class="sourceLineNo">1171</span> Arrays.copyOfRange(cell.getValueArray(),<a name="line.1171"></a>
1180 <span class="sourceLineNo">1172</span> cell.getValueOffset(), cell.getValueOffset() + cell.getValueLength()));<a name="line.1172"></a>
1181 <span class="sourceLineNo">1173</span> } catch (DeserializationException e) {<a name="line.1173"></a>
1182 <span class="sourceLineNo">1174</span> throw new IOException(e);<a name="line.1174"></a>
1183 <span class="sourceLineNo">1175</span> }<a name="line.1175"></a>
1184 <span class="sourceLineNo">1176</span><a name="line.1176"></a>
1185 <span class="sourceLineNo">1177</span> }<a name="line.1177"></a>
1186 <span class="sourceLineNo">1178</span><a name="line.1178"></a>
1187 <span class="sourceLineNo">1179</span> /**<a name="line.1179"></a>
1188 <span class="sourceLineNo">1180</span> * Implementations 'visit' a catalog table row.<a name="line.1180"></a>
1189 <span class="sourceLineNo">1181</span> */<a name="line.1181"></a>
1190 <span class="sourceLineNo">1182</span> public interface Visitor {<a name="line.1182"></a>
1191 <span class="sourceLineNo">1183</span> /**<a name="line.1183"></a>
1192 <span class="sourceLineNo">1184</span> * Visit the catalog table row.<a name="line.1184"></a>
1193 <span class="sourceLineNo">1185</span> * @param r A row from catalog table<a name="line.1185"></a>
1194 <span class="sourceLineNo">1186</span> * @return True if we are to proceed scanning the table, else false if<a name="line.1186"></a>
1195 <span class="sourceLineNo">1187</span> * we are to stop now.<a name="line.1187"></a>
1196 <span class="sourceLineNo">1188</span> */<a name="line.1188"></a>
1197 <span class="sourceLineNo">1189</span> boolean visit(final Result r) throws IOException;<a name="line.1189"></a>
1198 <span class="sourceLineNo">1190</span> }<a name="line.1190"></a>
1199 <span class="sourceLineNo">1191</span><a name="line.1191"></a>
1200 <span class="sourceLineNo">1192</span> /**<a name="line.1192"></a>
1201 <span class="sourceLineNo">1193</span> * Implementations 'visit' a catalog table row but with close() at the end.<a name="line.1193"></a>
1202 <span class="sourceLineNo">1194</span> */<a name="line.1194"></a>
1203 <span class="sourceLineNo">1195</span> public interface CloseableVisitor extends Visitor, Closeable {<a name="line.1195"></a>
1204 <span class="sourceLineNo">1196</span> }<a name="line.1196"></a>
1205 <span class="sourceLineNo">1197</span><a name="line.1197"></a>
1206 <span class="sourceLineNo">1198</span> /**<a name="line.1198"></a>
1207 <span class="sourceLineNo">1199</span> * A {@link Visitor} that collects content out of passed {@link Result}.<a name="line.1199"></a>
1208 <span class="sourceLineNo">1200</span> */<a name="line.1200"></a>
1209 <span class="sourceLineNo">1201</span> static abstract class CollectingVisitor&lt;T&gt; implements Visitor {<a name="line.1201"></a>
1210 <span class="sourceLineNo">1202</span> final List&lt;T&gt; results = new ArrayList&lt;&gt;();<a name="line.1202"></a>
1211 <span class="sourceLineNo">1203</span> @Override<a name="line.1203"></a>
1212 <span class="sourceLineNo">1204</span> public boolean visit(Result r) throws IOException {<a name="line.1204"></a>
1213 <span class="sourceLineNo">1205</span> if (r == null || r.isEmpty()) return true;<a name="line.1205"></a>
1214 <span class="sourceLineNo">1206</span> add(r);<a name="line.1206"></a>
1215 <span class="sourceLineNo">1207</span> return true;<a name="line.1207"></a>
1216 <span class="sourceLineNo">1208</span> }<a name="line.1208"></a>
1217 <span class="sourceLineNo">1209</span><a name="line.1209"></a>
1218 <span class="sourceLineNo">1210</span> abstract void add(Result r);<a name="line.1210"></a>
1219 <span class="sourceLineNo">1211</span><a name="line.1211"></a>
1220 <span class="sourceLineNo">1212</span> /**<a name="line.1212"></a>
1221 <span class="sourceLineNo">1213</span> * @return Collected results; wait till visits complete to collect all<a name="line.1213"></a>
1222 <span class="sourceLineNo">1214</span> * possible results<a name="line.1214"></a>
1223 <span class="sourceLineNo">1215</span> */<a name="line.1215"></a>
1224 <span class="sourceLineNo">1216</span> List&lt;T&gt; getResults() {<a name="line.1216"></a>
1225 <span class="sourceLineNo">1217</span> return this.results;<a name="line.1217"></a>
1226 <span class="sourceLineNo">1218</span> }<a name="line.1218"></a>
1227 <span class="sourceLineNo">1219</span> }<a name="line.1219"></a>
1228 <span class="sourceLineNo">1220</span><a name="line.1220"></a>
1229 <span class="sourceLineNo">1221</span> /**<a name="line.1221"></a>
1230 <span class="sourceLineNo">1222</span> * Collects all returned.<a name="line.1222"></a>
1231 <span class="sourceLineNo">1223</span> */<a name="line.1223"></a>
1232 <span class="sourceLineNo">1224</span> static class CollectAllVisitor extends CollectingVisitor&lt;Result&gt; {<a name="line.1224"></a>
1233 <span class="sourceLineNo">1225</span> @Override<a name="line.1225"></a>
1234 <span class="sourceLineNo">1226</span> void add(Result r) {<a name="line.1226"></a>
1235 <span class="sourceLineNo">1227</span> this.results.add(r);<a name="line.1227"></a>
1236 <span class="sourceLineNo">1228</span> }<a name="line.1228"></a>
1237 <span class="sourceLineNo">1229</span> }<a name="line.1229"></a>
1238 <span class="sourceLineNo">1230</span><a name="line.1230"></a>
1239 <span class="sourceLineNo">1231</span> /**<a name="line.1231"></a>
1240 <span class="sourceLineNo">1232</span> * A Visitor that skips offline regions and split parents<a name="line.1232"></a>
1241 <span class="sourceLineNo">1233</span> */<a name="line.1233"></a>
1242 <span class="sourceLineNo">1234</span> public static abstract class DefaultVisitorBase implements Visitor {<a name="line.1234"></a>
1243 <span class="sourceLineNo">1235</span><a name="line.1235"></a>
1244 <span class="sourceLineNo">1236</span> public DefaultVisitorBase() {<a name="line.1236"></a>
1245 <span class="sourceLineNo">1237</span> super();<a name="line.1237"></a>
1246 <span class="sourceLineNo">1238</span> }<a name="line.1238"></a>
1247 <span class="sourceLineNo">1239</span><a name="line.1239"></a>
1248 <span class="sourceLineNo">1240</span> public abstract boolean visitInternal(Result rowResult) throws IOException;<a name="line.1240"></a>
1249 <span class="sourceLineNo">1241</span><a name="line.1241"></a>
1250 <span class="sourceLineNo">1242</span> @Override<a name="line.1242"></a>
1251 <span class="sourceLineNo">1243</span> public boolean visit(Result rowResult) throws IOException {<a name="line.1243"></a>
1252 <span class="sourceLineNo">1244</span> RegionInfo info = getRegionInfo(rowResult);<a name="line.1244"></a>
1253 <span class="sourceLineNo">1245</span> if (info == null) {<a name="line.1245"></a>
1254 <span class="sourceLineNo">1246</span> return true;<a name="line.1246"></a>
1255 <span class="sourceLineNo">1247</span> }<a name="line.1247"></a>
1256 <span class="sourceLineNo">1248</span><a name="line.1248"></a>
1257 <span class="sourceLineNo">1249</span> //skip over offline and split regions<a name="line.1249"></a>
1258 <span class="sourceLineNo">1250</span> if (!(info.isOffline() || info.isSplit())) {<a name="line.1250"></a>
1259 <span class="sourceLineNo">1251</span> return visitInternal(rowResult);<a name="line.1251"></a>
1260 <span class="sourceLineNo">1252</span> }<a name="line.1252"></a>
1261 <span class="sourceLineNo">1253</span> return true;<a name="line.1253"></a>
1262 <span class="sourceLineNo">1254</span> }<a name="line.1254"></a>
1263 <span class="sourceLineNo">1255</span> }<a name="line.1255"></a>
1264 <span class="sourceLineNo">1256</span><a name="line.1256"></a>
1265 <span class="sourceLineNo">1257</span> /**<a name="line.1257"></a>
1266 <span class="sourceLineNo">1258</span> * A Visitor for a table. Provides a consistent view of the table's<a name="line.1258"></a>
1267 <span class="sourceLineNo">1259</span> * hbase:meta entries during concurrent splits (see HBASE-5986 for details). This class<a name="line.1259"></a>
1268 <span class="sourceLineNo">1260</span> * does not guarantee ordered traversal of meta entries, and can block until the<a name="line.1260"></a>
1269 <span class="sourceLineNo">1261</span> * hbase:meta entries for daughters are available during splits.<a name="line.1261"></a>
1270 <span class="sourceLineNo">1262</span> */<a name="line.1262"></a>
1271 <span class="sourceLineNo">1263</span> public static abstract class TableVisitorBase extends DefaultVisitorBase {<a name="line.1263"></a>
1272 <span class="sourceLineNo">1264</span> private TableName tableName;<a name="line.1264"></a>
1273 <span class="sourceLineNo">1265</span><a name="line.1265"></a>
1274 <span class="sourceLineNo">1266</span> public TableVisitorBase(TableName tableName) {<a name="line.1266"></a>
1275 <span class="sourceLineNo">1267</span> super();<a name="line.1267"></a>
1276 <span class="sourceLineNo">1268</span> this.tableName = tableName;<a name="line.1268"></a>
1277 <span class="sourceLineNo">1269</span> }<a name="line.1269"></a>
1278 <span class="sourceLineNo">1270</span><a name="line.1270"></a>
1279 <span class="sourceLineNo">1271</span> @Override<a name="line.1271"></a>
1280 <span class="sourceLineNo">1272</span> public final boolean visit(Result rowResult) throws IOException {<a name="line.1272"></a>
1281 <span class="sourceLineNo">1273</span> RegionInfo info = getRegionInfo(rowResult);<a name="line.1273"></a>
1282 <span class="sourceLineNo">1274</span> if (info == null) {<a name="line.1274"></a>
1283 <span class="sourceLineNo">1275</span> return true;<a name="line.1275"></a>
1284 <span class="sourceLineNo">1276</span> }<a name="line.1276"></a>
1285 <span class="sourceLineNo">1277</span> if (!(info.getTable().equals(tableName))) {<a name="line.1277"></a>
1286 <span class="sourceLineNo">1278</span> return false;<a name="line.1278"></a>
1287 <span class="sourceLineNo">1279</span> }<a name="line.1279"></a>
1288 <span class="sourceLineNo">1280</span> return super.visit(rowResult);<a name="line.1280"></a>
1289 <span class="sourceLineNo">1281</span> }<a name="line.1281"></a>
1290 <span class="sourceLineNo">1282</span> }<a name="line.1282"></a>
1291 <span class="sourceLineNo">1283</span><a name="line.1283"></a>
1292 <span class="sourceLineNo">1284</span> /**<a name="line.1284"></a>
1293 <span class="sourceLineNo">1285</span> * Count regions in &lt;code&gt;hbase:meta&lt;/code&gt; for passed table.<a name="line.1285"></a>
1294 <span class="sourceLineNo">1286</span> * @param c Configuration object<a name="line.1286"></a>
1295 <span class="sourceLineNo">1287</span> * @param tableName table name to count regions for<a name="line.1287"></a>
1296 <span class="sourceLineNo">1288</span> * @return Count or regions in table &lt;code&gt;tableName&lt;/code&gt;<a name="line.1288"></a>
1297 <span class="sourceLineNo">1289</span> * @throws IOException<a name="line.1289"></a>
1298 <span class="sourceLineNo">1290</span> */<a name="line.1290"></a>
1299 <span class="sourceLineNo">1291</span> public static int getRegionCount(final Configuration c, final TableName tableName)<a name="line.1291"></a>
1300 <span class="sourceLineNo">1292</span> throws IOException {<a name="line.1292"></a>
1301 <span class="sourceLineNo">1293</span> try (Connection connection = ConnectionFactory.createConnection(c)) {<a name="line.1293"></a>
1302 <span class="sourceLineNo">1294</span> return getRegionCount(connection, tableName);<a name="line.1294"></a>
1303 <span class="sourceLineNo">1295</span> }<a name="line.1295"></a>
1304 <span class="sourceLineNo">1296</span> }<a name="line.1296"></a>
1305 <span class="sourceLineNo">1297</span><a name="line.1297"></a>
1306 <span class="sourceLineNo">1298</span> /**<a name="line.1298"></a>
1307 <span class="sourceLineNo">1299</span> * Count regions in &lt;code&gt;hbase:meta&lt;/code&gt; for passed table.<a name="line.1299"></a>
1308 <span class="sourceLineNo">1300</span> * @param connection Connection object<a name="line.1300"></a>
1309 <span class="sourceLineNo">1301</span> * @param tableName table name to count regions for<a name="line.1301"></a>
1310 <span class="sourceLineNo">1302</span> * @return Count or regions in table &lt;code&gt;tableName&lt;/code&gt;<a name="line.1302"></a>
1311 <span class="sourceLineNo">1303</span> * @throws IOException<a name="line.1303"></a>
1312 <span class="sourceLineNo">1304</span> */<a name="line.1304"></a>
1313 <span class="sourceLineNo">1305</span> public static int getRegionCount(final Connection connection, final TableName tableName)<a name="line.1305"></a>
1314 <span class="sourceLineNo">1306</span> throws IOException {<a name="line.1306"></a>
1315 <span class="sourceLineNo">1307</span> try (RegionLocator locator = connection.getRegionLocator(tableName)) {<a name="line.1307"></a>
1316 <span class="sourceLineNo">1308</span> List&lt;HRegionLocation&gt; locations = locator.getAllRegionLocations();<a name="line.1308"></a>
1317 <span class="sourceLineNo">1309</span> return locations == null? 0: locations.size();<a name="line.1309"></a>
1318 <span class="sourceLineNo">1310</span> }<a name="line.1310"></a>
1319 <span class="sourceLineNo">1311</span> }<a name="line.1311"></a>
1320 <span class="sourceLineNo">1312</span><a name="line.1312"></a>
1321 <span class="sourceLineNo">1313</span> ////////////////////////<a name="line.1313"></a>
1322 <span class="sourceLineNo">1314</span> // Editing operations //<a name="line.1314"></a>
1323 <span class="sourceLineNo">1315</span> ////////////////////////<a name="line.1315"></a>
1324 <span class="sourceLineNo">1316</span><a name="line.1316"></a>
1325 <span class="sourceLineNo">1317</span> /**<a name="line.1317"></a>
1326 <span class="sourceLineNo">1318</span> * Generates and returns a Put containing the region into for the catalog table<a name="line.1318"></a>
1327 <span class="sourceLineNo">1319</span> */<a name="line.1319"></a>
1328 <span class="sourceLineNo">1320</span> public static Put makePutFromRegionInfo(RegionInfo regionInfo) throws IOException {<a name="line.1320"></a>
1329 <span class="sourceLineNo">1321</span> return makePutFromRegionInfo(regionInfo, EnvironmentEdgeManager.currentTime());<a name="line.1321"></a>
1330 <span class="sourceLineNo">1322</span> }<a name="line.1322"></a>
1331 <span class="sourceLineNo">1323</span><a name="line.1323"></a>
1332 <span class="sourceLineNo">1324</span> /**<a name="line.1324"></a>
1333 <span class="sourceLineNo">1325</span> * Generates and returns a Put containing the region into for the catalog table<a name="line.1325"></a>
1334 <span class="sourceLineNo">1326</span> */<a name="line.1326"></a>
1335 <span class="sourceLineNo">1327</span> public static Put makePutFromRegionInfo(RegionInfo regionInfo, long ts) throws IOException {<a name="line.1327"></a>
1336 <span class="sourceLineNo">1328</span> Put put = new Put(regionInfo.getRegionName(), ts);<a name="line.1328"></a>
1337 <span class="sourceLineNo">1329</span> addRegionInfo(put, regionInfo);<a name="line.1329"></a>
1338 <span class="sourceLineNo">1330</span> return put;<a name="line.1330"></a>
1339 <span class="sourceLineNo">1331</span> }<a name="line.1331"></a>
1340 <span class="sourceLineNo">1332</span><a name="line.1332"></a>
1341 <span class="sourceLineNo">1333</span> /**<a name="line.1333"></a>
1342 <span class="sourceLineNo">1334</span> * Generates and returns a Delete containing the region info for the catalog<a name="line.1334"></a>
1343 <span class="sourceLineNo">1335</span> * table<a name="line.1335"></a>
1344 <span class="sourceLineNo">1336</span> */<a name="line.1336"></a>
1345 <span class="sourceLineNo">1337</span> public static Delete makeDeleteFromRegionInfo(RegionInfo regionInfo) {<a name="line.1337"></a>
1346 <span class="sourceLineNo">1338</span> long now = EnvironmentEdgeManager.currentTime();<a name="line.1338"></a>
1347 <span class="sourceLineNo">1339</span> return makeDeleteFromRegionInfo(regionInfo, now);<a name="line.1339"></a>
1348 <span class="sourceLineNo">1340</span> }<a name="line.1340"></a>
1349 <span class="sourceLineNo">1341</span><a name="line.1341"></a>
1350 <span class="sourceLineNo">1342</span> /**<a name="line.1342"></a>
1351 <span class="sourceLineNo">1343</span> * Generates and returns a Delete containing the region info for the catalog<a name="line.1343"></a>
1352 <span class="sourceLineNo">1344</span> * table<a name="line.1344"></a>
1353 <span class="sourceLineNo">1345</span> */<a name="line.1345"></a>
1354 <span class="sourceLineNo">1346</span> public static Delete makeDeleteFromRegionInfo(RegionInfo regionInfo, long ts) {<a name="line.1346"></a>
1355 <span class="sourceLineNo">1347</span> if (regionInfo == null) {<a name="line.1347"></a>
1356 <span class="sourceLineNo">1348</span> throw new IllegalArgumentException("Can't make a delete for null region");<a name="line.1348"></a>
1357 <span class="sourceLineNo">1349</span> }<a name="line.1349"></a>
1358 <span class="sourceLineNo">1350</span> Delete delete = new Delete(regionInfo.getRegionName());<a name="line.1350"></a>
1359 <span class="sourceLineNo">1351</span> delete.addFamily(getCatalogFamily(), ts);<a name="line.1351"></a>
1360 <span class="sourceLineNo">1352</span> return delete;<a name="line.1352"></a>
1361 <span class="sourceLineNo">1353</span> }<a name="line.1353"></a>
1362 <span class="sourceLineNo">1354</span><a name="line.1354"></a>
1363 <span class="sourceLineNo">1355</span> public static Put makeBarrierPut(byte[] encodedRegionName, long seq, byte[] tableName)<a name="line.1355"></a>
1364 <span class="sourceLineNo">1356</span> throws IOException {<a name="line.1356"></a>
1365 <span class="sourceLineNo">1357</span> byte[] seqBytes = Bytes.toBytes(seq);<a name="line.1357"></a>
1366 <span class="sourceLineNo">1358</span> Put put = new Put(encodedRegionName);<a name="line.1358"></a>
1367 <span class="sourceLineNo">1359</span> put.add(CellBuilderFactory.create(CellBuilderType.SHALLOW_COPY)<a name="line.1359"></a>
1368 <span class="sourceLineNo">1360</span> .setRow(put.getRow())<a name="line.1360"></a>
1369 <span class="sourceLineNo">1361</span> .setFamily(HConstants.REPLICATION_BARRIER_FAMILY)<a name="line.1361"></a>
1370 <span class="sourceLineNo">1362</span> .setQualifier(seqBytes)<a name="line.1362"></a>
1371 <span class="sourceLineNo">1363</span> .setTimestamp(put.getTimeStamp())<a name="line.1363"></a>
1372 <span class="sourceLineNo">1364</span> .setType(Type.Put)<a name="line.1364"></a>
1373 <span class="sourceLineNo">1365</span> .setValue(seqBytes)<a name="line.1365"></a>
1374 <span class="sourceLineNo">1366</span> .build())<a name="line.1366"></a>
1375 <span class="sourceLineNo">1367</span> .add(CellBuilderFactory.create(CellBuilderType.SHALLOW_COPY)<a name="line.1367"></a>
1376 <span class="sourceLineNo">1368</span> .setRow(put.getRow())<a name="line.1368"></a>
1377 <span class="sourceLineNo">1369</span> .setFamily(HConstants.REPLICATION_META_FAMILY)<a name="line.1369"></a>
1378 <span class="sourceLineNo">1370</span> .setQualifier(tableNameCq)<a name="line.1370"></a>
1379 <span class="sourceLineNo">1371</span> .setTimestamp(put.getTimeStamp())<a name="line.1371"></a>
1380 <span class="sourceLineNo">1372</span> .setType(Cell.Type.Put)<a name="line.1372"></a>
1381 <span class="sourceLineNo">1373</span> .setValue(tableName)<a name="line.1373"></a>
1382 <span class="sourceLineNo">1374</span> .build());<a name="line.1374"></a>
1383 <span class="sourceLineNo">1375</span> return put;<a name="line.1375"></a>
1384 <span class="sourceLineNo">1376</span> }<a name="line.1376"></a>
1385 <span class="sourceLineNo">1377</span><a name="line.1377"></a>
1386 <span class="sourceLineNo">1378</span><a name="line.1378"></a>
1387 <span class="sourceLineNo">1379</span> public static Put makeDaughterPut(byte[] encodedRegionName, byte[] value) throws IOException {<a name="line.1379"></a>
1388 <span class="sourceLineNo">1380</span> Put put = new Put(encodedRegionName);<a name="line.1380"></a>
1389 <span class="sourceLineNo">1381</span> put.add(CellBuilderFactory.create(CellBuilderType.SHALLOW_COPY)<a name="line.1381"></a>
1390 <span class="sourceLineNo">1382</span> .setRow(put.getRow())<a name="line.1382"></a>
1391 <span class="sourceLineNo">1383</span> .setFamily(HConstants.REPLICATION_META_FAMILY)<a name="line.1383"></a>
1392 <span class="sourceLineNo">1384</span> .setQualifier(daughterNameCq)<a name="line.1384"></a>
1393 <span class="sourceLineNo">1385</span> .setTimestamp(put.getTimeStamp())<a name="line.1385"></a>
1394 <span class="sourceLineNo">1386</span> .setType(Type.Put)<a name="line.1386"></a>
1395 <span class="sourceLineNo">1387</span> .setValue(value)<a name="line.1387"></a>
1396 <span class="sourceLineNo">1388</span> .build());<a name="line.1388"></a>
1397 <span class="sourceLineNo">1389</span> return put;<a name="line.1389"></a>
1398 <span class="sourceLineNo">1390</span> }<a name="line.1390"></a>
1399 <span class="sourceLineNo">1391</span><a name="line.1391"></a>
1400 <span class="sourceLineNo">1392</span> public static Put makeParentPut(byte[] encodedRegionName, byte[] value) throws IOException {<a name="line.1392"></a>
1401 <span class="sourceLineNo">1393</span> Put put = new Put(encodedRegionName);<a name="line.1393"></a>
1402 <span class="sourceLineNo">1394</span> put.add(CellBuilderFactory.create(CellBuilderType.SHALLOW_COPY)<a name="line.1394"></a>
1403 <span class="sourceLineNo">1395</span> .setRow(put.getRow())<a name="line.1395"></a>
1404 <span class="sourceLineNo">1396</span> .setFamily(HConstants.REPLICATION_META_FAMILY)<a name="line.1396"></a>
1405 <span class="sourceLineNo">1397</span> .setQualifier(parentNameCq)<a name="line.1397"></a>
1406 <span class="sourceLineNo">1398</span> .setTimestamp(put.getTimeStamp())<a name="line.1398"></a>
1407 <span class="sourceLineNo">1399</span> .setType(Type.Put)<a name="line.1399"></a>
1408 <span class="sourceLineNo">1400</span> .setValue(value)<a name="line.1400"></a>
1409 <span class="sourceLineNo">1401</span> .build());<a name="line.1401"></a>
1410 <span class="sourceLineNo">1402</span> return put;<a name="line.1402"></a>
1411 <span class="sourceLineNo">1403</span> }<a name="line.1403"></a>
1412 <span class="sourceLineNo">1404</span><a name="line.1404"></a>
1413 <span class="sourceLineNo">1405</span> /**<a name="line.1405"></a>
1414 <span class="sourceLineNo">1406</span> * Adds split daughters to the Put<a name="line.1406"></a>
1415 <span class="sourceLineNo">1407</span> */<a name="line.1407"></a>
1416 <span class="sourceLineNo">1408</span> public static Put addDaughtersToPut(Put put, RegionInfo splitA, RegionInfo splitB)<a name="line.1408"></a>
1417 <span class="sourceLineNo">1409</span> throws IOException {<a name="line.1409"></a>
1418 <span class="sourceLineNo">1410</span> if (splitA != null) {<a name="line.1410"></a>
1419 <span class="sourceLineNo">1411</span> put.add(CellBuilderFactory.create(CellBuilderType.SHALLOW_COPY)<a name="line.1411"></a>
1420 <span class="sourceLineNo">1412</span> .setRow(put.getRow())<a name="line.1412"></a>
1421 <span class="sourceLineNo">1413</span> .setFamily(HConstants.CATALOG_FAMILY)<a name="line.1413"></a>
1422 <span class="sourceLineNo">1414</span> .setQualifier(HConstants.SPLITA_QUALIFIER)<a name="line.1414"></a>
1423 <span class="sourceLineNo">1415</span> .setTimestamp(put.getTimeStamp())<a name="line.1415"></a>
1424 <span class="sourceLineNo">1416</span> .setType(Type.Put)<a name="line.1416"></a>
1425 <span class="sourceLineNo">1417</span> .setValue(RegionInfo.toByteArray(splitA))<a name="line.1417"></a>
1426 <span class="sourceLineNo">1418</span> .build());<a name="line.1418"></a>
1427 <span class="sourceLineNo">1419</span> }<a name="line.1419"></a>
1428 <span class="sourceLineNo">1420</span> if (splitB != null) {<a name="line.1420"></a>
1429 <span class="sourceLineNo">1421</span> put.add(CellBuilderFactory.create(CellBuilderType.SHALLOW_COPY)<a name="line.1421"></a>
1430 <span class="sourceLineNo">1422</span> .setRow(put.getRow())<a name="line.1422"></a>
1431 <span class="sourceLineNo">1423</span> .setFamily(HConstants.CATALOG_FAMILY)<a name="line.1423"></a>
1432 <span class="sourceLineNo">1424</span> .setQualifier(HConstants.SPLITB_QUALIFIER)<a name="line.1424"></a>
1433 <span class="sourceLineNo">1425</span> .setTimestamp(put.getTimeStamp())<a name="line.1425"></a>
1434 <span class="sourceLineNo">1426</span> .setType(Type.Put)<a name="line.1426"></a>
1435 <span class="sourceLineNo">1427</span> .setValue(RegionInfo.toByteArray(splitB))<a name="line.1427"></a>
1436 <span class="sourceLineNo">1428</span> .build());<a name="line.1428"></a>
1437 <span class="sourceLineNo">1429</span> }<a name="line.1429"></a>
1438 <span class="sourceLineNo">1430</span> return put;<a name="line.1430"></a>
1439 <span class="sourceLineNo">1431</span> }<a name="line.1431"></a>
1440 <span class="sourceLineNo">1432</span><a name="line.1432"></a>
1441 <span class="sourceLineNo">1433</span> /**<a name="line.1433"></a>
1442 <span class="sourceLineNo">1434</span> * Put the passed &lt;code&gt;puts&lt;/code&gt; to the &lt;code&gt;hbase:meta&lt;/code&gt; table.<a name="line.1434"></a>
1443 <span class="sourceLineNo">1435</span> * Non-atomic for multi puts.<a name="line.1435"></a>
1444 <span class="sourceLineNo">1436</span> * @param connection connection we're using<a name="line.1436"></a>
1445 <span class="sourceLineNo">1437</span> * @param puts Put to add to hbase:meta<a name="line.1437"></a>
1446 <span class="sourceLineNo">1438</span> * @throws IOException<a name="line.1438"></a>
1447 <span class="sourceLineNo">1439</span> */<a name="line.1439"></a>
1448 <span class="sourceLineNo">1440</span> public static void putToMetaTable(final Connection connection, final Put... puts)<a name="line.1440"></a>
1449 <span class="sourceLineNo">1441</span> throws IOException {<a name="line.1441"></a>
1450 <span class="sourceLineNo">1442</span> put(getMetaHTable(connection), Arrays.asList(puts));<a name="line.1442"></a>
1451 <span class="sourceLineNo">1443</span> }<a name="line.1443"></a>
1452 <span class="sourceLineNo">1444</span><a name="line.1444"></a>
1453 <span class="sourceLineNo">1445</span> /**<a name="line.1445"></a>
1454 <span class="sourceLineNo">1446</span> * @param t Table to use (will be closed when done).<a name="line.1446"></a>
1455 <span class="sourceLineNo">1447</span> * @param puts puts to make<a name="line.1447"></a>
1456 <span class="sourceLineNo">1448</span> * @throws IOException<a name="line.1448"></a>
1457 <span class="sourceLineNo">1449</span> */<a name="line.1449"></a>
1458 <span class="sourceLineNo">1450</span> private static void put(final Table t, final List&lt;Put&gt; puts) throws IOException {<a name="line.1450"></a>
1459 <span class="sourceLineNo">1451</span> try {<a name="line.1451"></a>
1460 <span class="sourceLineNo">1452</span> debugLogMutations(puts);<a name="line.1452"></a>
1461 <span class="sourceLineNo">1453</span> t.put(puts);<a name="line.1453"></a>
1462 <span class="sourceLineNo">1454</span> } finally {<a name="line.1454"></a>
1463 <span class="sourceLineNo">1455</span> t.close();<a name="line.1455"></a>
1464 <span class="sourceLineNo">1456</span> }<a name="line.1456"></a>
1465 <span class="sourceLineNo">1457</span> }<a name="line.1457"></a>
1466 <span class="sourceLineNo">1458</span><a name="line.1458"></a>
1467 <span class="sourceLineNo">1459</span> /**<a name="line.1459"></a>
1468 <span class="sourceLineNo">1460</span> * Put the passed &lt;code&gt;ps&lt;/code&gt; to the &lt;code&gt;hbase:meta&lt;/code&gt; table.<a name="line.1460"></a>
1469 <span class="sourceLineNo">1461</span> * @param connection connection we're using<a name="line.1461"></a>
1470 <span class="sourceLineNo">1462</span> * @param ps Put to add to hbase:meta<a name="line.1462"></a>
1471 <span class="sourceLineNo">1463</span> * @throws IOException<a name="line.1463"></a>
1472 <span class="sourceLineNo">1464</span> */<a name="line.1464"></a>
1473 <span class="sourceLineNo">1465</span> public static void putsToMetaTable(final Connection connection, final List&lt;Put&gt; ps)<a name="line.1465"></a>
1474 <span class="sourceLineNo">1466</span> throws IOException {<a name="line.1466"></a>
1475 <span class="sourceLineNo">1467</span> Table t = getMetaHTable(connection);<a name="line.1467"></a>
1476 <span class="sourceLineNo">1468</span> try {<a name="line.1468"></a>
1477 <span class="sourceLineNo">1469</span> debugLogMutations(ps);<a name="line.1469"></a>
1478 <span class="sourceLineNo">1470</span> t.put(ps);<a name="line.1470"></a>
1479 <span class="sourceLineNo">1471</span> } finally {<a name="line.1471"></a>
1480 <span class="sourceLineNo">1472</span> t.close();<a name="line.1472"></a>
1481 <span class="sourceLineNo">1473</span> }<a name="line.1473"></a>
1482 <span class="sourceLineNo">1474</span> }<a name="line.1474"></a>
1483 <span class="sourceLineNo">1475</span><a name="line.1475"></a>
1484 <span class="sourceLineNo">1476</span> /**<a name="line.1476"></a>
1485 <span class="sourceLineNo">1477</span> * Delete the passed &lt;code&gt;d&lt;/code&gt; from the &lt;code&gt;hbase:meta&lt;/code&gt; table.<a name="line.1477"></a>
1486 <span class="sourceLineNo">1478</span> * @param connection connection we're using<a name="line.1478"></a>
1487 <span class="sourceLineNo">1479</span> * @param d Delete to add to hbase:meta<a name="line.1479"></a>
1488 <span class="sourceLineNo">1480</span> * @throws IOException<a name="line.1480"></a>
1489 <span class="sourceLineNo">1481</span> */<a name="line.1481"></a>
1490 <span class="sourceLineNo">1482</span> static void deleteFromMetaTable(final Connection connection, final Delete d)<a name="line.1482"></a>
1491 <span class="sourceLineNo">1483</span> throws IOException {<a name="line.1483"></a>
1492 <span class="sourceLineNo">1484</span> List&lt;Delete&gt; dels = new ArrayList&lt;&gt;(1);<a name="line.1484"></a>
1493 <span class="sourceLineNo">1485</span> dels.add(d);<a name="line.1485"></a>
1494 <span class="sourceLineNo">1486</span> deleteFromMetaTable(connection, dels);<a name="line.1486"></a>
1495 <span class="sourceLineNo">1487</span> }<a name="line.1487"></a>
1496 <span class="sourceLineNo">1488</span><a name="line.1488"></a>
1497 <span class="sourceLineNo">1489</span> /**<a name="line.1489"></a>
1498 <span class="sourceLineNo">1490</span> * Delete the passed &lt;code&gt;deletes&lt;/code&gt; from the &lt;code&gt;hbase:meta&lt;/code&gt; table.<a name="line.1490"></a>
1499 <span class="sourceLineNo">1491</span> * @param connection connection we're using<a name="line.1491"></a>
1500 <span class="sourceLineNo">1492</span> * @param deletes Deletes to add to hbase:meta This list should support #remove.<a name="line.1492"></a>
1501 <span class="sourceLineNo">1493</span> * @throws IOException<a name="line.1493"></a>
1502 <span class="sourceLineNo">1494</span> */<a name="line.1494"></a>
1503 <span class="sourceLineNo">1495</span> public static void deleteFromMetaTable(final Connection connection, final List&lt;Delete&gt; deletes)<a name="line.1495"></a>
1504 <span class="sourceLineNo">1496</span> throws IOException {<a name="line.1496"></a>
1505 <span class="sourceLineNo">1497</span> Table t = getMetaHTable(connection);<a name="line.1497"></a>
1506 <span class="sourceLineNo">1498</span> try {<a name="line.1498"></a>
1507 <span class="sourceLineNo">1499</span> debugLogMutations(deletes);<a name="line.1499"></a>
1508 <span class="sourceLineNo">1500</span> t.delete(deletes);<a name="line.1500"></a>
1509 <span class="sourceLineNo">1501</span> } finally {<a name="line.1501"></a>
1510 <span class="sourceLineNo">1502</span> t.close();<a name="line.1502"></a>
1511 <span class="sourceLineNo">1503</span> }<a name="line.1503"></a>
1512 <span class="sourceLineNo">1504</span> }<a name="line.1504"></a>
1513 <span class="sourceLineNo">1505</span><a name="line.1505"></a>
1514 <span class="sourceLineNo">1506</span> /**<a name="line.1506"></a>
1515 <span class="sourceLineNo">1507</span> * Deletes some replica columns corresponding to replicas for the passed rows<a name="line.1507"></a>
1516 <span class="sourceLineNo">1508</span> * @param metaRows rows in hbase:meta<a name="line.1508"></a>
1517 <span class="sourceLineNo">1509</span> * @param replicaIndexToDeleteFrom the replica ID we would start deleting from<a name="line.1509"></a>
1518 <span class="sourceLineNo">1510</span> * @param numReplicasToRemove how many replicas to remove<a name="line.1510"></a>
1519 <span class="sourceLineNo">1511</span> * @param connection connection we're using to access meta table<a name="line.1511"></a>
1520 <span class="sourceLineNo">1512</span> * @throws IOException<a name="line.1512"></a>
1521 <span class="sourceLineNo">1513</span> */<a name="line.1513"></a>
1522 <span class="sourceLineNo">1514</span> public static void removeRegionReplicasFromMeta(Set&lt;byte[]&gt; metaRows,<a name="line.1514"></a>
1523 <span class="sourceLineNo">1515</span> int replicaIndexToDeleteFrom, int numReplicasToRemove, Connection connection)<a name="line.1515"></a>
1524 <span class="sourceLineNo">1516</span> throws IOException {<a name="line.1516"></a>
1525 <span class="sourceLineNo">1517</span> int absoluteIndex = replicaIndexToDeleteFrom + numReplicasToRemove;<a name="line.1517"></a>
1526 <span class="sourceLineNo">1518</span> for (byte[] row : metaRows) {<a name="line.1518"></a>
1527 <span class="sourceLineNo">1519</span> long now = EnvironmentEdgeManager.currentTime();<a name="line.1519"></a>
1528 <span class="sourceLineNo">1520</span> Delete deleteReplicaLocations = new Delete(row);<a name="line.1520"></a>
1529 <span class="sourceLineNo">1521</span> for (int i = replicaIndexToDeleteFrom; i &lt; absoluteIndex; i++) {<a name="line.1521"></a>
1530 <span class="sourceLineNo">1522</span> deleteReplicaLocations.addColumns(getCatalogFamily(),<a name="line.1522"></a>
1531 <span class="sourceLineNo">1523</span> getServerColumn(i), now);<a name="line.1523"></a>
1532 <span class="sourceLineNo">1524</span> deleteReplicaLocations.addColumns(getCatalogFamily(),<a name="line.1524"></a>
1533 <span class="sourceLineNo">1525</span> getSeqNumColumn(i), now);<a name="line.1525"></a>
1534 <span class="sourceLineNo">1526</span> deleteReplicaLocations.addColumns(getCatalogFamily(),<a name="line.1526"></a>
1535 <span class="sourceLineNo">1527</span> getStartCodeColumn(i), now);<a name="line.1527"></a>
1536 <span class="sourceLineNo">1528</span> }<a name="line.1528"></a>
1537 <span class="sourceLineNo">1529</span> deleteFromMetaTable(connection, deleteReplicaLocations);<a name="line.1529"></a>
1538 <span class="sourceLineNo">1530</span> }<a name="line.1530"></a>
1539 <span class="sourceLineNo">1531</span> }<a name="line.1531"></a>
1540 <span class="sourceLineNo">1532</span><a name="line.1532"></a>
1541 <span class="sourceLineNo">1533</span> /**<a name="line.1533"></a>
1542 <span class="sourceLineNo">1534</span> * Execute the passed &lt;code&gt;mutations&lt;/code&gt; against &lt;code&gt;hbase:meta&lt;/code&gt; table.<a name="line.1534"></a>
1543 <span class="sourceLineNo">1535</span> * @param connection connection we're using<a name="line.1535"></a>
1544 <span class="sourceLineNo">1536</span> * @param mutations Puts and Deletes to execute on hbase:meta<a name="line.1536"></a>
1545 <span class="sourceLineNo">1537</span> * @throws IOException<a name="line.1537"></a>
1546 <span class="sourceLineNo">1538</span> */<a name="line.1538"></a>
1547 <span class="sourceLineNo">1539</span> public static void mutateMetaTable(final Connection connection,<a name="line.1539"></a>
1548 <span class="sourceLineNo">1540</span> final List&lt;Mutation&gt; mutations)<a name="line.1540"></a>
1549 <span class="sourceLineNo">1541</span> throws IOException {<a name="line.1541"></a>
1550 <span class="sourceLineNo">1542</span> Table t = getMetaHTable(connection);<a name="line.1542"></a>
1551 <span class="sourceLineNo">1543</span> try {<a name="line.1543"></a>
1552 <span class="sourceLineNo">1544</span> debugLogMutations(mutations);<a name="line.1544"></a>
1553 <span class="sourceLineNo">1545</span> t.batch(mutations, null);<a name="line.1545"></a>
1554 <span class="sourceLineNo">1546</span> } catch (InterruptedException e) {<a name="line.1546"></a>
1555 <span class="sourceLineNo">1547</span> InterruptedIOException ie = new InterruptedIOException(e.getMessage());<a name="line.1547"></a>
1556 <span class="sourceLineNo">1548</span> ie.initCause(e);<a name="line.1548"></a>
1557 <span class="sourceLineNo">1549</span> throw ie;<a name="line.1549"></a>
1558 <span class="sourceLineNo">1550</span> } finally {<a name="line.1550"></a>
1559 <span class="sourceLineNo">1551</span> t.close();<a name="line.1551"></a>
1560 <span class="sourceLineNo">1552</span> }<a name="line.1552"></a>
1561 <span class="sourceLineNo">1553</span> }<a name="line.1553"></a>
1562 <span class="sourceLineNo">1554</span><a name="line.1554"></a>
1563 <span class="sourceLineNo">1555</span> static void addRegionStateToPut(Put put, RegionState.State state) throws IOException {<a name="line.1555"></a>
1564 <span class="sourceLineNo">1556</span> put.add(CellBuilderFactory.create(CellBuilderType.SHALLOW_COPY)<a name="line.1556"></a>
1565 <span class="sourceLineNo">1557</span> .setRow(put.getRow())<a name="line.1557"></a>
1566 <span class="sourceLineNo">1558</span> .setFamily(HConstants.CATALOG_FAMILY)<a name="line.1558"></a>
1567 <span class="sourceLineNo">1559</span> .setQualifier(getRegionStateColumn())<a name="line.1559"></a>
1568 <span class="sourceLineNo">1560</span> .setTimestamp(put.getTimeStamp())<a name="line.1560"></a>
1569 <span class="sourceLineNo">1561</span> .setType(Cell.Type.Put)<a name="line.1561"></a>
1570 <span class="sourceLineNo">1562</span> .setValue(Bytes.toBytes(state.name()))<a name="line.1562"></a>
1571 <span class="sourceLineNo">1563</span> .build());<a name="line.1563"></a>
1572 <span class="sourceLineNo">1564</span> }<a name="line.1564"></a>
1573 <span class="sourceLineNo">1565</span><a name="line.1565"></a>
1574 <span class="sourceLineNo">1566</span> /**<a name="line.1566"></a>
1575 <span class="sourceLineNo">1567</span> * Adds daughter region infos to hbase:meta row for the specified region. Note that this does not<a name="line.1567"></a>
1576 <span class="sourceLineNo">1568</span> * add its daughter's as different rows, but adds information about the daughters in the same row<a name="line.1568"></a>
1577 <span class="sourceLineNo">1569</span> * as the parent. Use<a name="line.1569"></a>
1578 <span class="sourceLineNo">1570</span> * {@link #splitRegion(Connection, RegionInfo, RegionInfo, RegionInfo, ServerName,int,boolean)}<a name="line.1570"></a>
1579 <span class="sourceLineNo">1571</span> * if you want to do that.<a name="line.1571"></a>
1580 <span class="sourceLineNo">1572</span> * @param connection connection we're using<a name="line.1572"></a>
1581 <span class="sourceLineNo">1573</span> * @param regionInfo RegionInfo of parent region<a name="line.1573"></a>
1582 <span class="sourceLineNo">1574</span> * @param splitA first split daughter of the parent regionInfo<a name="line.1574"></a>
1583 <span class="sourceLineNo">1575</span> * @param splitB second split daughter of the parent regionInfo<a name="line.1575"></a>
1584 <span class="sourceLineNo">1576</span> * @throws IOException if problem connecting or updating meta<a name="line.1576"></a>
1585 <span class="sourceLineNo">1577</span> */<a name="line.1577"></a>
1586 <span class="sourceLineNo">1578</span> public static void addSpiltsToParent(Connection connection, RegionInfo regionInfo,<a name="line.1578"></a>
1587 <span class="sourceLineNo">1579</span> RegionInfo splitA, RegionInfo splitB) throws IOException {<a name="line.1579"></a>
1588 <span class="sourceLineNo">1580</span> Table meta = getMetaHTable(connection);<a name="line.1580"></a>
1589 <span class="sourceLineNo">1581</span> try {<a name="line.1581"></a>
1590 <span class="sourceLineNo">1582</span> Put put = makePutFromRegionInfo(regionInfo);<a name="line.1582"></a>
1591 <span class="sourceLineNo">1583</span> addDaughtersToPut(put, splitA, splitB);<a name="line.1583"></a>
1592 <span class="sourceLineNo">1584</span> meta.put(put);<a name="line.1584"></a>
1593 <span class="sourceLineNo">1585</span> debugLogMutation(put);<a name="line.1585"></a>
1594 <span class="sourceLineNo">1586</span> LOG.debug("Added region {}", regionInfo.getRegionNameAsString());<a name="line.1586"></a>
1595 <span class="sourceLineNo">1587</span> } finally {<a name="line.1587"></a>
1596 <span class="sourceLineNo">1588</span> meta.close();<a name="line.1588"></a>
1597 <span class="sourceLineNo">1589</span> }<a name="line.1589"></a>
1598 <span class="sourceLineNo">1590</span> }<a name="line.1590"></a>
1599 <span class="sourceLineNo">1591</span><a name="line.1591"></a>
1600 <span class="sourceLineNo">1592</span> /**<a name="line.1592"></a>
1601 <span class="sourceLineNo">1593</span> * Adds a hbase:meta row for the specified new region. Initial state of new region is CLOSED.<a name="line.1593"></a>
1602 <span class="sourceLineNo">1594</span> * @param connection connection we're using<a name="line.1594"></a>
1603 <span class="sourceLineNo">1595</span> * @param regionInfo region information<a name="line.1595"></a>
1604 <span class="sourceLineNo">1596</span> * @throws IOException if problem connecting or updating meta<a name="line.1596"></a>
1605 <span class="sourceLineNo">1597</span> */<a name="line.1597"></a>
1606 <span class="sourceLineNo">1598</span> @VisibleForTesting<a name="line.1598"></a>
1607 <span class="sourceLineNo">1599</span> public static void addRegionToMeta(Connection connection, RegionInfo regionInfo)<a name="line.1599"></a>
1608 <span class="sourceLineNo">1600</span> throws IOException {<a name="line.1600"></a>
1609 <span class="sourceLineNo">1601</span> addRegionsToMeta(connection, Collections.singletonList(regionInfo), 1);<a name="line.1601"></a>
1610 <span class="sourceLineNo">1602</span> }<a name="line.1602"></a>
1611 <span class="sourceLineNo">1603</span><a name="line.1603"></a>
1612 <span class="sourceLineNo">1604</span> /**<a name="line.1604"></a>
1613 <span class="sourceLineNo">1605</span> * Adds a hbase:meta row for each of the specified new regions. Initial state for new regions<a name="line.1605"></a>
1614 <span class="sourceLineNo">1606</span> * is CLOSED.<a name="line.1606"></a>
1615 <span class="sourceLineNo">1607</span> * @param connection connection we're using<a name="line.1607"></a>
1616 <span class="sourceLineNo">1608</span> * @param regionInfos region information list<a name="line.1608"></a>
1617 <span class="sourceLineNo">1609</span> * @throws IOException if problem connecting or updating meta<a name="line.1609"></a>
1618 <span class="sourceLineNo">1610</span> */<a name="line.1610"></a>
1619 <span class="sourceLineNo">1611</span> public static void addRegionsToMeta(Connection connection, List&lt;RegionInfo&gt; regionInfos,<a name="line.1611"></a>
1620 <span class="sourceLineNo">1612</span> int regionReplication) throws IOException {<a name="line.1612"></a>
1621 <span class="sourceLineNo">1613</span> addRegionsToMeta(connection, regionInfos, regionReplication, HConstants.LATEST_TIMESTAMP);<a name="line.1613"></a>
1622 <span class="sourceLineNo">1614</span> }<a name="line.1614"></a>
1623 <span class="sourceLineNo">1615</span> /**<a name="line.1615"></a>
1624 <span class="sourceLineNo">1616</span> * Adds a hbase:meta row for each of the specified new regions. Initial state for new regions<a name="line.1616"></a>
1625 <span class="sourceLineNo">1617</span> * is CLOSED.<a name="line.1617"></a>
1626 <span class="sourceLineNo">1618</span> * @param connection connection we're using<a name="line.1618"></a>
1627 <span class="sourceLineNo">1619</span> * @param regionInfos region information list<a name="line.1619"></a>
1628 <span class="sourceLineNo">1620</span> * @param regionReplication<a name="line.1620"></a>
1629 <span class="sourceLineNo">1621</span> * @param ts desired timestamp<a name="line.1621"></a>
1630 <span class="sourceLineNo">1622</span> * @throws IOException if problem connecting or updating meta<a name="line.1622"></a>
1631 <span class="sourceLineNo">1623</span> */<a name="line.1623"></a>
1632 <span class="sourceLineNo">1624</span> public static void addRegionsToMeta(Connection connection, List&lt;RegionInfo&gt; regionInfos,<a name="line.1624"></a>
1633 <span class="sourceLineNo">1625</span> int regionReplication, long ts) throws IOException {<a name="line.1625"></a>
1634 <span class="sourceLineNo">1626</span> List&lt;Put&gt; puts = new ArrayList&lt;&gt;();<a name="line.1626"></a>
1635 <span class="sourceLineNo">1627</span> for (RegionInfo regionInfo : regionInfos) {<a name="line.1627"></a>
1636 <span class="sourceLineNo">1628</span> if (RegionReplicaUtil.isDefaultReplica(regionInfo)) {<a name="line.1628"></a>
1637 <span class="sourceLineNo">1629</span> Put put = makePutFromRegionInfo(regionInfo, ts);<a name="line.1629"></a>
1638 <span class="sourceLineNo">1630</span> // New regions are added with initial state of CLOSED.<a name="line.1630"></a>
1639 <span class="sourceLineNo">1631</span> addRegionStateToPut(put, RegionState.State.CLOSED);<a name="line.1631"></a>
1640 <span class="sourceLineNo">1632</span> // Add empty locations for region replicas so that number of replicas can be cached<a name="line.1632"></a>
1641 <span class="sourceLineNo">1633</span> // whenever the primary region is looked up from meta<a name="line.1633"></a>
1642 <span class="sourceLineNo">1634</span> for (int i = 1; i &lt; regionReplication; i++) {<a name="line.1634"></a>
1643 <span class="sourceLineNo">1635</span> addEmptyLocation(put, i);<a name="line.1635"></a>
1644 <span class="sourceLineNo">1636</span> }<a name="line.1636"></a>
1645 <span class="sourceLineNo">1637</span> puts.add(put);<a name="line.1637"></a>
1646 <span class="sourceLineNo">1638</span> }<a name="line.1638"></a>
1647 <span class="sourceLineNo">1639</span> }<a name="line.1639"></a>
1648 <span class="sourceLineNo">1640</span> putsToMetaTable(connection, puts);<a name="line.1640"></a>
1649 <span