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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/11/03 14:53:42 UTC
[26/39] hbase-site git commit: Published site at
62fe3659349800b0fcbfcafd140ae6a3f57c5804.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1f43e8de/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.FailedProcedure.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.FailedProcedure.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.FailedProcedure.html
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-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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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.procedure2;<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.ArrayDeque;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import java.util.Arrays;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.util.Collection;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import java.util.Deque;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import java.util.HashSet;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import java.util.Iterator;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import java.util.Map;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import java.util.Objects;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import java.util.Set;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.util.concurrent.Executor;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import java.util.concurrent.Executors;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import java.util.concurrent.TimeUnit;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import java.util.stream.Collectors;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import java.util.stream.Stream;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.conf.Configuration;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.HConstants;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.exceptions.IllegalArgumentIOException;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.log.HBaseMarkers;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.procedure2.Procedure.LockState;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.procedure2.store.ProcedureStore;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.procedure2.store.ProcedureStore.ProcedureIterator;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.procedure2.store.ProcedureStore.ProcedureStoreListener;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.procedure2.util.StringUtils;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.security.User;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.IdLock;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.NonceKey;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.slf4j.Logger;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.slf4j.LoggerFactory;<a name="line.58"></a>
-<span class="sourceLineNo">059</span><a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.62"></a>
-<span class="sourceLineNo">063</span><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><a name="line.65"></a>
-<span class="sourceLineNo">066</span>/**<a name="line.66"></a>
-<span class="sourceLineNo">067</span> * Thread Pool that executes the submitted procedures.<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * The executor has a ProcedureStore associated.<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * Each operation is logged and on restart the pending procedures are resumed.<a name="line.69"></a>
-<span class="sourceLineNo">070</span> *<a name="line.70"></a>
-<span class="sourceLineNo">071</span> * Unless the Procedure code throws an error (e.g. invalid user input)<a name="line.71"></a>
-<span class="sourceLineNo">072</span> * the procedure will complete (at some point in time), On restart the pending<a name="line.72"></a>
-<span class="sourceLineNo">073</span> * procedures are resumed and the once failed will be rolledback.<a name="line.73"></a>
-<span class="sourceLineNo">074</span> *<a name="line.74"></a>
-<span class="sourceLineNo">075</span> * The user can add procedures to the executor via submitProcedure(proc)<a name="line.75"></a>
-<span class="sourceLineNo">076</span> * check for the finished state via isFinished(procId)<a name="line.76"></a>
-<span class="sourceLineNo">077</span> * and get the result via getResult(procId)<a name="line.77"></a>
-<span class="sourceLineNo">078</span> */<a name="line.78"></a>
-<span class="sourceLineNo">079</span>@InterfaceAudience.Private<a name="line.79"></a>
-<span class="sourceLineNo">080</span>public class ProcedureExecutor<TEnvironment> {<a name="line.80"></a>
-<span class="sourceLineNo">081</span> private static final Logger LOG = LoggerFactory.getLogger(ProcedureExecutor.class);<a name="line.81"></a>
-<span class="sourceLineNo">082</span><a name="line.82"></a>
-<span class="sourceLineNo">083</span> public static final String CHECK_OWNER_SET_CONF_KEY = "hbase.procedure.check.owner.set";<a name="line.83"></a>
-<span class="sourceLineNo">084</span> private static final boolean DEFAULT_CHECK_OWNER_SET = false;<a name="line.84"></a>
-<span class="sourceLineNo">085</span><a name="line.85"></a>
-<span class="sourceLineNo">086</span> public static final String WORKER_KEEP_ALIVE_TIME_CONF_KEY =<a name="line.86"></a>
-<span class="sourceLineNo">087</span> "hbase.procedure.worker.keep.alive.time.msec";<a name="line.87"></a>
-<span class="sourceLineNo">088</span> private static final long DEFAULT_WORKER_KEEP_ALIVE_TIME = TimeUnit.MINUTES.toMillis(1);<a name="line.88"></a>
-<span class="sourceLineNo">089</span><a name="line.89"></a>
-<span class="sourceLineNo">090</span> /**<a name="line.90"></a>
-<span class="sourceLineNo">091</span> * {@link #testing} is non-null when ProcedureExecutor is being tested. Tests will try to<a name="line.91"></a>
-<span class="sourceLineNo">092</span> * break PE having it fail at various junctures. When non-null, testing is set to an instance of<a name="line.92"></a>
-<span class="sourceLineNo">093</span> * the below internal {@link Testing} class with flags set for the particular test.<a name="line.93"></a>
-<span class="sourceLineNo">094</span> */<a name="line.94"></a>
-<span class="sourceLineNo">095</span> volatile Testing testing = null;<a name="line.95"></a>
-<span class="sourceLineNo">096</span><a name="line.96"></a>
-<span class="sourceLineNo">097</span> /**<a name="line.97"></a>
-<span class="sourceLineNo">098</span> * Class with parameters describing how to fail/die when in testing-context.<a name="line.98"></a>
-<span class="sourceLineNo">099</span> */<a name="line.99"></a>
-<span class="sourceLineNo">100</span> public static class Testing {<a name="line.100"></a>
-<span class="sourceLineNo">101</span> protected volatile boolean killIfHasParent = true;<a name="line.101"></a>
-<span class="sourceLineNo">102</span> protected volatile boolean killIfSuspended = false;<a name="line.102"></a>
-<span class="sourceLineNo">103</span><a name="line.103"></a>
-<span class="sourceLineNo">104</span> /**<a name="line.104"></a>
-<span class="sourceLineNo">105</span> * Kill the PE BEFORE we store state to the WAL. Good for figuring out if a Procedure is<a name="line.105"></a>
-<span class="sourceLineNo">106</span> * persisting all the state it needs to recover after a crash.<a name="line.106"></a>
-<span class="sourceLineNo">107</span> */<a name="line.107"></a>
-<span class="sourceLineNo">108</span> protected volatile boolean killBeforeStoreUpdate = false;<a name="line.108"></a>
-<span class="sourceLineNo">109</span> protected volatile boolean toggleKillBeforeStoreUpdate = false;<a name="line.109"></a>
-<span class="sourceLineNo">110</span><a name="line.110"></a>
-<span class="sourceLineNo">111</span> /**<a name="line.111"></a>
-<span class="sourceLineNo">112</span> * Set when we want to fail AFTER state has been stored into the WAL. Rarely used. HBASE-20978<a name="line.112"></a>
-<span class="sourceLineNo">113</span> * is about a case where memory-state was being set after store to WAL where a crash could<a name="line.113"></a>
-<span class="sourceLineNo">114</span> * cause us to get stuck. This flag allows killing at what was a vulnerable time.<a name="line.114"></a>
-<span class="sourceLineNo">115</span> */<a name="line.115"></a>
-<span class="sourceLineNo">116</span> protected volatile boolean killAfterStoreUpdate = false;<a name="line.116"></a>
-<span class="sourceLineNo">117</span> protected volatile boolean toggleKillAfterStoreUpdate = false;<a name="line.117"></a>
-<span class="sourceLineNo">118</span><a name="line.118"></a>
-<span class="sourceLineNo">119</span> protected boolean shouldKillBeforeStoreUpdate() {<a name="line.119"></a>
-<span class="sourceLineNo">120</span> final boolean kill = this.killBeforeStoreUpdate;<a name="line.120"></a>
-<span class="sourceLineNo">121</span> if (this.toggleKillBeforeStoreUpdate) {<a name="line.121"></a>
-<span class="sourceLineNo">122</span> this.killBeforeStoreUpdate = !kill;<a name="line.122"></a>
-<span class="sourceLineNo">123</span> LOG.warn("Toggle KILL before store update to: " + this.killBeforeStoreUpdate);<a name="line.123"></a>
-<span class="sourceLineNo">124</span> }<a name="line.124"></a>
-<span class="sourceLineNo">125</span> return kill;<a name="line.125"></a>
-<span class="sourceLineNo">126</span> }<a name="line.126"></a>
-<span class="sourceLineNo">127</span><a name="line.127"></a>
-<span class="sourceLineNo">128</span> protected boolean shouldKillBeforeStoreUpdate(boolean isSuspended, boolean hasParent) {<a name="line.128"></a>
-<span class="sourceLineNo">129</span> if (isSuspended && !killIfSuspended) {<a name="line.129"></a>
-<span class="sourceLineNo">130</span> return false;<a name="line.130"></a>
-<span class="sourceLineNo">131</span> }<a name="line.131"></a>
-<span class="sourceLineNo">132</span> if (hasParent && !killIfHasParent) {<a name="line.132"></a>
-<span class="sourceLineNo">133</span> return false;<a name="line.133"></a>
-<span class="sourceLineNo">134</span> }<a name="line.134"></a>
-<span class="sourceLineNo">135</span> return shouldKillBeforeStoreUpdate();<a name="line.135"></a>
-<span class="sourceLineNo">136</span> }<a name="line.136"></a>
-<span class="sourceLineNo">137</span><a name="line.137"></a>
-<span class="sourceLineNo">138</span> protected boolean shouldKillAfterStoreUpdate() {<a name="line.138"></a>
-<span class="sourceLineNo">139</span> final boolean kill = this.killAfterStoreUpdate;<a name="line.139"></a>
-<span class="sourceLineNo">140</span> if (this.toggleKillAfterStoreUpdate) {<a name="line.140"></a>
-<span class="sourceLineNo">141</span> this.killAfterStoreUpdate = !kill;<a name="line.141"></a>
-<span class="sourceLineNo">142</span> LOG.warn("Toggle KILL after store update to: " + this.killAfterStoreUpdate);<a name="line.142"></a>
-<span class="sourceLineNo">143</span> }<a name="line.143"></a>
-<span class="sourceLineNo">144</span> return kill;<a name="line.144"></a>
-<span class="sourceLineNo">145</span> }<a name="line.145"></a>
-<span class="sourceLineNo">146</span><a name="line.146"></a>
-<span class="sourceLineNo">147</span> protected boolean shouldKillAfterStoreUpdate(final boolean isSuspended) {<a name="line.147"></a>
-<span class="sourceLineNo">148</span> return (isSuspended && !killIfSuspended) ? false : shouldKillAfterStoreUpdate();<a name="line.148"></a>
-<span class="sourceLineNo">149</span> }<a name="line.149"></a>
-<span class="sourceLineNo">150</span> }<a name="line.150"></a>
-<span class="sourceLineNo">151</span><a name="line.151"></a>
-<span class="sourceLineNo">152</span> public interface ProcedureExecutorListener {<a name="line.152"></a>
-<span class="sourceLineNo">153</span> void procedureLoaded(long procId);<a name="line.153"></a>
-<span class="sourceLineNo">154</span> void procedureAdded(long procId);<a name="line.154"></a>
-<span class="sourceLineNo">155</span> void procedureFinished(long procId);<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> private static final class CompletedProcedureRetainer<TEnvironment> {<a name="line.158"></a>
-<span class="sourceLineNo">159</span> private final Procedure<TEnvironment> procedure;<a name="line.159"></a>
-<span class="sourceLineNo">160</span> private long clientAckTime;<a name="line.160"></a>
-<span class="sourceLineNo">161</span><a name="line.161"></a>
-<span class="sourceLineNo">162</span> public CompletedProcedureRetainer(Procedure<TEnvironment> procedure) {<a name="line.162"></a>
-<span class="sourceLineNo">163</span> this.procedure = procedure;<a name="line.163"></a>
-<span class="sourceLineNo">164</span> clientAckTime = -1;<a name="line.164"></a>
-<span class="sourceLineNo">165</span> }<a name="line.165"></a>
-<span class="sourceLineNo">166</span><a name="line.166"></a>
-<span class="sourceLineNo">167</span> public Procedure<TEnvironment> getProcedure() {<a name="line.167"></a>
-<span class="sourceLineNo">168</span> return procedure;<a name="line.168"></a>
-<span class="sourceLineNo">169</span> }<a name="line.169"></a>
-<span class="sourceLineNo">170</span><a name="line.170"></a>
-<span class="sourceLineNo">171</span> public boolean hasClientAckTime() {<a name="line.171"></a>
-<span class="sourceLineNo">172</span> return clientAckTime != -1;<a name="line.172"></a>
-<span class="sourceLineNo">173</span> }<a name="line.173"></a>
-<span class="sourceLineNo">174</span><a name="line.174"></a>
-<span class="sourceLineNo">175</span> public long getClientAckTime() {<a name="line.175"></a>
-<span class="sourceLineNo">176</span> return clientAckTime;<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> public void setClientAckTime(long clientAckTime) {<a name="line.179"></a>
-<span class="sourceLineNo">180</span> this.clientAckTime = clientAckTime;<a name="line.180"></a>
-<span class="sourceLineNo">181</span> }<a name="line.181"></a>
-<span class="sourceLineNo">182</span><a name="line.182"></a>
-<span class="sourceLineNo">183</span> public boolean isExpired(long now, long evictTtl, long evictAckTtl) {<a name="line.183"></a>
-<span class="sourceLineNo">184</span> return (hasClientAckTime() && (now - getClientAckTime()) >= evictAckTtl) ||<a name="line.184"></a>
-<span class="sourceLineNo">185</span> (now - procedure.getLastUpdate()) >= evictTtl;<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> /**<a name="line.189"></a>
-<span class="sourceLineNo">190</span> * Internal cleaner that removes the completed procedure results after a TTL.<a name="line.190"></a>
-<span class="sourceLineNo">191</span> * NOTE: This is a special case handled in timeoutLoop().<a name="line.191"></a>
-<span class="sourceLineNo">192</span> *<a name="line.192"></a>
-<span class="sourceLineNo">193</span> * <p>Since the client code looks more or less like:<a name="line.193"></a>
-<span class="sourceLineNo">194</span> * <pre><a name="line.194"></a>
-<span class="sourceLineNo">195</span> * procId = master.doOperation()<a name="line.195"></a>
-<span class="sourceLineNo">196</span> * while (master.getProcResult(procId) == ProcInProgress);<a name="line.196"></a>
-<span class="sourceLineNo">197</span> * </pre><a name="line.197"></a>
-<span class="sourceLineNo">198</span> * The master should not throw away the proc result as soon as the procedure is done<a name="line.198"></a>
-<span class="sourceLineNo">199</span> * but should wait a result request from the client (see executor.removeResult(procId))<a name="line.199"></a>
-<span class="sourceLineNo">200</span> * The client will call something like master.isProcDone() or master.getProcResult()<a name="line.200"></a>
-<span class="sourceLineNo">201</span> * which will return the result/state to the client, and it will mark the completed<a name="line.201"></a>
-<span class="sourceLineNo">202</span> * proc as ready to delete. note that the client may not receive the response from<a name="line.202"></a>
-<span class="sourceLineNo">203</span> * the master (e.g. master failover) so, if we delay a bit the real deletion of<a name="line.203"></a>
-<span class="sourceLineNo">204</span> * the proc result the client will be able to get the result the next try.<a name="line.204"></a>
-<span class="sourceLineNo">205</span> */<a name="line.205"></a>
-<span class="sourceLineNo">206</span> private static class CompletedProcedureCleaner<TEnvironment><a name="line.206"></a>
-<span class="sourceLineNo">207</span> extends ProcedureInMemoryChore<TEnvironment> {<a name="line.207"></a>
-<span class="sourceLineNo">208</span> private static final Logger LOG = LoggerFactory.getLogger(CompletedProcedureCleaner.class);<a name="line.208"></a>
-<span class="sourceLineNo">209</span><a name="line.209"></a>
-<span class="sourceLineNo">210</span> private static final String CLEANER_INTERVAL_CONF_KEY = "hbase.procedure.cleaner.interval";<a name="line.210"></a>
-<span class="sourceLineNo">211</span> private static final int DEFAULT_CLEANER_INTERVAL = 30 * 1000; // 30sec<a name="line.211"></a>
-<span class="sourceLineNo">212</span><a name="line.212"></a>
-<span class="sourceLineNo">213</span> private static final String EVICT_TTL_CONF_KEY = "hbase.procedure.cleaner.evict.ttl";<a name="line.213"></a>
-<span class="sourceLineNo">214</span> private static final int DEFAULT_EVICT_TTL = 15 * 60000; // 15min<a name="line.214"></a>
-<span class="sourceLineNo">215</span><a name="line.215"></a>
-<span class="sourceLineNo">216</span> private static final String EVICT_ACKED_TTL_CONF_KEY ="hbase.procedure.cleaner.acked.evict.ttl";<a name="line.216"></a>
-<span class="sourceLineNo">217</span> private static final int DEFAULT_ACKED_EVICT_TTL = 5 * 60000; // 5min<a name="line.217"></a>
-<span class="sourceLineNo">218</span><a name="line.218"></a>
-<span class="sourceLineNo">219</span> private static final String BATCH_SIZE_CONF_KEY = "hbase.procedure.cleaner.evict.batch.size";<a name="line.219"></a>
-<span class="sourceLineNo">220</span> private static final int DEFAULT_BATCH_SIZE = 32;<a name="line.220"></a>
-<span class="sourceLineNo">221</span><a name="line.221"></a>
-<span class="sourceLineNo">222</span> private final Map<Long, CompletedProcedureRetainer<TEnvironment>> completed;<a name="line.222"></a>
-<span class="sourceLineNo">223</span> private final Map<NonceKey, Long> nonceKeysToProcIdsMap;<a name="line.223"></a>
-<span class="sourceLineNo">224</span> private final ProcedureStore store;<a name="line.224"></a>
-<span class="sourceLineNo">225</span> private Configuration conf;<a name="line.225"></a>
-<span class="sourceLineNo">226</span><a name="line.226"></a>
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-<span class="sourceLineNo">241</span> if (LOG.isTraceEnabled()) {<a name="line.241"></a>
-<span class="sourceLineNo">242</span> LOG.trace("No completed procedures to cleanup.");<a name="line.242"></a>
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-<span class="sourceLineNo">252</span> int batchCount = 0;<a name="line.252"></a>
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-<span class="sourceLineNo">259</span> final CompletedProcedureRetainer<TEnvironment> retainer = entry.getValue();<a name="line.259"></a>
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-<span class="sourceLineNo">262</span> // TODO: Select TTL based on Procedure type<a name="line.262"></a>
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-<span class="sourceLineNo">264</span> // Failed procedures aren't persisted in WAL.<a name="line.264"></a>
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-<span class="sourceLineNo">268</span> store.delete(batchIds, 0, batchCount);<a name="line.268"></a>
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-<span class="sourceLineNo">271</span> }<a name="line.271"></a>
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-<span class="sourceLineNo">274</span> nonceKeysToProcIdsMap.remove(nonceKey);<a name="line.274"></a>
-<span class="sourceLineNo">275</span> }<a name="line.275"></a>
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-<span class="sourceLineNo">277</span> LOG.trace("Evict completed {}", proc);<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>
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-<span class="sourceLineNo">281</span> store.delete(batchIds, 0, batchCount);<a name="line.281"></a>
-<span class="sourceLineNo">282</span> }<a name="line.282"></a>
-<span class="sourceLineNo">283</span> }<a name="line.283"></a>
-<span class="sourceLineNo">284</span> }<a name="line.284"></a>
-<span class="sourceLineNo">285</span><a name="line.285"></a>
-<span class="sourceLineNo">286</span> /**<a name="line.286"></a>
-<span class="sourceLineNo">287</span> * Map the the procId returned by submitProcedure(), the Root-ProcID, to the Procedure.<a name="line.287"></a>
-<span class="sourceLineNo">288</span> * Once a Root-Procedure completes (success or failure), the result will be added to this map.<a name="line.288"></a>
-<span class="sourceLineNo">289</span> * The user of ProcedureExecutor should call getResult(procId) to get the result.<a name="line.289"></a>
-<span class="sourceLineNo">290</span> */<a name="line.290"></a>
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-<span class="sourceLineNo">292</span> new ConcurrentHashMap<>();<a name="line.292"></a>
-<span class="sourceLineNo">293</span><a name="line.293"></a>
-<span class="sourceLineNo">294</span> /**<a name="line.294"></a>
-<span class="sourceLineNo">295</span> * Map the the procId returned by submitProcedure(), the Root-ProcID, to the RootProcedureState.<a name="line.295"></a>
-<span class="sourceLineNo">296</span> * The RootProcedureState contains the execution stack of the Root-Procedure,<a name="line.296"></a>
-<span class="sourceLineNo">297</span> * It is added to the map by submitProcedure() and removed on procedure completion.<a name="line.297"></a>
-<span class="sourceLineNo">298</span> */<a name="line.298"></a>
-<span class="sourceLineNo">299</span> private final ConcurrentHashMap<Long, RootProcedureState<TEnvironment>> rollbackStack =<a name="line.299"></a>
-<span class="sourceLineNo">300</span> new ConcurrentHashMap<>();<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> * Helper map to lookup the live procedures by ID.<a name="line.303"></a>
-<span class="sourceLineNo">304</span> * This map contains every procedure. root-procedures and subprocedures.<a name="line.304"></a>
-<span class="sourceLineNo">305</span> */<a name="line.305"></a>
-<span class="sourceLineNo">306</span> private final ConcurrentHashMap<Long, Procedure<TEnvironment>> procedures =<a name="line.306"></a>
-<span class="sourceLineNo">307</span> new ConcurrentHashMap<>();<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> * Helper map to lookup whether the procedure already issued from the same client. This map<a name="line.310"></a>
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-<span class="sourceLineNo">312</span> */<a name="line.312"></a>
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-<span class="sourceLineNo">314</span><a name="line.314"></a>
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-<span class="sourceLineNo">320</span> /**<a name="line.320"></a>
-<span class="sourceLineNo">321</span> * Created in the {@link #init(int, boolean)} method. Destroyed in {@link #join()} (FIX! Doing<a name="line.321"></a>
-<span class="sourceLineNo">322</span> * resource handling rather than observing in a #join is unexpected).<a name="line.322"></a>
-<span class="sourceLineNo">323</span> * Overridden when we do the ProcedureTestingUtility.testRecoveryAndDoubleExecution trickery<a name="line.323"></a>
-<span class="sourceLineNo">324</span> * (Should be ok).<a name="line.324"></a>
-<span class="sourceLineNo">325</span> */<a name="line.325"></a>
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-<span class="sourceLineNo">327</span><a name="line.327"></a>
-<span class="sourceLineNo">328</span> /**<a name="line.328"></a>
-<span class="sourceLineNo">329</span> * Created in the {@link #init(int, boolean)} method. Terminated in {@link #join()} (FIX! Doing<a name="line.329"></a>
-<span class="sourceLineNo">330</span> * resource handling rather than observing in a #join is unexpected).<a name="line.330"></a>
-<span class="sourceLineNo">331</span> * Overridden when we do the ProcedureTestingUtility.testRecoveryAndDoubleExecution trickery<a name="line.331"></a>
-<span class="sourceLineNo">332</span> * (Should be ok).<a name="line.332"></a>
-<span class="sourceLineNo">333</span> */<a name="line.333"></a>
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-<span class="sourceLineNo">335</span><a name="line.335"></a>
-<span class="sourceLineNo">336</span> /**<a name="line.336"></a>
-<span class="sourceLineNo">337</span> * Created in the {@link #init(int, boolean)} method. Terminated in {@link #join()} (FIX! Doing<a name="line.337"></a>
-<span class="sourceLineNo">338</span> * resource handling rather than observing in a #join is unexpected).<a name="line.338"></a>
-<span class="sourceLineNo">339</span> * Overridden when we do the ProcedureTestingUtility.testRecoveryAndDoubleExecution trickery<a name="line.339"></a>
-<span class="sourceLineNo">340</span> * (Should be ok).<a name="line.340"></a>
-<span class="sourceLineNo">341</span> */<a name="line.341"></a>
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-<span class="sourceLineNo">344</span> private int corePoolSize;<a name="line.344"></a>
-<span class="sourceLineNo">345</span> private int maxPoolSize;<a name="line.345"></a>
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-<span class="sourceLineNo">350</span> * Scheduler/Queue that contains runnable procedures.<a name="line.350"></a>
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-<span class="sourceLineNo">358</span> private final AtomicLong workerId = new AtomicLong(0);<a name="line.358"></a>
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-<span class="sourceLineNo">367</span> // For some rare cases, especially if the procedure uses ProcedureEvent, it is possible that the<a name="line.367"></a>
-<span class="sourceLineNo">368</span> // procedure is woken up before we finish the suspend which causes the same procedures to be<a name="line.368"></a>
-<span class="sourceLineNo">369</span> // executed in parallel. This does lead to some problems, see HBASE-20939&HBASE-20949, and is also<a name="line.369"></a>
-<span class="sourceLineNo">370</span> // a bit confusing to the developers. So here we introduce this lock to prevent the concurrent<a name="line.370"></a>
-<span class="sourceLineNo">371</span> // execution of the same procedure.<a name="line.371"></a>
-<span class="sourceLineNo">372</span> private final IdLock procExecutionLock = new IdLock();<a name="line.372"></a>
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-<span class="sourceLineNo">376</span> this(conf, environment, store, new SimpleProcedureScheduler());<a name="line.376"></a>
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-<span class="sourceLineNo">378</span><a name="line.378"></a>
-<span class="sourceLineNo">379</span> private boolean isRootFinished(Procedure<?> proc) {<a name="line.379"></a>
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-<span class="sourceLineNo">381</span> return rootProc == null || rootProc.isFinished();<a name="line.381"></a>
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-<span class="sourceLineNo">383</span><a name="line.383"></a>
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-<span class="sourceLineNo">387</span> Procedure<TEnvironment> proc = procedures.get(procId);<a name="line.387"></a>
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-<span class="sourceLineNo">389</span> LOG.debug("No pending procedure with id = {}, skip force updating.", procId);<a name="line.389"></a>
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-<span class="sourceLineNo">392</span> // For a sub procedure which root parent has not been finished, we still need to retain the<a name="line.392"></a>
-<span class="sourceLineNo">393</span> // wal even if the procedure itself is finished.<a name="line.393"></a>
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-<span class="sourceLineNo">398</span> LOG.debug("Force update procedure {}", proc);<a name="line.398"></a>
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-<span class="sourceLineNo">419</span> forceUpdateProcedure(procId);<a name="line.419"></a>
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-<span class="sourceLineNo">421</span> LOG.warn("Failed to force update procedure with pid={}", procId);<a name="line.421"></a>
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-<span class="sourceLineNo">468</span> restoreLock(stack.pop(), restored);<a name="line.468"></a>
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-<span class="sourceLineNo">473</span> // Notice that we need to restore the locks starting from the root proc, otherwise there will be<a name="line.473"></a>
-<span class="sourceLineNo">474</span> // problem that a sub procedure may hold the exclusive lock first and then we are stuck when<a name="line.474"></a>
-<span class="sourceLineNo">475</span> // calling the acquireLock method for the parent procedure.<a name="line.475"></a>
-<span class="sourceLineNo">476</span> // The algorithm is straight-forward:<a name="line.476"></a>
-<span class="sourceLineNo">477</span> // 1. Use a set to record the procedures which locks have already been restored.<a name="line.477"></a>
-<span class="sourceLineNo">478</span> // 2. Use a stack to store the hierarchy of the procedures<a name="line.478"></a>
-<span class="sourceLineNo">479</span> // 3. For all the procedure, we will first try to find its parent and push it into the stack,<a name="line.479"></a>
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-<span class="sourceLineNo">482</span> // b. The lock has already been restored(by checking the set introduced in #1)<a name="line.482"></a>
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-<span class="sourceLineNo">484</span> // Notice that this should be done for all procedures, not only the ones in runnableList.<a name="line.484"></a>
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-<span class="sourceLineNo">496</span> restoreLocks(stack, restored);<a name="line.496"></a>
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-<span class="sourceLineNo">500</span> proc = procedures.get(proc.getParentProcId());<a name="line.500"></a>
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-<span class="sourceLineNo">502</span> });<a name="line.502"></a>
-<span class="sourceLineNo">503</span> }<a name="line.503"></a>
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-<span class="sourceLineNo">509</span> int failedCount = 0;<a name="line.509"></a>
-<span class="sourceLineNo">510</span> int waitingCount = 0;<a name="line.510"></a>
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-<span class="sourceLineNo">514</span> @SuppressWarnings("unchecked")<a name="line.514"></a>
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-<span class="sourceLineNo">537</span> break;<a name="line.537"></a>
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-<span class="sourceLineNo">547</span> }<a name="line.547"></a>
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-<span class="sourceLineNo">552</span> }<a name="line.552"></a>
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-<span class="sourceLineNo">554</span><a name="line.554"></a>
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-<span class="sourceLineNo">556</span> // In the old implementation, for procedures in FAILED state, we will push it into the<a name="line.556"></a>
-<span class="sourceLineNo">557</span> // ProcedureScheduler directly to execute the rollback. But this does not work after we<a name="line.557"></a>
-<span class="sourceLineNo">558</span> // introduce the restore lock stage.<a name="line.558"></a>
-<span class="sourceLineNo">559</span> // For now, when we acquire a xlock, we will remove the queue from runQueue in scheduler, and<a name="line.559"></a>
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-<span class="sourceLineNo">563</span> // have been polled out already, so when loading we can not add the procedure to scheduler first<a name="line.563"></a>
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-<span class="sourceLineNo">568</span> List<Procedure<TEnvironment>> waitingList = new ArrayList<>(waitingCount);<a name="line.568"></a>
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-<span class="sourceLineNo">570</span> procIter.reset();<a name="line.570"></a>
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-<span class="sourceLineNo">573</span> procIter.skipNext();<a name="line.573"></a>
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-<span class="sourceLineNo">577</span> @SuppressWarnings("unchecked")<a name="line.577"></a>
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-<span class="sourceLineNo">613</span> String msg = "Unexpected " + proc.getState() + " state for " + proc;<a name="line.613"></a>
-<span class="sourceLineNo">614</span> LOG.error(msg);<a name="line.614"></a>
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-<span class="sourceLineNo">624</span> // Normally, WAITING procedures should be waken by its children.<a name="line.624"></a>
-<span class="sourceLineNo">625</span> // But, there is a case that, all the children are successful and before<a name="line.625"></a>
-<span class="sourceLineNo">626</span> // they can wake up their parent procedure, the master was killed.<a name="line.626"></a>
-<span class="sourceLineNo">627</span> // So, during recovering the procedures from ProcedureWal, its children<a name="line.627"></a>
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-<span class="sourceLineNo">631</span> // will throw:<a name="line.631"></a>
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-<span class="sourceLineNo">667</span> * ensure a single executor, and start the procedure replay to resume and recover the previous<a name="line.667"></a>
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-<span class="sourceLineNo">675</span> // procedures and triggering periodic procedures.<a name="line.675"></a>
-<span class="sourceLineNo">676</span> this.corePoolSize = numThreads;<a name="line.676"></a>
-<span class="sourceLineNo">677</span> this.maxPoolSize = 10 * numThreads;<a name="line.677"></a>
-<span class="sourceLineNo">678</span> LOG.info("Starting {} core workers (bigger of cpus/4 or 16) with max (burst) worker count={}",<a name="line.678"></a>
-<span class="sourceLineNo">679</span> corePoolSize, maxPoolSize);<a name="line.679"></a>
-<span class="sourceLineNo">680</span><a name="line.680"></a>
-<span class="sourceLineNo">681</span> this.threadGroup = new ThreadGroup("PEWorkerGroup");<a name="line.681"></a>
-<span class="sourceLineNo">682</span> this.timeoutExecutor = new TimeoutExecutorThread<>(this, threadGroup);<a name="line.682"></a>
-<span class="sourceLineNo">683</span><a name="line.683"></a>
-<span class="sourceLineNo">684</span> // Create the workers<a name="line.684"></a>
-<span class="sourceLineNo">685</span> workerId.set(0);<a name="line.685"></a>
-<span class="sourceLineNo">686</span> workerThreads = new CopyOnWriteArrayList<>();<a name="line.686"></a>
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-<span class="sourceLineNo">688</span> workerThreads.add(new WorkerThread(threadGroup));<a name="line.688"></a>
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-<span class="sourceLineNo">691</span> long st, et;<a name="line.691"></a>
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-<span class="sourceLineNo">694</span> st = System.nanoTime();<a name="line.694"></a>
-<span class="sourceLineNo">695</span> store.recoverLease();<a name="line.695"></a>
-<span class="sourceLineNo">696</span> et = System.nanoTime();<a name="line.696"></a>
-<span class="sourceLineNo">697</span> LOG.info("Recovered {} lease in {}", store.getClass().getSimpleName(),<a name="line.697"></a>
-<span class="sourceLineNo">698</span> StringUtils.humanTimeDiff(TimeUnit.NANOSECONDS.toMillis(et - st)));<a name="line.698"></a>
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-<span class="sourceLineNo">700</span> // start the procedure scheduler<a name="line.700"></a>
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-<span class="sourceLineNo">703</span> // TODO: Split in two steps.<a name="line.703"></a>
-<span class="sourceLineNo">704</span> // TODO: Handle corrupted procedures (currently just a warn)<a name="line.704"></a>
-<span class="sourceLineNo">705</span> // The first one will make sure that we have the latest id,<a name="line.705"></a>
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-<span class="sourceLineNo">785</span> // ==========================================================================<a name="line.785"></a>
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