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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.util;</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 java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.InterruptedIOException;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.lang.reflect.Constructor;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.lang.reflect.InvocationTargetException;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.List;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.function.Supplier;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.master.HMaster;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.regionserver.HRegionServer;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.slf4j.Logger;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">034</span><span id="line-34"></span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;</span> |
| <span class="source-line-no">036</span><span id="line-36"></span> |
| <span class="source-line-no">037</span><span id="line-37">/**</span> |
| <span class="source-line-no">038</span><span id="line-38"> * Utility used running a cluster all in the one JVM.</span> |
| <span class="source-line-no">039</span><span id="line-39"> */</span> |
| <span class="source-line-no">040</span><span id="line-40">@InterfaceAudience.Private</span> |
| <span class="source-line-no">041</span><span id="line-41">public class JVMClusterUtil {</span> |
| <span class="source-line-no">042</span><span id="line-42"> private static final Logger LOG = LoggerFactory.getLogger(JVMClusterUtil.class);</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44"> /**</span> |
| <span class="source-line-no">045</span><span id="line-45"> * Datastructure to hold RegionServer Thread and RegionServer instance</span> |
| <span class="source-line-no">046</span><span id="line-46"> */</span> |
| <span class="source-line-no">047</span><span id="line-47"> public static class RegionServerThread extends Thread {</span> |
| <span class="source-line-no">048</span><span id="line-48"> private final HRegionServer regionServer;</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50"> public RegionServerThread(final HRegionServer r, final int index) {</span> |
| <span class="source-line-no">051</span><span id="line-51"> super(r, "RS:" + index + ";" + r.getServerName().toShortString());</span> |
| <span class="source-line-no">052</span><span id="line-52"> this.regionServer = r;</span> |
| <span class="source-line-no">053</span><span id="line-53"> }</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> /** Returns the region server */</span> |
| <span class="source-line-no">056</span><span id="line-56"> public HRegionServer getRegionServer() {</span> |
| <span class="source-line-no">057</span><span id="line-57"> return this.regionServer;</span> |
| <span class="source-line-no">058</span><span id="line-58"> }</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> /**</span> |
| <span class="source-line-no">061</span><span id="line-61"> * Block until the region server has come online, indicating it is ready to be used.</span> |
| <span class="source-line-no">062</span><span id="line-62"> */</span> |
| <span class="source-line-no">063</span><span id="line-63"> public void waitForServerOnline() {</span> |
| <span class="source-line-no">064</span><span id="line-64"> // The server is marked online after the init method completes inside of</span> |
| <span class="source-line-no">065</span><span id="line-65"> // the HRS#run method. HRS#init can fail for whatever region. In those</span> |
| <span class="source-line-no">066</span><span id="line-66"> // cases, we'll jump out of the run without setting online flag. Check</span> |
| <span class="source-line-no">067</span><span id="line-67"> // stopRequested so we don't wait here a flag that will never be flipped.</span> |
| <span class="source-line-no">068</span><span id="line-68"> regionServer.waitForServerOnline();</span> |
| <span class="source-line-no">069</span><span id="line-69"> }</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"> /**</span> |
| <span class="source-line-no">073</span><span id="line-73"> * Creates a {@link RegionServerThread}. Call 'start' on the returned thread to make it run.</span> |
| <span class="source-line-no">074</span><span id="line-74"> * @param c Configuration to use.</span> |
| <span class="source-line-no">075</span><span id="line-75"> * @param hrsc Class to create.</span> |
| <span class="source-line-no">076</span><span id="line-76"> * @param index Used distinguishing the object returned.</span> |
| <span class="source-line-no">077</span><span id="line-77"> * @return Region server added.</span> |
| <span class="source-line-no">078</span><span id="line-78"> */</span> |
| <span class="source-line-no">079</span><span id="line-79"> public static JVMClusterUtil.RegionServerThread createRegionServerThread(final Configuration c,</span> |
| <span class="source-line-no">080</span><span id="line-80"> final Class<? extends HRegionServer> hrsc, final int index) throws IOException {</span> |
| <span class="source-line-no">081</span><span id="line-81"> HRegionServer server;</span> |
| <span class="source-line-no">082</span><span id="line-82"> try {</span> |
| <span class="source-line-no">083</span><span id="line-83"> Constructor<? extends HRegionServer> ctor = hrsc.getConstructor(Configuration.class);</span> |
| <span class="source-line-no">084</span><span id="line-84"> ctor.setAccessible(true);</span> |
| <span class="source-line-no">085</span><span id="line-85"> server = ctor.newInstance(c);</span> |
| <span class="source-line-no">086</span><span id="line-86"> } catch (InvocationTargetException ite) {</span> |
| <span class="source-line-no">087</span><span id="line-87"> Throwable target = ite.getTargetException();</span> |
| <span class="source-line-no">088</span><span id="line-88"> throw new RuntimeException("Failed construction of RegionServer: " + hrsc.toString()</span> |
| <span class="source-line-no">089</span><span id="line-89"> + ((target.getCause() != null) ? target.getCause().getMessage() : ""), target);</span> |
| <span class="source-line-no">090</span><span id="line-90"> } catch (Exception e) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> throw new IOException(e);</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"> return new JVMClusterUtil.RegionServerThread(server, index);</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"></span> |
| <span class="source-line-no">096</span><span id="line-96"> /**</span> |
| <span class="source-line-no">097</span><span id="line-97"> * Datastructure to hold Master Thread and Master instance</span> |
| <span class="source-line-no">098</span><span id="line-98"> */</span> |
| <span class="source-line-no">099</span><span id="line-99"> public static class MasterThread extends Thread {</span> |
| <span class="source-line-no">100</span><span id="line-100"> private final HMaster master;</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> public MasterThread(final HMaster m, final int index) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> super(m, "M:" + index + ";" + m.getServerName().toShortString());</span> |
| <span class="source-line-no">104</span><span id="line-104"> this.master = m;</span> |
| <span class="source-line-no">105</span><span id="line-105"> }</span> |
| <span class="source-line-no">106</span><span id="line-106"></span> |
| <span class="source-line-no">107</span><span id="line-107"> /** Returns the master */</span> |
| <span class="source-line-no">108</span><span id="line-108"> public HMaster getMaster() {</span> |
| <span class="source-line-no">109</span><span id="line-109"> return this.master;</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"> }</span> |
| <span class="source-line-no">112</span><span id="line-112"></span> |
| <span class="source-line-no">113</span><span id="line-113"> /**</span> |
| <span class="source-line-no">114</span><span id="line-114"> * Creates a {@link MasterThread}. Call 'start' on the returned thread to make it run.</span> |
| <span class="source-line-no">115</span><span id="line-115"> * @param c Configuration to use.</span> |
| <span class="source-line-no">116</span><span id="line-116"> * @param hmc Class to create.</span> |
| <span class="source-line-no">117</span><span id="line-117"> * @param index Used distinguishing the object returned.</span> |
| <span class="source-line-no">118</span><span id="line-118"> * @return Master added.</span> |
| <span class="source-line-no">119</span><span id="line-119"> */</span> |
| <span class="source-line-no">120</span><span id="line-120"> public static JVMClusterUtil.MasterThread createMasterThread(final Configuration c,</span> |
| <span class="source-line-no">121</span><span id="line-121"> final Class<? extends HMaster> hmc, final int index) throws IOException {</span> |
| <span class="source-line-no">122</span><span id="line-122"> HMaster server;</span> |
| <span class="source-line-no">123</span><span id="line-123"> try {</span> |
| <span class="source-line-no">124</span><span id="line-124"> server = hmc.getConstructor(Configuration.class).newInstance(c);</span> |
| <span class="source-line-no">125</span><span id="line-125"> } catch (InvocationTargetException ite) {</span> |
| <span class="source-line-no">126</span><span id="line-126"> Throwable target = ite.getTargetException();</span> |
| <span class="source-line-no">127</span><span id="line-127"> throw new RuntimeException("Failed construction of Master: " + hmc.toString()</span> |
| <span class="source-line-no">128</span><span id="line-128"> + ((target.getCause() != null) ? target.getCause().getMessage() : ""), target);</span> |
| <span class="source-line-no">129</span><span id="line-129"> } catch (Exception e) {</span> |
| <span class="source-line-no">130</span><span id="line-130"> throw new IOException(e);</span> |
| <span class="source-line-no">131</span><span id="line-131"> }</span> |
| <span class="source-line-no">132</span><span id="line-132"> // Needed if a master based registry is configured for internal cluster connections. Here, we</span> |
| <span class="source-line-no">133</span><span id="line-133"> // just add the current master host port since we do not know other master addresses up front</span> |
| <span class="source-line-no">134</span><span id="line-134"> // in mini cluster tests.</span> |
| <span class="source-line-no">135</span><span id="line-135"> c.set(HConstants.MASTER_ADDRS_KEY,</span> |
| <span class="source-line-no">136</span><span id="line-136"> Preconditions.checkNotNull(server.getServerName().getAddress()).toString());</span> |
| <span class="source-line-no">137</span><span id="line-137"> return new JVMClusterUtil.MasterThread(server, index);</span> |
| <span class="source-line-no">138</span><span id="line-138"> }</span> |
| <span class="source-line-no">139</span><span id="line-139"></span> |
| <span class="source-line-no">140</span><span id="line-140"> private static JVMClusterUtil.MasterThread</span> |
| <span class="source-line-no">141</span><span id="line-141"> findActiveMaster(List<JVMClusterUtil.MasterThread> masters) {</span> |
| <span class="source-line-no">142</span><span id="line-142"> for (JVMClusterUtil.MasterThread t : masters) {</span> |
| <span class="source-line-no">143</span><span id="line-143"> if (t.master.isActiveMaster()) {</span> |
| <span class="source-line-no">144</span><span id="line-144"> return t;</span> |
| <span class="source-line-no">145</span><span id="line-145"> }</span> |
| <span class="source-line-no">146</span><span id="line-146"> }</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> return null;</span> |
| <span class="source-line-no">149</span><span id="line-149"> }</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"> * Start the cluster. Waits until there is a primary master initialized and returns its address.</span> |
| <span class="source-line-no">153</span><span id="line-153"> * @return Address to use contacting primary master.</span> |
| <span class="source-line-no">154</span><span id="line-154"> */</span> |
| <span class="source-line-no">155</span><span id="line-155"> public static String startup(final List<JVMClusterUtil.MasterThread> masters,</span> |
| <span class="source-line-no">156</span><span id="line-156"> final List<JVMClusterUtil.RegionServerThread> regionservers) throws IOException {</span> |
| <span class="source-line-no">157</span><span id="line-157"> // Implementation note: This method relies on timed sleeps in a loop. It's not great, and</span> |
| <span class="source-line-no">158</span><span id="line-158"> // should probably be re-written to use actual synchronization objects, but it's ok for now</span> |
| <span class="source-line-no">159</span><span id="line-159"></span> |
| <span class="source-line-no">160</span><span id="line-160"> Configuration configuration = null;</span> |
| <span class="source-line-no">161</span><span id="line-161"></span> |
| <span class="source-line-no">162</span><span id="line-162"> if (masters == null || masters.isEmpty()) {</span> |
| <span class="source-line-no">163</span><span id="line-163"> return null;</span> |
| <span class="source-line-no">164</span><span id="line-164"> }</span> |
| <span class="source-line-no">165</span><span id="line-165"></span> |
| <span class="source-line-no">166</span><span id="line-166"> for (JVMClusterUtil.MasterThread t : masters) {</span> |
| <span class="source-line-no">167</span><span id="line-167"> configuration = t.getMaster().getConfiguration();</span> |
| <span class="source-line-no">168</span><span id="line-168"> t.start();</span> |
| <span class="source-line-no">169</span><span id="line-169"> }</span> |
| <span class="source-line-no">170</span><span id="line-170"></span> |
| <span class="source-line-no">171</span><span id="line-171"> // Wait for an active master</span> |
| <span class="source-line-no">172</span><span id="line-172"> // having an active master before starting the region threads allows</span> |
| <span class="source-line-no">173</span><span id="line-173"> // then to succeed on their connection to master</span> |
| <span class="source-line-no">174</span><span id="line-174"> final int startTimeout = configuration != null</span> |
| <span class="source-line-no">175</span><span id="line-175"> ? Integer.parseInt(configuration.get("hbase.master.start.timeout.localHBaseCluster", "30000"))</span> |
| <span class="source-line-no">176</span><span id="line-176"> : 30000;</span> |
| <span class="source-line-no">177</span><span id="line-177"> waitForEvent(startTimeout, "active", () -> findActiveMaster(masters) != null);</span> |
| <span class="source-line-no">178</span><span id="line-178"></span> |
| <span class="source-line-no">179</span><span id="line-179"> if (regionservers != null) {</span> |
| <span class="source-line-no">180</span><span id="line-180"> for (JVMClusterUtil.RegionServerThread t : regionservers) {</span> |
| <span class="source-line-no">181</span><span id="line-181"> t.start();</span> |
| <span class="source-line-no">182</span><span id="line-182"> }</span> |
| <span class="source-line-no">183</span><span id="line-183"> }</span> |
| <span class="source-line-no">184</span><span id="line-184"></span> |
| <span class="source-line-no">185</span><span id="line-185"> // Wait for an active master to be initialized (implies being master)</span> |
| <span class="source-line-no">186</span><span id="line-186"> // with this, when we return the cluster is complete</span> |
| <span class="source-line-no">187</span><span id="line-187"> final int initTimeout = configuration != null</span> |
| <span class="source-line-no">188</span><span id="line-188"> ? Integer.parseInt(configuration.get("hbase.master.init.timeout.localHBaseCluster", "200000"))</span> |
| <span class="source-line-no">189</span><span id="line-189"> : 200000;</span> |
| <span class="source-line-no">190</span><span id="line-190"> waitForEvent(initTimeout, "initialized", () -> {</span> |
| <span class="source-line-no">191</span><span id="line-191"> JVMClusterUtil.MasterThread t = findActiveMaster(masters);</span> |
| <span class="source-line-no">192</span><span id="line-192"> // master thread should never be null at this point, but let's keep the check anyway</span> |
| <span class="source-line-no">193</span><span id="line-193"> return t != null && t.master.isInitialized();</span> |
| <span class="source-line-no">194</span><span id="line-194"> });</span> |
| <span class="source-line-no">195</span><span id="line-195"></span> |
| <span class="source-line-no">196</span><span id="line-196"> return findActiveMaster(masters).master.getServerName().toString();</span> |
| <span class="source-line-no">197</span><span id="line-197"> }</span> |
| <span class="source-line-no">198</span><span id="line-198"></span> |
| <span class="source-line-no">199</span><span id="line-199"> /**</span> |
| <span class="source-line-no">200</span><span id="line-200"> * Utility method to wait some time for an event to occur, and then return control to the caller.</span> |
| <span class="source-line-no">201</span><span id="line-201"> * @param millis How long to wait, in milliseconds.</span> |
| <span class="source-line-no">202</span><span id="line-202"> * @param action The action that we are waiting for. Will be used in log message if the event does</span> |
| <span class="source-line-no">203</span><span id="line-203"> * not occur.</span> |
| <span class="source-line-no">204</span><span id="line-204"> * @param check A Supplier that will be checked periodically to produce an updated true/false</span> |
| <span class="source-line-no">205</span><span id="line-205"> * result indicating if the expected event has happened or not.</span> |
| <span class="source-line-no">206</span><span id="line-206"> * @throws InterruptedIOException If we are interrupted while waiting for the event.</span> |
| <span class="source-line-no">207</span><span id="line-207"> * @throws RuntimeException If we reach the specified timeout while waiting for the event.</span> |
| <span class="source-line-no">208</span><span id="line-208"> */</span> |
| <span class="source-line-no">209</span><span id="line-209"> private static void waitForEvent(long millis, String action, Supplier<Boolean> check)</span> |
| <span class="source-line-no">210</span><span id="line-210"> throws InterruptedIOException {</span> |
| <span class="source-line-no">211</span><span id="line-211"> long end = System.nanoTime() + TimeUnit.MILLISECONDS.toNanos(millis);</span> |
| <span class="source-line-no">212</span><span id="line-212"></span> |
| <span class="source-line-no">213</span><span id="line-213"> while (true) {</span> |
| <span class="source-line-no">214</span><span id="line-214"> if (check.get()) {</span> |
| <span class="source-line-no">215</span><span id="line-215"> return;</span> |
| <span class="source-line-no">216</span><span id="line-216"> }</span> |
| <span class="source-line-no">217</span><span id="line-217"></span> |
| <span class="source-line-no">218</span><span id="line-218"> if (System.nanoTime() > end) {</span> |
| <span class="source-line-no">219</span><span id="line-219"> String msg = "Master not " + action + " after " + millis + "ms";</span> |
| <span class="source-line-no">220</span><span id="line-220"> Threads.printThreadInfo(System.out, "Thread dump because: " + msg);</span> |
| <span class="source-line-no">221</span><span id="line-221"> throw new RuntimeException(msg);</span> |
| <span class="source-line-no">222</span><span id="line-222"> }</span> |
| <span class="source-line-no">223</span><span id="line-223"></span> |
| <span class="source-line-no">224</span><span id="line-224"> try {</span> |
| <span class="source-line-no">225</span><span id="line-225"> Thread.sleep(100);</span> |
| <span class="source-line-no">226</span><span id="line-226"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">227</span><span id="line-227"> throw (InterruptedIOException) new InterruptedIOException().initCause(e);</span> |
| <span class="source-line-no">228</span><span id="line-228"> }</span> |
| <span class="source-line-no">229</span><span id="line-229"> }</span> |
| <span class="source-line-no">230</span><span id="line-230"></span> |
| <span class="source-line-no">231</span><span id="line-231"> }</span> |
| <span class="source-line-no">232</span><span id="line-232"></span> |
| <span class="source-line-no">233</span><span id="line-233"> /**</span> |
| <span class="source-line-no">234</span><span id="line-234"> * */</span> |
| <span class="source-line-no">235</span><span id="line-235"> public static void shutdown(final List<MasterThread> masters,</span> |
| <span class="source-line-no">236</span><span id="line-236"> final List<RegionServerThread> regionservers) {</span> |
| <span class="source-line-no">237</span><span id="line-237"> LOG.debug("Shutting down HBase Cluster");</span> |
| <span class="source-line-no">238</span><span id="line-238"> if (masters != null) {</span> |
| <span class="source-line-no">239</span><span id="line-239"> // Do backups first.</span> |
| <span class="source-line-no">240</span><span id="line-240"> JVMClusterUtil.MasterThread activeMaster = null;</span> |
| <span class="source-line-no">241</span><span id="line-241"> for (JVMClusterUtil.MasterThread t : masters) {</span> |
| <span class="source-line-no">242</span><span id="line-242"> // Master was killed but could be still considered as active. Check first if it is stopped.</span> |
| <span class="source-line-no">243</span><span id="line-243"> if (!t.master.isStopped()) {</span> |
| <span class="source-line-no">244</span><span id="line-244"> if (!t.master.isActiveMaster()) {</span> |
| <span class="source-line-no">245</span><span id="line-245"> try {</span> |
| <span class="source-line-no">246</span><span id="line-246"> t.master.stopMaster();</span> |
| <span class="source-line-no">247</span><span id="line-247"> } catch (IOException e) {</span> |
| <span class="source-line-no">248</span><span id="line-248"> LOG.error("Exception occurred while stopping master", e);</span> |
| <span class="source-line-no">249</span><span id="line-249"> }</span> |
| <span class="source-line-no">250</span><span id="line-250"> LOG.info("Stopped backup Master {} is stopped: {}", t.master.hashCode(),</span> |
| <span class="source-line-no">251</span><span id="line-251"> t.master.isStopped());</span> |
| <span class="source-line-no">252</span><span id="line-252"> } else {</span> |
| <span class="source-line-no">253</span><span id="line-253"> if (activeMaster != null) {</span> |
| <span class="source-line-no">254</span><span id="line-254"> LOG.warn("Found more than 1 active master, hash {}", activeMaster.master.hashCode());</span> |
| <span class="source-line-no">255</span><span id="line-255"> }</span> |
| <span class="source-line-no">256</span><span id="line-256"> activeMaster = t;</span> |
| <span class="source-line-no">257</span><span id="line-257"> LOG.debug("Found active master hash={}, stopped={}", t.master.hashCode(),</span> |
| <span class="source-line-no">258</span><span id="line-258"> t.master.isStopped());</span> |
| <span class="source-line-no">259</span><span id="line-259"> }</span> |
| <span class="source-line-no">260</span><span id="line-260"> }</span> |
| <span class="source-line-no">261</span><span id="line-261"> }</span> |
| <span class="source-line-no">262</span><span id="line-262"> // Do active after.</span> |
| <span class="source-line-no">263</span><span id="line-263"> if (activeMaster != null) {</span> |
| <span class="source-line-no">264</span><span id="line-264"> try {</span> |
| <span class="source-line-no">265</span><span id="line-265"> activeMaster.master.shutdown();</span> |
| <span class="source-line-no">266</span><span id="line-266"> } catch (IOException e) {</span> |
| <span class="source-line-no">267</span><span id="line-267"> LOG.error("Exception occurred in HMaster.shutdown()", e);</span> |
| <span class="source-line-no">268</span><span id="line-268"> }</span> |
| <span class="source-line-no">269</span><span id="line-269"> }</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271"> boolean wasInterrupted = false;</span> |
| <span class="source-line-no">272</span><span id="line-272"> final long maxTime = EnvironmentEdgeManager.currentTime() + 30 * 1000;</span> |
| <span class="source-line-no">273</span><span id="line-273"> if (regionservers != null) {</span> |
| <span class="source-line-no">274</span><span id="line-274"> // first try nicely.</span> |
| <span class="source-line-no">275</span><span id="line-275"> for (RegionServerThread t : regionservers) {</span> |
| <span class="source-line-no">276</span><span id="line-276"> t.getRegionServer().stop("Shutdown requested");</span> |
| <span class="source-line-no">277</span><span id="line-277"> }</span> |
| <span class="source-line-no">278</span><span id="line-278"> for (RegionServerThread t : regionservers) {</span> |
| <span class="source-line-no">279</span><span id="line-279"> long now = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">280</span><span id="line-280"> if (t.isAlive() && !wasInterrupted && now < maxTime) {</span> |
| <span class="source-line-no">281</span><span id="line-281"> try {</span> |
| <span class="source-line-no">282</span><span id="line-282"> t.join(maxTime - now);</span> |
| <span class="source-line-no">283</span><span id="line-283"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">284</span><span id="line-284"> LOG.info("Got InterruptedException on shutdown - "</span> |
| <span class="source-line-no">285</span><span id="line-285"> + "not waiting anymore on region server ends", e);</span> |
| <span class="source-line-no">286</span><span id="line-286"> wasInterrupted = true; // someone wants us to speed up.</span> |
| <span class="source-line-no">287</span><span id="line-287"> }</span> |
| <span class="source-line-no">288</span><span id="line-288"> }</span> |
| <span class="source-line-no">289</span><span id="line-289"> }</span> |
| <span class="source-line-no">290</span><span id="line-290"></span> |
| <span class="source-line-no">291</span><span id="line-291"> // Let's try to interrupt the remaining threads if any.</span> |
| <span class="source-line-no">292</span><span id="line-292"> for (int i = 0; i < 100; ++i) {</span> |
| <span class="source-line-no">293</span><span id="line-293"> boolean atLeastOneLiveServer = false;</span> |
| <span class="source-line-no">294</span><span id="line-294"> for (RegionServerThread t : regionservers) {</span> |
| <span class="source-line-no">295</span><span id="line-295"> if (t.isAlive()) {</span> |
| <span class="source-line-no">296</span><span id="line-296"> atLeastOneLiveServer = true;</span> |
| <span class="source-line-no">297</span><span id="line-297"> try {</span> |
| <span class="source-line-no">298</span><span id="line-298"> LOG.warn("RegionServerThreads remaining, give one more chance before interrupting");</span> |
| <span class="source-line-no">299</span><span id="line-299"> t.join(1000);</span> |
| <span class="source-line-no">300</span><span id="line-300"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">301</span><span id="line-301"> wasInterrupted = true;</span> |
| <span class="source-line-no">302</span><span id="line-302"> }</span> |
| <span class="source-line-no">303</span><span id="line-303"> }</span> |
| <span class="source-line-no">304</span><span id="line-304"> }</span> |
| <span class="source-line-no">305</span><span id="line-305"> if (!atLeastOneLiveServer) break;</span> |
| <span class="source-line-no">306</span><span id="line-306"> for (RegionServerThread t : regionservers) {</span> |
| <span class="source-line-no">307</span><span id="line-307"> if (t.isAlive()) {</span> |
| <span class="source-line-no">308</span><span id="line-308"> LOG.warn("RegionServerThreads taking too long to stop, interrupting; thread dump "</span> |
| <span class="source-line-no">309</span><span id="line-309"> + "if > 3 attempts: i=" + i);</span> |
| <span class="source-line-no">310</span><span id="line-310"> if (i > 3) {</span> |
| <span class="source-line-no">311</span><span id="line-311"> Threads.printThreadInfo(System.out, "Thread dump " + t.getName());</span> |
| <span class="source-line-no">312</span><span id="line-312"> }</span> |
| <span class="source-line-no">313</span><span id="line-313"> t.interrupt();</span> |
| <span class="source-line-no">314</span><span id="line-314"> }</span> |
| <span class="source-line-no">315</span><span id="line-315"> }</span> |
| <span class="source-line-no">316</span><span id="line-316"> }</span> |
| <span class="source-line-no">317</span><span id="line-317"> }</span> |
| <span class="source-line-no">318</span><span id="line-318"></span> |
| <span class="source-line-no">319</span><span id="line-319"> if (masters != null) {</span> |
| <span class="source-line-no">320</span><span id="line-320"> for (JVMClusterUtil.MasterThread t : masters) {</span> |
| <span class="source-line-no">321</span><span id="line-321"> while (t.master.isAlive() && !wasInterrupted) {</span> |
| <span class="source-line-no">322</span><span id="line-322"> try {</span> |
| <span class="source-line-no">323</span><span id="line-323"> // The below has been replaced to debug sometime hangs on end of</span> |
| <span class="source-line-no">324</span><span id="line-324"> // tests.</span> |
| <span class="source-line-no">325</span><span id="line-325"> // this.master.join():</span> |
| <span class="source-line-no">326</span><span id="line-326"> Threads.threadDumpingIsAlive(t.master);</span> |
| <span class="source-line-no">327</span><span id="line-327"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">328</span><span id="line-328"> LOG.info(</span> |
| <span class="source-line-no">329</span><span id="line-329"> "Got InterruptedException on shutdown - " + "not waiting anymore on master ends", e);</span> |
| <span class="source-line-no">330</span><span id="line-330"> wasInterrupted = true;</span> |
| <span class="source-line-no">331</span><span id="line-331"> }</span> |
| <span class="source-line-no">332</span><span id="line-332"> }</span> |
| <span class="source-line-no">333</span><span id="line-333"> }</span> |
| <span class="source-line-no">334</span><span id="line-334"> }</span> |
| <span class="source-line-no">335</span><span id="line-335"> LOG.info("Shutdown of " + ((masters != null) ? masters.size() : "0") + " master(s) and "</span> |
| <span class="source-line-no">336</span><span id="line-336"> + ((regionservers != null) ? regionservers.size() : "0") + " regionserver(s) "</span> |
| <span class="source-line-no">337</span><span id="line-337"> + (wasInterrupted ? "interrupted" : "complete"));</span> |
| <span class="source-line-no">338</span><span id="line-338"></span> |
| <span class="source-line-no">339</span><span id="line-339"> if (wasInterrupted) {</span> |
| <span class="source-line-no">340</span><span id="line-340"> Thread.currentThread().interrupt();</span> |
| <span class="source-line-no">341</span><span id="line-341"> }</span> |
| <span class="source-line-no">342</span><span id="line-342"> }</span> |
| <span class="source-line-no">343</span><span id="line-343">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
