| <!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.procedure2;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.concurrent.DelayQueue;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import org.apache.hadoop.hbase.procedure2.util.DelayedUtil;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.procedure2.util.DelayedUtil.DelayedWithTimeout;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.slf4j.Logger;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.slf4j.LoggerFactory;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>/**<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * Runs task on a period such as check for stuck workers.<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * @see InlineChore<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> */<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>@InterfaceAudience.Private<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>class TimeoutExecutorThread<TEnvironment> extends StoppableThread {<a name="line.32"></a> |
| <span class="sourceLineNo">033</span><a name="line.33"></a> |
| <span class="sourceLineNo">034</span> private static final Logger LOG = LoggerFactory.getLogger(TimeoutExecutorThread.class);<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> private final ProcedureExecutor<TEnvironment> executor;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span><a name="line.37"></a> |
| <span class="sourceLineNo">038</span> private final DelayQueue<DelayedWithTimeout> queue = new DelayQueue<>();<a name="line.38"></a> |
| <span class="sourceLineNo">039</span><a name="line.39"></a> |
| <span class="sourceLineNo">040</span> public TimeoutExecutorThread(ProcedureExecutor<TEnvironment> executor, ThreadGroup group) {<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> super(group, "ProcExecTimeout");<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> setDaemon(true);<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> this.executor = executor;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> }<a name="line.44"></a> |
| <span class="sourceLineNo">045</span><a name="line.45"></a> |
| <span class="sourceLineNo">046</span> @Override<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> public void sendStopSignal() {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> queue.add(DelayedUtil.DELAYED_POISON);<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> }<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> @Override<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> public void run() {<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> while (executor.isRunning()) {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> final DelayedWithTimeout task = DelayedUtil.takeWithoutInterrupt(queue);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> if (task == null || task == DelayedUtil.DELAYED_POISON) {<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> // the executor may be shutting down,<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> // and the task is just the shutdown request<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> continue;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> }<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> LOG.trace("Executing {}", task);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> // execute the task<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> if (task instanceof InlineChore) {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> execInlineChore((InlineChore) task);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> } else if (task instanceof DelayedProcedure) {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> execDelayedProcedure((DelayedProcedure<TEnvironment>) task);<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> } else {<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> LOG.error("CODE-BUG unknown timeout task type {}", task);<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> }<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> public void add(InlineChore chore) {<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> chore.refreshTimeout();<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> queue.add(chore);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> public void add(Procedure<TEnvironment> procedure) {<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> LOG.info("ADDED {}; timeout={}, timestamp={}", procedure, procedure.getTimeout(),<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> procedure.getTimeoutTimestamp());<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> queue.add(new DelayedProcedure<>(procedure));<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> }<a name="line.82"></a> |
| <span class="sourceLineNo">083</span><a name="line.83"></a> |
| <span class="sourceLineNo">084</span> public boolean remove(Procedure<TEnvironment> procedure) {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> return queue.remove(new DelayedProcedure<>(procedure));<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> private void execInlineChore(InlineChore chore) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> chore.run();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> add(chore);<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> private void execDelayedProcedure(DelayedProcedure<TEnvironment> delayed) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> // TODO: treat this as a normal procedure, add it to the scheduler and<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> // let one of the workers handle it.<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> // Today we consider ProcedureInMemoryChore as InlineChores<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> Procedure<TEnvironment> procedure = delayed.getObject();<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> if (procedure instanceof ProcedureInMemoryChore) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> executeInMemoryChore((ProcedureInMemoryChore<TEnvironment>) procedure);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> // if the procedure is in a waiting state again, put it back in the queue<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> procedure.updateTimestamp();<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> if (procedure.isWaiting()) {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> delayed.setTimeout(procedure.getTimeoutTimestamp());<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> queue.add(delayed);<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> } else {<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> executeTimedoutProcedure(procedure);<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> private void executeInMemoryChore(ProcedureInMemoryChore<TEnvironment> chore) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> if (!chore.isWaiting()) {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> return;<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> }<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> // The ProcedureInMemoryChore is a special case, and it acts as a chore.<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> // instead of bringing the Chore class in, we reuse this timeout thread for<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> // this special case.<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> try {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> chore.periodicExecute(executor.getEnvironment());<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> } catch (Throwable e) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> LOG.error("Ignoring {} exception: {}", chore, e.getMessage(), e);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> protected void executeTimedoutProcedure(Procedure<TEnvironment> proc) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // The procedure received a timeout. if the procedure itself does not handle it,<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // call abort() and add the procedure back in the queue for rollback.<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> if (proc.setTimeoutFailure(executor.getEnvironment())) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> long rootProcId = executor.getRootProcedureId(proc);<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> RootProcedureState<TEnvironment> procStack = executor.getProcStack(rootProcId);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> procStack.abort();<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> executor.getStore().update(proc);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> executor.getScheduler().addFront(proc);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<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> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |