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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.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.Arrays;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.TableName;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.TableNotDisabledException;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.master.MasterCoprocessorHost;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.ModifyRegionUtils;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.slf4j.Logger;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.slf4j.LoggerFactory;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.TruncateTableState;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span>@InterfaceAudience.Private<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>public class TruncateTableProcedure extends AbstractStateMachineTableProcedure<TruncateTableState> {<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> private static final Logger LOG = LoggerFactory.getLogger(TruncateTableProcedure.class);<a name="line.46"></a> |
| <span class="sourceLineNo">047</span><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private boolean preserveSplits;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private List<RegionInfo> regions;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> private TableDescriptor tableDescriptor;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private TableName tableName;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> public TruncateTableProcedure() {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> // Required by the Procedure framework to create the procedure on replay<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> super();<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> public TruncateTableProcedure(final MasterProcedureEnv env, final TableName tableName,<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> boolean preserveSplits) throws HBaseIOException {<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> this(env, tableName, preserveSplits, null);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> }<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> public TruncateTableProcedure(final MasterProcedureEnv env, final TableName tableName,<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> boolean preserveSplits, ProcedurePrepareLatch latch) throws HBaseIOException {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> super(env, latch);<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> this.tableName = tableName;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> preflightChecks(env, false);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> this.preserveSplits = preserveSplits;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> }<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> @Override<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> protected Flow executeFromState(final MasterProcedureEnv env, TruncateTableState state)<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> throws InterruptedException {<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> if (LOG.isTraceEnabled()) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> LOG.trace(this + " execute state=" + state);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> try {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> switch (state) {<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> case TRUNCATE_TABLE_PRE_OPERATION:<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> // Verify if we can truncate the table<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> if (!prepareTruncate(env)) {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> assert isFailed() : "the truncate should have an exception here";<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> return Flow.NO_MORE_STATE;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> }<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> // TODO: Move out... in the acquireLock()<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> LOG.debug("waiting for '" + getTableName() + "' regions in transition");<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> regions = env.getAssignmentManager().getRegionStates().getRegionsOfTable(getTableName());<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> RegionReplicaUtil.removeNonDefaultRegions(regions);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> assert regions != null && !regions.isEmpty() : "unexpected 0 regions";<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> ProcedureSyncWait.waitRegionInTransition(env, regions);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> // Call coprocessors<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> preTruncate(env);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> // We need to cache table descriptor in the initial stage, so that it's saved within<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> // the procedure stage and can get recovered if the procedure crashes between<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> // TRUNCATE_TABLE_REMOVE_FROM_META and TRUNCATE_TABLE_CREATE_FS_LAYOUT<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> tableDescriptor = env.getMasterServices().getTableDescriptors().get(tableName);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> setNextState(TruncateTableState.TRUNCATE_TABLE_CLEAR_FS_LAYOUT);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> break;<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> case TRUNCATE_TABLE_CLEAR_FS_LAYOUT:<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> DeleteTableProcedure.deleteFromFs(env, getTableName(), regions, true);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> // NOTE: It's very important that we create new HRegions before next state, so that<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // they get persisted in procedure state before we start using them for anything.<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> // Otherwise, if we create them in next step and master crashes after creating fs<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> // layout but before saving state, region re-created after recovery will have different<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> // regionId(s) and encoded names. That will lead to unwanted regions in FS layout<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> // (which were created before the crash).<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> if (!preserveSplits) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> // if we are not preserving splits, generate a new single region<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> regions = Arrays.asList(ModifyRegionUtils.createRegionInfos(tableDescriptor, null));<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> } else {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> regions = recreateRegionInfo(regions);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> setNextState(TruncateTableState.TRUNCATE_TABLE_REMOVE_FROM_META);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> break;<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> case TRUNCATE_TABLE_REMOVE_FROM_META:<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> List<RegionInfo> originalRegions =<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> env.getAssignmentManager().getRegionStates().getRegionsOfTable(getTableName());<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> DeleteTableProcedure.deleteFromMeta(env, getTableName(), originalRegions);<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> DeleteTableProcedure.deleteAssignmentState(env, getTableName());<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> setNextState(TruncateTableState.TRUNCATE_TABLE_CREATE_FS_LAYOUT);<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> break;<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> case TRUNCATE_TABLE_CREATE_FS_LAYOUT:<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> DeleteTableProcedure.deleteFromFs(env, getTableName(), regions, true);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> regions = CreateTableProcedure.createFsLayout(env, tableDescriptor, regions);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> env.getMasterServices().getTableDescriptors().update(tableDescriptor, true);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> setNextState(TruncateTableState.TRUNCATE_TABLE_ADD_TO_META);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> break;<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> case TRUNCATE_TABLE_ADD_TO_META:<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> regions = CreateTableProcedure.addTableToMeta(env, tableDescriptor, regions);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> setNextState(TruncateTableState.TRUNCATE_TABLE_ASSIGN_REGIONS);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> break;<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> case TRUNCATE_TABLE_ASSIGN_REGIONS:<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> CreateTableProcedure.setEnablingState(env, getTableName());<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> addChildProcedure(env.getAssignmentManager().createRoundRobinAssignProcedures(regions));<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> setNextState(TruncateTableState.TRUNCATE_TABLE_POST_OPERATION);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> tableDescriptor = null;<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> regions = null;<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> break;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> case TRUNCATE_TABLE_POST_OPERATION:<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> CreateTableProcedure.setEnabledState(env, getTableName());<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> postTruncate(env);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> LOG.debug("truncate '" + getTableName() + "' completed");<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> return Flow.NO_MORE_STATE;<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> default:<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> } catch (IOException e) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> if (isRollbackSupported(state)) {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> setFailure("master-truncate-table", e);<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> } else {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> LOG.warn("Retriable error trying to truncate table=" + getTableName() + " state=" + state,<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> e);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> return Flow.HAS_MORE_STATE;<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span> @Override<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> protected void rollbackState(final MasterProcedureEnv env, final TruncateTableState state) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> if (state == TruncateTableState.TRUNCATE_TABLE_PRE_OPERATION) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> // nothing to rollback, pre-truncate is just table-state checks.<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> // We can fail if the table does not exist or is not disabled.<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> // TODO: coprocessor rollback semantic is still undefined.<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> return;<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> // The truncate doesn't have a rollback. The execution will succeed, at some point.<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> throw new UnsupportedOperationException("unhandled state=" + state);<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> @Override<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> protected void completionCleanup(final MasterProcedureEnv env) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> releaseSyncLatch();<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> @Override<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> protected boolean isRollbackSupported(final TruncateTableState state) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> switch (state) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> case TRUNCATE_TABLE_PRE_OPERATION:<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> return true;<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> default:<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> return false;<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> }<a name="line.187"></a> |
| <span class="sourceLineNo">188</span><a name="line.188"></a> |
| <span class="sourceLineNo">189</span> @Override<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> protected TruncateTableState getState(final int stateId) {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> return TruncateTableState.forNumber(stateId);<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> @Override<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> protected int getStateId(final TruncateTableState state) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> return state.getNumber();<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> @Override<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> protected TruncateTableState getInitialState() {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> return TruncateTableState.TRUNCATE_TABLE_PRE_OPERATION;<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span><a name="line.203"></a> |
| <span class="sourceLineNo">204</span> @Override<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> protected boolean holdLock(MasterProcedureEnv env) {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> return true;<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span><a name="line.208"></a> |
| <span class="sourceLineNo">209</span> @Override<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> public TableName getTableName() {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> return tableName;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> }<a name="line.212"></a> |
| <span class="sourceLineNo">213</span><a name="line.213"></a> |
| <span class="sourceLineNo">214</span> @Override<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> public TableOperationType getTableOperationType() {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> return TableOperationType.EDIT;<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> }<a name="line.217"></a> |
| <span class="sourceLineNo">218</span><a name="line.218"></a> |
| <span class="sourceLineNo">219</span> @Override<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> public void toStringClassDetails(StringBuilder sb) {<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> sb.append(getClass().getSimpleName());<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> sb.append(" (table=");<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> sb.append(getTableName());<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> sb.append(" preserveSplits=");<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> sb.append(preserveSplits);<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> sb.append(")");<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> }<a name="line.227"></a> |
| <span class="sourceLineNo">228</span><a name="line.228"></a> |
| <span class="sourceLineNo">229</span> @Override<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> protected void serializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> super.serializeStateData(serializer);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> MasterProcedureProtos.TruncateTableStateData.Builder state =<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> MasterProcedureProtos.TruncateTableStateData.newBuilder()<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> .setUserInfo(MasterProcedureUtil.toProtoUserInfo(getUser()))<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> .setPreserveSplits(preserveSplits);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> if (tableDescriptor != null) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> state.setTableSchema(ProtobufUtil.toTableSchema(tableDescriptor));<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> } else {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> state.setTableName(ProtobufUtil.toProtoTableName(tableName));<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> if (regions != null) {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> for (RegionInfo hri : regions) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> state.addRegionInfo(ProtobufUtil.toRegionInfo(hri));<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> }<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> serializer.serialize(state.build());<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> @Override<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> protected void deserializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> super.deserializeStateData(serializer);<a name="line.252"></a> |
| <span class="sourceLineNo">253</span><a name="line.253"></a> |
| <span class="sourceLineNo">254</span> MasterProcedureProtos.TruncateTableStateData state =<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> serializer.deserialize(MasterProcedureProtos.TruncateTableStateData.class);<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> setUser(MasterProcedureUtil.toUserInfo(state.getUserInfo()));<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> if (state.hasTableSchema()) {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> tableDescriptor = ProtobufUtil.toTableDescriptor(state.getTableSchema());<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> tableName = tableDescriptor.getTableName();<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> } else {<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> tableName = ProtobufUtil.toTableName(state.getTableName());<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> }<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> preserveSplits = state.getPreserveSplits();<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> if (state.getRegionInfoCount() == 0) {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> regions = null;<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> } else {<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> regions = new ArrayList<>(state.getRegionInfoCount());<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> for (HBaseProtos.RegionInfo hri : state.getRegionInfoList()) {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> regions.add(ProtobufUtil.toRegionInfo(hri));<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> }<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> }<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> }<a name="line.272"></a> |
| <span class="sourceLineNo">273</span><a name="line.273"></a> |
| <span class="sourceLineNo">274</span> private static List<RegionInfo> recreateRegionInfo(final List<RegionInfo> regions) {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> ArrayList<RegionInfo> newRegions = new ArrayList<>(regions.size());<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> for (RegionInfo hri : regions) {<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> newRegions.add(RegionInfoBuilder.newBuilder(hri.getTable()).setStartKey(hri.getStartKey())<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> .setEndKey(hri.getEndKey()).build());<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> return newRegions;<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> private boolean prepareTruncate(final MasterProcedureEnv env) throws IOException {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> try {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> env.getMasterServices().checkTableModifiable(getTableName());<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> } catch (TableNotFoundException | TableNotDisabledException e) {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> setFailure("master-truncate-table", e);<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> return false;<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> }<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> return true;<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> private boolean preTruncate(final MasterProcedureEnv env)<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> throws IOException, InterruptedException {<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> final MasterCoprocessorHost cpHost = env.getMasterCoprocessorHost();<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> if (cpHost != null) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> final TableName tableName = getTableName();<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> cpHost.preTruncateTableAction(tableName, getUser());<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> return true;<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> }<a name="line.301"></a> |
| <span class="sourceLineNo">302</span><a name="line.302"></a> |
| <span class="sourceLineNo">303</span> private void postTruncate(final MasterProcedureEnv env) throws IOException, InterruptedException {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> final MasterCoprocessorHost cpHost = env.getMasterCoprocessorHost();<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> if (cpHost != null) {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> final TableName tableName = getTableName();<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> cpHost.postCompletedTruncateTableAction(tableName, getUser());<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><a name="line.310"></a> |
| <span class="sourceLineNo">311</span> RegionInfo getFirstRegionInfo() {<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> if (regions == null || regions.isEmpty()) {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> return null;<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> }<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> return regions.get(0);<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> |
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| </pre> |
| </div> |
| </body> |
| </html> |
