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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.procedure2;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import static org.junit.Assert.assertEquals;</span> |
| <span class="source-line-no">021</span><span id="line-21"></span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.concurrent.Semaphore;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.HBaseCommonTestingUtil;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility.NoopProcedure;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.procedure2.store.NoopProcedureStore;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.testclassification.MasterTests;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.testclassification.SmallTests;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.util.Threads;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.junit.After;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.junit.Before;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.junit.ClassRule;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.junit.Test;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.slf4j.Logger;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40">@Category({ MasterTests.class, SmallTests.class })</span> |
| <span class="source-line-no">041</span><span id="line-41">public class TestProcedureExecutor {</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43"> @ClassRule</span> |
| <span class="source-line-no">044</span><span id="line-44"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">045</span><span id="line-45"> HBaseClassTestRule.forClass(TestProcedureExecutor.class);</span> |
| <span class="source-line-no">046</span><span id="line-46"></span> |
| <span class="source-line-no">047</span><span id="line-47"> private static final Logger LOG = LoggerFactory.getLogger(TestProcedureExecutor.class);</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> private TestProcEnv procEnv;</span> |
| <span class="source-line-no">050</span><span id="line-50"> private NoopProcedureStore procStore;</span> |
| <span class="source-line-no">051</span><span id="line-51"> private ProcedureExecutor<TestProcEnv> procExecutor;</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> private HBaseCommonTestingUtil htu;</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> @Before</span> |
| <span class="source-line-no">056</span><span id="line-56"> public void setUp() throws Exception {</span> |
| <span class="source-line-no">057</span><span id="line-57"> htu = new HBaseCommonTestingUtil();</span> |
| <span class="source-line-no">058</span><span id="line-58"></span> |
| <span class="source-line-no">059</span><span id="line-59"> // NOTE: The executor will be created by each test</span> |
| <span class="source-line-no">060</span><span id="line-60"> procEnv = new TestProcEnv();</span> |
| <span class="source-line-no">061</span><span id="line-61"> procStore = new NoopProcedureStore();</span> |
| <span class="source-line-no">062</span><span id="line-62"> procStore.start(1);</span> |
| <span class="source-line-no">063</span><span id="line-63"> }</span> |
| <span class="source-line-no">064</span><span id="line-64"></span> |
| <span class="source-line-no">065</span><span id="line-65"> @After</span> |
| <span class="source-line-no">066</span><span id="line-66"> public void tearDown() throws Exception {</span> |
| <span class="source-line-no">067</span><span id="line-67"> procExecutor.stop();</span> |
| <span class="source-line-no">068</span><span id="line-68"> procStore.stop(false);</span> |
| <span class="source-line-no">069</span><span id="line-69"> procExecutor.join();</span> |
| <span class="source-line-no">070</span><span id="line-70"> }</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> private void createNewExecutor(final Configuration conf, final int numThreads) throws Exception {</span> |
| <span class="source-line-no">073</span><span id="line-73"> procExecutor = new ProcedureExecutor<>(conf, procEnv, procStore);</span> |
| <span class="source-line-no">074</span><span id="line-74"> ProcedureTestingUtility.initAndStartWorkers(procExecutor, numThreads, true);</span> |
| <span class="source-line-no">075</span><span id="line-75"> }</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> @Test</span> |
| <span class="source-line-no">078</span><span id="line-78"> public void testWorkerStuck() throws Exception {</span> |
| <span class="source-line-no">079</span><span id="line-79"> // replace the executor</span> |
| <span class="source-line-no">080</span><span id="line-80"> final Configuration conf = new Configuration(htu.getConfiguration());</span> |
| <span class="source-line-no">081</span><span id="line-81"> conf.setFloat("hbase.procedure.worker.add.stuck.percentage", 0.5f);</span> |
| <span class="source-line-no">082</span><span id="line-82"> conf.setInt("hbase.procedure.worker.monitor.interval.msec", 500);</span> |
| <span class="source-line-no">083</span><span id="line-83"> conf.setInt("hbase.procedure.worker.stuck.threshold.msec", 750);</span> |
| <span class="source-line-no">084</span><span id="line-84"></span> |
| <span class="source-line-no">085</span><span id="line-85"> final int NUM_THREADS = 2;</span> |
| <span class="source-line-no">086</span><span id="line-86"> createNewExecutor(conf, NUM_THREADS);</span> |
| <span class="source-line-no">087</span><span id="line-87"></span> |
| <span class="source-line-no">088</span><span id="line-88"> Semaphore latch1 = new Semaphore(2);</span> |
| <span class="source-line-no">089</span><span id="line-89"> latch1.acquire(2);</span> |
| <span class="source-line-no">090</span><span id="line-90"> BusyWaitProcedure busyProc1 = new BusyWaitProcedure(latch1);</span> |
| <span class="source-line-no">091</span><span id="line-91"></span> |
| <span class="source-line-no">092</span><span id="line-92"> Semaphore latch2 = new Semaphore(2);</span> |
| <span class="source-line-no">093</span><span id="line-93"> latch2.acquire(2);</span> |
| <span class="source-line-no">094</span><span id="line-94"> BusyWaitProcedure busyProc2 = new BusyWaitProcedure(latch2);</span> |
| <span class="source-line-no">095</span><span id="line-95"></span> |
| <span class="source-line-no">096</span><span id="line-96"> long busyProcId1 = procExecutor.submitProcedure(busyProc1);</span> |
| <span class="source-line-no">097</span><span id="line-97"> long busyProcId2 = procExecutor.submitProcedure(busyProc2);</span> |
| <span class="source-line-no">098</span><span id="line-98"> long otherProcId = procExecutor.submitProcedure(new NoopProcedure());</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> // wait until a new worker is being created</span> |
| <span class="source-line-no">101</span><span id="line-101"> int threads1 = waitThreadCount(NUM_THREADS + 1);</span> |
| <span class="source-line-no">102</span><span id="line-102"> LOG.info("new threads got created: " + (threads1 - NUM_THREADS));</span> |
| <span class="source-line-no">103</span><span id="line-103"> assertEquals(NUM_THREADS + 1, threads1);</span> |
| <span class="source-line-no">104</span><span id="line-104"></span> |
| <span class="source-line-no">105</span><span id="line-105"> ProcedureTestingUtility.waitProcedure(procExecutor, otherProcId);</span> |
| <span class="source-line-no">106</span><span id="line-106"> assertEquals(true, procExecutor.isFinished(otherProcId));</span> |
| <span class="source-line-no">107</span><span id="line-107"> ProcedureTestingUtility.assertProcNotFailed(procExecutor, otherProcId);</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> assertEquals(true, procExecutor.isRunning());</span> |
| <span class="source-line-no">110</span><span id="line-110"> assertEquals(false, procExecutor.isFinished(busyProcId1));</span> |
| <span class="source-line-no">111</span><span id="line-111"> assertEquals(false, procExecutor.isFinished(busyProcId2));</span> |
| <span class="source-line-no">112</span><span id="line-112"></span> |
| <span class="source-line-no">113</span><span id="line-113"> // terminate the busy procedures</span> |
| <span class="source-line-no">114</span><span id="line-114"> latch1.release();</span> |
| <span class="source-line-no">115</span><span id="line-115"> latch2.release();</span> |
| <span class="source-line-no">116</span><span id="line-116"></span> |
| <span class="source-line-no">117</span><span id="line-117"> LOG.info("set keep alive and wait threads being removed");</span> |
| <span class="source-line-no">118</span><span id="line-118"> procExecutor.setKeepAliveTime(500L, TimeUnit.MILLISECONDS);</span> |
| <span class="source-line-no">119</span><span id="line-119"> int threads2 = waitThreadCount(NUM_THREADS);</span> |
| <span class="source-line-no">120</span><span id="line-120"> LOG.info("threads got removed: " + (threads1 - threads2));</span> |
| <span class="source-line-no">121</span><span id="line-121"> assertEquals(NUM_THREADS, threads2);</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> // terminate the busy procedures</span> |
| <span class="source-line-no">124</span><span id="line-124"> latch1.release();</span> |
| <span class="source-line-no">125</span><span id="line-125"> latch2.release();</span> |
| <span class="source-line-no">126</span><span id="line-126"></span> |
| <span class="source-line-no">127</span><span id="line-127"> // wait for all procs to complete</span> |
| <span class="source-line-no">128</span><span id="line-128"> ProcedureTestingUtility.waitProcedure(procExecutor, busyProcId1);</span> |
| <span class="source-line-no">129</span><span id="line-129"> ProcedureTestingUtility.waitProcedure(procExecutor, busyProcId2);</span> |
| <span class="source-line-no">130</span><span id="line-130"> ProcedureTestingUtility.assertProcNotFailed(procExecutor, busyProcId1);</span> |
| <span class="source-line-no">131</span><span id="line-131"> ProcedureTestingUtility.assertProcNotFailed(procExecutor, busyProcId2);</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"></span> |
| <span class="source-line-no">134</span><span id="line-134"> @Test</span> |
| <span class="source-line-no">135</span><span id="line-135"> public void testSubmitBatch() throws Exception {</span> |
| <span class="source-line-no">136</span><span id="line-136"> Procedure[] procs = new Procedure[5];</span> |
| <span class="source-line-no">137</span><span id="line-137"> for (int i = 0; i < procs.length; ++i) {</span> |
| <span class="source-line-no">138</span><span id="line-138"> procs[i] = new NoopProcedure<TestProcEnv>();</span> |
| <span class="source-line-no">139</span><span id="line-139"> }</span> |
| <span class="source-line-no">140</span><span id="line-140"></span> |
| <span class="source-line-no">141</span><span id="line-141"> // submit procedures</span> |
| <span class="source-line-no">142</span><span id="line-142"> createNewExecutor(htu.getConfiguration(), 3);</span> |
| <span class="source-line-no">143</span><span id="line-143"> procExecutor.submitProcedures(procs);</span> |
| <span class="source-line-no">144</span><span id="line-144"></span> |
| <span class="source-line-no">145</span><span id="line-145"> // wait for procs to be completed</span> |
| <span class="source-line-no">146</span><span id="line-146"> for (int i = 0; i < procs.length; ++i) {</span> |
| <span class="source-line-no">147</span><span id="line-147"> final long procId = procs[i].getProcId();</span> |
| <span class="source-line-no">148</span><span id="line-148"> ProcedureTestingUtility.waitProcedure(procExecutor, procId);</span> |
| <span class="source-line-no">149</span><span id="line-149"> ProcedureTestingUtility.assertProcNotFailed(procExecutor, procId);</span> |
| <span class="source-line-no">150</span><span id="line-150"> }</span> |
| <span class="source-line-no">151</span><span id="line-151"> }</span> |
| <span class="source-line-no">152</span><span id="line-152"></span> |
| <span class="source-line-no">153</span><span id="line-153"> private int waitThreadCount(final int expectedThreads) {</span> |
| <span class="source-line-no">154</span><span id="line-154"> while (procExecutor.isRunning()) {</span> |
| <span class="source-line-no">155</span><span id="line-155"> if (procExecutor.getWorkerThreadCount() == expectedThreads) {</span> |
| <span class="source-line-no">156</span><span id="line-156"> break;</span> |
| <span class="source-line-no">157</span><span id="line-157"> }</span> |
| <span class="source-line-no">158</span><span id="line-158"> LOG.debug("waiting for thread count=" + expectedThreads + " current="</span> |
| <span class="source-line-no">159</span><span id="line-159"> + procExecutor.getWorkerThreadCount());</span> |
| <span class="source-line-no">160</span><span id="line-160"> Threads.sleepWithoutInterrupt(250);</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"> return procExecutor.getWorkerThreadCount();</span> |
| <span class="source-line-no">163</span><span id="line-163"> }</span> |
| <span class="source-line-no">164</span><span id="line-164"></span> |
| <span class="source-line-no">165</span><span id="line-165"> public static class BusyWaitProcedure extends NoopProcedure<TestProcEnv> {</span> |
| <span class="source-line-no">166</span><span id="line-166"> private final Semaphore latch;</span> |
| <span class="source-line-no">167</span><span id="line-167"></span> |
| <span class="source-line-no">168</span><span id="line-168"> public BusyWaitProcedure(final Semaphore latch) {</span> |
| <span class="source-line-no">169</span><span id="line-169"> this.latch = latch;</span> |
| <span class="source-line-no">170</span><span id="line-170"> }</span> |
| <span class="source-line-no">171</span><span id="line-171"></span> |
| <span class="source-line-no">172</span><span id="line-172"> @Override</span> |
| <span class="source-line-no">173</span><span id="line-173"> protected Procedure[] execute(final TestProcEnv env) {</span> |
| <span class="source-line-no">174</span><span id="line-174"> try {</span> |
| <span class="source-line-no">175</span><span id="line-175"> LOG.info("worker started " + this);</span> |
| <span class="source-line-no">176</span><span id="line-176"> if (!latch.tryAcquire(1, 30, TimeUnit.SECONDS)) {</span> |
| <span class="source-line-no">177</span><span id="line-177"> throw new Exception("waited too long");</span> |
| <span class="source-line-no">178</span><span id="line-178"> }</span> |
| <span class="source-line-no">179</span><span id="line-179"></span> |
| <span class="source-line-no">180</span><span id="line-180"> LOG.info("worker step 2 " + this);</span> |
| <span class="source-line-no">181</span><span id="line-181"> if (!latch.tryAcquire(1, 30, TimeUnit.SECONDS)) {</span> |
| <span class="source-line-no">182</span><span id="line-182"> throw new Exception("waited too long");</span> |
| <span class="source-line-no">183</span><span id="line-183"> }</span> |
| <span class="source-line-no">184</span><span id="line-184"> } catch (Exception e) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> LOG.error("got unexpected exception", e);</span> |
| <span class="source-line-no">186</span><span id="line-186"> setFailure("BusyWaitProcedure", e);</span> |
| <span class="source-line-no">187</span><span id="line-187"> }</span> |
| <span class="source-line-no">188</span><span id="line-188"> return null;</span> |
| <span class="source-line-no">189</span><span id="line-189"> }</span> |
| <span class="source-line-no">190</span><span id="line-190"> }</span> |
| <span class="source-line-no">191</span><span id="line-191"></span> |
| <span class="source-line-no">192</span><span id="line-192"> private static class TestProcEnv {</span> |
| <span class="source-line-no">193</span><span id="line-193"> }</span> |
| <span class="source-line-no">194</span><span id="line-194">}</span> |
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