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| <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;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.EnumSet;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Optional;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.ClusterMetrics.Option;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.Waiter.Predicate;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.coprocessor.MasterCoprocessor;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.coprocessor.MasterObserver;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.master.HMaster;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.JVMClusterUtil.MasterThread;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.JVMClusterUtil.RegionServerThread;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.junit.AfterClass;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.junit.Assert;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.junit.BeforeClass;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.junit.ClassRule;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.junit.Test;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.junit.experimental.categories.Category;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span><a name="line.45"></a> |
| <span class="sourceLineNo">046</span>/**<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * Test the ClusterStatus.<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> */<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>@Category(MediumTests.class)<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>public class TestClientClusterStatus {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> @ClassRule<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> HBaseClassTestRule.forClass(TestClientClusterStatus.class);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> private static HBaseTestingUtility UTIL;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private static Admin ADMIN;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private final static int SLAVES = 5;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> private final static int MASTERS = 3;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private static MiniHBaseCluster CLUSTER;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> private static HRegionServer DEAD;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> @BeforeClass<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> public static void setUpBeforeClass() throws Exception {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> Configuration conf = HBaseConfiguration.create();<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> conf.set(CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY, MyObserver.class.getName());<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> UTIL = new HBaseTestingUtility(conf);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> StartMiniClusterOption option = StartMiniClusterOption.builder()<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> .numMasters(MASTERS).numRegionServers(SLAVES).numDataNodes(SLAVES).build();<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> UTIL.startMiniCluster(option);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> CLUSTER = UTIL.getHBaseCluster();<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> CLUSTER.waitForActiveAndReadyMaster();<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> ADMIN = UTIL.getAdmin();<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> // Kill one region server<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> List<RegionServerThread> rsts = CLUSTER.getLiveRegionServerThreads();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> RegionServerThread rst = rsts.get(rsts.size() - 1);<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> DEAD = rst.getRegionServer();<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> DEAD.stop("Test dead servers status");<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> while (rst.isAlive()) {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> Thread.sleep(500);<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<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> @Test<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> public void testNone() throws Exception {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> ClusterMetrics status0 = ADMIN.getClusterMetrics(EnumSet.allOf(Option.class));<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> ClusterMetrics status1 = ADMIN.getClusterMetrics(EnumSet.noneOf(Option.class));<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> // Do a rough compare. More specific compares can fail because all regions not deployed yet<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> // or more requests than expected.<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> Assert.assertEquals(status0.getLiveServerMetrics().size(),<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> status1.getLiveServerMetrics().size());<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> @Test<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> public void testLiveAndDeadServersStatus() throws Exception {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> // Count the number of live regionservers<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> List<RegionServerThread> regionserverThreads = CLUSTER.getLiveRegionServerThreads();<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> int numRs = 0;<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> int len = regionserverThreads.size();<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> for (int i = 0; i < len; i++) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> if (regionserverThreads.get(i).isAlive()) {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> numRs++;<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // Depending on the (random) order of unit execution we may run this unit before the<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> // minicluster is fully up and recovered from the RS shutdown done during test init.<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> Waiter.waitFor(CLUSTER.getConfiguration(), 10 * 1000, 100, new Predicate<Exception>() {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> @Override<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> public boolean evaluate() throws Exception {<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> ClusterMetrics status = ADMIN.getClusterMetrics(EnumSet.of(Option.LIVE_SERVERS));<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> Assert.assertNotNull(status);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> return status.getRegionCount() > 0;<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> });<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> // Retrieve live servers and dead servers info.<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> EnumSet<Option> options =<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> EnumSet.of(Option.LIVE_SERVERS, Option.DEAD_SERVERS, Option.SERVERS_NAME);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> ClusterMetrics status = ADMIN.getClusterMetrics(options);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> Assert.assertNotNull(status);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> Assert.assertNotNull(status.getLiveServerMetrics().keySet());<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> // exclude a dead region server<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> Assert.assertEquals(SLAVES -1, numRs);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // live servers = nums of regionservers<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // By default, HMaster don't carry any regions so it won't report its load.<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // Hence, it won't be in the server list.<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> Assert.assertEquals(status.getLiveServerMetrics().keySet().size(), numRs);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> Assert.assertTrue(status.getRegionCount() > 0);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> Assert.assertNotNull(status.getDeadServerNames());<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> Assert.assertEquals(1, status.getDeadServerNames().size());<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> ServerName deadServerName = status.getDeadServerNames().iterator().next();<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> Assert.assertEquals(DEAD.getServerName(), deadServerName);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> Assert.assertNotNull(status.getServersName());<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> Assert.assertEquals(numRs, status.getServersName().size());<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> @Test<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> public void testMasterAndBackupMastersStatus() throws Exception {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> // get all the master threads<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> List<MasterThread> masterThreads = CLUSTER.getMasterThreads();<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> int numActive = 0;<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> int activeIndex = 0;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> ServerName activeName = null;<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> HMaster active = null;<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> for (int i = 0; i < masterThreads.size(); i++) {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> if (masterThreads.get(i).getMaster().isActiveMaster()) {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> numActive++;<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> activeIndex = i;<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> active = masterThreads.get(activeIndex).getMaster();<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> activeName = active.getServerName();<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> }<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> }<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> Assert.assertNotNull(active);<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> Assert.assertEquals(1, numActive);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> Assert.assertEquals(MASTERS, masterThreads.size());<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> // Retrieve master and backup masters infos only.<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> EnumSet<Option> options = EnumSet.of(Option.MASTER, Option.BACKUP_MASTERS);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> ClusterMetrics status = ADMIN.getClusterMetrics(options);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> Assert.assertTrue(status.getMasterName().equals(activeName));<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> Assert.assertEquals(MASTERS - 1, status.getBackupMasterNames().size());<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> @Test<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> public void testOtherStatusInfos() throws Exception {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> EnumSet<Option> options =<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> EnumSet.of(Option.MASTER_COPROCESSORS, Option.HBASE_VERSION,<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> Option.CLUSTER_ID, Option.BALANCER_ON);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> ClusterMetrics status = ADMIN.getClusterMetrics(options);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> Assert.assertTrue(status.getMasterCoprocessorNames().size() == 1);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> Assert.assertNotNull(status.getHBaseVersion());<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> Assert.assertNotNull(status.getClusterId());<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> Assert.assertTrue(status.getAverageLoad() == 0.0);<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> Assert.assertNotNull(status.getBalancerOn());<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span><a name="line.174"></a> |
| <span class="sourceLineNo">175</span> @AfterClass<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> public static void tearDownAfterClass() throws Exception {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> if (ADMIN != null) ADMIN.close();<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> UTIL.shutdownMiniCluster();<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> @Test<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> public void testObserver() throws IOException {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> int preCount = MyObserver.PRE_COUNT.get();<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> int postCount = MyObserver.POST_COUNT.get();<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> Assert.assertTrue(ADMIN.getClusterMetrics().getMasterCoprocessorNames().stream()<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> .anyMatch(s -> s.equals(MyObserver.class.getSimpleName())));<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> Assert.assertEquals(preCount + 1, MyObserver.PRE_COUNT.get());<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> Assert.assertEquals(postCount + 1, MyObserver.POST_COUNT.get());<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> }<a name="line.189"></a> |
| <span class="sourceLineNo">190</span><a name="line.190"></a> |
| <span class="sourceLineNo">191</span> public static class MyObserver implements MasterCoprocessor, MasterObserver {<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> private static final AtomicInteger PRE_COUNT = new AtomicInteger(0);<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> private static final AtomicInteger POST_COUNT = new AtomicInteger(0);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> @Override public Optional<MasterObserver> getMasterObserver() {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> return Optional.of(this);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> @Override public void preGetClusterMetrics(ObserverContext<MasterCoprocessorEnvironment> ctx)<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> throws IOException {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> PRE_COUNT.incrementAndGet();<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span><a name="line.203"></a> |
| <span class="sourceLineNo">204</span> @Override public void postGetClusterMetrics(ObserverContext<MasterCoprocessorEnvironment> ctx,<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> ClusterMetrics status) throws IOException {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> POST_COUNT.incrementAndGet();<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span>}<a name="line.209"></a> |
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