| <!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.procedure;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.Closeable;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.concurrent.Callable;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.concurrent.ExecutionException;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.concurrent.ExecutorCompletionService;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.concurrent.ExecutorService;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.concurrent.Executors;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.concurrent.Future;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.concurrent.ThreadPoolExecutor;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span><a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.conf.Configuration;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.Abortable;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.regionserver.RegionServerServices;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.zookeeper.ZKWatcher;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.errorhandling.ForeignException;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.zookeeper.KeeperException;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.slf4j.Logger;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.slf4j.LoggerFactory;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span>public class SimpleRSProcedureManager extends RegionServerProcedureManager {<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> private static final Logger LOG = LoggerFactory.getLogger(SimpleRSProcedureManager.class);<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private RegionServerServices rss;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> private ProcedureMemberRpcs memberRpcs;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private ProcedureMember member;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> @Override<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> public void initialize(RegionServerServices rss) throws KeeperException {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> this.rss = rss;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> ZKWatcher zkw = rss.getZooKeeper();<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> this.memberRpcs = new ZKProcedureMemberRpcs(zkw, getProcedureSignature());<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> ThreadPoolExecutor pool =<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> ProcedureMember.defaultPool(rss.getServerName().toString(), 1);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> this.member = new ProcedureMember(memberRpcs, pool, new SimleSubprocedureBuilder());<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> LOG.info("Initialized: " + rss.getServerName().toString());<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> }<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> @Override<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> public void start() {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> this.memberRpcs.start(rss.getServerName().toString(), member);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> LOG.info("Started.");<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> public void stop(boolean force) throws IOException {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> LOG.info("stop: " + force);<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> try {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> this.member.close();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> } finally {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> this.memberRpcs.close();<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> }<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> @Override<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> public String getProcedureSignature() {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> return SimpleMasterProcedureManager.SIMPLE_SIGNATURE;<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> /**<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * If in a running state, creates the specified subprocedure for handling a procedure.<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * @return Subprocedure to submit to the ProcedureMember.<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> */<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> public Subprocedure buildSubprocedure(String name) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span><a name="line.91"></a> |
| <span class="sourceLineNo">092</span> // don't run a procedure if the parent is stop(ping)<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> if (rss.isStopping() || rss.isStopped()) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> throw new IllegalStateException("Can't start procedure on RS: " + rss.getServerName()<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> + ", because stopping/stopped!");<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> LOG.info("Attempting to run a procedure.");<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> ForeignExceptionDispatcher errorDispatcher = new ForeignExceptionDispatcher();<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> Configuration conf = rss.getConfiguration();<a name="line.100"></a> |
| <span class="sourceLineNo">101</span><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> SimpleSubprocedurePool taskManager =<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> new SimpleSubprocedurePool(rss.getServerName().toString(), conf);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return new SimpleSubprocedure(rss, member, errorDispatcher, taskManager, name);<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> /**<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * Build the actual procedure runner that will do all the 'hard' work<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> */<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> public class SimleSubprocedureBuilder implements SubprocedureFactory {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> @Override<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> public Subprocedure buildSubprocedure(String name, byte[] data) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> LOG.info("Building procedure: " + name);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> return SimpleRSProcedureManager.this.buildSubprocedure(name);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<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> public static class SimpleSubprocedurePool implements Closeable, Abortable {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span><a name="line.120"></a> |
| <span class="sourceLineNo">121</span> private final ExecutorCompletionService<Void> taskPool;<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> private final ExecutorService executor;<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> private volatile boolean aborted;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> private final List<Future<Void>> futures = new ArrayList<>();<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> private final String name;<a name="line.125"></a> |
| <span class="sourceLineNo">126</span><a name="line.126"></a> |
| <span class="sourceLineNo">127</span> public SimpleSubprocedurePool(String name, Configuration conf) {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> this.name = name;<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> executor = Executors.newSingleThreadExecutor(<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> new ThreadFactoryBuilder().setNameFormat("rs(" + name + ")-procedure-pool-%d")<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> .setDaemon(true).setUncaughtExceptionHandler(Threads.LOGGING_EXCEPTION_HANDLER).build());<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> taskPool = new ExecutorCompletionService<>(executor);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> /**<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * Submit a task to the pool.<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> */<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> public void submitTask(final Callable<Void> task) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> Future<Void> f = this.taskPool.submit(task);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> futures.add(f);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span><a name="line.142"></a> |
| <span class="sourceLineNo">143</span> /**<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> * Wait for all of the currently outstanding tasks submitted via {@link #submitTask(Callable)}<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> *<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> * @return <tt>true</tt> on success, <tt>false</tt> otherwise<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> * @throws ForeignException<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> */<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> public boolean waitForOutstandingTasks() throws ForeignException {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> LOG.debug("Waiting for procedure to finish.");<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> try {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> for (Future<Void> f: futures) {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> f.get();<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> }<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> return true;<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> } catch (InterruptedException e) {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> if (aborted) throw new ForeignException(<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> "Interrupted and found to be aborted while waiting for tasks!", e);<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> Thread.currentThread().interrupt();<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> } catch (ExecutionException e) {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> if (e.getCause() instanceof ForeignException) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> throw (ForeignException) e.getCause();<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> throw new ForeignException(name, e.getCause());<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> } finally {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> // close off remaining tasks<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> for (Future<Void> f: futures) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> if (!f.isDone()) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> f.cancel(true);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> return false;<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span><a name="line.176"></a> |
| <span class="sourceLineNo">177</span> /**<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> * Attempt to cleanly shutdown any running tasks - allows currently running tasks to cleanly<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> * finish<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> */<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> @Override<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> public void close() {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> executor.shutdown();<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> @Override<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> public void abort(String why, Throwable e) {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> if (this.aborted) return;<a name="line.188"></a> |
| <span class="sourceLineNo">189</span><a name="line.189"></a> |
| <span class="sourceLineNo">190</span> this.aborted = true;<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> LOG.warn("Aborting because: " + why, e);<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> this.executor.shutdownNow();<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> }<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> @Override<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> public boolean isAborted() {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> return this.aborted;<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> }<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span><a name="line.200"></a> |
| <span class="sourceLineNo">201</span> public class SimpleSubprocedure extends Subprocedure {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> private final RegionServerServices rss;<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> private final SimpleSubprocedurePool taskManager;<a name="line.203"></a> |
| <span class="sourceLineNo">204</span><a name="line.204"></a> |
| <span class="sourceLineNo">205</span> public SimpleSubprocedure(RegionServerServices rss, ProcedureMember member,<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> ForeignExceptionDispatcher errorListener, SimpleSubprocedurePool taskManager, String name) {<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> super(member, name, errorListener, 500, 60000);<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> LOG.info("Constructing a SimpleSubprocedure.");<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> this.rss = rss;<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> this.taskManager = taskManager;<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> }<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> * Callable task.<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> * TODO. We don't need a thread pool to execute roll log. This can be simplified<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> * with no use of subprocedurepool.<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> */<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> class RSSimpleTask implements Callable<Void> {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> RSSimpleTask() {}<a name="line.219"></a> |
| <span class="sourceLineNo">220</span><a name="line.220"></a> |
| <span class="sourceLineNo">221</span> @Override<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> public Void call() throws Exception {<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> LOG.info("Execute subprocedure on " + rss.getServerName().toString());<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> return null;<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> }<a name="line.225"></a> |
| <span class="sourceLineNo">226</span><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> private void execute() throws ForeignException {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span><a name="line.230"></a> |
| <span class="sourceLineNo">231</span> monitor.rethrowException();<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> // running a task (e.g., roll log, flush table) on region server<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> taskManager.submitTask(new RSSimpleTask());<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> monitor.rethrowException();<a name="line.235"></a> |
| <span class="sourceLineNo">236</span><a name="line.236"></a> |
| <span class="sourceLineNo">237</span> // wait for everything to complete.<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> taskManager.waitForOutstandingTasks();<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> monitor.rethrowException();<a name="line.239"></a> |
| <span class="sourceLineNo">240</span><a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span><a name="line.242"></a> |
| <span class="sourceLineNo">243</span> @Override<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> public void acquireBarrier() throws ForeignException {<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> // do nothing, executing in inside barrier step.<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> }<a name="line.246"></a> |
| <span class="sourceLineNo">247</span><a name="line.247"></a> |
| <span class="sourceLineNo">248</span> /**<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> * do a log roll.<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> */<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> @Override<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> public byte[] insideBarrier() throws ForeignException {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> execute();<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> return Bytes.toBytes(SimpleMasterProcedureManager.SIMPLE_DATA);<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> }<a name="line.255"></a> |
| <span class="sourceLineNo">256</span><a name="line.256"></a> |
| <span class="sourceLineNo">257</span> /**<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> * Cancel threads if they haven't finished.<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> */<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> @Override<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> public void cleanup(Exception e) {<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> taskManager.abort("Aborting simple subprocedure tasks due to error", e);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> }<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span><a name="line.265"></a> |
| <span class="sourceLineNo">266</span>}<a name="line.266"></a> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |