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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;</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.util.EnumSet;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.List;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Optional;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.concurrent.atomic.AtomicInteger;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.ClusterMetrics.Option;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.Waiter.Predicate;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.client.Admin;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.coprocessor.MasterCoprocessor;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.coprocessor.MasterObserver;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.coprocessor.ObserverContext;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.master.HMaster;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.regionserver.HRegionServer;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.testclassification.MediumTests;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.util.JVMClusterUtil.MasterThread;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.util.JVMClusterUtil.RegionServerThread;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.junit.AfterClass;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.junit.Assert;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.junit.BeforeClass;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.junit.ClassRule;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.junit.Test;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46">/**</span> |
| <span class="source-line-no">047</span><span id="line-47"> * Test the ClusterStatus.</span> |
| <span class="source-line-no">048</span><span id="line-48"> */</span> |
| <span class="source-line-no">049</span><span id="line-49">@Category(MediumTests.class)</span> |
| <span class="source-line-no">050</span><span id="line-50">public class TestClientClusterStatus {</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52"> @ClassRule</span> |
| <span class="source-line-no">053</span><span id="line-53"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">054</span><span id="line-54"> HBaseClassTestRule.forClass(TestClientClusterStatus.class);</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> private static HBaseTestingUtil UTIL;</span> |
| <span class="source-line-no">057</span><span id="line-57"> private static Admin ADMIN;</span> |
| <span class="source-line-no">058</span><span id="line-58"> private final static int SLAVES = 5;</span> |
| <span class="source-line-no">059</span><span id="line-59"> private final static int MASTERS = 3;</span> |
| <span class="source-line-no">060</span><span id="line-60"> private static SingleProcessHBaseCluster CLUSTER;</span> |
| <span class="source-line-no">061</span><span id="line-61"> private static HRegionServer DEAD;</span> |
| <span class="source-line-no">062</span><span id="line-62"></span> |
| <span class="source-line-no">063</span><span id="line-63"> @BeforeClass</span> |
| <span class="source-line-no">064</span><span id="line-64"> public static void setUpBeforeClass() throws Exception {</span> |
| <span class="source-line-no">065</span><span id="line-65"> Configuration conf = HBaseConfiguration.create();</span> |
| <span class="source-line-no">066</span><span id="line-66"> conf.set(CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY, MyObserver.class.getName());</span> |
| <span class="source-line-no">067</span><span id="line-67"> UTIL = new HBaseTestingUtil(conf);</span> |
| <span class="source-line-no">068</span><span id="line-68"> StartTestingClusterOption option = StartTestingClusterOption.builder().numMasters(MASTERS)</span> |
| <span class="source-line-no">069</span><span id="line-69"> .numRegionServers(SLAVES).numDataNodes(SLAVES).build();</span> |
| <span class="source-line-no">070</span><span id="line-70"> UTIL.startMiniCluster(option);</span> |
| <span class="source-line-no">071</span><span id="line-71"> CLUSTER = UTIL.getHBaseCluster();</span> |
| <span class="source-line-no">072</span><span id="line-72"> CLUSTER.waitForActiveAndReadyMaster();</span> |
| <span class="source-line-no">073</span><span id="line-73"> ADMIN = UTIL.getAdmin();</span> |
| <span class="source-line-no">074</span><span id="line-74"> // Kill one region server</span> |
| <span class="source-line-no">075</span><span id="line-75"> List<RegionServerThread> rsts = CLUSTER.getLiveRegionServerThreads();</span> |
| <span class="source-line-no">076</span><span id="line-76"> RegionServerThread rst = rsts.get(rsts.size() - 1);</span> |
| <span class="source-line-no">077</span><span id="line-77"> DEAD = rst.getRegionServer();</span> |
| <span class="source-line-no">078</span><span id="line-78"> DEAD.stop("Test dead servers status");</span> |
| <span class="source-line-no">079</span><span id="line-79"> while (rst.isAlive()) {</span> |
| <span class="source-line-no">080</span><span id="line-80"> Thread.sleep(500);</span> |
| <span class="source-line-no">081</span><span id="line-81"> }</span> |
| <span class="source-line-no">082</span><span id="line-82"> }</span> |
| <span class="source-line-no">083</span><span id="line-83"></span> |
| <span class="source-line-no">084</span><span id="line-84"> @Test</span> |
| <span class="source-line-no">085</span><span id="line-85"> public void testNone() throws Exception {</span> |
| <span class="source-line-no">086</span><span id="line-86"> ClusterMetrics status0 = ADMIN.getClusterMetrics(EnumSet.allOf(Option.class));</span> |
| <span class="source-line-no">087</span><span id="line-87"> ClusterMetrics status1 = ADMIN.getClusterMetrics(EnumSet.noneOf(Option.class));</span> |
| <span class="source-line-no">088</span><span id="line-88"> // Do a rough compare. More specific compares can fail because all regions not deployed yet</span> |
| <span class="source-line-no">089</span><span id="line-89"> // or more requests than expected.</span> |
| <span class="source-line-no">090</span><span id="line-90"> Assert.assertEquals(status0.getLiveServerMetrics().size(),</span> |
| <span class="source-line-no">091</span><span id="line-91"> status1.getLiveServerMetrics().size());</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> @Test</span> |
| <span class="source-line-no">095</span><span id="line-95"> public void testLiveAndDeadServersStatus() throws Exception {</span> |
| <span class="source-line-no">096</span><span id="line-96"> // Count the number of live regionservers</span> |
| <span class="source-line-no">097</span><span id="line-97"> List<RegionServerThread> regionserverThreads = CLUSTER.getLiveRegionServerThreads();</span> |
| <span class="source-line-no">098</span><span id="line-98"> int numRs = 0;</span> |
| <span class="source-line-no">099</span><span id="line-99"> int len = regionserverThreads.size();</span> |
| <span class="source-line-no">100</span><span id="line-100"> for (int i = 0; i < len; i++) {</span> |
| <span class="source-line-no">101</span><span id="line-101"> if (regionserverThreads.get(i).isAlive()) {</span> |
| <span class="source-line-no">102</span><span id="line-102"> numRs++;</span> |
| <span class="source-line-no">103</span><span id="line-103"> }</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"> // Depending on the (random) order of unit execution we may run this unit before the</span> |
| <span class="source-line-no">106</span><span id="line-106"> // minicluster is fully up and recovered from the RS shutdown done during test init.</span> |
| <span class="source-line-no">107</span><span id="line-107"> Waiter.waitFor(CLUSTER.getConfiguration(), 10 * 1000, 100, new Predicate<Exception>() {</span> |
| <span class="source-line-no">108</span><span id="line-108"> @Override</span> |
| <span class="source-line-no">109</span><span id="line-109"> public boolean evaluate() throws Exception {</span> |
| <span class="source-line-no">110</span><span id="line-110"> ClusterMetrics status = ADMIN.getClusterMetrics(EnumSet.of(Option.LIVE_SERVERS));</span> |
| <span class="source-line-no">111</span><span id="line-111"> Assert.assertNotNull(status);</span> |
| <span class="source-line-no">112</span><span id="line-112"> return status.getRegionCount() > 0;</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114"> });</span> |
| <span class="source-line-no">115</span><span id="line-115"> // Retrieve live servers and dead servers info.</span> |
| <span class="source-line-no">116</span><span id="line-116"> EnumSet<Option> options =</span> |
| <span class="source-line-no">117</span><span id="line-117"> EnumSet.of(Option.LIVE_SERVERS, Option.DEAD_SERVERS, Option.SERVERS_NAME);</span> |
| <span class="source-line-no">118</span><span id="line-118"> ClusterMetrics status = ADMIN.getClusterMetrics(options);</span> |
| <span class="source-line-no">119</span><span id="line-119"> Assert.assertNotNull(status);</span> |
| <span class="source-line-no">120</span><span id="line-120"> Assert.assertNotNull(status.getLiveServerMetrics().keySet());</span> |
| <span class="source-line-no">121</span><span id="line-121"> // exclude a dead region server</span> |
| <span class="source-line-no">122</span><span id="line-122"> Assert.assertEquals(SLAVES - 1, numRs);</span> |
| <span class="source-line-no">123</span><span id="line-123"> // live servers = nums of regionservers</span> |
| <span class="source-line-no">124</span><span id="line-124"> // By default, HMaster don't carry any regions so it won't report its load.</span> |
| <span class="source-line-no">125</span><span id="line-125"> // Hence, it won't be in the server list.</span> |
| <span class="source-line-no">126</span><span id="line-126"> Assert.assertEquals(status.getLiveServerMetrics().keySet().size(), numRs);</span> |
| <span class="source-line-no">127</span><span id="line-127"> Assert.assertTrue(status.getRegionCount() > 0);</span> |
| <span class="source-line-no">128</span><span id="line-128"> Assert.assertNotNull(status.getDeadServerNames());</span> |
| <span class="source-line-no">129</span><span id="line-129"> Assert.assertEquals(1, status.getDeadServerNames().size());</span> |
| <span class="source-line-no">130</span><span id="line-130"> ServerName deadServerName = status.getDeadServerNames().iterator().next();</span> |
| <span class="source-line-no">131</span><span id="line-131"> Assert.assertEquals(DEAD.getServerName(), deadServerName);</span> |
| <span class="source-line-no">132</span><span id="line-132"> Assert.assertNotNull(status.getServersName());</span> |
| <span class="source-line-no">133</span><span id="line-133"> Assert.assertEquals(numRs, status.getServersName().size());</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"></span> |
| <span class="source-line-no">136</span><span id="line-136"> @Test</span> |
| <span class="source-line-no">137</span><span id="line-137"> public void testMasterAndBackupMastersStatus() throws Exception {</span> |
| <span class="source-line-no">138</span><span id="line-138"> // get all the master threads</span> |
| <span class="source-line-no">139</span><span id="line-139"> List<MasterThread> masterThreads = CLUSTER.getMasterThreads();</span> |
| <span class="source-line-no">140</span><span id="line-140"> int numActive = 0;</span> |
| <span class="source-line-no">141</span><span id="line-141"> int activeIndex = 0;</span> |
| <span class="source-line-no">142</span><span id="line-142"> ServerName activeName = null;</span> |
| <span class="source-line-no">143</span><span id="line-143"> HMaster active = null;</span> |
| <span class="source-line-no">144</span><span id="line-144"> for (int i = 0; i < masterThreads.size(); i++) {</span> |
| <span class="source-line-no">145</span><span id="line-145"> if (masterThreads.get(i).getMaster().isActiveMaster()) {</span> |
| <span class="source-line-no">146</span><span id="line-146"> numActive++;</span> |
| <span class="source-line-no">147</span><span id="line-147"> activeIndex = i;</span> |
| <span class="source-line-no">148</span><span id="line-148"> active = masterThreads.get(activeIndex).getMaster();</span> |
| <span class="source-line-no">149</span><span id="line-149"> activeName = active.getServerName();</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"> Assert.assertNotNull(active);</span> |
| <span class="source-line-no">153</span><span id="line-153"> Assert.assertEquals(1, numActive);</span> |
| <span class="source-line-no">154</span><span id="line-154"> Assert.assertEquals(MASTERS, masterThreads.size());</span> |
| <span class="source-line-no">155</span><span id="line-155"> // Retrieve master and backup masters infos only.</span> |
| <span class="source-line-no">156</span><span id="line-156"> EnumSet<Option> options = EnumSet.of(Option.MASTER, Option.BACKUP_MASTERS);</span> |
| <span class="source-line-no">157</span><span id="line-157"> ClusterMetrics status = ADMIN.getClusterMetrics(options);</span> |
| <span class="source-line-no">158</span><span id="line-158"> Assert.assertTrue(status.getMasterName().equals(activeName));</span> |
| <span class="source-line-no">159</span><span id="line-159"> Assert.assertEquals(MASTERS - 1, status.getBackupMasterNames().size());</span> |
| <span class="source-line-no">160</span><span id="line-160"> }</span> |
| <span class="source-line-no">161</span><span id="line-161"></span> |
| <span class="source-line-no">162</span><span id="line-162"> @Test</span> |
| <span class="source-line-no">163</span><span id="line-163"> public void testOtherStatusInfos() throws Exception {</span> |
| <span class="source-line-no">164</span><span id="line-164"> EnumSet<Option> options = EnumSet.of(Option.MASTER_COPROCESSORS, Option.HBASE_VERSION,</span> |
| <span class="source-line-no">165</span><span id="line-165"> Option.CLUSTER_ID, Option.BALANCER_ON);</span> |
| <span class="source-line-no">166</span><span id="line-166"> ClusterMetrics status = ADMIN.getClusterMetrics(options);</span> |
| <span class="source-line-no">167</span><span id="line-167"> Assert.assertTrue(status.getMasterCoprocessorNames().size() == 1);</span> |
| <span class="source-line-no">168</span><span id="line-168"> Assert.assertNotNull(status.getHBaseVersion());</span> |
| <span class="source-line-no">169</span><span id="line-169"> Assert.assertNotNull(status.getClusterId());</span> |
| <span class="source-line-no">170</span><span id="line-170"> Assert.assertTrue(status.getAverageLoad() == 0.0);</span> |
| <span class="source-line-no">171</span><span id="line-171"> Assert.assertNotNull(status.getBalancerOn());</span> |
| <span class="source-line-no">172</span><span id="line-172"> }</span> |
| <span class="source-line-no">173</span><span id="line-173"></span> |
| <span class="source-line-no">174</span><span id="line-174"> @AfterClass</span> |
| <span class="source-line-no">175</span><span id="line-175"> public static void tearDownAfterClass() throws Exception {</span> |
| <span class="source-line-no">176</span><span id="line-176"> if (ADMIN != null) ADMIN.close();</span> |
| <span class="source-line-no">177</span><span id="line-177"> UTIL.shutdownMiniCluster();</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"> @Test</span> |
| <span class="source-line-no">181</span><span id="line-181"> public void testObserver() throws IOException {</span> |
| <span class="source-line-no">182</span><span id="line-182"> int preCount = MyObserver.PRE_COUNT.get();</span> |
| <span class="source-line-no">183</span><span id="line-183"> int postCount = MyObserver.POST_COUNT.get();</span> |
| <span class="source-line-no">184</span><span id="line-184"> Assert.assertTrue(ADMIN.getClusterMetrics().getMasterCoprocessorNames().stream()</span> |
| <span class="source-line-no">185</span><span id="line-185"> .anyMatch(s -> s.equals(MyObserver.class.getSimpleName())));</span> |
| <span class="source-line-no">186</span><span id="line-186"> Assert.assertEquals(preCount + 1, MyObserver.PRE_COUNT.get());</span> |
| <span class="source-line-no">187</span><span id="line-187"> Assert.assertEquals(postCount + 1, MyObserver.POST_COUNT.get());</span> |
| <span class="source-line-no">188</span><span id="line-188"> }</span> |
| <span class="source-line-no">189</span><span id="line-189"></span> |
| <span class="source-line-no">190</span><span id="line-190"> public static class MyObserver implements MasterCoprocessor, MasterObserver {</span> |
| <span class="source-line-no">191</span><span id="line-191"> private static final AtomicInteger PRE_COUNT = new AtomicInteger(0);</span> |
| <span class="source-line-no">192</span><span id="line-192"> private static final AtomicInteger POST_COUNT = new AtomicInteger(0);</span> |
| <span class="source-line-no">193</span><span id="line-193"></span> |
| <span class="source-line-no">194</span><span id="line-194"> @Override</span> |
| <span class="source-line-no">195</span><span id="line-195"> public Optional<MasterObserver> getMasterObserver() {</span> |
| <span class="source-line-no">196</span><span id="line-196"> return Optional.of(this);</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"> @Override</span> |
| <span class="source-line-no">200</span><span id="line-200"> public void preGetClusterMetrics(ObserverContext<MasterCoprocessorEnvironment> ctx)</span> |
| <span class="source-line-no">201</span><span id="line-201"> throws IOException {</span> |
| <span class="source-line-no">202</span><span id="line-202"> PRE_COUNT.incrementAndGet();</span> |
| <span class="source-line-no">203</span><span id="line-203"> }</span> |
| <span class="source-line-no">204</span><span id="line-204"></span> |
| <span class="source-line-no">205</span><span id="line-205"> @Override</span> |
| <span class="source-line-no">206</span><span id="line-206"> public void postGetClusterMetrics(ObserverContext<MasterCoprocessorEnvironment> ctx,</span> |
| <span class="source-line-no">207</span><span id="line-207"> ClusterMetrics status) throws IOException {</span> |
| <span class="source-line-no">208</span><span id="line-208"> POST_COUNT.incrementAndGet();</span> |
| <span class="source-line-no">209</span><span id="line-209"> }</span> |
| <span class="source-line-no">210</span><span id="line-210"> }</span> |
| <span class="source-line-no">211</span><span id="line-211">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
