| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <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.master.procedure;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.CatalogFamilyFormat;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.Cell;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HConstants;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.TableName;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.TableNotDisabledException;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Result;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.master.MasterCoprocessorHost;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.master.TableStateManager;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.slf4j.Logger;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.slf4j.LoggerFactory;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.EnableTableState;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span>@InterfaceAudience.Private<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>public class EnableTableProcedure<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> extends AbstractStateMachineTableProcedure<EnableTableState> {<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> private static final Logger LOG = LoggerFactory.getLogger(EnableTableProcedure.class);<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> private TableName tableName;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> public EnableTableProcedure() {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> }<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> /**<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * Constructor<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * @param env MasterProcedureEnv<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * @param tableName the table to operate on<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public EnableTableProcedure(MasterProcedureEnv env, TableName tableName) {<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> this(env, tableName, null);<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> }<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> /**<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * Constructor<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * @param env MasterProcedureEnv<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * @param tableName the table to operate on<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> */<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public EnableTableProcedure(MasterProcedureEnv env, TableName tableName,<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> ProcedurePrepareLatch syncLatch) {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> super(env, syncLatch);<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> this.tableName = tableName;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> }<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> @Override<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> protected Flow executeFromState(final MasterProcedureEnv env, final EnableTableState state)<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> throws InterruptedException {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> LOG.trace("{} execute state={}", this, state);<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> try {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> switch (state) {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> case ENABLE_TABLE_PREPARE:<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> if (prepareEnable(env)) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> setNextState(EnableTableState.ENABLE_TABLE_PRE_OPERATION);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> } else {<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> assert isFailed() : "enable should have an exception here";<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> return Flow.NO_MORE_STATE;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> break;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> case ENABLE_TABLE_PRE_OPERATION:<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> preEnable(env, state);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> setNextState(EnableTableState.ENABLE_TABLE_SET_ENABLING_TABLE_STATE);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> break;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> case ENABLE_TABLE_SET_ENABLING_TABLE_STATE:<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> setTableStateToEnabling(env, tableName);<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> setNextState(EnableTableState.ENABLE_TABLE_MARK_REGIONS_ONLINE);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> break;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> case ENABLE_TABLE_MARK_REGIONS_ONLINE:<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> // Get the region replica count. If changed since disable, need to do<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> // more work assigning.<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> Connection connection = env.getMasterServices().getConnection();<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> TableDescriptor tableDescriptor =<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> env.getMasterServices().getTableDescriptors().get(tableName);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> int configuredReplicaCount = tableDescriptor.getRegionReplication();<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> // Get regions for the table from memory; get both online and offline regions ('true').<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> List<RegionInfo> regionsOfTable =<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> env.getAssignmentManager().getRegionStates().getRegionsOfTable(tableName, true);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> // How many replicas do we currently have? Check regions returned from<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> // in-memory state.<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> int currentMaxReplica = getMaxReplicaId(regionsOfTable);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span><a name="line.114"></a> |
| <span class="sourceLineNo">115</span> // Read the META table to know the number of replicas the table currently has.<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> // If there was a table modification on region replica count then need to<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> // adjust replica counts here.<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> int replicasFound = TableName.isMetaTableName(this.tableName)?<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> 0: // TODO: Figure better what to do here for hbase:meta replica.<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> getReplicaCountInMeta(connection, configuredReplicaCount, regionsOfTable);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> LOG.info("replicasFound={} (configuredReplicaCount={} for {}", replicasFound,<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> configuredReplicaCount, tableName.getNameAsString());<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> if (currentMaxReplica == (configuredReplicaCount - 1)) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> if (LOG.isDebugEnabled()) {<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> LOG.debug("No change in number of region replicas (configuredReplicaCount={});"<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> + " assigning.", configuredReplicaCount);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> } else if (currentMaxReplica > (configuredReplicaCount - 1)) {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // We have additional regions as the replica count has been decreased. Delete<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> // those regions because already the table is in the unassigned state<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> LOG.info("The number of replicas " + (currentMaxReplica + 1)<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> + " is more than the region replica count " + configuredReplicaCount);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> List<RegionInfo> copyOfRegions = new ArrayList<RegionInfo>(regionsOfTable);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> for (RegionInfo regionInfo : copyOfRegions) {<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> if (regionInfo.getReplicaId() > (configuredReplicaCount - 1)) {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> // delete the region from the regionStates<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> env.getAssignmentManager().getRegionStates().deleteRegion(regionInfo);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> // remove it from the list of regions of the table<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> LOG.info("Removed replica={} of {}", regionInfo.getRegionId(), regionInfo);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> regionsOfTable.remove(regionInfo);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> }<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> } else {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> // the replicasFound is less than the regionReplication<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> LOG.info("Number of replicas has increased for {}. Assigning new region replicas." +<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> "The previous replica count was {}. The current replica count is {}.",<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> this.tableName, (currentMaxReplica + 1), configuredReplicaCount);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> regionsOfTable = RegionReplicaUtil.addReplicas(regionsOfTable,<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> currentMaxReplica + 1, configuredReplicaCount);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> // Assign all the table regions. (including region replicas if added).<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> // createAssignProcedure will try to retain old assignments if possible.<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> addChildProcedure(env.getAssignmentManager().createAssignProcedures(regionsOfTable));<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> setNextState(EnableTableState.ENABLE_TABLE_SET_ENABLED_TABLE_STATE);<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> break;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> case ENABLE_TABLE_SET_ENABLED_TABLE_STATE:<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> setTableStateToEnabled(env, tableName);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> setNextState(EnableTableState.ENABLE_TABLE_POST_OPERATION);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> break;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> case ENABLE_TABLE_POST_OPERATION:<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> postEnable(env, state);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> return Flow.NO_MORE_STATE;<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> default:<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> } catch (IOException e) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> if (isRollbackSupported(state)) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> setFailure("master-enable-table", e);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> } else {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> LOG.warn(<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> "Retriable error trying to enable table=" + tableName + " (in state=" + state + ")", e);<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> return Flow.HAS_MORE_STATE;<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span><a name="line.176"></a> |
| <span class="sourceLineNo">177</span> /**<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> * @return Count of replicas found reading hbase:meta Region row or zk if<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> * asking about the hbase:meta table itself..<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> */<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> private int getReplicaCountInMeta(Connection connection, int regionReplicaCount,<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> List<RegionInfo> regionsOfTable) throws IOException {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> Result r = MetaTableAccessor.getCatalogFamilyRow(connection, regionsOfTable.get(0));<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> int replicasFound = 0;<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> for (int i = 1; i < regionReplicaCount; i++) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> // Since we have already added the entries to the META we will be getting only that here<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> List<Cell> columnCells =<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> r.getColumnCells(HConstants.CATALOG_FAMILY, CatalogFamilyFormat.getServerColumn(i));<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> if (!columnCells.isEmpty()) {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> replicasFound++;<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> }<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> return replicasFound;<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span><a name="line.195"></a> |
| <span class="sourceLineNo">196</span> @Override<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> protected void rollbackState(final MasterProcedureEnv env, final EnableTableState state)<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> throws IOException {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> // nothing to rollback, prepare-disable is just table-state checks.<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> // We can fail if the table does not exist or is not disabled.<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> switch (state) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> case ENABLE_TABLE_PRE_OPERATION:<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> return;<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> case ENABLE_TABLE_PREPARE:<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> releaseSyncLatch();<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> return;<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> default:<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> break;<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> // The delete doesn't have a rollback. The execution will succeed, at some point.<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> }<a name="line.213"></a> |
| <span class="sourceLineNo">214</span><a name="line.214"></a> |
| <span class="sourceLineNo">215</span> @Override<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> protected boolean isRollbackSupported(final EnableTableState state) {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> switch (state) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> case ENABLE_TABLE_PREPARE:<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> case ENABLE_TABLE_PRE_OPERATION:<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> return true;<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> default:<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> return false;<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> }<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> }<a name="line.224"></a> |
| <span class="sourceLineNo">225</span><a name="line.225"></a> |
| <span class="sourceLineNo">226</span> @Override<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> protected EnableTableState getState(final int stateId) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> return EnableTableState.forNumber(stateId);<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span><a name="line.230"></a> |
| <span class="sourceLineNo">231</span> @Override<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> protected int getStateId(final EnableTableState state) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> return state.getNumber();<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span><a name="line.235"></a> |
| <span class="sourceLineNo">236</span> @Override<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> protected EnableTableState getInitialState() {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> return EnableTableState.ENABLE_TABLE_PREPARE;<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> }<a name="line.239"></a> |
| <span class="sourceLineNo">240</span><a name="line.240"></a> |
| <span class="sourceLineNo">241</span> @Override<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> protected void serializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> super.serializeStateData(serializer);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span><a name="line.244"></a> |
| <span class="sourceLineNo">245</span> // the skipTableStateCheck is false so we still need to set it...<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> @SuppressWarnings("deprecation")<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> MasterProcedureProtos.EnableTableStateData.Builder enableTableMsg =<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> MasterProcedureProtos.EnableTableStateData.newBuilder()<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> .setUserInfo(MasterProcedureUtil.toProtoUserInfo(getUser()))<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> .setTableName(ProtobufUtil.toProtoTableName(tableName)).setSkipTableStateCheck(false);<a name="line.250"></a> |
| <span class="sourceLineNo">251</span><a name="line.251"></a> |
| <span class="sourceLineNo">252</span> serializer.serialize(enableTableMsg.build());<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span> @Override<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> protected void deserializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> super.deserializeStateData(serializer);<a name="line.257"></a> |
| <span class="sourceLineNo">258</span><a name="line.258"></a> |
| <span class="sourceLineNo">259</span> MasterProcedureProtos.EnableTableStateData enableTableMsg =<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> serializer.deserialize(MasterProcedureProtos.EnableTableStateData.class);<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> setUser(MasterProcedureUtil.toUserInfo(enableTableMsg.getUserInfo()));<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> tableName = ProtobufUtil.toTableName(enableTableMsg.getTableName());<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> }<a name="line.263"></a> |
| <span class="sourceLineNo">264</span><a name="line.264"></a> |
| <span class="sourceLineNo">265</span> @Override<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> public TableName getTableName() {<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> return tableName;<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> }<a name="line.268"></a> |
| <span class="sourceLineNo">269</span><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> @Override<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> public TableOperationType getTableOperationType() {<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> return TableOperationType.ENABLE;<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> }<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> /**<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> * Action before any real action of enabling table. Set the exception in the procedure instead<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> * of throwing it. This approach is to deal with backward compatible with 1.0.<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> * @param env MasterProcedureEnv<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> * @return whether the table passes the necessary checks<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> * @throws IOException<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> */<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> private boolean prepareEnable(final MasterProcedureEnv env) throws IOException {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> boolean canTableBeEnabled = true;<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> // Check whether table exists<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> if (!env.getMasterServices().getTableDescriptors().exists(tableName)) {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> setFailure("master-enable-table", new TableNotFoundException(tableName));<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> canTableBeEnabled = false;<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> } else {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> // There could be multiple client requests trying to disable or enable<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> // the table at the same time. Ensure only the first request is honored<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> // After that, no other requests can be accepted until the table reaches<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> // DISABLED or ENABLED.<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> //<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> // Note: in 1.0 release, we called TableStateManager.setTableStateIfInStates() to set<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> // the state to ENABLING from DISABLED. The implementation was done before table lock<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> // was implemented. With table lock, there is no need to set the state here (it will<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> // set the state later on). A quick state check should be enough for us to move forward.<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> TableStateManager tsm = env.getMasterServices().getTableStateManager();<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> TableState ts = tsm.getTableState(tableName);<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> if(!ts.isDisabled()){<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> LOG.info("Not DISABLED tableState={}; skipping enable; {}", ts.getState(), this);<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> setFailure("master-enable-table", new TableNotDisabledException(ts.toString()));<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> canTableBeEnabled = false;<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> }<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> }<a name="line.306"></a> |
| <span class="sourceLineNo">307</span><a name="line.307"></a> |
| <span class="sourceLineNo">308</span> // We are done the check. Future actions in this procedure could be done asynchronously.<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> releaseSyncLatch();<a name="line.309"></a> |
| <span class="sourceLineNo">310</span><a name="line.310"></a> |
| <span class="sourceLineNo">311</span> return canTableBeEnabled;<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> }<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> /**<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> * Action before enabling table.<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> * @param env MasterProcedureEnv<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> * @param state the procedure state<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> * @throws IOException<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> * @throws InterruptedException<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> */<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> private void preEnable(final MasterProcedureEnv env, final EnableTableState state)<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> throws IOException, InterruptedException {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> runCoprocessorAction(env, state);<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span><a name="line.325"></a> |
| <span class="sourceLineNo">326</span> /**<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> * Mark table state to Enabling<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> * @param env MasterProcedureEnv<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> * @param tableName the target table<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> * @throws IOException<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> */<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> protected static void setTableStateToEnabling(<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> final MasterProcedureEnv env,<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> final TableName tableName) throws IOException {<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> // Set table disabling flag up in zk.<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> LOG.info("Attempting to enable the table " + tableName);<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> env.getMasterServices().getTableStateManager().setTableState(<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> tableName,<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> TableState.State.ENABLING);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> }<a name="line.340"></a> |
| <span class="sourceLineNo">341</span><a name="line.341"></a> |
| <span class="sourceLineNo">342</span> /**<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> * Mark table state to Enabled<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> * @param env MasterProcedureEnv<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> * @throws IOException<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> */<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> protected static void setTableStateToEnabled(<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> final MasterProcedureEnv env,<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> final TableName tableName) throws IOException {<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> // Flip the table to Enabled<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> env.getMasterServices().getTableStateManager().setTableState(<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> tableName,<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> TableState.State.ENABLED);<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> LOG.info("Table '" + tableName + "' was successfully enabled.");<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> }<a name="line.355"></a> |
| <span class="sourceLineNo">356</span><a name="line.356"></a> |
| <span class="sourceLineNo">357</span> /**<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> * Action after enabling table.<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> * @param env MasterProcedureEnv<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> * @param state the procedure state<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> * @throws IOException<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> * @throws InterruptedException<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> */<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> private void postEnable(final MasterProcedureEnv env, final EnableTableState state)<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> throws IOException, InterruptedException {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> runCoprocessorAction(env, state);<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> /**<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> * Coprocessor Action.<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> * @param env MasterProcedureEnv<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> * @param state the procedure state<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> * @throws IOException<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> * @throws InterruptedException<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> */<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> private void runCoprocessorAction(final MasterProcedureEnv env, final EnableTableState state)<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> throws IOException, InterruptedException {<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> final MasterCoprocessorHost cpHost = env.getMasterCoprocessorHost();<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> if (cpHost != null) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> switch (state) {<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> case ENABLE_TABLE_PRE_OPERATION:<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> cpHost.preEnableTableAction(getTableName(), getUser());<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> break;<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> case ENABLE_TABLE_POST_OPERATION:<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> cpHost.postCompletedEnableTableAction(getTableName(), getUser());<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> break;<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> default:<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> throw new UnsupportedOperationException(this + " unhandled state=" + state);<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> }<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><a name="line.392"></a> |
| <span class="sourceLineNo">393</span> /**<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> * @return Maximum region replica id found in passed list of regions.<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> */<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> private static int getMaxReplicaId(List<RegionInfo> regions) {<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> int max = 0;<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> for (RegionInfo regionInfo: regions) {<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> if (regionInfo.getReplicaId() > max) {<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> // Iterating through all the list to identify the highest replicaID region.<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> // We can stop after checking with the first set of regions??<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> max = regionInfo.getReplicaId();<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> }<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> }<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> return max;<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>}<a name="line.408"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
