| <!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.Collections;<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 java.util.concurrent.ThreadPoolExecutor;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.stream.Collectors;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.stream.Stream;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.conf.Configuration;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.fs.FileSystem;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.fs.Path;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.TableName;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher;<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.MetricsSnapshot;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.master.assignment.MergeTableRegionsProcedure;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.master.assignment.SplitTableRegionProcedure;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.master.snapshot.MasterSnapshotVerifier;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.master.snapshot.SnapshotManager;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.mob.MobUtils;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.monitoring.TaskMonitor;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.procedure2.ProcedureStateSerializer;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.procedure2.ProcedureUtil;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.snapshot.ClientSnapshotDescriptionUtils;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.snapshot.CorruptedSnapshotException;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.snapshot.SnapshotManifest;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.ModifyRegionUtils;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.util.RetryCounter;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.slf4j.Logger;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.slf4j.LoggerFactory;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span><a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SnapshotProcedureStateData;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SnapshotState;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureState;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.SnapshotProtos.SnapshotDescription;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span>/**<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * A procedure used to take snapshot on tables.<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> */<a name="line.69"></a> |
| <span class="sourceLineNo">070</span>@InterfaceAudience.Private<a name="line.70"></a> |
| <span class="sourceLineNo">071</span>public class SnapshotProcedure extends AbstractStateMachineTableProcedure<SnapshotState> {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private static final Logger LOG = LoggerFactory.getLogger(SnapshotProcedure.class);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private final MetricsSnapshot metricsSnapshot = new MetricsSnapshot();<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private Configuration conf;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private SnapshotDescription snapshot;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private Path rootDir;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private Path snapshotDir;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> private Path workingDir;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> private FileSystem workingDirFS;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> private FileSystem rootFs;<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private TableName snapshotTable;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> private MonitoredTask status;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private SnapshotManifest snapshotManifest;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> private TableDescriptor htd;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> private RetryCounter retryCounter;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> public SnapshotProcedure() {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> public SnapshotProcedure(final MasterProcedureEnv env, final SnapshotDescription snapshot) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> super(env);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> this.snapshot = snapshot;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> @Override<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> public TableName getTableName() {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> return TableName.valueOf(snapshot.getTable());<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> }<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> @Override<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> public TableOperationType getTableOperationType() {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return TableOperationType.SNAPSHOT;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> @Override<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> protected LockState acquireLock(MasterProcedureEnv env) {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> // AbstractStateMachineTableProcedure acquires exclusive table lock by default,<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> // but we may need to downgrade it to shared lock for some reasons:<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> // a. exclusive lock has a negative effect on assigning region. See HBASE-21480 for details.<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> // b. we want to support taking multiple different snapshots on same table on the same time.<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> if (env.getProcedureScheduler().waitTableSharedLock(this, getTableName())) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> return LockState.LOCK_EVENT_WAIT;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> return LockState.LOCK_ACQUIRED;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> @Override<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> protected void releaseLock(MasterProcedureEnv env) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> env.getProcedureScheduler().wakeTableSharedLock(this, getTableName());<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span><a name="line.123"></a> |
| <span class="sourceLineNo">124</span> @Override<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> protected boolean holdLock(MasterProcedureEnv env) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> // In order to avoid enabling/disabling/modifying/deleting table during snapshot,<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // we don't release lock during suspend<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> return true;<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> }<a name="line.129"></a> |
| <span class="sourceLineNo">130</span><a name="line.130"></a> |
| <span class="sourceLineNo">131</span> @Override<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> protected Flow executeFromState(MasterProcedureEnv env, SnapshotState state)<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException {<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> LOG.info("{} execute state={}", this, state);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> try {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> switch (state) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> case SNAPSHOT_PREPARE:<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> prepareSnapshot(env);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> setNextState(SnapshotState.SNAPSHOT_PRE_OPERATION);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> return Flow.HAS_MORE_STATE;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> case SNAPSHOT_PRE_OPERATION:<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> preSnapshot(env);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> setNextState(SnapshotState.SNAPSHOT_WRITE_SNAPSHOT_INFO);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> return Flow.HAS_MORE_STATE;<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> case SNAPSHOT_WRITE_SNAPSHOT_INFO:<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> SnapshotDescriptionUtils.writeSnapshotInfo(snapshot, workingDir, workingDirFS);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> TableState tableState =<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> env.getMasterServices().getTableStateManager().getTableState(snapshotTable);<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> if (tableState.isEnabled()) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> setNextState(SnapshotState.SNAPSHOT_SNAPSHOT_ONLINE_REGIONS);<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> } else if (tableState.isDisabled()) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> setNextState(SnapshotState.SNAPSHOT_SNAPSHOT_CLOSED_REGIONS);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> return Flow.HAS_MORE_STATE;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> case SNAPSHOT_SNAPSHOT_ONLINE_REGIONS:<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> addChildProcedure(createRemoteSnapshotProcedures(env));<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> setNextState(SnapshotState.SNAPSHOT_SNAPSHOT_SPLIT_REGIONS);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> return Flow.HAS_MORE_STATE;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> case SNAPSHOT_SNAPSHOT_SPLIT_REGIONS:<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> snapshotSplitRegions(env);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> setNextState(SnapshotState.SNAPSHOT_SNAPSHOT_MOB_REGION);<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> return Flow.HAS_MORE_STATE;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> case SNAPSHOT_SNAPSHOT_CLOSED_REGIONS:<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> snapshotClosedRegions(env);<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> setNextState(SnapshotState.SNAPSHOT_SNAPSHOT_MOB_REGION);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> return Flow.HAS_MORE_STATE;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> case SNAPSHOT_SNAPSHOT_MOB_REGION:<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> snapshotMobRegion(env);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> setNextState(SnapshotState.SNAPSHOT_CONSOLIDATE_SNAPSHOT);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> return Flow.HAS_MORE_STATE;<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> case SNAPSHOT_CONSOLIDATE_SNAPSHOT:<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> // flush the in-memory state, and write the single manifest<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> status.setStatus("Consolidate snapshot: " + snapshot.getName());<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> snapshotManifest.consolidate();<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> setNextState(SnapshotState.SNAPSHOT_VERIFIER_SNAPSHOT);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> return Flow.HAS_MORE_STATE;<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> case SNAPSHOT_VERIFIER_SNAPSHOT:<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> status.setStatus("Verifying snapshot: " + snapshot.getName());<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> verifySnapshot(env);<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> setNextState(SnapshotState.SNAPSHOT_COMPLETE_SNAPSHOT);<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> return Flow.HAS_MORE_STATE;<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> case SNAPSHOT_COMPLETE_SNAPSHOT:<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> if (isSnapshotCorrupted()) {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> throw new CorruptedSnapshotException(snapshot.getName());<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> completeSnapshot(env);<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> setNextState(SnapshotState.SNAPSHOT_POST_OPERATION);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> return Flow.HAS_MORE_STATE;<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> case SNAPSHOT_POST_OPERATION:<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> postSnapshot(env);<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> return Flow.NO_MORE_STATE;<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> default:<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> throw new UnsupportedOperationException("unhandled state=" + state);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> } catch (ProcedureSuspendedException e) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> throw e;<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> } catch (Exception e) {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> setFailure("master-snapshot", e);<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> LOG.warn("unexpected exception while execute {}. Mark procedure Failed.", this, e);<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> status.abort("Abort Snapshot " + snapshot.getName() + " on Table " + snapshotTable);<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> return Flow.NO_MORE_STATE;<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> }<a name="line.204"></a> |
| <span class="sourceLineNo">205</span><a name="line.205"></a> |
| <span class="sourceLineNo">206</span> @Override<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> protected void rollbackState(MasterProcedureEnv env, SnapshotState state)<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> throws IOException, InterruptedException {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> if (state == SnapshotState.SNAPSHOT_PRE_OPERATION) {<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> try {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> if (!workingDirFS.delete(workingDir, true)) {<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> LOG.error("Couldn't delete snapshot working directory {}", workingDir);<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> }<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> } catch (IOException e) {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> LOG.error("Couldn't delete snapshot working directory {}", workingDir, e);<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> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span><a name="line.219"></a> |
| <span class="sourceLineNo">220</span> @Override<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> protected boolean isRollbackSupported(SnapshotState state) {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> return true;<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> @Override<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> protected SnapshotState getState(final int stateId) {<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> return SnapshotState.forNumber(stateId);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span><a name="line.229"></a> |
| <span class="sourceLineNo">230</span> @Override<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> protected int getStateId(SnapshotState state) {<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> return state.getNumber();<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> }<a name="line.233"></a> |
| <span class="sourceLineNo">234</span><a name="line.234"></a> |
| <span class="sourceLineNo">235</span> @Override<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> protected SnapshotState getInitialState() {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> return SnapshotState.SNAPSHOT_PREPARE;<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 void prepareSnapshot(MasterProcedureEnv env)<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> throws ProcedureSuspendedException, IOException {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> if (isAnySplitOrMergeProcedureRunning(env)) {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> if (retryCounter == null) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> retryCounter = ProcedureUtil.createRetryCounter(env.getMasterConfiguration());<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> long backoff = retryCounter.getBackoffTimeAndIncrementAttempts();<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> LOG.warn("{} waits {} ms for Split/Merge procedure to finish", this, backoff);<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> setTimeout(Math.toIntExact(backoff));<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> setState(ProcedureState.WAITING_TIMEOUT);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> skipPersistence();<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> throw new ProcedureSuspendedException();<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> prepareSnapshotEnv(env);<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> }<a name="line.254"></a> |
| <span class="sourceLineNo">255</span><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> private void prepareSnapshotEnv(MasterProcedureEnv env) throws IOException {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> this.conf = env.getMasterConfiguration();<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> this.snapshotTable = TableName.valueOf(snapshot.getTable());<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> this.htd = loadTableDescriptorSnapshot(env);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> this.rootFs = env.getMasterFileSystem().getFileSystem();<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> this.rootDir = CommonFSUtils.getRootDir(conf);<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> this.snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshot, rootDir);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> this.workingDir = SnapshotDescriptionUtils.getWorkingSnapshotDir(snapshot, rootDir, conf);<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> this.workingDirFS = workingDir.getFileSystem(conf);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> this.status = TaskMonitor.get()<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> .createStatus("Taking " + snapshot.getType() + " snapshot on table: " + snapshotTable);<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> ForeignExceptionDispatcher monitor = new ForeignExceptionDispatcher(snapshot.getName());<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> this.snapshotManifest =<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> SnapshotManifest.create(conf, rootFs, workingDir, snapshot, monitor, status);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> this.snapshotManifest.addTableDescriptor(htd);<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> @Override<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> protected synchronized boolean setTimeoutFailure(MasterProcedureEnv env) {<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> setState(ProcedureState.RUNNABLE);<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> env.getProcedureScheduler().addFront(this);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> return false;<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> }<a name="line.278"></a> |
| <span class="sourceLineNo">279</span><a name="line.279"></a> |
| <span class="sourceLineNo">280</span> private boolean isAnySplitOrMergeProcedureRunning(MasterProcedureEnv env) {<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> return env.getMasterServices().getMasterProcedureExecutor().getProcedures().stream()<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> .filter(p -> !p.isFinished())<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> .filter(<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> p -> p instanceof SplitTableRegionProcedure || p instanceof MergeTableRegionsProcedure)<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> .anyMatch(<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> p -> ((AbstractStateMachineTableProcedure<?>) p).getTableName().equals(getTableName()));<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> private TableDescriptor loadTableDescriptorSnapshot(MasterProcedureEnv env) throws IOException {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> TableDescriptor htd = env.getMasterServices().getTableDescriptors().get(snapshotTable);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> if (htd == null) {<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> throw new IOException("TableDescriptor missing for " + snapshotTable);<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> }<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> if (htd.getMaxFileSize() == -1 && this.snapshot.getMaxFileSize() > 0) {<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> return TableDescriptorBuilder.newBuilder(htd).setValue(TableDescriptorBuilder.MAX_FILESIZE,<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> Long.toString(this.snapshot.getMaxFileSize())).build();<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> }<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> return htd;<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> }<a name="line.299"></a> |
| <span class="sourceLineNo">300</span><a name="line.300"></a> |
| <span class="sourceLineNo">301</span> private void preSnapshot(MasterProcedureEnv env) throws IOException {<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> env.getMasterServices().getSnapshotManager().prepareWorkingDirectory(snapshot);<a name="line.302"></a> |
| <span class="sourceLineNo">303</span><a name="line.303"></a> |
| <span class="sourceLineNo">304</span> 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> cpHost.preSnapshot(ProtobufUtil.createSnapshotDesc(snapshot), htd, getUser());<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<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 void postSnapshot(MasterProcedureEnv env) throws IOException {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> SnapshotManager sm = env.getMasterServices().getSnapshotManager();<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> if (sm != null) {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> sm.unregisterSnapshotProcedure(snapshot, getProcId());<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> }<a name="line.314"></a> |
| <span class="sourceLineNo">315</span><a name="line.315"></a> |
| <span class="sourceLineNo">316</span> MasterCoprocessorHost cpHost = env.getMasterCoprocessorHost();<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> if (cpHost != null) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> cpHost.postSnapshot(ProtobufUtil.createSnapshotDesc(snapshot), htd, getUser());<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span><a name="line.321"></a> |
| <span class="sourceLineNo">322</span> private void verifySnapshot(MasterProcedureEnv env) throws IOException {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> int verifyThreshold =<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> env.getMasterConfiguration().getInt("hbase.snapshot.remote.verify.threshold", 10000);<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> List<RegionInfo> regions = env.getAssignmentManager().getTableRegions(snapshotTable, false)<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> .stream().filter(r -> RegionReplicaUtil.isDefaultReplica(r)).collect(Collectors.toList());<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> int numRegions = regions.size();<a name="line.327"></a> |
| <span class="sourceLineNo">328</span><a name="line.328"></a> |
| <span class="sourceLineNo">329</span> MasterSnapshotVerifier verifier =<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> new MasterSnapshotVerifier(env.getMasterServices(), snapshot, workingDirFS);<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> if (numRegions >= verifyThreshold) {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> verifier.verifySnapshot(workingDir, false);<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> addChildProcedure(regions.stream().map(r -> new SnapshotVerifyProcedure(snapshot, r))<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> .toArray(SnapshotVerifyProcedure[]::new));<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> } else {<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> verifier.verifySnapshot(workingDir, true);<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> }<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> }<a name="line.338"></a> |
| <span class="sourceLineNo">339</span><a name="line.339"></a> |
| <span class="sourceLineNo">340</span> private void completeSnapshot(MasterProcedureEnv env) throws IOException {<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> // complete the snapshot, atomically moving from tmp to .snapshot dir.<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> SnapshotDescriptionUtils.completeSnapshot(snapshotDir, workingDir,<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> env.getMasterFileSystem().getFileSystem(), workingDirFS, conf);<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> // update metric. when master restarts, the metric value is wrong<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> metricsSnapshot.addSnapshot(status.getCompletionTimestamp() - status.getStartTime());<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> if (env.getMasterCoprocessorHost() != null) {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> env.getMasterCoprocessorHost()<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> .postCompletedSnapshotAction(ProtobufUtil.createSnapshotDesc(snapshot), htd);<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> }<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> status.markComplete("Snapshot " + snapshot.getName() + " completed");<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> }<a name="line.351"></a> |
| <span class="sourceLineNo">352</span><a name="line.352"></a> |
| <span class="sourceLineNo">353</span> private void snapshotSplitRegions(MasterProcedureEnv env) throws IOException {<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> List<RegionInfo> regions =<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> getDefaultRegionReplica(env).filter(RegionInfo::isSplit).collect(Collectors.toList());<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> snapshotSplitOrClosedRegions(env, regions, "SplitRegionsSnapshotPool");<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span><a name="line.358"></a> |
| <span class="sourceLineNo">359</span> private void snapshotClosedRegions(MasterProcedureEnv env) throws IOException {<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> List<RegionInfo> regions = getDefaultRegionReplica(env).collect(Collectors.toList());<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> snapshotSplitOrClosedRegions(env, regions, "ClosedRegionsSnapshotPool");<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> private Stream<RegionInfo> getDefaultRegionReplica(MasterProcedureEnv env) {<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> return env.getAssignmentManager().getTableRegions(snapshotTable, false).stream()<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> .filter(r -> RegionReplicaUtil.isDefaultReplica(r));<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> private void snapshotSplitOrClosedRegions(MasterProcedureEnv env, List<RegionInfo> regions,<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> String threadPoolName) throws IOException {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> ThreadPoolExecutor exec =<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> SnapshotManifest.createExecutor(env.getMasterConfiguration(), threadPoolName);<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> try {<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> ModifyRegionUtils.editRegions(exec, regions, new ModifyRegionUtils.RegionEditTask() {<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> @Override<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> public void editRegion(final RegionInfo region) throws IOException {<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> snapshotManifest.addRegion(CommonFSUtils.getTableDir(rootDir, snapshotTable), region);<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> LOG.info("take snapshot region={}, table={}", region, snapshotTable);<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> }<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> });<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> } finally {<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> exec.shutdown();<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> status.setStatus("Completed referencing closed/split regions of table: " + snapshotTable);<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> }<a name="line.385"></a> |
| <span class="sourceLineNo">386</span><a name="line.386"></a> |
| <span class="sourceLineNo">387</span> private void snapshotMobRegion(MasterProcedureEnv env) throws IOException {<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> if (!MobUtils.hasMobColumns(htd)) {<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> return;<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> ThreadPoolExecutor exec =<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> SnapshotManifest.createExecutor(env.getMasterConfiguration(), "MobRegionSnapshotPool");<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> RegionInfo mobRegionInfo = MobUtils.getMobRegionInfo(htd.getTableName());<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> try {<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> ModifyRegionUtils.editRegions(exec, Collections.singleton(mobRegionInfo),<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> new ModifyRegionUtils.RegionEditTask() {<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> @Override<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> public void editRegion(final RegionInfo region) throws IOException {<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> snapshotManifest.addRegion(CommonFSUtils.getTableDir(rootDir, snapshotTable), region);<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> }<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> });<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> } finally {<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> exec.shutdown();<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> }<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> status.setStatus("Completed referencing HFiles for the mob region of table: " + snapshotTable);<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> protected void serializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> super.serializeStateData(serializer);<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> serializer<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> .serialize(SnapshotProcedureStateData.newBuilder().setSnapshot(this.snapshot).build());<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> }<a name="line.413"></a> |
| <span class="sourceLineNo">414</span><a name="line.414"></a> |
| <span class="sourceLineNo">415</span> @Override<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> protected void deserializeStateData(ProcedureStateSerializer serializer) throws IOException {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> super.deserializeStateData(serializer);<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> SnapshotProcedureStateData data = serializer.deserialize(SnapshotProcedureStateData.class);<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> this.snapshot = data.getSnapshot();<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> }<a name="line.420"></a> |
| <span class="sourceLineNo">421</span><a name="line.421"></a> |
| <span class="sourceLineNo">422</span> private Procedure<MasterProcedureEnv>[] createRemoteSnapshotProcedures(MasterProcedureEnv env) {<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> return env.getAssignmentManager().getTableRegions(snapshotTable, true).stream()<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> .filter(r -> RegionReplicaUtil.isDefaultReplica(r))<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> .map(r -> new SnapshotRegionProcedure(snapshot, r)).toArray(SnapshotRegionProcedure[]::new);<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> }<a name="line.426"></a> |
| <span class="sourceLineNo">427</span><a name="line.427"></a> |
| <span class="sourceLineNo">428</span> @Override<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> public void toStringClassDetails(StringBuilder builder) {<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> builder.append(getClass().getName()).append(", id=").append(getProcId()).append(", snapshot=")<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> .append(ClientSnapshotDescriptionUtils.toString(snapshot));<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> }<a name="line.432"></a> |
| <span class="sourceLineNo">433</span><a name="line.433"></a> |
| <span class="sourceLineNo">434</span> public SnapshotDescription getSnapshotDesc() {<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> return snapshot;<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> @Override<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> protected void afterReplay(MasterProcedureEnv env) {<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> if (getCurrentState() == getInitialState()) {<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> // if we are in the initial state, it is unnecessary to call prepareSnapshotEnv().<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> return;<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> }<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> try {<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> prepareSnapshotEnv(env);<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> boolean snapshotProcedureEnabled = conf.getBoolean(SnapshotManager.SNAPSHOT_PROCEDURE_ENABLED,<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> SnapshotManager.SNAPSHOT_PROCEDURE_ENABLED_DEFAULT);<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> if (!snapshotProcedureEnabled) {<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> throw new IOException("SnapshotProcedure is DISABLED");<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> }<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> } catch (IOException e) {<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> LOG.error("Failed replaying {}, mark procedure as FAILED", this, e);<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> setFailure("master-snapshot", e);<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> }<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> }<a name="line.455"></a> |
| <span class="sourceLineNo">456</span><a name="line.456"></a> |
| <span class="sourceLineNo">457</span> public SnapshotDescription getSnapshot() {<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> return snapshot;<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> public synchronized void markSnapshotCorrupted() throws IOException {<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> Path flagFile = SnapshotDescriptionUtils.getCorruptedFlagFileForSnapshot(workingDir);<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> if (!workingDirFS.exists(flagFile)) {<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> workingDirFS.create(flagFile).close();<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> LOG.info("touch corrupted snapshot flag file {} for {}", flagFile, snapshot.getName());<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> }<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> }<a name="line.467"></a> |
| <span class="sourceLineNo">468</span><a name="line.468"></a> |
| <span class="sourceLineNo">469</span> public boolean isSnapshotCorrupted() throws IOException {<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> return workingDirFS<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> .exists(SnapshotDescriptionUtils.getCorruptedFlagFileForSnapshot(workingDir));<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> }<a name="line.472"></a> |
| <span class="sourceLineNo">473</span>}<a name="line.473"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |
