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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/10/05 14:52:31 UTC
[04/21] hbase-site git commit: Published site at
e42741e0858a59961ae0900b5ef073e16ef6126c.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7ea632ae/testdevapidocs/src-html/org/apache/hadoop/hbase/rsgroup/TestRSGroupsBase.CPMasterObserver.html
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diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/rsgroup/TestRSGroupsBase.CPMasterObserver.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/rsgroup/TestRSGroupsBase.CPMasterObserver.html
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
+<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
+<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
+<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
+<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
+<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
+<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
+<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
+<span class="sourceLineNo">009</span> *<a name="line.9"></a>
+<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
+<span class="sourceLineNo">011</span> *<a name="line.11"></a>
+<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
+<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
+<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
+<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
+<span class="sourceLineNo">017</span> */<a name="line.17"></a>
+<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.rsgroup;<a name="line.18"></a>
+<span class="sourceLineNo">019</span><a name="line.19"></a>
+<span class="sourceLineNo">020</span>import static org.junit.Assert.assertTrue;<a name="line.20"></a>
+<span class="sourceLineNo">021</span><a name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.util.EnumSet;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.HashSet;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.LinkedList;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.Map;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.Optional;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.Random;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.Set;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.TreeMap;<a name="line.31"></a>
+<span class="sourceLineNo">032</span><a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.ClusterMetrics;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.ClusterMetrics.Option;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.HBaseCluster;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.HConstants;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.MiniHBaseCluster;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.NamespaceDescriptor;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.RegionMetrics;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.ServerMetrics;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.ServerName;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.TableName;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.Waiter;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.coprocessor.MasterCoprocessor;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.coprocessor.MasterObserver;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.master.HMaster;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.master.MasterCoprocessorHost;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.master.ServerManager;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.master.snapshot.SnapshotManager;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.net.Address;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.58"></a>
+<span class="sourceLineNo">059</span><a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.junit.Rule;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.junit.rules.TestName;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.slf4j.Logger;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.slf4j.LoggerFactory;<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hbase.thirdparty.com.google.common.collect.Maps;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.66"></a>
+<span class="sourceLineNo">067</span><a name="line.67"></a>
+<span class="sourceLineNo">068</span>public abstract class TestRSGroupsBase {<a name="line.68"></a>
+<span class="sourceLineNo">069</span> protected static final Logger LOG = LoggerFactory.getLogger(TestRSGroupsBase.class);<a name="line.69"></a>
+<span class="sourceLineNo">070</span><a name="line.70"></a>
+<span class="sourceLineNo">071</span> //shared<a name="line.71"></a>
+<span class="sourceLineNo">072</span> protected final static String groupPrefix = "Group";<a name="line.72"></a>
+<span class="sourceLineNo">073</span> protected final static String tablePrefix = "Group";<a name="line.73"></a>
+<span class="sourceLineNo">074</span> protected final static Random rand = new Random();<a name="line.74"></a>
+<span class="sourceLineNo">075</span><a name="line.75"></a>
+<span class="sourceLineNo">076</span> //shared, cluster type specific<a name="line.76"></a>
+<span class="sourceLineNo">077</span> protected static HBaseTestingUtility TEST_UTIL;<a name="line.77"></a>
+<span class="sourceLineNo">078</span> protected static Admin admin;<a name="line.78"></a>
+<span class="sourceLineNo">079</span> protected static HBaseCluster cluster;<a name="line.79"></a>
+<span class="sourceLineNo">080</span> protected static RSGroupAdmin rsGroupAdmin;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> protected static HMaster master;<a name="line.81"></a>
+<span class="sourceLineNo">082</span> protected static boolean INIT = false;<a name="line.82"></a>
+<span class="sourceLineNo">083</span> protected static RSGroupAdminEndpoint rsGroupAdminEndpoint;<a name="line.83"></a>
+<span class="sourceLineNo">084</span> protected static CPMasterObserver observer;<a name="line.84"></a>
+<span class="sourceLineNo">085</span><a name="line.85"></a>
+<span class="sourceLineNo">086</span> public final static long WAIT_TIMEOUT = 60000*5;<a name="line.86"></a>
+<span class="sourceLineNo">087</span> public final static int NUM_SLAVES_BASE = 4; //number of slaves for the smallest cluster<a name="line.87"></a>
+<span class="sourceLineNo">088</span> public static int NUM_DEAD_SERVERS = 0;<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span> // Per test variables<a name="line.90"></a>
+<span class="sourceLineNo">091</span> @Rule<a name="line.91"></a>
+<span class="sourceLineNo">092</span> public TestName name = new TestName();<a name="line.92"></a>
+<span class="sourceLineNo">093</span> protected TableName tableName;<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span> public static void setUpTestBeforeClass() throws Exception {<a name="line.95"></a>
+<span class="sourceLineNo">096</span> TEST_UTIL = new HBaseTestingUtility();<a name="line.96"></a>
+<span class="sourceLineNo">097</span> TEST_UTIL.getConfiguration().setFloat(<a name="line.97"></a>
+<span class="sourceLineNo">098</span> "hbase.master.balancer.stochastic.tableSkewCost", 6000);<a name="line.98"></a>
+<span class="sourceLineNo">099</span> TEST_UTIL.getConfiguration().set(<a name="line.99"></a>
+<span class="sourceLineNo">100</span> HConstants.HBASE_MASTER_LOADBALANCER_CLASS,<a name="line.100"></a>
+<span class="sourceLineNo">101</span> RSGroupBasedLoadBalancer.class.getName());<a name="line.101"></a>
+<span class="sourceLineNo">102</span> TEST_UTIL.getConfiguration().set(CoprocessorHost.MASTER_COPROCESSOR_CONF_KEY,<a name="line.102"></a>
+<span class="sourceLineNo">103</span> RSGroupAdminEndpoint.class.getName() + "," + CPMasterObserver.class.getName());<a name="line.103"></a>
+<span class="sourceLineNo">104</span> TEST_UTIL.startMiniCluster(NUM_SLAVES_BASE - 1);<a name="line.104"></a>
+<span class="sourceLineNo">105</span> TEST_UTIL.getConfiguration().setInt(<a name="line.105"></a>
+<span class="sourceLineNo">106</span> ServerManager.WAIT_ON_REGIONSERVERS_MINTOSTART,<a name="line.106"></a>
+<span class="sourceLineNo">107</span> NUM_SLAVES_BASE - 1);<a name="line.107"></a>
+<span class="sourceLineNo">108</span> TEST_UTIL.getConfiguration().setBoolean(SnapshotManager.HBASE_SNAPSHOT_ENABLED, true);<a name="line.108"></a>
+<span class="sourceLineNo">109</span> initialize();<a name="line.109"></a>
+<span class="sourceLineNo">110</span> }<a name="line.110"></a>
+<span class="sourceLineNo">111</span><a name="line.111"></a>
+<span class="sourceLineNo">112</span> protected static void initialize() throws Exception {<a name="line.112"></a>
+<span class="sourceLineNo">113</span> admin = TEST_UTIL.getAdmin();<a name="line.113"></a>
+<span class="sourceLineNo">114</span> cluster = TEST_UTIL.getHBaseCluster();<a name="line.114"></a>
+<span class="sourceLineNo">115</span> master = ((MiniHBaseCluster)cluster).getMaster();<a name="line.115"></a>
+<span class="sourceLineNo">116</span><a name="line.116"></a>
+<span class="sourceLineNo">117</span> //wait for balancer to come online<a name="line.117"></a>
+<span class="sourceLineNo">118</span> TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {<a name="line.118"></a>
+<span class="sourceLineNo">119</span> @Override<a name="line.119"></a>
+<span class="sourceLineNo">120</span> public boolean evaluate() throws Exception {<a name="line.120"></a>
+<span class="sourceLineNo">121</span> return master.isInitialized() &&<a name="line.121"></a>
+<span class="sourceLineNo">122</span> ((RSGroupBasedLoadBalancer) master.getLoadBalancer()).isOnline();<a name="line.122"></a>
+<span class="sourceLineNo">123</span> }<a name="line.123"></a>
+<span class="sourceLineNo">124</span> });<a name="line.124"></a>
+<span class="sourceLineNo">125</span> admin.setBalancerRunning(false,true);<a name="line.125"></a>
+<span class="sourceLineNo">126</span> rsGroupAdmin = new VerifyingRSGroupAdminClient(<a name="line.126"></a>
+<span class="sourceLineNo">127</span> new RSGroupAdminClient(TEST_UTIL.getConnection()), TEST_UTIL.getConfiguration());<a name="line.127"></a>
+<span class="sourceLineNo">128</span> MasterCoprocessorHost host = master.getMasterCoprocessorHost();<a name="line.128"></a>
+<span class="sourceLineNo">129</span> observer = (CPMasterObserver) host.findCoprocessor(CPMasterObserver.class.getName());<a name="line.129"></a>
+<span class="sourceLineNo">130</span> rsGroupAdminEndpoint = (RSGroupAdminEndpoint)<a name="line.130"></a>
+<span class="sourceLineNo">131</span> host.findCoprocessor(RSGroupAdminEndpoint.class.getName());<a name="line.131"></a>
+<span class="sourceLineNo">132</span> }<a name="line.132"></a>
+<span class="sourceLineNo">133</span><a name="line.133"></a>
+<span class="sourceLineNo">134</span> public static void tearDownAfterClass() throws Exception {<a name="line.134"></a>
+<span class="sourceLineNo">135</span> TEST_UTIL.shutdownMiniCluster();<a name="line.135"></a>
+<span class="sourceLineNo">136</span> }<a name="line.136"></a>
+<span class="sourceLineNo">137</span><a name="line.137"></a>
+<span class="sourceLineNo">138</span> public void setUpBeforeMethod() throws Exception {<a name="line.138"></a>
+<span class="sourceLineNo">139</span> LOG.info(name.getMethodName());<a name="line.139"></a>
+<span class="sourceLineNo">140</span> tableName = TableName.valueOf(tablePrefix + "_" + name.getMethodName());<a name="line.140"></a>
+<span class="sourceLineNo">141</span> if (!INIT) {<a name="line.141"></a>
+<span class="sourceLineNo">142</span> INIT = true;<a name="line.142"></a>
+<span class="sourceLineNo">143</span> tearDownAfterMethod();<a name="line.143"></a>
+<span class="sourceLineNo">144</span> }<a name="line.144"></a>
+<span class="sourceLineNo">145</span> observer.resetFlags();<a name="line.145"></a>
+<span class="sourceLineNo">146</span> }<a name="line.146"></a>
+<span class="sourceLineNo">147</span><a name="line.147"></a>
+<span class="sourceLineNo">148</span> public void tearDownAfterMethod() throws Exception {<a name="line.148"></a>
+<span class="sourceLineNo">149</span> deleteTableIfNecessary();<a name="line.149"></a>
+<span class="sourceLineNo">150</span> deleteNamespaceIfNecessary();<a name="line.150"></a>
+<span class="sourceLineNo">151</span> deleteGroups();<a name="line.151"></a>
+<span class="sourceLineNo">152</span><a name="line.152"></a>
+<span class="sourceLineNo">153</span> for(ServerName sn : admin.listDecommissionedRegionServers()){<a name="line.153"></a>
+<span class="sourceLineNo">154</span> admin.recommissionRegionServer(sn, null);<a name="line.154"></a>
+<span class="sourceLineNo">155</span> }<a name="line.155"></a>
+<span class="sourceLineNo">156</span> assertTrue(admin.listDecommissionedRegionServers().isEmpty());<a name="line.156"></a>
+<span class="sourceLineNo">157</span><a name="line.157"></a>
+<span class="sourceLineNo">158</span> int missing = NUM_SLAVES_BASE - getNumServers();<a name="line.158"></a>
+<span class="sourceLineNo">159</span> LOG.info("Restoring servers: "+missing);<a name="line.159"></a>
+<span class="sourceLineNo">160</span> for(int i=0; i<missing; i++) {<a name="line.160"></a>
+<span class="sourceLineNo">161</span> ((MiniHBaseCluster)cluster).startRegionServer();<a name="line.161"></a>
+<span class="sourceLineNo">162</span> }<a name="line.162"></a>
+<span class="sourceLineNo">163</span><a name="line.163"></a>
+<span class="sourceLineNo">164</span> rsGroupAdmin.addRSGroup("master");<a name="line.164"></a>
+<span class="sourceLineNo">165</span> ServerName masterServerName =<a name="line.165"></a>
+<span class="sourceLineNo">166</span> ((MiniHBaseCluster)cluster).getMaster().getServerName();<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span> try {<a name="line.168"></a>
+<span class="sourceLineNo">169</span> rsGroupAdmin.moveServers(Sets.newHashSet(masterServerName.getAddress()), "master");<a name="line.169"></a>
+<span class="sourceLineNo">170</span> } catch (Exception ex) {<a name="line.170"></a>
+<span class="sourceLineNo">171</span> LOG.warn("Got this on setup, FYI", ex);<a name="line.171"></a>
+<span class="sourceLineNo">172</span> }<a name="line.172"></a>
+<span class="sourceLineNo">173</span> assertTrue(observer.preMoveServersCalled);<a name="line.173"></a>
+<span class="sourceLineNo">174</span> TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate<Exception>() {<a name="line.174"></a>
+<span class="sourceLineNo">175</span> @Override<a name="line.175"></a>
+<span class="sourceLineNo">176</span> public boolean evaluate() throws Exception {<a name="line.176"></a>
+<span class="sourceLineNo">177</span> LOG.info("Waiting for cleanup to finish " + rsGroupAdmin.listRSGroups());<a name="line.177"></a>
+<span class="sourceLineNo">178</span> //Might be greater since moving servers back to default<a name="line.178"></a>
+<span class="sourceLineNo">179</span> //is after starting a server<a name="line.179"></a>
+<span class="sourceLineNo">180</span><a name="line.180"></a>
+<span class="sourceLineNo">181</span> return rsGroupAdmin.getRSGroupInfo(RSGroupInfo.DEFAULT_GROUP).getServers().size()<a name="line.181"></a>
+<span class="sourceLineNo">182</span> == NUM_SLAVES_BASE;<a name="line.182"></a>
+<span class="sourceLineNo">183</span> }<a name="line.183"></a>
+<span class="sourceLineNo">184</span> });<a name="line.184"></a>
+<span class="sourceLineNo">185</span> }<a name="line.185"></a>
+<span class="sourceLineNo">186</span><a name="line.186"></a>
+<span class="sourceLineNo">187</span> public RSGroupInfo addGroup(String groupName, int serverCount)<a name="line.187"></a>
+<span class="sourceLineNo">188</span> throws IOException, InterruptedException {<a name="line.188"></a>
+<span class="sourceLineNo">189</span> RSGroupInfo defaultInfo = rsGroupAdmin.getRSGroupInfo(RSGroupInfo.DEFAULT_GROUP);<a name="line.189"></a>
+<span class="sourceLineNo">190</span> rsGroupAdmin.addRSGroup(groupName);<a name="line.190"></a>
+<span class="sourceLineNo">191</span> Set<Address> set = new HashSet<>();<a name="line.191"></a>
+<span class="sourceLineNo">192</span> for(Address server: defaultInfo.getServers()) {<a name="line.192"></a>
+<span class="sourceLineNo">193</span> if(set.size() == serverCount) {<a name="line.193"></a>
+<span class="sourceLineNo">194</span> break;<a name="line.194"></a>
+<span class="sourceLineNo">195</span> }<a name="line.195"></a>
+<span class="sourceLineNo">196</span> set.add(server);<a name="line.196"></a>
+<span class="sourceLineNo">197</span> }<a name="line.197"></a>
+<span class="sourceLineNo">198</span> rsGroupAdmin.moveServers(set, groupName);<a name="line.198"></a>
+<span class="sourceLineNo">199</span> RSGroupInfo result = rsGroupAdmin.getRSGroupInfo(groupName);<a name="line.199"></a>
+<span class="sourceLineNo">200</span> return result;<a name="line.200"></a>
+<span class="sourceLineNo">201</span> }<a name="line.201"></a>
+<span class="sourceLineNo">202</span><a name="line.202"></a>
+<span class="sourceLineNo">203</span> public void removeGroup(String groupName) throws IOException {<a name="line.203"></a>
+<span class="sourceLineNo">204</span> RSGroupInfo groupInfo = rsGroupAdmin.getRSGroupInfo(groupName);<a name="line.204"></a>
+<span class="sourceLineNo">205</span> rsGroupAdmin.moveTables(groupInfo.getTables(), RSGroupInfo.DEFAULT_GROUP);<a name="line.205"></a>
+<span class="sourceLineNo">206</span> rsGroupAdmin.moveServers(groupInfo.getServers(), RSGroupInfo.DEFAULT_GROUP);<a name="line.206"></a>
+<span class="sourceLineNo">207</span> rsGroupAdmin.removeRSGroup(groupName);<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>
+<span class="sourceLineNo">210</span> public void deleteTableIfNecessary() throws IOException {<a name="line.210"></a>
+<span class="sourceLineNo">211</span> for (TableDescriptor desc : TEST_UTIL.getAdmin().listTables(tablePrefix+".*")) {<a name="line.211"></a>
+<span class="sourceLineNo">212</span> TEST_UTIL.deleteTable(desc.getTableName());<a name="line.212"></a>
+<span class="sourceLineNo">213</span> }<a name="line.213"></a>
+<span class="sourceLineNo">214</span> }<a name="line.214"></a>
+<span class="sourceLineNo">215</span><a name="line.215"></a>
+<span class="sourceLineNo">216</span> public void deleteNamespaceIfNecessary() throws IOException {<a name="line.216"></a>
+<span class="sourceLineNo">217</span> for (NamespaceDescriptor desc : TEST_UTIL.getAdmin().listNamespaceDescriptors()) {<a name="line.217"></a>
+<span class="sourceLineNo">218</span> if(desc.getName().startsWith(tablePrefix)) {<a name="line.218"></a>
+<span class="sourceLineNo">219</span> admin.deleteNamespace(desc.getName());<a name="line.219"></a>
+<span class="sourceLineNo">220</span> }<a name="line.220"></a>
+<span class="sourceLineNo">221</span> }<a name="line.221"></a>
+<span class="sourceLineNo">222</span> }<a name="line.222"></a>
+<span class="sourceLineNo">223</span><a name="line.223"></a>
+<span class="sourceLineNo">224</span> public void deleteGroups() throws IOException {<a name="line.224"></a>
+<span class="sourceLineNo">225</span> RSGroupAdmin groupAdmin = new RSGroupAdminClient(TEST_UTIL.getConnection());<a name="line.225"></a>
+<span class="sourceLineNo">226</span> for(RSGroupInfo group: groupAdmin.listRSGroups()) {<a name="line.226"></a>
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+<span class="sourceLineNo">473</span> final Address server) throws IOException {<a name="line.473"></a>
+<span class="sourceLineNo">474</span> preGetRSGroupInfoOfServerCalled = true;<a name="line.474"></a>
+<span class="sourceLineNo">475</span> }<a name="line.475"></a>
+<span class="sourceLineNo">476</span><a name="line.476"></a>
+<span class="sourceLineNo">477</span> @Override<a name="line.477"></a>
+<span class="sourceLineNo">478</span> public void postGetRSGroupInfoOfServer(final ObserverContext<MasterCoprocessorEnvironment> ctx,<a name="line.478"></a>
+<span class="sourceLineNo">479</span> final Address server) throws IOException {<a name="line.479"></a>
+<span class="sourceLineNo">480</span> postGetRSGroupInfoOfServerCalled = true;<a name="line.480"></a>
+<span class="sourceLineNo">481</span> }<a name="line.481"></a>
+<span class="sourceLineNo">482</span> }<a name="line.482"></a>
+<span class="sourceLineNo">483</span><a name="line.483"></a>
+<span class="sourceLineNo">484</span>}<a name="line.484"></a>
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+</pre>
+</div>
+</body>
+</html>