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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.rsgroup;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.ByteArrayInputStream;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Collection;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Collections;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.HashMap;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.HashSet;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.LinkedList;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Map;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Optional;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.OptionalLong;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.Set;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.SortedSet;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.TreeSet;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.util.concurrent.Future;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import java.util.function.Function;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import java.util.stream.Collectors;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.commons.lang3.StringUtils;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.conf.Configuration;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.Coprocessor;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.HConstants;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.NamespaceDescriptor;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.ServerName;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.TableDescriptors;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.TableName;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.AsyncClusterConnection;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.AsyncTable;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.BalanceRequest;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.BalanceResponse;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.client.CoprocessorDescriptorBuilder;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.client.Delete;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.Get;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.client.Mutation;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.client.Put;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.client.Result;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.client.ResultScanner;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.constraint.ConstraintException;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.coprocessor.MultiRowMutationEndpoint;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.master.LoadBalancer;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.master.MasterServices;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.master.RegionPlan;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.master.ServerListener;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.master.ServerManager;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.master.TableStateManager;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.master.assignment.RegionStateNode;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.master.procedure.CreateTableProcedure;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureUtil;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.master.procedure.ProcedureSyncWait;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.net.Address;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.protobuf.ProtobufMagic;<a name="line.81"></a> |
| <span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.regionserver.DisabledRegionSplitPolicy;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.util.FutureUtils;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span>import org.apache.hadoop.hbase.zookeeper.ZKWatcher;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span>import org.apache.hadoop.hbase.zookeeper.ZNodePaths;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span>import org.apache.hadoop.util.Shell;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span>import org.apache.zookeeper.KeeperException;<a name="line.92"></a> |
| <span class="sourceLineNo">093</span>import org.slf4j.Logger;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span>import org.slf4j.LoggerFactory;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.97"></a> |
| <span class="sourceLineNo">098</span>import org.apache.hbase.thirdparty.com.google.common.collect.Maps;<a name="line.98"></a> |
| <span class="sourceLineNo">099</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span><a name="line.100"></a> |
| <span class="sourceLineNo">101</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.101"></a> |
| <span class="sourceLineNo">102</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutationProto;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MultiRowMutationService;<a name="line.103"></a> |
| <span class="sourceLineNo">104</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MutateRowsRequest;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MultiRowMutationProtos.MutateRowsResponse;<a name="line.105"></a> |
| <span class="sourceLineNo">106</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RSGroupProtos;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span>/**<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * This is an implementation of {@link RSGroupInfoManager} which makes use of an HBase table as the<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * persistence store for the group information. It also makes use of zookeeper to store group<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * information needed for bootstrapping during offline mode.<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * <h2>Concurrency</h2> RSGroup state is kept locally in Maps. There is a rsgroup name to cached<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * RSGroupInfo Map at {@link RSGroupInfoHolder#groupName2Group}. These Maps are persisted to the<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * hbase:rsgroup table (and cached in zk) on each modification.<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * <p/><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * Mutations on state are synchronized but reads can continue without having to wait on an instance<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * monitor, mutations do wholesale replace of the Maps on update -- Copy-On-Write; the local Maps of<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * state are read-only, just-in-case (see flushConfig).<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * <p/><a name="line.119"></a> |
| <span class="sourceLineNo">120</span> * Reads must not block else there is a danger we'll deadlock.<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> * <p/><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> * Clients of this class, the {@link RSGroupAdminEndpoint} for example, want to query and then act<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> * on the results of the query modifying cache in zookeeper without another thread making<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> * intermediate modifications. These clients synchronize on the 'this' instance so no other has<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> * access concurrently. Reads must be able to continue concurrently.<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> */<a name="line.126"></a> |
| <span class="sourceLineNo">127</span>@InterfaceAudience.Private<a name="line.127"></a> |
| <span class="sourceLineNo">128</span>final class RSGroupInfoManagerImpl implements RSGroupInfoManager {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> private static final Logger LOG = LoggerFactory.getLogger(RSGroupInfoManagerImpl.class);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span><a name="line.130"></a> |
| <span class="sourceLineNo">131</span> // Assigned before user tables<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> static final TableName RSGROUP_TABLE_NAME =<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> TableName.valueOf(NamespaceDescriptor.SYSTEM_NAMESPACE_NAME_STR, "rsgroup");<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> static final String KEEP_ONE_SERVER_IN_DEFAULT_ERROR_MESSAGE =<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> "should keep at least " + "one server in 'default' RSGroup.";<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> /** Define the config key of retries threshold when movements failed */<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> static final String FAILED_MOVE_MAX_RETRY = "hbase.rsgroup.move.max.retry";<a name="line.139"></a> |
| <span class="sourceLineNo">140</span><a name="line.140"></a> |
| <span class="sourceLineNo">141</span> /** Define the default number of retries */<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> static final int DEFAULT_MAX_RETRY_VALUE = 50;<a name="line.142"></a> |
| <span class="sourceLineNo">143</span><a name="line.143"></a> |
| <span class="sourceLineNo">144</span> private static final String RS_GROUP_ZNODE = "rsgroup";<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> static final byte[] META_FAMILY_BYTES = Bytes.toBytes("m");<a name="line.146"></a> |
| <span class="sourceLineNo">147</span><a name="line.147"></a> |
| <span class="sourceLineNo">148</span> static final byte[] META_QUALIFIER_BYTES = Bytes.toBytes("i");<a name="line.148"></a> |
| <span class="sourceLineNo">149</span><a name="line.149"></a> |
| <span class="sourceLineNo">150</span> static final String MIGRATE_THREAD_NAME = "Migrate-RSGroup-Tables";<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> private static final byte[] ROW_KEY = { 0 };<a name="line.152"></a> |
| <span class="sourceLineNo">153</span><a name="line.153"></a> |
| <span class="sourceLineNo">154</span> /** Table descriptor for <code>hbase:rsgroup</code> catalog table */<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> private static final TableDescriptor RSGROUP_TABLE_DESC;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> static {<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> TableDescriptorBuilder builder = TableDescriptorBuilder.newBuilder(RSGROUP_TABLE_NAME)<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(META_FAMILY_BYTES))<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> .setRegionSplitPolicyClassName(DisabledRegionSplitPolicy.class.getName());<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> try {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> builder.setCoprocessor(<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> CoprocessorDescriptorBuilder.newBuilder(MultiRowMutationEndpoint.class.getName())<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> .setPriority(Coprocessor.PRIORITY_SYSTEM).build());<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> } catch (IOException ex) {<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> throw new Error(ex);<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> RSGROUP_TABLE_DESC = builder.build();<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span><a name="line.169"></a> |
| <span class="sourceLineNo">170</span> // There two Maps are immutable and wholesale replaced on each modification<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> // so are safe to access concurrently. See class comment.<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> private static final class RSGroupInfoHolder {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> final ImmutableMap<String, RSGroupInfo> groupName2Group;<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> final ImmutableMap<TableName, RSGroupInfo> tableName2Group;<a name="line.174"></a> |
| <span class="sourceLineNo">175</span><a name="line.175"></a> |
| <span class="sourceLineNo">176</span> RSGroupInfoHolder() {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> this(Collections.emptyMap());<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> }<a name="line.178"></a> |
| <span class="sourceLineNo">179</span><a name="line.179"></a> |
| <span class="sourceLineNo">180</span> RSGroupInfoHolder(Map<String, RSGroupInfo> rsGroupMap) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> ImmutableMap.Builder<String, RSGroupInfo> group2Name2GroupBuilder = ImmutableMap.builder();<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> ImmutableMap.Builder<TableName, RSGroupInfo> tableName2GroupBuilder = ImmutableMap.builder();<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> rsGroupMap.forEach((groupName, rsGroupInfo) -> {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> group2Name2GroupBuilder.put(groupName, rsGroupInfo);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> if (!groupName.equals(RSGroupInfo.DEFAULT_GROUP)) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> rsGroupInfo.getTables()<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> .forEach(tableName -> tableName2GroupBuilder.put(tableName, rsGroupInfo));<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> }<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> });<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> this.groupName2Group = group2Name2GroupBuilder.build();<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> this.tableName2Group = tableName2GroupBuilder.build();<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> }<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> }<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> private volatile RSGroupInfoHolder holder = new RSGroupInfoHolder();<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> private final MasterServices masterServices;<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> private final AsyncClusterConnection conn;<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> private final ZKWatcher watcher;<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> private final RSGroupStartupWorker rsGroupStartupWorker;<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> // contains list of groups that were last flushed to persistent store<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> private Set<String> prevRSGroups = new HashSet<>();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span><a name="line.203"></a> |
| <span class="sourceLineNo">204</span> // Package visibility for testing<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> static class RSGroupMappingScript {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> static final String RS_GROUP_MAPPING_SCRIPT = "hbase.rsgroup.table.mapping.script";<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> static final String RS_GROUP_MAPPING_SCRIPT_TIMEOUT =<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> "hbase.rsgroup.table.mapping.script.timeout";<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> private final String script;<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> private final long scriptTimeout;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span><a name="line.212"></a> |
| <span class="sourceLineNo">213</span> RSGroupMappingScript(Configuration conf) {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> script = conf.get(RS_GROUP_MAPPING_SCRIPT);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> scriptTimeout = conf.getLong(RS_GROUP_MAPPING_SCRIPT_TIMEOUT, 5000); // 5 seconds<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> String getRSGroup(String namespace, String tablename) {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> if (script == null || script.isEmpty()) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> return null;<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> Shell.ShellCommandExecutor rsgroupMappingScript =<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> new Shell.ShellCommandExecutor(new String[] { script, "", "" }, null, null, scriptTimeout);<a name="line.223"></a> |
| <span class="sourceLineNo">224</span><a name="line.224"></a> |
| <span class="sourceLineNo">225</span> String[] exec = rsgroupMappingScript.getExecString();<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> exec[1] = namespace;<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> exec[2] = tablename;<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> try {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> rsgroupMappingScript.execute();<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> } catch (IOException e) {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> // This exception may happen, like process doesn't have permission to run this script.<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> LOG.error("{}, placing {} back to default rsgroup", e.getMessage(),<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> TableName.valueOf(namespace, tablename));<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> return RSGroupInfo.DEFAULT_GROUP;<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> return rsgroupMappingScript.getOutput().trim();<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> }<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> }<a name="line.238"></a> |
| <span class="sourceLineNo">239</span><a name="line.239"></a> |
| <span class="sourceLineNo">240</span> private RSGroupMappingScript script;<a name="line.240"></a> |
| <span class="sourceLineNo">241</span><a name="line.241"></a> |
| <span class="sourceLineNo">242</span> private RSGroupInfoManagerImpl(MasterServices masterServices) {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> this.masterServices = masterServices;<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> this.watcher = masterServices.getZooKeeper();<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> this.conn = masterServices.getAsyncClusterConnection();<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> this.rsGroupStartupWorker = new RSGroupStartupWorker();<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> this.script = new RSGroupMappingScript(masterServices.getConfiguration());<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> private synchronized void updateDefaultServers() {<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> LOG.info("Updating default servers.");<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> Map<String, RSGroupInfo> newGroupMap = Maps.newHashMap(holder.groupName2Group);<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> RSGroupInfo oldDefaultGroupInfo = getRSGroup(RSGroupInfo.DEFAULT_GROUP);<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> assert oldDefaultGroupInfo != null;<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> RSGroupInfo newDefaultGroupInfo =<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> new RSGroupInfo(RSGroupInfo.DEFAULT_GROUP, getDefaultServers());<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> newDefaultGroupInfo.addAllTables(oldDefaultGroupInfo.getTables());<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> newGroupMap.put(RSGroupInfo.DEFAULT_GROUP, newDefaultGroupInfo);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> // do not need to persist, as we do not persist default group.<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> resetRSGroupMap(newGroupMap);<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> LOG.info("Updated default servers, {} servers", newDefaultGroupInfo.getServers().size());<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> if (LOG.isDebugEnabled()) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> LOG.debug("New default servers list: {}", newDefaultGroupInfo.getServers());<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> private synchronized void init() throws IOException {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> refresh(false);<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> masterServices.getServerManager().registerListener(new ServerListener() {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> @Override<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> public void serverAdded(ServerName serverName) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> updateDefaultServers();<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> }<a name="line.274"></a> |
| <span class="sourceLineNo">275</span><a name="line.275"></a> |
| <span class="sourceLineNo">276</span> @Override<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> public void serverRemoved(ServerName serverName) {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> updateDefaultServers();<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> });<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> static RSGroupInfoManager getInstance(MasterServices masterServices) throws IOException {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> RSGroupInfoManagerImpl instance = new RSGroupInfoManagerImpl(masterServices);<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> instance.init();<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> return instance;<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> }<a name="line.287"></a> |
| <span class="sourceLineNo">288</span><a name="line.288"></a> |
| <span class="sourceLineNo">289</span> public void start() {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> // create system table of rsgroup<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> rsGroupStartupWorker.start();<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> }<a name="line.292"></a> |
| <span class="sourceLineNo">293</span><a name="line.293"></a> |
| <span class="sourceLineNo">294</span> @Override<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> public synchronized void addRSGroup(RSGroupInfo rsGroupInfo) throws IOException {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> checkGroupName(rsGroupInfo.getName());<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> Map<String, RSGroupInfo> rsGroupMap = holder.groupName2Group;<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> if (<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> rsGroupMap.get(rsGroupInfo.getName()) != null<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> || rsGroupInfo.getName().equals(RSGroupInfo.DEFAULT_GROUP)<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> ) {<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> throw new ConstraintException("Group already exists: " + rsGroupInfo.getName());<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> }<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> Map<String, RSGroupInfo> newGroupMap = Maps.newHashMap(rsGroupMap);<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> newGroupMap.put(rsGroupInfo.getName(), rsGroupInfo);<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> flushConfig(newGroupMap);<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> LOG.info("Add group {} done.", rsGroupInfo.getName());<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> }<a name="line.308"></a> |
| <span class="sourceLineNo">309</span><a name="line.309"></a> |
| <span class="sourceLineNo">310</span> private RSGroupInfo getRSGroupInfo(final String groupName) throws ConstraintException {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> RSGroupInfo rsGroupInfo = holder.groupName2Group.get(groupName);<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> if (rsGroupInfo == null) {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> throw new ConstraintException("RSGroup " + groupName + " does not exist");<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> }<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> return rsGroupInfo;<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> }<a name="line.316"></a> |
| <span class="sourceLineNo">317</span><a name="line.317"></a> |
| <span class="sourceLineNo">318</span> /** Returns Set of online Servers named for their hostname and port (not ServerName). */<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> private Set<Address> getOnlineServers() {<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> return masterServices.getServerManager().getOnlineServers().keySet().stream()<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> .map(ServerName::getAddress).collect(Collectors.toSet());<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> }<a name="line.322"></a> |
| <span class="sourceLineNo">323</span><a name="line.323"></a> |
| <span class="sourceLineNo">324</span> public synchronized Set<Address> moveServers(Set<Address> servers, String srcGroup,<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> String dstGroup) throws IOException {<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> RSGroupInfo src = getRSGroupInfo(srcGroup);<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> RSGroupInfo dst = getRSGroupInfo(dstGroup);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> Set<Address> movedServers = new HashSet<>();<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> // If destination is 'default' rsgroup, only add servers that are online. If not online, drop<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> // it. If not 'default' group, add server to 'dst' rsgroup EVEN IF IT IS NOT online (could be a<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> // rsgroup of dead servers that are to come back later).<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> Set<Address> onlineServers =<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> dst.getName().equals(RSGroupInfo.DEFAULT_GROUP) ? getOnlineServers() : null;<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> for (Address el : servers) {<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> src.removeServer(el);<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> if (onlineServers != null) {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> if (!onlineServers.contains(el)) {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> if (LOG.isDebugEnabled()) {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> LOG.debug("Dropping " + el + " during move-to-default RSGroup because not online");<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> }<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> continue;<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> }<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> }<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> dst.addServer(el);<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> movedServers.add(el);<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> }<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> Map<String, RSGroupInfo> newGroupMap = Maps.newHashMap(holder.groupName2Group);<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> newGroupMap.put(src.getName(), src);<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> newGroupMap.put(dst.getName(), dst);<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> flushConfig(newGroupMap);<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> return movedServers;<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span><a name="line.353"></a> |
| <span class="sourceLineNo">354</span> @Override<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> public RSGroupInfo getRSGroupOfServer(Address serverHostPort) {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> for (RSGroupInfo info : holder.groupName2Group.values()) {<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> if (info.containsServer(serverHostPort)) {<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> return info;<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> }<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> }<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> return null;<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> }<a name="line.362"></a> |
| <span class="sourceLineNo">363</span><a name="line.363"></a> |
| <span class="sourceLineNo">364</span> @Override<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> public RSGroupInfo getRSGroup(String groupName) {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> return holder.groupName2Group.get(groupName);<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> }<a name="line.367"></a> |
| <span class="sourceLineNo">368</span><a name="line.368"></a> |
| <span class="sourceLineNo">369</span> @Override<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> public synchronized void removeRSGroup(String groupName) throws IOException {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> RSGroupInfo rsGroupInfo = getRSGroupInfo(groupName);<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> int serverCount = rsGroupInfo.getServers().size();<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> if (serverCount > 0) {<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> throw new ConstraintException("RSGroup " + groupName + " has " + serverCount<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> + " servers; you must remove these servers from the RSGroup before"<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> + " the RSGroup can be removed.");<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> }<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> for (TableDescriptor td : masterServices.getTableDescriptors().getAll().values()) {<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> if (td.getRegionServerGroup().map(groupName::equals).orElse(false)) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> throw new ConstraintException("RSGroup " + groupName + " is already referenced by "<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> + td.getTableName() + "; you must remove all the tables from the RSGroup before "<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> + "the RSGroup can be removed.");<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> }<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> for (NamespaceDescriptor ns : masterServices.getClusterSchema().getNamespaces()) {<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> String nsGroup = ns.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP);<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> if (nsGroup != null && nsGroup.equals(groupName)) {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> throw new ConstraintException(<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> "RSGroup " + groupName + " is referenced by namespace: " + ns.getName());<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> }<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> Map<String, RSGroupInfo> rsGroupMap = holder.groupName2Group;<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> if (!rsGroupMap.containsKey(groupName) || groupName.equals(RSGroupInfo.DEFAULT_GROUP)) {<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> throw new ConstraintException(<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> "Group " + groupName + " does not exist or is a reserved " + "group");<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> }<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> Map<String, RSGroupInfo> newGroupMap = Maps.newHashMap(rsGroupMap);<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> newGroupMap.remove(groupName);<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> flushConfig(newGroupMap);<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> LOG.info("Remove group {} done", groupName);<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> }<a name="line.401"></a> |
| <span class="sourceLineNo">402</span><a name="line.402"></a> |
| <span class="sourceLineNo">403</span> @Override<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> public List<RSGroupInfo> listRSGroups() {<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> return Lists.newArrayList(holder.groupName2Group.values());<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> }<a name="line.406"></a> |
| <span class="sourceLineNo">407</span><a name="line.407"></a> |
| <span class="sourceLineNo">408</span> @Override<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> public boolean isOnline() {<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> return rsGroupStartupWorker.isOnline();<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> }<a name="line.411"></a> |
| <span class="sourceLineNo">412</span><a name="line.412"></a> |
| <span class="sourceLineNo">413</span> @Override<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> public synchronized void removeServers(Set<Address> servers) throws IOException {<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> if (servers == null || servers.isEmpty()) {<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> throw new ConstraintException("The set of servers to remove cannot be null or empty.");<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> }<a name="line.417"></a> |
| <span class="sourceLineNo">418</span><a name="line.418"></a> |
| <span class="sourceLineNo">419</span> // check the set of servers<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> checkForDeadOrOnlineServers(servers);<a name="line.420"></a> |
| <span class="sourceLineNo">421</span><a name="line.421"></a> |
| <span class="sourceLineNo">422</span> Map<String, RSGroupInfo> rsGroupInfos = new HashMap<String, RSGroupInfo>();<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> for (Address el : servers) {<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> RSGroupInfo rsGroupInfo = getRSGroupOfServer(el);<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> if (rsGroupInfo != null) {<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> RSGroupInfo newRsGroupInfo = rsGroupInfos.get(rsGroupInfo.getName());<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> if (newRsGroupInfo == null) {<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> rsGroupInfo.removeServer(el);<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> rsGroupInfos.put(rsGroupInfo.getName(), rsGroupInfo);<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> } else {<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> newRsGroupInfo.removeServer(el);<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> rsGroupInfos.put(newRsGroupInfo.getName(), newRsGroupInfo);<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> }<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> } else {<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> LOG.warn("Server " + el + " does not belong to any rsgroup.");<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> }<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> }<a name="line.437"></a> |
| <span class="sourceLineNo">438</span><a name="line.438"></a> |
| <span class="sourceLineNo">439</span> if (rsGroupInfos.size() > 0) {<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> Map<String, RSGroupInfo> newGroupMap = Maps.newHashMap(holder.groupName2Group);<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> newGroupMap.putAll(rsGroupInfos);<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> flushConfig(newGroupMap);<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> }<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> LOG.info("Remove decommissioned servers {} from RSGroup done", servers);<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> }<a name="line.445"></a> |
| <span class="sourceLineNo">446</span><a name="line.446"></a> |
| <span class="sourceLineNo">447</span> private List<RSGroupInfo> retrieveGroupListFromGroupTable() throws IOException {<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> List<RSGroupInfo> rsGroupInfoList = Lists.newArrayList();<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> AsyncTable<?> table = conn.getTable(RSGROUP_TABLE_NAME);<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> try (ResultScanner scanner = table.getScanner(META_FAMILY_BYTES, META_QUALIFIER_BYTES)) {<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> for (Result result;;) {<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> result = scanner.next();<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> if (result == null) {<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> break;<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> }<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> RSGroupProtos.RSGroupInfo proto = RSGroupProtos.RSGroupInfo<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> .parseFrom(result.getValue(META_FAMILY_BYTES, META_QUALIFIER_BYTES));<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> rsGroupInfoList.add(ProtobufUtil.toGroupInfo(proto));<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> }<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> }<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> return rsGroupInfoList;<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> }<a name="line.462"></a> |
| <span class="sourceLineNo">463</span><a name="line.463"></a> |
| <span class="sourceLineNo">464</span> private List<RSGroupInfo> retrieveGroupListFromZookeeper() throws IOException {<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> String groupBasePath = ZNodePaths.joinZNode(watcher.getZNodePaths().baseZNode, RS_GROUP_ZNODE);<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> List<RSGroupInfo> RSGroupInfoList = Lists.newArrayList();<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> // Overwrite any info stored by table, this takes precedence<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> try {<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> if (ZKUtil.checkExists(watcher, groupBasePath) != -1) {<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> List<String> children = ZKUtil.listChildrenAndWatchForNewChildren(watcher, groupBasePath);<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> if (children == null) {<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> return RSGroupInfoList;<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> }<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> for (String znode : children) {<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> byte[] data = ZKUtil.getData(watcher, ZNodePaths.joinZNode(groupBasePath, znode));<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> if (data != null && data.length > 0) {<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> ProtobufUtil.expectPBMagicPrefix(data);<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> ByteArrayInputStream bis =<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> new ByteArrayInputStream(data, ProtobufUtil.lengthOfPBMagic(), data.length);<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> RSGroupInfoList.add(ProtobufUtil.toGroupInfo(RSGroupProtos.RSGroupInfo.parseFrom(bis)));<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> }<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> }<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> LOG.debug("Read ZK GroupInfo count:" + RSGroupInfoList.size());<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> }<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> } catch (KeeperException | DeserializationException | InterruptedException e) {<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> throw new IOException("Failed to read rsGroupZNode", e);<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> }<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> return RSGroupInfoList;<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> }<a name="line.489"></a> |
| <span class="sourceLineNo">490</span><a name="line.490"></a> |
| <span class="sourceLineNo">491</span> private void migrate(Collection<RSGroupInfo> groupList) {<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> TableDescriptors tds = masterServices.getTableDescriptors();<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> ProcedureExecutor<MasterProcedureEnv> procExec = masterServices.getMasterProcedureExecutor();<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> for (RSGroupInfo groupInfo : groupList) {<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> if (groupInfo.getName().equals(RSGroupInfo.DEFAULT_GROUP)) {<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> continue;<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> }<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> SortedSet<TableName> failedTables = new TreeSet<>();<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> List<MigrateRSGroupProcedure> procs = new ArrayList<>();<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> for (TableName tableName : groupInfo.getTables()) {<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> LOG.debug("Migrating {} in group {}", tableName, groupInfo.getName());<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> TableDescriptor oldTd;<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> try {<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> oldTd = tds.get(tableName);<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> } catch (IOException e) {<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> LOG.warn("Failed to migrate {} in group {}", tableName, groupInfo.getName(), e);<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> failedTables.add(tableName);<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> continue;<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> }<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> if (oldTd == null) {<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> continue;<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> }<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> if (oldTd.getRegionServerGroup().isPresent()) {<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> // either we have already migrated it or that user has set the rs group using the new<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> // code which will set the group directly on table descriptor, skip.<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> LOG.debug("Skip migrating {} since it is already in group {}", tableName,<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> oldTd.getRegionServerGroup().get());<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> continue;<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> }<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> // This is a bit tricky. Since we know that the region server group config in<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> // TableDescriptor will only be used at master side, it is fine to just update the table<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> // descriptor on file system and also the cache, without reopening all the regions. This<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> // will be much faster than the normal modifyTable. And when upgrading, we will update<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> // master first and then region server, so after all the region servers has been reopened,<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> // the new TableDescriptor will be loaded.<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> MigrateRSGroupProcedure proc =<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> new MigrateRSGroupProcedure(procExec.getEnvironment(), tableName);<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> procExec.submitProcedure(proc);<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> procs.add(proc);<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> }<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> for (MigrateRSGroupProcedure proc : procs) {<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> try {<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> ProcedureSyncWait.waitForProcedureToComplete(procExec, proc, 60000);<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> } catch (IOException e) {<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> LOG.warn("Failed to migrate rs group {} for table {}", groupInfo.getName(),<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> proc.getTableName());<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> failedTables.add(proc.getTableName());<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> }<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> }<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> LOG.debug("Done migrating {}, failed tables {}", groupInfo.getName(), failedTables);<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> synchronized (RSGroupInfoManagerImpl.this) {<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> Map<String, RSGroupInfo> rsGroupMap = holder.groupName2Group;<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> RSGroupInfo currentInfo = rsGroupMap.get(groupInfo.getName());<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> if (currentInfo != null) {<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> RSGroupInfo newInfo =<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> new RSGroupInfo(currentInfo.getName(), currentInfo.getServers(), failedTables);<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> Map<String, RSGroupInfo> newGroupMap = new HashMap<>(rsGroupMap);<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> newGroupMap.put(groupInfo.getName(), newInfo);<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> try {<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> flushConfig(newGroupMap);<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> } catch (IOException e) {<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> LOG.warn("Failed to persist rs group {}", newInfo.getName(), e);<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> }<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> }<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> }<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> }<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> }<a name="line.557"></a> |
| <span class="sourceLineNo">558</span><a name="line.558"></a> |
| <span class="sourceLineNo">559</span> // Migrate the table rs group info from RSGroupInfo into the table descriptor<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> // Notice that we do not want to block the initialize so this will be done in background, and<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> // during the migrating, the rs group info maybe incomplete and cause region to be misplaced.<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> private void migrate() {<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> Thread migrateThread = new Thread(MIGRATE_THREAD_NAME) {<a name="line.563"></a> |
| <span class="sourceLineNo">564</span><a name="line.564"></a> |
| <span class="sourceLineNo">565</span> @Override<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> public void run() {<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> LOG.info("Start migrating table rs group config");<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> while (!masterServices.isStopped()) {<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> Collection<RSGroupInfo> groups = holder.groupName2Group.values();<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> boolean hasTables = groups.stream().anyMatch(r -> !r.getTables().isEmpty());<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> if (!hasTables) {<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> break;<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> }<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> migrate(groups);<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> }<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> LOG.info("Done migrating table rs group info");<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> }<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> };<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> migrateThread.setDaemon(true);<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> migrateThread.start();<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> }<a name="line.581"></a> |
| <span class="sourceLineNo">582</span><a name="line.582"></a> |
| <span class="sourceLineNo">583</span> /**<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> * Read rsgroup info from the source of truth, the hbase:rsgroup table. Update zk cache. Called on<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> * startup of the manager.<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> */<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> private synchronized void refresh(boolean forceOnline) throws IOException {<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> List<RSGroupInfo> groupList = new ArrayList<>();<a name="line.588"></a> |
| <span class="sourceLineNo">589</span><a name="line.589"></a> |
| <span class="sourceLineNo">590</span> // Overwrite anything read from zk, group table is source of truth<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> // if online read from GROUP table<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> if (forceOnline || isOnline()) {<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> LOG.debug("Refreshing in Online mode.");<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> groupList.addAll(retrieveGroupListFromGroupTable());<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> } else {<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> LOG.debug("Refreshing in Offline mode.");<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> groupList.addAll(retrieveGroupListFromZookeeper());<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> }<a name="line.598"></a> |
| <span class="sourceLineNo">599</span><a name="line.599"></a> |
| <span class="sourceLineNo">600</span> // This is added to the last of the list so it overwrites the 'default' rsgroup loaded<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> // from region group table or zk<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> groupList.add(new RSGroupInfo(RSGroupInfo.DEFAULT_GROUP, getDefaultServers(groupList)));<a name="line.602"></a> |
| <span class="sourceLineNo">603</span><a name="line.603"></a> |
| <span class="sourceLineNo">604</span> // populate the data<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> HashMap<String, RSGroupInfo> newGroupMap = Maps.newHashMap();<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> for (RSGroupInfo group : groupList) {<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> newGroupMap.put(group.getName(), group);<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> }<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> resetRSGroupMap(newGroupMap);<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> updateCacheOfRSGroups(newGroupMap.keySet());<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> }<a name="line.611"></a> |
| <span class="sourceLineNo">612</span><a name="line.612"></a> |
| <span class="sourceLineNo">613</span> private void flushConfigTable(Map<String, RSGroupInfo> groupMap) throws IOException {<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> List<Mutation> mutations = Lists.newArrayList();<a name="line.614"></a> |
| <span class="sourceLineNo">615</span><a name="line.615"></a> |
| <span class="sourceLineNo">616</span> // populate deletes<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> for (String groupName : prevRSGroups) {<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> if (!groupMap.containsKey(groupName)) {<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> Delete d = new Delete(Bytes.toBytes(groupName));<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> mutations.add(d);<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> }<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> }<a name="line.622"></a> |
| <span class="sourceLineNo">623</span><a name="line.623"></a> |
| <span class="sourceLineNo">624</span> // populate puts<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> for (RSGroupInfo gi : groupMap.values()) {<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> if (!gi.getName().equals(RSGroupInfo.DEFAULT_GROUP)) {<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> RSGroupProtos.RSGroupInfo proto = ProtobufUtil.toProtoGroupInfo(gi);<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> Put p = new Put(Bytes.toBytes(gi.getName()));<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> p.addColumn(META_FAMILY_BYTES, META_QUALIFIER_BYTES, proto.toByteArray());<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> mutations.add(p);<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> }<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> }<a name="line.632"></a> |
| <span class="sourceLineNo">633</span><a name="line.633"></a> |
| <span class="sourceLineNo">634</span> if (mutations.size() > 0) {<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> multiMutate(mutations);<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> }<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> }<a name="line.637"></a> |
| <span class="sourceLineNo">638</span><a name="line.638"></a> |
| <span class="sourceLineNo">639</span> private synchronized void flushConfig() throws IOException {<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> flushConfig(holder.groupName2Group);<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> }<a name="line.641"></a> |
| <span class="sourceLineNo">642</span><a name="line.642"></a> |
| <span class="sourceLineNo">643</span> private synchronized void flushConfig(Map<String, RSGroupInfo> newGroupMap) throws IOException {<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> // For offline mode persistence is still unavailable<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> // We're refreshing in-memory state but only for servers in default group<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> if (!isOnline()) {<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> if (newGroupMap == holder.groupName2Group) {<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> // When newGroupMap is this.rsGroupMap itself,<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> // do not need to check default group and other groups as followed<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> return;<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> }<a name="line.651"></a> |
| <span class="sourceLineNo">652</span><a name="line.652"></a> |
| <span class="sourceLineNo">653</span> LOG.debug("Offline mode, cannot persist to {}", RSGROUP_TABLE_NAME);<a name="line.653"></a> |
| <span class="sourceLineNo">654</span><a name="line.654"></a> |
| <span class="sourceLineNo">655</span> Map<String, RSGroupInfo> oldGroupMap = Maps.newHashMap(holder.groupName2Group);<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> RSGroupInfo oldDefaultGroup = oldGroupMap.remove(RSGroupInfo.DEFAULT_GROUP);<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> RSGroupInfo newDefaultGroup = newGroupMap.remove(RSGroupInfo.DEFAULT_GROUP);<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> if (<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> !oldGroupMap.equals(newGroupMap)<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> /* compare both tables and servers in other groups */ || !oldDefaultGroup.getTables()<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> .equals(newDefaultGroup.getTables())<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> /* compare tables in default group */<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> ) {<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> throw new IOException("Only servers in default group can be updated during offline mode");<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> }<a name="line.665"></a> |
| <span class="sourceLineNo">666</span><a name="line.666"></a> |
| <span class="sourceLineNo">667</span> // Restore newGroupMap by putting its default group back<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> newGroupMap.put(RSGroupInfo.DEFAULT_GROUP, newDefaultGroup);<a name="line.668"></a> |
| <span class="sourceLineNo">669</span><a name="line.669"></a> |
| <span class="sourceLineNo">670</span> // Refresh rsGroupMap<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> // according to the inputted newGroupMap (an updated copy of rsGroupMap)<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> this.holder = new RSGroupInfoHolder(newGroupMap);<a name="line.672"></a> |
| <span class="sourceLineNo">673</span><a name="line.673"></a> |
| <span class="sourceLineNo">674</span> LOG.debug("New RSGroup map: {}", newGroupMap);<a name="line.674"></a> |
| <span class="sourceLineNo">675</span><a name="line.675"></a> |
| <span class="sourceLineNo">676</span> // Do not need to update tableMap<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> // because only the update on servers in default group is allowed above,<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> // or IOException will be thrown<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> return;<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> }<a name="line.680"></a> |
| <span class="sourceLineNo">681</span><a name="line.681"></a> |
| <span class="sourceLineNo">682</span> /* For online mode, persist to hbase:rsgroup and Zookeeper */<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> LOG.debug("Online mode, persisting to {} and ZK", RSGROUP_TABLE_NAME);<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> flushConfigTable(newGroupMap);<a name="line.684"></a> |
| <span class="sourceLineNo">685</span><a name="line.685"></a> |
| <span class="sourceLineNo">686</span> // Make changes visible after having been persisted to the source of truth<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> resetRSGroupMap(newGroupMap);<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> saveRSGroupMapToZK(newGroupMap);<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> updateCacheOfRSGroups(newGroupMap.keySet());<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> LOG.info("Flush config done, new RSGroup map: {}", newGroupMap);<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> }<a name="line.691"></a> |
| <span class="sourceLineNo">692</span><a name="line.692"></a> |
| <span class="sourceLineNo">693</span> private void saveRSGroupMapToZK(Map<String, RSGroupInfo> newGroupMap) throws IOException {<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> LOG.debug("Saving RSGroup info to ZK");<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> try {<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> String groupBasePath =<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> ZNodePaths.joinZNode(watcher.getZNodePaths().baseZNode, RS_GROUP_ZNODE);<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> ZKUtil.createAndFailSilent(watcher, groupBasePath, ProtobufMagic.PB_MAGIC);<a name="line.698"></a> |
| <span class="sourceLineNo">699</span><a name="line.699"></a> |
| <span class="sourceLineNo">700</span> List<ZKUtil.ZKUtilOp> zkOps = new ArrayList<>(newGroupMap.size());<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> for (String groupName : prevRSGroups) {<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> if (!newGroupMap.containsKey(groupName)) {<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> String znode = ZNodePaths.joinZNode(groupBasePath, groupName);<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> zkOps.add(ZKUtil.ZKUtilOp.deleteNodeFailSilent(znode));<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> }<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> }<a name="line.706"></a> |
| <span class="sourceLineNo">707</span><a name="line.707"></a> |
| <span class="sourceLineNo">708</span> for (RSGroupInfo gi : newGroupMap.values()) {<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> if (!gi.getName().equals(RSGroupInfo.DEFAULT_GROUP)) {<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> String znode = ZNodePaths.joinZNode(groupBasePath, gi.getName());<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> RSGroupProtos.RSGroupInfo proto = ProtobufUtil.toProtoGroupInfo(gi);<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> LOG.debug("Updating znode: " + znode);<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> ZKUtil.createAndFailSilent(watcher, znode);<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> zkOps.add(ZKUtil.ZKUtilOp.deleteNodeFailSilent(znode));<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> zkOps.add(ZKUtil.ZKUtilOp.createAndFailSilent(znode,<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> ProtobufUtil.prependPBMagic(proto.toByteArray())));<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> }<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> }<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> LOG.debug("Writing ZK GroupInfo count: " + zkOps.size());<a name="line.719"></a> |
| <span class="sourceLineNo">720</span><a name="line.720"></a> |
| <span class="sourceLineNo">721</span> ZKUtil.multiOrSequential(watcher, zkOps, false);<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> } catch (KeeperException e) {<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> LOG.error("Failed to write to rsGroupZNode", e);<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> masterServices.abort("Failed to write to rsGroupZNode", e);<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> throw new IOException("Failed to write to rsGroupZNode", e);<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> }<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> }<a name="line.727"></a> |
| <span class="sourceLineNo">728</span><a name="line.728"></a> |
| <span class="sourceLineNo">729</span> /**<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> * Make changes visible. Caller must be synchronized on 'this'.<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> */<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> private void resetRSGroupMap(Map<String, RSGroupInfo> newRSGroupMap) {<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> this.holder = new RSGroupInfoHolder(newRSGroupMap);<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> }<a name="line.734"></a> |
| <span class="sourceLineNo">735</span><a name="line.735"></a> |
| <span class="sourceLineNo">736</span> /**<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> * Update cache of rsgroups. Caller must be synchronized on 'this'.<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> * @param currentGroups Current list of Groups.<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> */<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> private void updateCacheOfRSGroups(final Set<String> currentGroups) {<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> this.prevRSGroups.clear();<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> this.prevRSGroups.addAll(currentGroups);<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> }<a name="line.743"></a> |
| <span class="sourceLineNo">744</span><a name="line.744"></a> |
| <span class="sourceLineNo">745</span> // Called by ServerEventsListenerThread. Presume it has lock on this manager when it runs.<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> private SortedSet<Address> getDefaultServers() {<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> return getDefaultServers(listRSGroups()/* get from rsGroupMap */);<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> }<a name="line.748"></a> |
| <span class="sourceLineNo">749</span><a name="line.749"></a> |
| <span class="sourceLineNo">750</span> // Called by ServerEventsListenerThread. Presume it has lock on this manager when it runs.<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> private SortedSet<Address> getDefaultServers(List<RSGroupInfo> rsGroupInfoList) {<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> // Build a list of servers in other groups than default group, from rsGroupMap<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> Set<Address> serversInOtherGroup = new HashSet<>();<a name="line.753"></a> |
| <span class="sourceLineNo">754</span> for (RSGroupInfo group : rsGroupInfoList) {<a name="line.754"></a> |
| <span class="sourceLineNo">755</span> if (!RSGroupInfo.DEFAULT_GROUP.equals(group.getName())) { // not default group<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> serversInOtherGroup.addAll(group.getServers());<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> }<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> }<a name="line.758"></a> |
| <span class="sourceLineNo">759</span><a name="line.759"></a> |
| <span class="sourceLineNo">760</span> // Get all online servers from Zookeeper and find out servers in default group<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> SortedSet<Address> defaultServers = Sets.newTreeSet();<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> for (ServerName serverName : masterServices.getServerManager().getOnlineServers().keySet()) {<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> Address server = Address.fromParts(serverName.getHostname(), serverName.getPort());<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> if (!serversInOtherGroup.contains(server)) { // not in other groups<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> defaultServers.add(server);<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> }<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> }<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> return defaultServers;<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> }<a name="line.769"></a> |
| <span class="sourceLineNo">770</span><a name="line.770"></a> |
| <span class="sourceLineNo">771</span> private class RSGroupStartupWorker extends Thread {<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> private final Logger LOG = LoggerFactory.getLogger(RSGroupStartupWorker.class);<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> private volatile boolean online = false;<a name="line.773"></a> |
| <span class="sourceLineNo">774</span><a name="line.774"></a> |
| <span class="sourceLineNo">775</span> RSGroupStartupWorker() {<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> super(RSGroupStartupWorker.class.getName() + "-" + masterServices.getServerName());<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> setDaemon(true);<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> }<a name="line.778"></a> |
| <span class="sourceLineNo">779</span><a name="line.779"></a> |
| <span class="sourceLineNo">780</span> @Override<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> public void run() {<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> if (waitForGroupTableOnline()) {<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> LOG.info("GroupBasedLoadBalancer is now online");<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> } else {<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> LOG.warn("Quit without making region group table online");<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> }<a name="line.786"></a> |
| <span class="sourceLineNo">787</span> }<a name="line.787"></a> |
| <span class="sourceLineNo">788</span><a name="line.788"></a> |
| <span class="sourceLineNo">789</span> private boolean waitForGroupTableOnline() {<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> while (isMasterRunning(masterServices)) {<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> try {<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> TableStateManager tsm = masterServices.getTableStateManager();<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> if (!tsm.isTablePresent(RSGROUP_TABLE_NAME)) {<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> createRSGroupTable();<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> }<a name="line.795"></a> |
| <span class="sourceLineNo">796</span> // try reading from the table<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> FutureUtils.get(conn.getTable(RSGROUP_TABLE_NAME).get(new Get(ROW_KEY)));<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> LOG.info("RSGroup table={} is online, refreshing cached information", RSGROUP_TABLE_NAME);<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> RSGroupInfoManagerImpl.this.refresh(true);<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> online = true;<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> // flush any inconsistencies between ZK and HTable<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> RSGroupInfoManagerImpl.this.flushConfig();<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> // migrate after we are online.<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> migrate();<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> return true;<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> } catch (Exception e) {<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> LOG.warn("Failed to perform check", e);<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> // 100ms is short so let's just ignore the interrupt<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> Threads.sleepWithoutInterrupt(100);<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> }<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> }<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> return false;<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> }<a name="line.813"></a> |
| <span class="sourceLineNo">814</span><a name="line.814"></a> |
| <span class="sourceLineNo">815</span> private void createRSGroupTable() throws IOException {<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> OptionalLong optProcId = masterServices.getProcedures().stream()<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> .filter(p -> p instanceof CreateTableProcedure).map(p -> (CreateTableProcedure) p)<a name="line.817"></a> |
| <span class="sourceLineNo">818</span> .filter(p -> p.getTableName().equals(RSGROUP_TABLE_NAME)).mapToLong(Procedure::getProcId)<a name="line.818"></a> |
| <span class="sourceLineNo">819</span> .findFirst();<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> long procId;<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> if (optProcId.isPresent()) {<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> procId = optProcId.getAsLong();<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> } else {<a name="line.823"></a> |
| <span class="sourceLineNo">824</span> LOG.debug("Creating group table {}", RSGROUP_TABLE_NAME);<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> procId = masterServices.createSystemTable(RSGROUP_TABLE_DESC);<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> }<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> // wait for region to be online<a name="line.827"></a> |
| <span class="sourceLineNo">828</span> int tries = 600;<a name="line.828"></a> |
| <span class="sourceLineNo">829</span> while (<a name="line.829"></a> |
| <span class="sourceLineNo">830</span> !(masterServices.getMasterProcedureExecutor().isFinished(procId))<a name="line.830"></a> |
| <span class="sourceLineNo">831</span> && masterServices.getMasterProcedureExecutor().isRunning() && tries > 0<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> ) {<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> try {<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> Thread.sleep(100);<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> } catch (InterruptedException e) {<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> throw new IOException("Wait interrupted ", e);<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> }<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> tries--;<a name="line.838"></a> |
| <span class="sourceLineNo">839</span> }<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> if (tries <= 0) {<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> throw new IOException("Failed to create group table in a given time.");<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> } else {<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> Procedure<?> result = masterServices.getMasterProcedureExecutor().getResult(procId);<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> if (result != null && result.isFailed()) {<a name="line.844"></a> |
| <span class="sourceLineNo">845</span> throw new IOException(<a name="line.845"></a> |
| <span class="sourceLineNo">846</span> "Failed to create group table. " + MasterProcedureUtil.unwrapRemoteIOException(result));<a name="line.846"></a> |
| <span class="sourceLineNo">847</span> }<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> }<a name="line.848"></a> |
| <span class="sourceLineNo">849</span> }<a name="line.849"></a> |
| <span class="sourceLineNo">850</span><a name="line.850"></a> |
| <span class="sourceLineNo">851</span> public boolean isOnline() {<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> return online;<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> }<a name="line.853"></a> |
| <span class="sourceLineNo">854</span> }<a name="line.854"></a> |
| <span class="sourceLineNo">855</span><a name="line.855"></a> |
| <span class="sourceLineNo">856</span> private static boolean isMasterRunning(MasterServices masterServices) {<a name="line.856"></a> |
| <span class="sourceLineNo">857</span> return !masterServices.isAborted() && !masterServices.isStopped();<a name="line.857"></a> |
| <span class="sourceLineNo">858</span> }<a name="line.858"></a> |
| <span class="sourceLineNo">859</span><a name="line.859"></a> |
| <span class="sourceLineNo">860</span> private void multiMutate(List<Mutation> mutations) throws IOException {<a name="line.860"></a> |
| <span class="sourceLineNo">861</span> MutateRowsRequest.Builder builder = MutateRowsRequest.newBuilder();<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> for (Mutation mutation : mutations) {<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> if (mutation instanceof Put) {<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> builder<a name="line.864"></a> |
| <span class="sourceLineNo">865</span> .addMutationRequest(ProtobufUtil.toMutation(MutationProto.MutationType.PUT, mutation));<a name="line.865"></a> |
| <span class="sourceLineNo">866</span> } else if (mutation instanceof Delete) {<a name="line.866"></a> |
| <span class="sourceLineNo">867</span> builder<a name="line.867"></a> |
| <span class="sourceLineNo">868</span> .addMutationRequest(ProtobufUtil.toMutation(MutationProto.MutationType.DELETE, mutation));<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> } else {<a name="line.869"></a> |
| <span class="sourceLineNo">870</span> throw new DoNotRetryIOException(<a name="line.870"></a> |
| <span class="sourceLineNo">871</span> "multiMutate doesn't support " + mutation.getClass().getName());<a name="line.871"></a> |
| <span class="sourceLineNo">872</span> }<a name="line.872"></a> |
| <span class="sourceLineNo">873</span> }<a name="line.873"></a> |
| <span class="sourceLineNo">874</span> MutateRowsRequest request = builder.build();<a name="line.874"></a> |
| <span class="sourceLineNo">875</span> AsyncTable<?> table = conn.getTable(RSGROUP_TABLE_NAME);<a name="line.875"></a> |
| <span class="sourceLineNo">876</span> LOG.debug("Multimutating {} with {} mutations", RSGROUP_TABLE_NAME, mutations.size());<a name="line.876"></a> |
| <span class="sourceLineNo">877</span> FutureUtils.get(table.<MultiRowMutationService, MutateRowsResponse> coprocessorService(<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> MultiRowMutationService::newStub,<a name="line.878"></a> |
| <span class="sourceLineNo">879</span> (stub, controller, done) -> stub.mutateRows(controller, request, done), ROW_KEY));<a name="line.879"></a> |
| <span class="sourceLineNo">880</span> LOG.info("Multimutating {} with {} mutations done", RSGROUP_TABLE_NAME, mutations.size());<a name="line.880"></a> |
| <span class="sourceLineNo">881</span> }<a name="line.881"></a> |
| <span class="sourceLineNo">882</span><a name="line.882"></a> |
| <span class="sourceLineNo">883</span> private void checkGroupName(String groupName) throws ConstraintException {<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> if (!groupName.matches("[a-zA-Z0-9_]+")) {<a name="line.884"></a> |
| <span class="sourceLineNo">885</span> throw new ConstraintException("RSGroup name should only contain alphanumeric characters");<a name="line.885"></a> |
| <span class="sourceLineNo">886</span> }<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> }<a name="line.887"></a> |
| <span class="sourceLineNo">888</span><a name="line.888"></a> |
| <span class="sourceLineNo">889</span> @Override<a name="line.889"></a> |
| <span class="sourceLineNo">890</span> public RSGroupInfo getRSGroupForTable(TableName tableName) throws IOException {<a name="line.890"></a> |
| <span class="sourceLineNo">891</span> return holder.tableName2Group.get(tableName);<a name="line.891"></a> |
| <span class="sourceLineNo">892</span> }<a name="line.892"></a> |
| <span class="sourceLineNo">893</span><a name="line.893"></a> |
| <span class="sourceLineNo">894</span> /**<a name="line.894"></a> |
| <span class="sourceLineNo">895</span> * Check if the set of servers are belong to dead servers list or online servers list.<a name="line.895"></a> |
| <span class="sourceLineNo">896</span> * @param servers servers to remove<a name="line.896"></a> |
| <span class="sourceLineNo">897</span> */<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> private void checkForDeadOrOnlineServers(Set<Address> servers) throws IOException {<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> // This ugliness is because we only have Address, not ServerName.<a name="line.899"></a> |
| <span class="sourceLineNo">900</span> Set<Address> onlineServers = new HashSet<>();<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> List<ServerName> drainingServers = masterServices.getServerManager().getDrainingServersList();<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> for (ServerName server : masterServices.getServerManager().getOnlineServers().keySet()) {<a name="line.902"></a> |
| <span class="sourceLineNo">903</span> // Only online but not decommissioned servers are really online<a name="line.903"></a> |
| <span class="sourceLineNo">904</span> if (!drainingServers.contains(server)) {<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> onlineServers.add(server.getAddress());<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> }<a name="line.906"></a> |
| <span class="sourceLineNo">907</span> }<a name="line.907"></a> |
| <span class="sourceLineNo">908</span><a name="line.908"></a> |
| <span class="sourceLineNo">909</span> Set<Address> deadServers = new HashSet<>();<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> for (ServerName server : masterServices.getServerManager().getDeadServers().copyServerNames()) {<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> deadServers.add(server.getAddress());<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> }<a name="line.912"></a> |
| <span class="sourceLineNo">913</span><a name="line.913"></a> |
| <span class="sourceLineNo">914</span> for (Address address : servers) {<a name="line.914"></a> |
| <span class="sourceLineNo">915</span> if (onlineServers.contains(address)) {<a name="line.915"></a> |
| <span class="sourceLineNo">916</span> throw new DoNotRetryIOException(<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> "Server " + address + " is an online server, not allowed to remove.");<a name="line.917"></a> |
| <span class="sourceLineNo">918</span> }<a name="line.918"></a> |
| <span class="sourceLineNo">919</span> if (deadServers.contains(address)) {<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> throw new DoNotRetryIOException("Server " + address + " is on the dead servers list,"<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> + " Maybe it will come back again, not allowed to remove.");<a name="line.921"></a> |
| <span class="sourceLineNo">922</span> }<a name="line.922"></a> |
| <span class="sourceLineNo">923</span> }<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> }<a name="line.924"></a> |
| <span class="sourceLineNo">925</span><a name="line.925"></a> |
| <span class="sourceLineNo">926</span> private void checkOnlineServersOnly(Set<Address> servers) throws IOException {<a name="line.926"></a> |
| <span class="sourceLineNo">927</span> // This uglyness is because we only have Address, not ServerName.<a name="line.927"></a> |
| <span class="sourceLineNo">928</span> // Online servers are keyed by ServerName.<a name="line.928"></a> |
| <span class="sourceLineNo">929</span> Set<Address> onlineServers = new HashSet<>();<a name="line.929"></a> |
| <span class="sourceLineNo">930</span> for (ServerName server : masterServices.getServerManager().getOnlineServers().keySet()) {<a name="line.930"></a> |
| <span class="sourceLineNo">931</span> onlineServers.add(server.getAddress());<a name="line.931"></a> |
| <span class="sourceLineNo">932</span> }<a name="line.932"></a> |
| <span class="sourceLineNo">933</span> for (Address address : servers) {<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> if (!onlineServers.contains(address)) {<a name="line.934"></a> |
| <span class="sourceLineNo">935</span> throw new DoNotRetryIOException(<a name="line.935"></a> |
| <span class="sourceLineNo">936</span> "Server " + address + " is not an online server in 'default' RSGroup.");<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> }<a name="line.937"></a> |
| <span class="sourceLineNo">938</span> }<a name="line.938"></a> |
| <span class="sourceLineNo">939</span> }<a name="line.939"></a> |
| <span class="sourceLineNo">940</span><a name="line.940"></a> |
| <span class="sourceLineNo">941</span> /** Returns List of Regions associated with this <code>server</code>. */<a name="line.941"></a> |
| <span class="sourceLineNo">942</span> private List<RegionInfo> getRegions(final Address server) {<a name="line.942"></a> |
| <span class="sourceLineNo">943</span> LinkedList<RegionInfo> regions = new LinkedList<>();<a name="line.943"></a> |
| <span class="sourceLineNo">944</span> for (Map.Entry<RegionInfo, ServerName> el : masterServices.getAssignmentManager()<a name="line.944"></a> |
| <span class="sourceLineNo">945</span> .getRegionStates().getRegionAssignments().entrySet()) {<a name="line.945"></a> |
| <span class="sourceLineNo">946</span> if (el.getValue() == null) {<a name="line.946"></a> |
| <span class="sourceLineNo">947</span> continue;<a name="line.947"></a> |
| <span class="sourceLineNo">948</span> }<a name="line.948"></a> |
| <span class="sourceLineNo">949</span><a name="line.949"></a> |
| <span class="sourceLineNo">950</span> if (el.getValue().getAddress().equals(server)) {<a name="line.950"></a> |
| <span class="sourceLineNo">951</span> addRegion(regions, el.getKey());<a name="line.951"></a> |
| <span class="sourceLineNo">952</span> }<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> }<a name="line.953"></a> |
| <span class="sourceLineNo">954</span> for (RegionStateNode state : masterServices.getAssignmentManager().getRegionsInTransition()) {<a name="line.954"></a> |
| <span class="sourceLineNo">955</span> if (<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> state.getRegionLocation() != null && state.getRegionLocation().getAddress().equals(server)<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> ) {<a name="line.957"></a> |
| <span class="sourceLineNo">958</span> addRegion(regions, state.getRegionInfo());<a name="line.958"></a> |
| <span class="sourceLineNo">959</span> }<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> }<a name="line.960"></a> |
| <span class="sourceLineNo">961</span> return regions;<a name="line.961"></a> |
| <span class="sourceLineNo">962</span> }<a name="line.962"></a> |
| <span class="sourceLineNo">963</span><a name="line.963"></a> |
| <span class="sourceLineNo">964</span> private void addRegion(final LinkedList<RegionInfo> regions, RegionInfo hri) {<a name="line.964"></a> |
| <span class="sourceLineNo">965</span> // If meta, move it last otherwise other unassigns fail because meta is not<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> // online for them to update state in. This is dodgy. Needs to be made more<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> // robust. See TODO below.<a name="line.967"></a> |
| <span class="sourceLineNo">968</span> if (hri.isMetaRegion()) {<a name="line.968"></a> |
| <span class="sourceLineNo">969</span> regions.addLast(hri);<a name="line.969"></a> |
| <span class="sourceLineNo">970</span> } else {<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> regions.addFirst(hri);<a name="line.971"></a> |
| <span class="sourceLineNo">972</span> }<a name="line.972"></a> |
| <span class="sourceLineNo">973</span> }<a name="line.973"></a> |
| <span class="sourceLineNo">974</span><a name="line.974"></a> |
| <span class="sourceLineNo">975</span> /**<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> * Move every region from servers which are currently located on these servers, but should not be<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> * located there.<a name="line.977"></a> |
| <span class="sourceLineNo">978</span> * @param movedServers the servers that are moved to new group<a name="line.978"></a> |
| <span class="sourceLineNo">979</span> * @param srcGrpServers all servers in the source group, excluding the movedServers<a name="line.979"></a> |
| <span class="sourceLineNo">980</span> * @param targetGroupName the target group<a name="line.980"></a> |
| <span class="sourceLineNo">981</span> * @param sourceGroupName the source group<a name="line.981"></a> |
| <span class="sourceLineNo">982</span> * @throws IOException if moving the server and tables fail<a name="line.982"></a> |
| <span class="sourceLineNo">983</span> */<a name="line.983"></a> |
| <span class="sourceLineNo">984</span> private void moveServerRegionsFromGroup(Set<Address> movedServers, Set<Address> srcGrpServers,<a name="line.984"></a> |
| <span class="sourceLineNo">985</span> String targetGroupName, String sourceGroupName) throws IOException {<a name="line.985"></a> |
| <span class="sourceLineNo">986</span> moveRegionsBetweenGroups(movedServers, srcGrpServers, targetGroupName, sourceGroupName,<a name="line.986"></a> |
| <span class="sourceLineNo">987</span> rs -> getRegions(rs), info -> {<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> try {<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> String groupName = RSGroupUtil.getRSGroupInfo(masterServices, this, info.getTable())<a name="line.989"></a> |
| <span class="sourceLineNo">990</span> .map(RSGroupInfo::getName).orElse(RSGroupInfo.DEFAULT_GROUP);<a name="line.990"></a> |
| <span class="sourceLineNo">991</span> return groupName.equals(targetGroupName);<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> } catch (IOException e) {<a name="line.992"></a> |
| <span class="sourceLineNo">993</span> LOG.warn("Failed to test group for region {} and target group {}", info, targetGroupName);<a name="line.993"></a> |
| <span class="sourceLineNo">994</span> return false;<a name="line.994"></a> |
| <span class="sourceLineNo">995</span> }<a name="line.995"></a> |
| <span class="sourceLineNo">996</span> });<a name="line.996"></a> |
| <span class="sourceLineNo">997</span> }<a name="line.997"></a> |
| <span class="sourceLineNo">998</span><a name="line.998"></a> |
| <span class="sourceLineNo">999</span> private <T> void moveRegionsBetweenGroups(Set<T> regionsOwners, Set<Address> newRegionsOwners,<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> String targetGroupName, String sourceGroupName, Function<T, List<RegionInfo>> getRegionsInfo,<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span> Function<RegionInfo, Boolean> validation) throws IOException {<a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> // Get server names corresponding to given Addresses<a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> List<ServerName> movedServerNames = new ArrayList<>(regionsOwners.size());<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span> List<ServerName> srcGrpServerNames = new ArrayList<>(newRegionsOwners.size());<a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span> for (ServerName serverName : masterServices.getServerManager().getOnlineServers().keySet()) {<a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span> // In case region move failed in previous attempt, regionsOwners and newRegionsOwners<a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span> // can have the same servers. So for all servers below both conditions to be checked<a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> if (newRegionsOwners.contains(serverName.getAddress())) {<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> srcGrpServerNames.add(serverName);<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> }<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span> if (regionsOwners.contains(serverName.getAddress())) {<a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span> movedServerNames.add(serverName);<a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span> }<a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> }<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> List<Pair<RegionInfo, Future<byte[]>>> assignmentFutures = new ArrayList<>();<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span> int retry = 0;<a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span> Set<String> failedRegions = new HashSet<>();<a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span> IOException toThrow = null;<a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> do {<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span> assignmentFutures.clear();<a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span> failedRegions.clear();<a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> for (ServerName owner : movedServerNames) {<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> // Get regions that are associated with this server and filter regions by group tables.<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span> for (RegionInfo region : getRegionsInfo.apply((T) owner.getAddress())) {<a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span> if (!validation.apply(region)) {<a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> LOG.info("Moving region {}, which does not belong to RSGroup {}",<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> region.getShortNameToLog(), targetGroupName);<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span> // Move region back to source RSGroup servers<a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span> ServerName dest =<a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span> masterServices.getLoadBalancer().randomAssignment(region, srcGrpServerNames);<a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span> if (dest == null) {<a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> failedRegions.add(region.getRegionNameAsString());<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> continue;<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span> }<a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span> RegionPlan rp = new RegionPlan(region, owner, dest);<a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span> try {<a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> Future<byte[]> future = masterServices.getAssignmentManager().moveAsync(rp);<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> assignmentFutures.add(Pair.newPair(region, future));<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> } catch (IOException ioe) {<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> failedRegions.add(region.getRegionNameAsString());<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span> LOG.debug("Move region {} failed, will retry, current retry time is {}",<a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span> region.getShortNameToLog(), retry, ioe);<a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> toThrow = ioe;<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> }<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span> }<a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> }<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> }<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> waitForRegionMovement(assignmentFutures, failedRegions, sourceGroupName, retry);<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span> if (failedRegions.isEmpty()) {<a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> LOG.info("All regions from {} are moved back to {}", movedServerNames, sourceGroupName);<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> return;<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> } else {<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span> try {<a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> wait(1000);<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span> } catch (InterruptedException e) {<a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span> LOG.warn("Sleep interrupted", e);<a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> Thread.currentThread().interrupt();<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> }<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> retry++;<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> }<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span> } while (<a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> !failedRegions.isEmpty() && retry <= masterServices.getConfiguration()<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span> .getInt(FAILED_MOVE_MAX_RETRY, DEFAULT_MAX_RETRY_VALUE)<a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> );<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span><a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span> // has up to max retry time or there are no more regions to move<a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> if (!failedRegions.isEmpty()) {<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> // print failed moved regions, for later process conveniently<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span> String msg = String.format("move regions for group %s failed, failed regions: %s",<a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> sourceGroupName, failedRegions);<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> LOG.error(msg);<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> throw new DoNotRetryIOException(<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> msg + ", just record the last failed region's cause, more details in server log", toThrow);<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span> }<a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> }<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span><a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span> /**<a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span> * Wait for all the region move to complete. Keep waiting for other region movement completion<a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> * even if some region movement fails.<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> */<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span> private void waitForRegionMovement(List<Pair<RegionInfo, Future<byte[]>>> regionMoveFutures,<a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span> Set<String> failedRegions, String sourceGroupName, int retryCount) {<a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span> LOG.info("Moving {} region(s) to group {}, current retry={}", regionMoveFutures.size(),<a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> sourceGroupName, retryCount);<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span> for (Pair<RegionInfo, Future<byte[]>> pair : regionMoveFutures) {<a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span> try {<a name="line.1086"></a> |
| <span class="sourceLineNo">1087</span> pair.getSecond().get();<a name="line.1087"></a> |
| <span class="sourceLineNo">1088</span> if (<a name="line.1088"></a> |
| <span class="sourceLineNo">1089</span> masterServices.getAssignmentManager().getRegionStates().getRegionState(pair.getFirst())<a name="line.1089"></a> |
| <span class="sourceLineNo">1090</span> .isFailedOpen()<a name="line.1090"></a> |
| <span class="sourceLineNo">1091</span> ) {<a name="line.1091"></a> |
| <span class="sourceLineNo">1092</span> failedRegions.add(pair.getFirst().getRegionNameAsString());<a name="line.1092"></a> |
| <span class="sourceLineNo">1093</span> }<a name="line.1093"></a> |
| <span class="sourceLineNo">1094</span> } catch (InterruptedException e) {<a name="line.1094"></a> |
| <span class="sourceLineNo">1095</span> // Dont return form there lets wait for other regions to complete movement.<a name="line.1095"></a> |
| <span class="sourceLineNo">1096</span> failedRegions.add(pair.getFirst().getRegionNameAsString());<a name="line.1096"></a> |
| <span class="sourceLineNo">1097</span> LOG.warn("Sleep interrupted", e);<a name="line.1097"></a> |
| <span class="sourceLineNo">1098</span> } catch (Exception e) {<a name="line.1098"></a> |
| <span class="sourceLineNo">1099</span> failedRegions.add(pair.getFirst().getRegionNameAsString());<a name="line.1099"></a> |
| <span class="sourceLineNo">1100</span> LOG.error("Move region {} to group {} failed, will retry on next attempt",<a name="line.1100"></a> |
| <span class="sourceLineNo">1101</span> pair.getFirst().getShortNameToLog(), sourceGroupName, e);<a name="line.1101"></a> |
| <span class="sourceLineNo">1102</span> }<a name="line.1102"></a> |
| <span class="sourceLineNo">1103</span> }<a name="line.1103"></a> |
| <span class="sourceLineNo">1104</span> }<a name="line.1104"></a> |
| <span class="sourceLineNo">1105</span><a name="line.1105"></a> |
| <span class="sourceLineNo">1106</span> private boolean isTableInGroup(TableName tableName, String groupName,<a name="line.1106"></a> |
| <span class="sourceLineNo">1107</span> Set<TableName> tablesInGroupCache) throws IOException {<a name="line.1107"></a> |
| <span class="sourceLineNo">1108</span> if (tablesInGroupCache.contains(tableName)) {<a name="line.1108"></a> |
| <span class="sourceLineNo">1109</span> return true;<a name="line.1109"></a> |
| <span class="sourceLineNo">1110</span> }<a name="line.1110"></a> |
| <span class="sourceLineNo">1111</span> if (<a name="line.1111"></a> |
| <span class="sourceLineNo">1112</span> RSGroupUtil.getRSGroupInfo(masterServices, this, tableName).map(RSGroupInfo::getName)<a name="line.1112"></a> |
| <span class="sourceLineNo">1113</span> .orElse(RSGroupInfo.DEFAULT_GROUP).equals(groupName)<a name="line.1113"></a> |
| <span class="sourceLineNo">1114</span> ) {<a name="line.1114"></a> |
| <span class="sourceLineNo">1115</span> tablesInGroupCache.add(tableName);<a name="line.1115"></a> |
| <span class="sourceLineNo">1116</span> return true;<a name="line.1116"></a> |
| <span class="sourceLineNo">1117</span> }<a name="line.1117"></a> |
| <span class="sourceLineNo">1118</span> return false;<a name="line.1118"></a> |
| <span class="sourceLineNo">1119</span> }<a name="line.1119"></a> |
| <span class="sourceLineNo">1120</span><a name="line.1120"></a> |
| <span class="sourceLineNo">1121</span> private Map<String, RegionState> rsGroupGetRegionsInTransition(String groupName)<a name="line.1121"></a> |
| <span class="sourceLineNo">1122</span> throws IOException {<a name="line.1122"></a> |
| <span class="sourceLineNo">1123</span> Map<String, RegionState> rit = Maps.newTreeMap();<a name="line.1123"></a> |
| <span class="sourceLineNo">1124</span> Set<TableName> tablesInGroupCache = new HashSet<>();<a name="line.1124"></a> |
| <span class="sourceLineNo">1125</span> for (RegionStateNode regionNode : masterServices.getAssignmentManager()<a name="line.1125"></a> |
| <span class="sourceLineNo">1126</span> .getRegionsInTransition()) {<a name="line.1126"></a> |
| <span class="sourceLineNo">1127</span> TableName tn = regionNode.getTable();<a name="line.1127"></a> |
| <span class="sourceLineNo">1128</span> if (isTableInGroup(tn, groupName, tablesInGroupCache)) {<a name="line.1128"></a> |
| <span class="sourceLineNo">1129</span> rit.put(regionNode.getRegionInfo().getEncodedName(), regionNode.toRegionState());<a name="line.1129"></a> |
| <span class="sourceLineNo">1130</span> }<a name="line.1130"></a> |
| <span class="sourceLineNo">1131</span> }<a name="line.1131"></a> |
| <span class="sourceLineNo">1132</span> return rit;<a name="line.1132"></a> |
| <span class="sourceLineNo">1133</span> }<a name="line.1133"></a> |
| <span class="sourceLineNo">1134</span><a name="line.1134"></a> |
| <span class="sourceLineNo">1135</span> /**<a name="line.1135"></a> |
| <span class="sourceLineNo">1136</span> * This is an EXPENSIVE clone. Cloning though is the safest thing to do. Can't let out original<a name="line.1136"></a> |
| <span class="sourceLineNo">1137</span> * since it can change and at least the load balancer wants to iterate this exported list. Load<a name="line.1137"></a> |
| <span class="sourceLineNo">1138</span> * balancer should iterate over this list because cloned list will ignore disabled table and split<a name="line.1138"></a> |
| <span class="sourceLineNo">1139</span> * parent region cases. This method is invoked by {@link #balanceRSGroup}<a name="line.1139"></a> |
| <span class="sourceLineNo">1140</span> * @return A clone of current assignments for this group.<a name="line.1140"></a> |
| <span class="sourceLineNo">1141</span> */<a name="line.1141"></a> |
| <span class="sourceLineNo">1142</span> Map<TableName, Map<ServerName, List<RegionInfo>>> getRSGroupAssignmentsByTable(<a name="line.1142"></a> |
| <span class="sourceLineNo">1143</span> TableStateManager tableStateManager, String groupName) throws IOException {<a name="line.1143"></a> |
| <span class="sourceLineNo">1144</span> Map<TableName, Map<ServerName, List<RegionInfo>>> result = Maps.newHashMap();<a name="line.1144"></a> |
| <span class="sourceLineNo">1145</span> Set<TableName> tablesInGroupCache = new HashSet<>();<a name="line.1145"></a> |
| <span class="sourceLineNo">1146</span> for (Map.Entry<RegionInfo, ServerName> entry : masterServices.getAssignmentManager()<a name="line.1146"></a> |
| <span class="sourceLineNo">1147</span> .getRegionStates().getRegionAssignments().entrySet()) {<a name="line.1147"></a> |
| <span class="sourceLineNo">1148</span> RegionInfo region = entry.getKey();<a name="line.1148"></a> |
| <span class="sourceLineNo">1149</span> TableName tn = region.getTable();<a name="line.1149"></a> |
| <span class="sourceLineNo">1150</span> ServerName server = entry.getValue();<a name="line.1150"></a> |
| <span class="sourceLineNo">1151</span> if (isTableInGroup(tn, groupName, tablesInGroupCache)) {<a name="line.1151"></a> |
| <span class="sourceLineNo">1152</span> if (<a name="line.1152"></a> |
| <span class="sourceLineNo">1153</span> tableStateManager.isTableState(tn, TableState.State.DISABLED, TableState.State.DISABLING)<a name="line.1153"></a> |
| <span class="sourceLineNo">1154</span> ) {<a name="line.1154"></a> |
| <span class="sourceLineNo">1155</span> continue;<a name="line.1155"></a> |
| <span class="sourceLineNo">1156</span> }<a name="line.1156"></a> |
| <span class="sourceLineNo">1157</span> if (region.isSplitParent()) {<a name="line.1157"></a> |
| <span class="sourceLineNo">1158</span> continue;<a name="line.1158"></a> |
| <span class="sourceLineNo">1159</span> }<a name="line.1159"></a> |
| <span class="sourceLineNo">1160</span> result.computeIfAbsent(tn, k -> new HashMap<>())<a name="line.1160"></a> |
| <span class="sourceLineNo">1161</span> .computeIfAbsent(server, k -> new ArrayList<>()).add(region);<a name="line.1161"></a> |
| <span class="sourceLineNo">1162</span> }<a name="line.1162"></a> |
| <span class="sourceLineNo">1163</span> }<a name="line.1163"></a> |
| <span class="sourceLineNo">1164</span> RSGroupInfo rsGroupInfo = getRSGroupInfo(groupName);<a name="line.1164"></a> |
| <span class="sourceLineNo">1165</span> for (ServerName serverName : masterServices.getServerManager().getOnlineServers().keySet()) {<a name="line.1165"></a> |
| <span class="sourceLineNo">1166</span> if (rsGroupInfo.containsServer(serverName.getAddress())) {<a name="line.1166"></a> |
| <span class="sourceLineNo">1167</span> for (Map<ServerName, List<RegionInfo>> map : result.values()) {<a name="line.1167"></a> |
| <span class="sourceLineNo">1168</span> map.computeIfAbsent(serverName, k -> Collections.emptyList());<a name="line.1168"></a> |
| <span class="sourceLineNo">1169</span> }<a name="line.1169"></a> |
| <span class="sourceLineNo">1170</span> }<a name="line.1170"></a> |
| <span class="sourceLineNo">1171</span> }<a name="line.1171"></a> |
| <span class="sourceLineNo">1172</span> return result;<a name="line.1172"></a> |
| <span class="sourceLineNo">1173</span> }<a name="line.1173"></a> |
| <span class="sourceLineNo">1174</span><a name="line.1174"></a> |
| <span class="sourceLineNo">1175</span> @Override<a name="line.1175"></a> |
| <span class="sourceLineNo">1176</span> public BalanceResponse balanceRSGroup(String groupName, BalanceRequest request)<a name="line.1176"></a> |
| <span class="sourceLineNo">1177</span> throws IOException {<a name="line.1177"></a> |
| <span class="sourceLineNo">1178</span> ServerManager serverManager = masterServices.getServerManager();<a name="line.1178"></a> |
| <span class="sourceLineNo">1179</span> LoadBalancer balancer = masterServices.getLoadBalancer();<a name="line.1179"></a> |
| <span class="sourceLineNo">1180</span> getRSGroupInfo(groupName);<a name="line.1180"></a> |
| <span class="sourceLineNo">1181</span><a name="line.1181"></a> |
| <span class="sourceLineNo">1182</span> BalanceResponse.Builder responseBuilder = BalanceResponse.newBuilder();<a name="line.1182"></a> |
| <span class="sourceLineNo">1183</span><a name="line.1183"></a> |
| <span class="sourceLineNo">1184</span> synchronized (balancer) {<a name="line.1184"></a> |
| <span class="sourceLineNo">1185</span> // If balance not true, don't run balancer.<a name="line.1185"></a> |
| <span class="sourceLineNo">1186</span> if (!masterServices.isBalancerOn() && !request.isDryRun()) {<a name="line.1186"></a> |
| <span class="sourceLineNo">1187</span> return responseBuilder.build();<a name="line.1187"></a> |
| <span class="sourceLineNo">1188</span> }<a name="line.1188"></a> |
| <span class="sourceLineNo">1189</span><a name="line.1189"></a> |
| <span class="sourceLineNo">1190</span> // Only allow one balance run at at time.<a name="line.1190"></a> |
| <span class="sourceLineNo">1191</span> Map<String, RegionState> groupRIT = rsGroupGetRegionsInTransition(groupName);<a name="line.1191"></a> |
| <span class="sourceLineNo">1192</span> if (groupRIT.size() > 0 && !request.isIgnoreRegionsInTransition()) {<a name="line.1192"></a> |
| <span class="sourceLineNo">1193</span> LOG.debug("Not running balancer because {} region(s) in transition: {}", groupRIT.size(),<a name="line.1193"></a> |
| <span class="sourceLineNo">1194</span> StringUtils.abbreviate(masterServices.getAssignmentManager().getRegionStates()<a name="line.1194"></a> |
| <span class="sourceLineNo">1195</span> .getRegionsInTransition().toString(), 256));<a name="line.1195"></a> |
| <span class="sourceLineNo">1196</span> return responseBuilder.build();<a name="line.1196"></a> |
| <span class="sourceLineNo">1197</span> }<a name="line.1197"></a> |
| <span class="sourceLineNo">1198</span><a name="line.1198"></a> |
| <span class="sourceLineNo">1199</span> if (serverManager.areDeadServersInProgress()) {<a name="line.1199"></a> |
| <span class="sourceLineNo">1200</span> LOG.debug("Not running balancer because processing dead regionserver(s): {}",<a name="line.1200"></a> |
| <span class="sourceLineNo">1201</span> serverManager.getDeadServers());<a name="line.1201"></a> |
| <span class="sourceLineNo">1202</span> return responseBuilder.build();<a name="line.1202"></a> |
| <span class="sourceLineNo">1203</span> }<a name="line.1203"></a> |
| <span class="sourceLineNo">1204</span><a name="line.1204"></a> |
| <span class="sourceLineNo">1205</span> // We balance per group instead of per table<a name="line.1205"></a> |
| <span class="sourceLineNo">1206</span> Map<TableName, Map<ServerName, List<RegionInfo>>> assignmentsByTable =<a name="line.1206"></a> |
| <span class="sourceLineNo">1207</span> getRSGroupAssignmentsByTable(masterServices.getTableStateManager(), groupName);<a name="line.1207"></a> |
| <span class="sourceLineNo">1208</span> List<RegionPlan> plans = balancer.balanceCluster(assignmentsByTable);<a name="line.1208"></a> |
| <span class="sourceLineNo">1209</span> boolean balancerRan = !plans.isEmpty();<a name="line.1209"></a> |
| <span class="sourceLineNo">1210</span><a name="line.1210"></a> |
| <span class="sourceLineNo">1211</span> responseBuilder.setBalancerRan(balancerRan).setMovesCalculated(plans.size());<a name="line.1211"></a> |
| <span class="sourceLineNo">1212</span><a name="line.1212"></a> |
| <span class="sourceLineNo">1213</span> if (balancerRan && !request.isDryRun()) {<a name="line.1213"></a> |
| <span class="sourceLineNo">1214</span> LOG.info("RSGroup balance {} starting with plan count: {}", groupName, plans.size());<a name="line.1214"></a> |
| <span class="sourceLineNo">1215</span> List<RegionPlan> executed = masterServices.executeRegionPlansWithThrottling(plans);<a name="line.1215"></a> |
| <span class="sourceLineNo">1216</span> responseBuilder.setMovesExecuted(executed.size());<a name="line.1216"></a> |
| <span class="sourceLineNo">1217</span> LOG.info("RSGroup balance " + groupName + " completed");<a name="line.1217"></a> |
| <span class="sourceLineNo">1218</span> }<a name="line.1218"></a> |
| <span class="sourceLineNo">1219</span><a name="line.1219"></a> |
| <span class="sourceLineNo">1220</span> return responseBuilder.build();<a name="line.1220"></a> |
| <span class="sourceLineNo">1221</span> }<a name="line.1221"></a> |
| <span class="sourceLineNo">1222</span> }<a name="line.1222"></a> |
| <span class="sourceLineNo">1223</span><a name="line.1223"></a> |
| <span class="sourceLineNo">1224</span> private void moveTablesAndWait(Set<TableName> tables, String targetGroup) throws IOException {<a name="line.1224"></a> |
| <span class="sourceLineNo">1225</span> LOG.debug("Moving {} tables to target group {}", tables.size(), targetGroup);<a name="line.1225"></a> |
| <span class="sourceLineNo">1226</span> List<Long> procIds = new ArrayList<Long>();<a name="line.1226"></a> |
| <span class="sourceLineNo">1227</span> for (TableName tableName : tables) {<a name="line.1227"></a> |
| <span class="sourceLineNo">1228</span> TableDescriptor oldTd = masterServices.getTableDescriptors().get(tableName);<a name="line.1228"></a> |
| <span class="sourceLineNo">1229</span> if (oldTd == null) {<a name="line.1229"></a> |
| <span class="sourceLineNo">1230</span> continue;<a name="line.1230"></a> |
| <span class="sourceLineNo">1231</span> }<a name="line.1231"></a> |
| <span class="sourceLineNo">1232</span> TableDescriptor newTd =<a name="line.1232"></a> |
| <span class="sourceLineNo">1233</span> TableDescriptorBuilder.newBuilder(oldTd).setRegionServerGroup(targetGroup).build();<a name="line.1233"></a> |
| <span class="sourceLineNo">1234</span> procIds.add(<a name="line.1234"></a> |
| <span class="sourceLineNo">1235</span> masterServices.modifyTable(tableName, newTd, HConstants.NO_NONCE, HConstants.NO_NONCE));<a name="line.1235"></a> |
| <span class="sourceLineNo">1236</span> }<a name="line.1236"></a> |
| <span class="sourceLineNo">1237</span> for (long procId : procIds) {<a name="line.1237"></a> |
| <span class="sourceLineNo">1238</span> Procedure<?> proc = masterServices.getMasterProcedureExecutor().getProcedure(procId);<a name="line.1238"></a> |
| <span class="sourceLineNo">1239</span> if (proc == null) {<a name="line.1239"></a> |
| <span class="sourceLineNo">1240</span> continue;<a name="line.1240"></a> |
| <span class="sourceLineNo">1241</span> }<a name="line.1241"></a> |
| <span class="sourceLineNo">1242</span> ProcedureSyncWait.waitForProcedureToCompleteIOE(masterServices.getMasterProcedureExecutor(),<a name="line.1242"></a> |
| <span class="sourceLineNo">1243</span> proc, Long.MAX_VALUE);<a name="line.1243"></a> |
| <span class="sourceLineNo">1244</span> }<a name="line.1244"></a> |
| <span class="sourceLineNo">1245</span> LOG.info("Move tables done: moved {} tables to {}", tables.size(), targetGroup);<a name="line.1245"></a> |
| <span class="sourceLineNo">1246</span> if (LOG.isDebugEnabled()) {<a name="line.1246"></a> |
| <span class="sourceLineNo">1247</span> LOG.debug("Tables moved to {}: {}", targetGroup, tables);<a name="line.1247"></a> |
| <span class="sourceLineNo">1248</span> }<a name="line.1248"></a> |
| <span class="sourceLineNo">1249</span> }<a name="line.1249"></a> |
| <span class="sourceLineNo">1250</span><a name="line.1250"></a> |
| <span class="sourceLineNo">1251</span> @Override<a name="line.1251"></a> |
| <span class="sourceLineNo">1252</span> public void setRSGroup(Set<TableName> tables, String groupName) throws IOException {<a name="line.1252"></a> |
| <span class="sourceLineNo">1253</span> getRSGroupInfo(groupName);<a name="line.1253"></a> |
| <span class="sourceLineNo">1254</span> moveTablesAndWait(tables, groupName);<a name="line.1254"></a> |
| <span class="sourceLineNo">1255</span> }<a name="line.1255"></a> |
| <span class="sourceLineNo">1256</span><a name="line.1256"></a> |
| <span class="sourceLineNo">1257</span> public void moveServers(Set<Address> servers, String targetGroupName) throws IOException {<a name="line.1257"></a> |
| <span class="sourceLineNo">1258</span> if (servers == null) {<a name="line.1258"></a> |
| <span class="sourceLineNo">1259</span> throw new ConstraintException("The list of servers to move cannot be null.");<a name="line.1259"></a> |
| <span class="sourceLineNo">1260</span> }<a name="line.1260"></a> |
| <span class="sourceLineNo">1261</span> if (servers.isEmpty()) {<a name="line.1261"></a> |
| <span class="sourceLineNo">1262</span> // For some reason this difference between null servers and isEmpty is important distinction.<a name="line.1262"></a> |
| <span class="sourceLineNo">1263</span> // TODO. Why? Stuff breaks if I equate them.<a name="line.1263"></a> |
| <span class="sourceLineNo">1264</span> return;<a name="line.1264"></a> |
| <span class="sourceLineNo">1265</span> }<a name="line.1265"></a> |
| <span class="sourceLineNo">1266</span> if (StringUtils.isEmpty(targetGroupName)) {<a name="line.1266"></a> |
| <span class="sourceLineNo">1267</span> throw new ConstraintException("RSGroup cannot be null.");<a name="line.1267"></a> |
| <span class="sourceLineNo">1268</span> }<a name="line.1268"></a> |
| <span class="sourceLineNo">1269</span><a name="line.1269"></a> |
| <span class="sourceLineNo">1270</span> // Hold a lock on the manager instance while moving servers to prevent<a name="line.1270"></a> |
| <span class="sourceLineNo">1271</span> // another writer changing our state while we are working.<a name="line.1271"></a> |
| <span class="sourceLineNo">1272</span> synchronized (this) {<a name="line.1272"></a> |
| <span class="sourceLineNo">1273</span> // Presume first server's source group. Later ensure all servers are from this group.<a name="line.1273"></a> |
| <span class="sourceLineNo">1274</span> Address firstServer = servers.iterator().next();<a name="line.1274"></a> |
| <span class="sourceLineNo">1275</span> RSGroupInfo srcGrp = getRSGroupOfServer(firstServer);<a name="line.1275"></a> |
| <span class="sourceLineNo">1276</span> if (srcGrp == null) {<a name="line.1276"></a> |
| <span class="sourceLineNo">1277</span> // Be careful. This exception message is tested for in TestRSGroupAdmin2...<a name="line.1277"></a> |
| <span class="sourceLineNo">1278</span> throw new ConstraintException(<a name="line.1278"></a> |
| <span class="sourceLineNo">1279</span> "Server " + firstServer + " is either offline or it does not exist.");<a name="line.1279"></a> |
| <span class="sourceLineNo">1280</span> }<a name="line.1280"></a> |
| <span class="sourceLineNo">1281</span><a name="line.1281"></a> |
| <span class="sourceLineNo">1282</span> // Only move online servers (when moving from 'default') or servers from other<a name="line.1282"></a> |
| <span class="sourceLineNo">1283</span> // groups. This prevents bogus servers from entering groups<a name="line.1283"></a> |
| <span class="sourceLineNo">1284</span> if (RSGroupInfo.DEFAULT_GROUP.equals(srcGrp.getName())) {<a name="line.1284"></a> |
| <span class="sourceLineNo">1285</span> if (srcGrp.getServers().size() <= servers.size()) {<a name="line.1285"></a> |
| <span class="sourceLineNo">1286</span> throw new ConstraintException(KEEP_ONE_SERVER_IN_DEFAULT_ERROR_MESSAGE);<a name="line.1286"></a> |
| <span class="sourceLineNo">1287</span> }<a name="line.1287"></a> |
| <span class="sourceLineNo">1288</span> checkOnlineServersOnly(servers);<a name="line.1288"></a> |
| <span class="sourceLineNo">1289</span> }<a name="line.1289"></a> |
| <span class="sourceLineNo">1290</span> // Ensure all servers are of same rsgroup.<a name="line.1290"></a> |
| <span class="sourceLineNo">1291</span> for (Address server : servers) {<a name="line.1291"></a> |
| <span class="sourceLineNo">1292</span> String tmpGroup = getRSGroupOfServer(server).getName();<a name="line.1292"></a> |
| <span class="sourceLineNo">1293</span> if (!tmpGroup.equals(srcGrp.getName())) {<a name="line.1293"></a> |
| <span class="sourceLineNo">1294</span> throw new ConstraintException("Move server request should only come from one source "<a name="line.1294"></a> |
| <span class="sourceLineNo">1295</span> + "RSGroup. Expecting only " + srcGrp.getName() + " but contains " + tmpGroup);<a name="line.1295"></a> |
| <span class="sourceLineNo">1296</span> }<a name="line.1296"></a> |
| <span class="sourceLineNo">1297</span> }<a name="line.1297"></a> |
| <span class="sourceLineNo">1298</span> if (srcGrp.getServers().size() <= servers.size()) {<a name="line.1298"></a> |
| <span class="sourceLineNo">1299</span> // check if there are still tables reference this group<a name="line.1299"></a> |
| <span class="sourceLineNo">1300</span> for (TableDescriptor td : masterServices.getTableDescriptors().getAll().values()) {<a name="line.1300"></a> |
| <span class="sourceLineNo">1301</span> Optional<String> optGroupName = td.getRegionServerGroup();<a name="line.1301"></a> |
| <span class="sourceLineNo">1302</span> if (optGroupName.isPresent() && optGroupName.get().equals(srcGrp.getName())) {<a name="line.1302"></a> |
| <span class="sourceLineNo">1303</span> throw new ConstraintException(<a name="line.1303"></a> |
| <span class="sourceLineNo">1304</span> "Cannot leave a RSGroup " + srcGrp.getName() + " that contains tables('"<a name="line.1304"></a> |
| <span class="sourceLineNo">1305</span> + td.getTableName() + "' at least) without servers to host them.");<a name="line.1305"></a> |
| <span class="sourceLineNo">1306</span> }<a name="line.1306"></a> |
| <span class="sourceLineNo">1307</span> }<a name="line.1307"></a> |
| <span class="sourceLineNo">1308</span> }<a name="line.1308"></a> |
| <span class="sourceLineNo">1309</span><a name="line.1309"></a> |
| <span class="sourceLineNo">1310</span> // MovedServers may be < passed in 'servers'.<a name="line.1310"></a> |
| <span class="sourceLineNo">1311</span> Set<Address> movedServers = moveServers(servers, srcGrp.getName(), targetGroupName);<a name="line.1311"></a> |
| <span class="sourceLineNo">1312</span> moveServerRegionsFromGroup(movedServers, srcGrp.getServers(), targetGroupName,<a name="line.1312"></a> |
| <span class="sourceLineNo">1313</span> srcGrp.getName());<a name="line.1313"></a> |
| <span class="sourceLineNo">1314</span> LOG.info("Move servers done: moved {} servers from {} to {}", movedServers.size(),<a name="line.1314"></a> |
| <span class="sourceLineNo">1315</span> srcGrp.getName(), targetGroupName);<a name="line.1315"></a> |
| <span class="sourceLineNo">1316</span> if (LOG.isDebugEnabled()) {<a name="line.1316"></a> |
| <span class="sourceLineNo">1317</span> LOG.debug("Servers moved from {} to {}: {}", srcGrp.getName(), targetGroupName,<a name="line.1317"></a> |
| <span class="sourceLineNo">1318</span> movedServers);<a name="line.1318"></a> |
| <span class="sourceLineNo">1319</span> }<a name="line.1319"></a> |
| <span class="sourceLineNo">1320</span> }<a name="line.1320"></a> |
| <span class="sourceLineNo">1321</span> }<a name="line.1321"></a> |
| <span class="sourceLineNo">1322</span><a name="line.1322"></a> |
| <span class="sourceLineNo">1323</span> @Override<a name="line.1323"></a> |
| <span class="sourceLineNo">1324</span> public String determineRSGroupInfoForTable(TableName tableName) {<a name="line.1324"></a> |
| <span class="sourceLineNo">1325</span> return script.getRSGroup(tableName.getNamespaceAsString(), tableName.getQualifierAsString());<a name="line.1325"></a> |
| <span class="sourceLineNo">1326</span> }<a name="line.1326"></a> |
| <span class="sourceLineNo">1327</span><a name="line.1327"></a> |
| <span class="sourceLineNo">1328</span> @Override<a name="line.1328"></a> |
| <span class="sourceLineNo">1329</span> public synchronized void renameRSGroup(String oldName, String newName) throws IOException {<a name="line.1329"></a> |
| <span class="sourceLineNo">1330</span> if (oldName.equals(RSGroupInfo.DEFAULT_GROUP)) {<a name="line.1330"></a> |
| <span class="sourceLineNo">1331</span> throw new ConstraintException(RSGroupInfo.DEFAULT_GROUP + " can't be rename");<a name="line.1331"></a> |
| <span class="sourceLineNo">1332</span> }<a name="line.1332"></a> |
| <span class="sourceLineNo">1333</span> checkGroupName(newName);<a name="line.1333"></a> |
| <span class="sourceLineNo">1334</span> // getRSGroupInfo validates old RSGroup existence.<a name="line.1334"></a> |
| <span class="sourceLineNo">1335</span> RSGroupInfo oldRSG = getRSGroupInfo(oldName);<a name="line.1335"></a> |
| <span class="sourceLineNo">1336</span> Map<String, RSGroupInfo> rsGroupMap = holder.groupName2Group;<a name="line.1336"></a> |
| <span class="sourceLineNo">1337</span> if (rsGroupMap.containsKey(newName)) {<a name="line.1337"></a> |
| <span class="sourceLineNo">1338</span> throw new ConstraintException("Group already exists: " + newName);<a name="line.1338"></a> |
| <span class="sourceLineNo">1339</span> }<a name="line.1339"></a> |
| <span class="sourceLineNo">1340</span><a name="line.1340"></a> |
| <span class="sourceLineNo">1341</span> Map<String, RSGroupInfo> newGroupMap = Maps.newHashMap(rsGroupMap);<a name="line.1341"></a> |
| <span class="sourceLineNo">1342</span> newGroupMap.remove(oldRSG.getName());<a name="line.1342"></a> |
| <span class="sourceLineNo">1343</span> RSGroupInfo newRSG = new RSGroupInfo(newName, oldRSG.getServers());<a name="line.1343"></a> |
| <span class="sourceLineNo">1344</span> newGroupMap.put(newName, newRSG);<a name="line.1344"></a> |
| <span class="sourceLineNo">1345</span> flushConfig(newGroupMap);<a name="line.1345"></a> |
| <span class="sourceLineNo">1346</span> Set<TableName> updateTables = masterServices.getTableDescriptors().getAll().values().stream()<a name="line.1346"></a> |
| <span class="sourceLineNo">1347</span> .filter(t -> oldName.equals(t.getRegionServerGroup().orElse(null)))<a name="line.1347"></a> |
| <span class="sourceLineNo">1348</span> .map(TableDescriptor::getTableName).collect(Collectors.toSet());<a name="line.1348"></a> |
| <span class="sourceLineNo">1349</span> setRSGroup(updateTables, newName);<a name="line.1349"></a> |
| <span class="sourceLineNo">1350</span> LOG.info("Rename RSGroup done: {} => {}", oldName, newName);<a name="line.1350"></a> |
| <span class="sourceLineNo">1351</span> }<a name="line.1351"></a> |
| <span class="sourceLineNo">1352</span><a name="line.1352"></a> |
| <span class="sourceLineNo">1353</span> @Override<a name="line.1353"></a> |
| <span class="sourceLineNo">1354</span> public synchronized void updateRSGroupConfig(String groupName, Map<String, String> configuration)<a name="line.1354"></a> |
| <span class="sourceLineNo">1355</span> throws IOException {<a name="line.1355"></a> |
| <span class="sourceLineNo">1356</span> if (RSGroupInfo.DEFAULT_GROUP.equals(groupName)) {<a name="line.1356"></a> |
| <span class="sourceLineNo">1357</span> // We do not persist anything of default group, therefore, it is not supported to update<a name="line.1357"></a> |
| <span class="sourceLineNo">1358</span> // default group's configuration which lost once master down.<a name="line.1358"></a> |
| <span class="sourceLineNo">1359</span> throw new ConstraintException(<a name="line.1359"></a> |
| <span class="sourceLineNo">1360</span> "configuration of " + RSGroupInfo.DEFAULT_GROUP + " can't be stored persistently");<a name="line.1360"></a> |
| <span class="sourceLineNo">1361</span> }<a name="line.1361"></a> |
| <span class="sourceLineNo">1362</span> RSGroupInfo rsGroupInfo = getRSGroupInfo(groupName);<a name="line.1362"></a> |
| <span class="sourceLineNo">1363</span> rsGroupInfo.getConfiguration().forEach((k, v) -> rsGroupInfo.removeConfiguration(k));<a name="line.1363"></a> |
| <span class="sourceLineNo">1364</span> configuration.forEach((k, v) -> rsGroupInfo.setConfiguration(k, v));<a name="line.1364"></a> |
| <span class="sourceLineNo">1365</span> flushConfig();<a name="line.1365"></a> |
| <span class="sourceLineNo">1366</span> }<a name="line.1366"></a> |
| <span class="sourceLineNo">1367</span>}<a name="line.1367"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
