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From git-site-r...@apache.org
Subject [05/21] hbase-site git commit: Published site at e42741e0858a59961ae0900b5ef073e16ef6126c.
Date Fri, 05 Oct 2018 14:52:32 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7ea632ae/testdevapidocs/src-html/org/apache/hadoop/hbase/rsgroup/TestRSGroupsAdmin2.html
----------------------------------------------------------------------
diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/rsgroup/TestRSGroupsAdmin2.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/rsgroup/TestRSGroupsAdmin2.html
new file mode 100644
index 0000000..508cad4
--- /dev/null
+++ b/testdevapidocs/src-html/org/apache/hadoop/hbase/rsgroup/TestRSGroupsAdmin2.html
@@ -0,0 +1,559 @@
+<!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.assertEquals;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static org.junit.Assert.assertFalse;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static org.junit.Assert.assertTrue;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import static org.junit.Assert.fail;<a name="line.23"></a>
+<span class="sourceLineNo">024</span><a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.io.IOException;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.ArrayList;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.EnumSet;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.Iterator;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.Set;<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.Option;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.ServerName;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.TableName;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.Waiter;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.ClusterConnection;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.constraint.ConstraintException;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.net.Address;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.42"></a>
+<span class="sourceLineNo">043</span><a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.junit.After;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.junit.AfterClass;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.junit.Assert;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.junit.Before;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.junit.BeforeClass;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.junit.ClassRule;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.junit.Test;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.junit.experimental.categories.Category;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.slf4j.Logger;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.slf4j.LoggerFactory;<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoRequest;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.59"></a>
+<span class="sourceLineNo">060</span><a name="line.60"></a>
+<span class="sourceLineNo">061</span>@Category({MediumTests.class})<a name="line.61"></a>
+<span class="sourceLineNo">062</span>public class TestRSGroupsAdmin2 extends TestRSGroupsBase {<a name="line.62"></a>
+<span class="sourceLineNo">063</span><a name="line.63"></a>
+<span class="sourceLineNo">064</span>  @ClassRule<a name="line.64"></a>
+<span class="sourceLineNo">065</span>  public static final HBaseClassTestRule CLASS_RULE =<a name="line.65"></a>
+<span class="sourceLineNo">066</span>      HBaseClassTestRule.forClass(TestRSGroupsAdmin2.class);<a name="line.66"></a>
+<span class="sourceLineNo">067</span><a name="line.67"></a>
+<span class="sourceLineNo">068</span>  protected static final Logger LOG = LoggerFactory.getLogger(TestRSGroupsAdmin2.class);<a name="line.68"></a>
+<span class="sourceLineNo">069</span><a name="line.69"></a>
+<span class="sourceLineNo">070</span>  @BeforeClass<a name="line.70"></a>
+<span class="sourceLineNo">071</span>  public static void setUp() throws Exception {<a name="line.71"></a>
+<span class="sourceLineNo">072</span>    setUpTestBeforeClass();<a name="line.72"></a>
+<span class="sourceLineNo">073</span>  }<a name="line.73"></a>
+<span class="sourceLineNo">074</span><a name="line.74"></a>
+<span class="sourceLineNo">075</span>  @AfterClass<a name="line.75"></a>
+<span class="sourceLineNo">076</span>  public static void tearDown() throws Exception {<a name="line.76"></a>
+<span class="sourceLineNo">077</span>    tearDownAfterClass();<a name="line.77"></a>
+<span class="sourceLineNo">078</span>  }<a name="line.78"></a>
+<span class="sourceLineNo">079</span><a name="line.79"></a>
+<span class="sourceLineNo">080</span>  @Before<a name="line.80"></a>
+<span class="sourceLineNo">081</span>  public void beforeMethod() throws Exception {<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    setUpBeforeMethod();<a name="line.82"></a>
+<span class="sourceLineNo">083</span>  }<a name="line.83"></a>
+<span class="sourceLineNo">084</span><a name="line.84"></a>
+<span class="sourceLineNo">085</span>  @After<a name="line.85"></a>
+<span class="sourceLineNo">086</span>  public void afterMethod() throws Exception {<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    tearDownAfterMethod();<a name="line.87"></a>
+<span class="sourceLineNo">088</span>  }<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span>  @Test<a name="line.90"></a>
+<span class="sourceLineNo">091</span>  public void testRegionMove() throws Exception {<a name="line.91"></a>
+<span class="sourceLineNo">092</span>    final RSGroupInfo newGroup = addGroup(getGroupName(name.getMethodName()), 1);<a name="line.92"></a>
+<span class="sourceLineNo">093</span>    final byte[] familyNameBytes = Bytes.toBytes("f");<a name="line.93"></a>
+<span class="sourceLineNo">094</span>    // All the regions created below will be assigned to the default group.<a name="line.94"></a>
+<span class="sourceLineNo">095</span>    TEST_UTIL.createMultiRegionTable(tableName, familyNameBytes, 6);<a name="line.95"></a>
+<span class="sourceLineNo">096</span>    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate&lt;Exception&gt;() {<a name="line.96"></a>
+<span class="sourceLineNo">097</span>      @Override<a name="line.97"></a>
+<span class="sourceLineNo">098</span>      public boolean evaluate() throws Exception {<a name="line.98"></a>
+<span class="sourceLineNo">099</span>        List&lt;String&gt; regions = getTableRegionMap().get(tableName);<a name="line.99"></a>
+<span class="sourceLineNo">100</span>        if (regions == null) {<a name="line.100"></a>
+<span class="sourceLineNo">101</span>          return false;<a name="line.101"></a>
+<span class="sourceLineNo">102</span>        }<a name="line.102"></a>
+<span class="sourceLineNo">103</span><a name="line.103"></a>
+<span class="sourceLineNo">104</span>        return getTableRegionMap().get(tableName).size() &gt;= 6;<a name="line.104"></a>
+<span class="sourceLineNo">105</span>      }<a name="line.105"></a>
+<span class="sourceLineNo">106</span>    });<a name="line.106"></a>
+<span class="sourceLineNo">107</span><a name="line.107"></a>
+<span class="sourceLineNo">108</span>    //get target region to move<a name="line.108"></a>
+<span class="sourceLineNo">109</span>    Map&lt;ServerName,List&lt;String&gt;&gt; assignMap =<a name="line.109"></a>
+<span class="sourceLineNo">110</span>        getTableServerRegionMap().get(tableName);<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    String targetRegion = null;<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    for(ServerName server : assignMap.keySet()) {<a name="line.112"></a>
+<span class="sourceLineNo">113</span>      targetRegion = assignMap.get(server).size() &gt; 0 ? assignMap.get(server).get(0) : null;<a name="line.113"></a>
+<span class="sourceLineNo">114</span>      if(targetRegion != null) {<a name="line.114"></a>
+<span class="sourceLineNo">115</span>        break;<a name="line.115"></a>
+<span class="sourceLineNo">116</span>      }<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    }<a name="line.117"></a>
+<span class="sourceLineNo">118</span>    //get server which is not a member of new group<a name="line.118"></a>
+<span class="sourceLineNo">119</span>    ServerName targetServer = null;<a name="line.119"></a>
+<span class="sourceLineNo">120</span>    for (ServerName server : admin.getClusterMetrics(EnumSet.of(Option.LIVE_SERVERS))<a name="line.120"></a>
+<span class="sourceLineNo">121</span>                                  .getLiveServerMetrics().keySet()) {<a name="line.121"></a>
+<span class="sourceLineNo">122</span>      if (!newGroup.containsServer(server.getAddress())) {<a name="line.122"></a>
+<span class="sourceLineNo">123</span>        targetServer = server;<a name="line.123"></a>
+<span class="sourceLineNo">124</span>        break;<a name="line.124"></a>
+<span class="sourceLineNo">125</span>      }<a name="line.125"></a>
+<span class="sourceLineNo">126</span>    }<a name="line.126"></a>
+<span class="sourceLineNo">127</span><a name="line.127"></a>
+<span class="sourceLineNo">128</span>    final AdminProtos.AdminService.BlockingInterface targetRS =<a name="line.128"></a>
+<span class="sourceLineNo">129</span>      ((ClusterConnection) admin.getConnection()).getAdmin(targetServer);<a name="line.129"></a>
+<span class="sourceLineNo">130</span><a name="line.130"></a>
+<span class="sourceLineNo">131</span>    //move target server to group<a name="line.131"></a>
+<span class="sourceLineNo">132</span>    rsGroupAdmin.moveServers(Sets.newHashSet(targetServer.getAddress()),<a name="line.132"></a>
+<span class="sourceLineNo">133</span>        newGroup.getName());<a name="line.133"></a>
+<span class="sourceLineNo">134</span>    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate&lt;Exception&gt;() {<a name="line.134"></a>
+<span class="sourceLineNo">135</span>      @Override<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      public boolean evaluate() throws Exception {<a name="line.136"></a>
+<span class="sourceLineNo">137</span>        return ProtobufUtil.getOnlineRegions(targetRS).size() &lt;= 0;<a name="line.137"></a>
+<span class="sourceLineNo">138</span>      }<a name="line.138"></a>
+<span class="sourceLineNo">139</span>    });<a name="line.139"></a>
+<span class="sourceLineNo">140</span><a name="line.140"></a>
+<span class="sourceLineNo">141</span>    // Lets move this region to the new group.<a name="line.141"></a>
+<span class="sourceLineNo">142</span>    TEST_UTIL.getAdmin().move(Bytes.toBytes(RegionInfo.encodeRegionName(<a name="line.142"></a>
+<span class="sourceLineNo">143</span>            Bytes.toBytes(targetRegion))), Bytes.toBytes(targetServer.getServerName()));<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate&lt;Exception&gt;() {<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      @Override<a name="line.145"></a>
+<span class="sourceLineNo">146</span>      public boolean evaluate() throws Exception {<a name="line.146"></a>
+<span class="sourceLineNo">147</span>        return<a name="line.147"></a>
+<span class="sourceLineNo">148</span>            getTableRegionMap().get(tableName) != null &amp;&amp;<a name="line.148"></a>
+<span class="sourceLineNo">149</span>                getTableRegionMap().get(tableName).size() == 6 &amp;&amp;<a name="line.149"></a>
+<span class="sourceLineNo">150</span>                admin.getClusterMetrics(EnumSet.of(Option.REGIONS_IN_TRANSITION))<a name="line.150"></a>
+<span class="sourceLineNo">151</span>                     .getRegionStatesInTransition().size() &lt; 1;<a name="line.151"></a>
+<span class="sourceLineNo">152</span>      }<a name="line.152"></a>
+<span class="sourceLineNo">153</span>    });<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span>    //verify that targetServer didn't open it<a name="line.155"></a>
+<span class="sourceLineNo">156</span>    for (RegionInfo region: ProtobufUtil.getOnlineRegions(targetRS)) {<a name="line.156"></a>
+<span class="sourceLineNo">157</span>      if (targetRegion.equals(region.getRegionNameAsString())) {<a name="line.157"></a>
+<span class="sourceLineNo">158</span>        fail("Target server opened region");<a name="line.158"></a>
+<span class="sourceLineNo">159</span>      }<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><a name="line.162"></a>
+<span class="sourceLineNo">163</span>  @Test<a name="line.163"></a>
+<span class="sourceLineNo">164</span>  public void testRegionServerMove() throws IOException,<a name="line.164"></a>
+<span class="sourceLineNo">165</span>      InterruptedException {<a name="line.165"></a>
+<span class="sourceLineNo">166</span>    int initNumGroups = rsGroupAdmin.listRSGroups().size();<a name="line.166"></a>
+<span class="sourceLineNo">167</span>    RSGroupInfo appInfo = addGroup(getGroupName(name.getMethodName()), 1);<a name="line.167"></a>
+<span class="sourceLineNo">168</span>    RSGroupInfo adminInfo = addGroup(getGroupName(name.getMethodName()), 1);<a name="line.168"></a>
+<span class="sourceLineNo">169</span>    RSGroupInfo dInfo = rsGroupAdmin.getRSGroupInfo(RSGroupInfo.DEFAULT_GROUP);<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    Assert.assertEquals(initNumGroups + 2, rsGroupAdmin.listRSGroups().size());<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    assertEquals(1, adminInfo.getServers().size());<a name="line.171"></a>
+<span class="sourceLineNo">172</span>    assertEquals(1, appInfo.getServers().size());<a name="line.172"></a>
+<span class="sourceLineNo">173</span>    assertEquals(getNumServers() - 2, dInfo.getServers().size());<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    rsGroupAdmin.moveServers(appInfo.getServers(),<a name="line.174"></a>
+<span class="sourceLineNo">175</span>        RSGroupInfo.DEFAULT_GROUP);<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    rsGroupAdmin.removeRSGroup(appInfo.getName());<a name="line.176"></a>
+<span class="sourceLineNo">177</span>    rsGroupAdmin.moveServers(adminInfo.getServers(),<a name="line.177"></a>
+<span class="sourceLineNo">178</span>        RSGroupInfo.DEFAULT_GROUP);<a name="line.178"></a>
+<span class="sourceLineNo">179</span>    rsGroupAdmin.removeRSGroup(adminInfo.getName());<a name="line.179"></a>
+<span class="sourceLineNo">180</span>    Assert.assertEquals(rsGroupAdmin.listRSGroups().size(), initNumGroups);<a name="line.180"></a>
+<span class="sourceLineNo">181</span>  }<a name="line.181"></a>
+<span class="sourceLineNo">182</span><a name="line.182"></a>
+<span class="sourceLineNo">183</span>  @Test<a name="line.183"></a>
+<span class="sourceLineNo">184</span>  public void testMoveServers() throws Exception {<a name="line.184"></a>
+<span class="sourceLineNo">185</span>    //create groups and assign servers<a name="line.185"></a>
+<span class="sourceLineNo">186</span>    addGroup("bar", 3);<a name="line.186"></a>
+<span class="sourceLineNo">187</span>    rsGroupAdmin.addRSGroup("foo");<a name="line.187"></a>
+<span class="sourceLineNo">188</span><a name="line.188"></a>
+<span class="sourceLineNo">189</span>    RSGroupInfo barGroup = rsGroupAdmin.getRSGroupInfo("bar");<a name="line.189"></a>
+<span class="sourceLineNo">190</span>    RSGroupInfo fooGroup = rsGroupAdmin.getRSGroupInfo("foo");<a name="line.190"></a>
+<span class="sourceLineNo">191</span>    assertEquals(3, barGroup.getServers().size());<a name="line.191"></a>
+<span class="sourceLineNo">192</span>    assertEquals(0, fooGroup.getServers().size());<a name="line.192"></a>
+<span class="sourceLineNo">193</span><a name="line.193"></a>
+<span class="sourceLineNo">194</span>    //test fail bogus server move<a name="line.194"></a>
+<span class="sourceLineNo">195</span>    try {<a name="line.195"></a>
+<span class="sourceLineNo">196</span>      rsGroupAdmin.moveServers(Sets.newHashSet(Address.fromString("foo:9999")),"foo");<a name="line.196"></a>
+<span class="sourceLineNo">197</span>      fail("Bogus servers shouldn't have been successfully moved.");<a name="line.197"></a>
+<span class="sourceLineNo">198</span>    } catch(IOException ex) {<a name="line.198"></a>
+<span class="sourceLineNo">199</span>      String exp = "Source RSGroup for server foo:9999 does not exist.";<a name="line.199"></a>
+<span class="sourceLineNo">200</span>      String msg = "Expected '"+exp+"' in exception message: ";<a name="line.200"></a>
+<span class="sourceLineNo">201</span>      assertTrue(msg+" "+ex.getMessage(), ex.getMessage().contains(exp));<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>    //test success case<a name="line.204"></a>
+<span class="sourceLineNo">205</span>    LOG.info("moving servers "+barGroup.getServers()+" to group foo");<a name="line.205"></a>
+<span class="sourceLineNo">206</span>    rsGroupAdmin.moveServers(barGroup.getServers(), fooGroup.getName());<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span>    barGroup = rsGroupAdmin.getRSGroupInfo("bar");<a name="line.208"></a>
+<span class="sourceLineNo">209</span>    fooGroup = rsGroupAdmin.getRSGroupInfo("foo");<a name="line.209"></a>
+<span class="sourceLineNo">210</span>    assertEquals(0,barGroup.getServers().size());<a name="line.210"></a>
+<span class="sourceLineNo">211</span>    assertEquals(3,fooGroup.getServers().size());<a name="line.211"></a>
+<span class="sourceLineNo">212</span><a name="line.212"></a>
+<span class="sourceLineNo">213</span>    LOG.info("moving servers "+fooGroup.getServers()+" to group default");<a name="line.213"></a>
+<span class="sourceLineNo">214</span>    rsGroupAdmin.moveServers(fooGroup.getServers(), RSGroupInfo.DEFAULT_GROUP);<a name="line.214"></a>
+<span class="sourceLineNo">215</span><a name="line.215"></a>
+<span class="sourceLineNo">216</span>    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate&lt;Exception&gt;() {<a name="line.216"></a>
+<span class="sourceLineNo">217</span>      @Override<a name="line.217"></a>
+<span class="sourceLineNo">218</span>      public boolean evaluate() throws Exception {<a name="line.218"></a>
+<span class="sourceLineNo">219</span>        return getNumServers() ==<a name="line.219"></a>
+<span class="sourceLineNo">220</span>        rsGroupAdmin.getRSGroupInfo(RSGroupInfo.DEFAULT_GROUP).getServers().size();<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>    fooGroup = rsGroupAdmin.getRSGroupInfo("foo");<a name="line.224"></a>
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+<span class="sourceLineNo">445</span>    RSGroupInfo fooGroup = rsGroupAdmin.getRSGroupInfo("foo");<a name="line.445"></a>
+<span class="sourceLineNo">446</span>    assertEquals(0, fooGroup.getServers().size());<a name="line.446"></a>
+<span class="sourceLineNo">447</span>    RSGroupInfo defaultGroup = rsGroupAdmin.getRSGroupInfo(RSGroupInfo.DEFAULT_GROUP);<a name="line.447"></a>
+<span class="sourceLineNo">448</span><a name="line.448"></a>
+<span class="sourceLineNo">449</span>    //test remove all servers from default<a name="line.449"></a>
+<span class="sourceLineNo">450</span>    try {<a name="line.450"></a>
+<span class="sourceLineNo">451</span>      rsGroupAdmin.moveServers(defaultGroup.getServers(), fooGroup.getName());<a name="line.451"></a>
+<span class="sourceLineNo">452</span>      fail(RSGroupAdminServer.KEEP_ONE_SERVER_IN_DEFAULT_ERROR_MESSAGE);<a name="line.452"></a>
+<span class="sourceLineNo">453</span>    } catch (ConstraintException ex) {<a name="line.453"></a>
+<span class="sourceLineNo">454</span>      assertTrue(ex.getMessage().contains(RSGroupAdminServer<a name="line.454"></a>
+<span class="sourceLineNo">455</span>              .KEEP_ONE_SERVER_IN_DEFAULT_ERROR_MESSAGE));<a name="line.455"></a>
+<span class="sourceLineNo">456</span>    }<a name="line.456"></a>
+<span class="sourceLineNo">457</span><a name="line.457"></a>
+<span class="sourceLineNo">458</span>    //test success case, remove one server from default ,keep at least one server<a name="line.458"></a>
+<span class="sourceLineNo">459</span>    if (defaultGroup.getServers().size() &gt; 1) {<a name="line.459"></a>
+<span class="sourceLineNo">460</span>      Address serverInDefaultGroup = defaultGroup.getServers().iterator().next();<a name="line.460"></a>
+<span class="sourceLineNo">461</span>      LOG.info("moving server " + serverInDefaultGroup + " from group default to group " +<a name="line.461"></a>
+<span class="sourceLineNo">462</span>              fooGroup.getName());<a name="line.462"></a>
+<span class="sourceLineNo">463</span>      rsGroupAdmin.moveServers(Sets.newHashSet(serverInDefaultGroup), fooGroup.getName());<a name="line.463"></a>
+<span class="sourceLineNo">464</span>    }<a name="line.464"></a>
+<span class="sourceLineNo">465</span><a name="line.465"></a>
+<span class="sourceLineNo">466</span>    fooGroup = rsGroupAdmin.getRSGroupInfo("foo");<a name="line.466"></a>
+<span class="sourceLineNo">467</span>    LOG.info("moving servers " + fooGroup.getServers() + " to group default");<a name="line.467"></a>
+<span class="sourceLineNo">468</span>    rsGroupAdmin.moveServers(fooGroup.getServers(), RSGroupInfo.DEFAULT_GROUP);<a name="line.468"></a>
+<span class="sourceLineNo">469</span><a name="line.469"></a>
+<span class="sourceLineNo">470</span>    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate&lt;Exception&gt;() {<a name="line.470"></a>
+<span class="sourceLineNo">471</span>      @Override<a name="line.471"></a>
+<span class="sourceLineNo">472</span>      public boolean evaluate() throws Exception {<a name="line.472"></a>
+<span class="sourceLineNo">473</span>        return getNumServers() ==<a name="line.473"></a>
+<span class="sourceLineNo">474</span>                rsGroupAdmin.getRSGroupInfo(RSGroupInfo.DEFAULT_GROUP).getServers().size();<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><a name="line.477"></a>
+<span class="sourceLineNo">478</span>    fooGroup = rsGroupAdmin.getRSGroupInfo("foo");<a name="line.478"></a>
+<span class="sourceLineNo">479</span>    assertEquals(0, fooGroup.getServers().size());<a name="line.479"></a>
+<span class="sourceLineNo">480</span><a name="line.480"></a>
+<span class="sourceLineNo">481</span>    //test group removal<a name="line.481"></a>
+<span class="sourceLineNo">482</span>    LOG.info("Remove group " + fooGroup.getName());<a name="line.482"></a>
+<span class="sourceLineNo">483</span>    rsGroupAdmin.removeRSGroup(fooGroup.getName());<a name="line.483"></a>
+<span class="sourceLineNo">484</span>    Assert.assertEquals(null, rsGroupAdmin.getRSGroupInfo(fooGroup.getName()));<a name="line.484"></a>
+<span class="sourceLineNo">485</span>  }<a name="line.485"></a>
+<span class="sourceLineNo">486</span><a name="line.486"></a>
+<span class="sourceLineNo">487</span>}<a name="line.487"></a>
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+</pre>
+</div>
+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7ea632ae/testdevapidocs/src-html/org/apache/hadoop/hbase/rsgroup/TestRSGroupsBalance.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.assertEquals;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static org.junit.Assert.assertFalse;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static org.junit.Assert.assertTrue;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.Map;<a name="line.25"></a>
+<span class="sourceLineNo">026</span><a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HColumnDescriptor;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.NamespaceDescriptor;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.ServerName;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.TableName;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.Waiter;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.Waiter.Predicate;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.36"></a>
+<span class="sourceLineNo">037</span><a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.junit.After;<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.Before;<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>import org.slf4j.Logger;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.slf4j.LoggerFactory;<a name="line.46"></a>
+<span class="sourceLineNo">047</span><a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.49"></a>
+<span class="sourceLineNo">050</span><a name="line.50"></a>
+<span class="sourceLineNo">051</span>@Category({MediumTests.class})<a name="line.51"></a>
+<span class="sourceLineNo">052</span>public class TestRSGroupsBalance extends TestRSGroupsBase {<a name="line.52"></a>
+<span class="sourceLineNo">053</span><a name="line.53"></a>
+<span class="sourceLineNo">054</span>  @ClassRule<a name="line.54"></a>
+<span class="sourceLineNo">055</span>  public static final HBaseClassTestRule CLASS_RULE =<a name="line.55"></a>
+<span class="sourceLineNo">056</span>      HBaseClassTestRule.forClass(TestRSGroupsBalance.class);<a name="line.56"></a>
+<span class="sourceLineNo">057</span><a name="line.57"></a>
+<span class="sourceLineNo">058</span>  protected static final Logger LOG = LoggerFactory.getLogger(TestRSGroupsBalance.class);<a name="line.58"></a>
+<span class="sourceLineNo">059</span><a name="line.59"></a>
+<span class="sourceLineNo">060</span>  @BeforeClass<a name="line.60"></a>
+<span class="sourceLineNo">061</span>  public static void setUp() throws Exception {<a name="line.61"></a>
+<span class="sourceLineNo">062</span>    setUpTestBeforeClass();<a name="line.62"></a>
+<span class="sourceLineNo">063</span>  }<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span>  @AfterClass<a name="line.65"></a>
+<span class="sourceLineNo">066</span>  public static void tearDown() throws Exception {<a name="line.66"></a>
+<span class="sourceLineNo">067</span>    tearDownAfterClass();<a name="line.67"></a>
+<span class="sourceLineNo">068</span>  }<a name="line.68"></a>
+<span class="sourceLineNo">069</span><a name="line.69"></a>
+<span class="sourceLineNo">070</span>  @Before<a name="line.70"></a>
+<span class="sourceLineNo">071</span>  public void beforeMethod() throws Exception {<a name="line.71"></a>
+<span class="sourceLineNo">072</span>    setUpBeforeMethod();<a name="line.72"></a>
+<span class="sourceLineNo">073</span>  }<a name="line.73"></a>
+<span class="sourceLineNo">074</span><a name="line.74"></a>
+<span class="sourceLineNo">075</span>  @After<a name="line.75"></a>
+<span class="sourceLineNo">076</span>  public void afterMethod() throws Exception {<a name="line.76"></a>
+<span class="sourceLineNo">077</span>    tearDownAfterMethod();<a name="line.77"></a>
+<span class="sourceLineNo">078</span>  }<a name="line.78"></a>
+<span class="sourceLineNo">079</span><a name="line.79"></a>
+<span class="sourceLineNo">080</span>  @Test<a name="line.80"></a>
+<span class="sourceLineNo">081</span>  public void testGroupBalance() throws Exception {<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    LOG.info(name.getMethodName());<a name="line.82"></a>
+<span class="sourceLineNo">083</span>    String newGroupName = getGroupName(name.getMethodName());<a name="line.83"></a>
+<span class="sourceLineNo">084</span>    final RSGroupInfo newGroup = addGroup(newGroupName, 3);<a name="line.84"></a>
+<span class="sourceLineNo">085</span><a name="line.85"></a>
+<span class="sourceLineNo">086</span>    final TableName tableName = TableName.valueOf(tablePrefix+"_ns", name.getMethodName());<a name="line.86"></a>
+<span class="sourceLineNo">087</span>    admin.createNamespace(<a name="line.87"></a>
+<span class="sourceLineNo">088</span>        NamespaceDescriptor.create(tableName.getNamespaceAsString())<a name="line.88"></a>
+<span class="sourceLineNo">089</span>            .addConfiguration(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP, newGroupName).build());<a name="line.89"></a>
+<span class="sourceLineNo">090</span>    final byte[] familyNameBytes = Bytes.toBytes("f");<a name="line.90"></a>
+<span class="sourceLineNo">091</span>    final HTableDescriptor desc = new HTableDescriptor(tableName);<a name="line.91"></a>
+<span class="sourceLineNo">092</span>    desc.addFamily(new HColumnDescriptor("f"));<a name="line.92"></a>
+<span class="sourceLineNo">093</span>    byte [] startKey = Bytes.toBytes("aaaaa");<a name="line.93"></a>
+<span class="sourceLineNo">094</span>    byte [] endKey = Bytes.toBytes("zzzzz");<a name="line.94"></a>
+<span class="sourceLineNo">095</span>    admin.createTable(desc, startKey, endKey, 6);<a name="line.95"></a>
+<span class="sourceLineNo">096</span>    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate&lt;Exception&gt;() {<a name="line.96"></a>
+<span class="sourceLineNo">097</span>      @Override<a name="line.97"></a>
+<span class="sourceLineNo">098</span>      public boolean evaluate() throws Exception {<a name="line.98"></a>
+<span class="sourceLineNo">099</span>        List&lt;String&gt; regions = getTableRegionMap().get(tableName);<a name="line.99"></a>
+<span class="sourceLineNo">100</span>        if (regions == null) {<a name="line.100"></a>
+<span class="sourceLineNo">101</span>          return false;<a name="line.101"></a>
+<span class="sourceLineNo">102</span>        }<a name="line.102"></a>
+<span class="sourceLineNo">103</span>        return regions.size() &gt;= 6;<a name="line.103"></a>
+<span class="sourceLineNo">104</span>      }<a name="line.104"></a>
+<span class="sourceLineNo">105</span>    });<a name="line.105"></a>
+<span class="sourceLineNo">106</span><a name="line.106"></a>
+<span class="sourceLineNo">107</span>    //make assignment uneven, move all regions to one server<a name="line.107"></a>
+<span class="sourceLineNo">108</span>    Map&lt;ServerName,List&lt;String&gt;&gt; assignMap =<a name="line.108"></a>
+<span class="sourceLineNo">109</span>        getTableServerRegionMap().get(tableName);<a name="line.109"></a>
+<span class="sourceLineNo">110</span>    final ServerName first = assignMap.entrySet().iterator().next().getKey();<a name="line.110"></a>
+<span class="sourceLineNo">111</span>    for(RegionInfo region: admin.getTableRegions(tableName)) {<a name="line.111"></a>
+<span class="sourceLineNo">112</span>      if(!assignMap.get(first).contains(region.getRegionNameAsString())) {<a name="line.112"></a>
+<span class="sourceLineNo">113</span>        admin.move(region.getEncodedNameAsBytes(), Bytes.toBytes(first.getServerName()));<a name="line.113"></a>
+<span class="sourceLineNo">114</span>      }<a name="line.114"></a>
+<span class="sourceLineNo">115</span>    }<a name="line.115"></a>
+<span class="sourceLineNo">116</span>    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate&lt;Exception&gt;() {<a name="line.116"></a>
+<span class="sourceLineNo">117</span>      @Override<a name="line.117"></a>
+<span class="sourceLineNo">118</span>      public boolean evaluate() throws Exception {<a name="line.118"></a>
+<span class="sourceLineNo">119</span>        Map&lt;ServerName, List&lt;String&gt;&gt; map = getTableServerRegionMap().get(tableName);<a name="line.119"></a>
+<span class="sourceLineNo">120</span>        if (map == null) {<a name="line.120"></a>
+<span class="sourceLineNo">121</span>          return true;<a name="line.121"></a>
+<span class="sourceLineNo">122</span>        }<a name="line.122"></a>
+<span class="sourceLineNo">123</span>        List&lt;String&gt; regions = map.get(first);<a name="line.123"></a>
+<span class="sourceLineNo">124</span>        if (regions == null) {<a name="line.124"></a>
+<span class="sourceLineNo">125</span>          return true;<a name="line.125"></a>
+<span class="sourceLineNo">126</span>        }<a name="line.126"></a>
+<span class="sourceLineNo">127</span>        return regions.size() &gt;= 6;<a name="line.127"></a>
+<span class="sourceLineNo">128</span>      }<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    });<a name="line.129"></a>
+<span class="sourceLineNo">130</span><a name="line.130"></a>
+<span class="sourceLineNo">131</span>    //balance the other group and make sure it doesn't affect the new group<a name="line.131"></a>
+<span class="sourceLineNo">132</span>    admin.setBalancerRunning(true,true);<a name="line.132"></a>
+<span class="sourceLineNo">133</span>    rsGroupAdmin.balanceRSGroup(RSGroupInfo.DEFAULT_GROUP);<a name="line.133"></a>
+<span class="sourceLineNo">134</span>    assertEquals(6, getTableServerRegionMap().get(tableName).get(first).size());<a name="line.134"></a>
+<span class="sourceLineNo">135</span><a name="line.135"></a>
+<span class="sourceLineNo">136</span>    //disable balance, balancer will not be run and return false<a name="line.136"></a>
+<span class="sourceLineNo">137</span>    admin.setBalancerRunning(false,true);<a name="line.137"></a>
+<span class="sourceLineNo">138</span>    assertFalse(rsGroupAdmin.balanceRSGroup(newGroupName));<a name="line.138"></a>
+<span class="sourceLineNo">139</span>    assertEquals(6, getTableServerRegionMap().get(tableName).get(first).size());<a name="line.139"></a>
+<span class="sourceLineNo">140</span><a name="line.140"></a>
+<span class="sourceLineNo">141</span>    //enable balance<a name="line.141"></a>
+<span class="sourceLineNo">142</span>    admin.setBalancerRunning(true,true);<a name="line.142"></a>
+<span class="sourceLineNo">143</span>    rsGroupAdmin.balanceRSGroup(newGroupName);<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    TEST_UTIL.waitFor(WAIT_TIMEOUT, new Waiter.Predicate&lt;Exception&gt;() {<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      @Override<a name="line.145"></a>
+<span class="sourceLineNo">146</span>      public boolean evaluate() throws Exception {<a name="line.146"></a>
+<span class="sourceLineNo">147</span>        for (List&lt;String&gt; regions : getTableServerRegionMap().get(tableName).values()) {<a name="line.147"></a>
+<span class="sourceLineNo">148</span>          if (2 != regions.size()) {<a name="line.148"></a>
+<span class="sourceLineNo">149</span>            return false;<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>        return true;<a name="line.152"></a>
+<span class="sourceLineNo">153</span>      }<a name="line.153"></a>
+<span class="sourceLineNo">154</span>    });<a name="line.154"></a>
+<span class="sourceLineNo">155</span>    admin.setBalancerRunning(false,true);<a name="line.155"></a>
+<span class="sourceLineNo">156</span>  }<a name="line.156"></a>
+<span class="sourceLineNo">157</span><a name="line.157"></a>
+<span class="sourceLineNo">158</span>  @Test<a name="line.158"></a>
+<span class="sourceLineNo">159</span>  public void testMisplacedRegions() throws Exception {<a name="line.159"></a>
+<span class="sourceLineNo">160</span>    final TableName tableName = TableName.valueOf(tablePrefix+"_testMisplacedRegions");<a name="line.160"></a>
+<span class="sourceLineNo">161</span>    LOG.info("testMisplacedRegions");<a name="line.161"></a>
+<span class="sourceLineNo">162</span><a name="line.162"></a>
+<span class="sourceLineNo">163</span>    final RSGroupInfo RSGroupInfo = addGroup("testMisplacedRegions", 1);<a name="line.163"></a>
+<span class="sourceLineNo">164</span><a name="line.164"></a>
+<span class="sourceLineNo">165</span>    TEST_UTIL.createMultiRegionTable(tableName, new byte[]{'f'}, 15);<a name="line.165"></a>
+<span class="sourceLineNo">166</span>    TEST_UTIL.waitUntilAllRegionsAssigned(tableName);<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>    rsGroupAdminEndpoint.getGroupInfoManager()<a name="line.168"></a>
+<span class="sourceLineNo">169</span>        .moveTables(Sets.newHashSet(tableName), RSGroupInfo.getName());<a name="line.169"></a>
+<span class="sourceLineNo">170</span><a name="line.170"></a>
+<span class="sourceLineNo">171</span>    admin.setBalancerRunning(true,true);<a name="line.171"></a>
+<span class="sourceLineNo">172</span>    assertTrue(rsGroupAdmin.balanceRSGroup(RSGroupInfo.getName()));<a name="line.172"></a>
+<span class="sourceLineNo">173</span>    admin.setBalancerRunning(false,true);<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    assertTrue(observer.preBalanceRSGroupCalled);<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    assertTrue(observer.postBalanceRSGroupCalled);<a name="line.175"></a>
+<span class="sourceLineNo">176</span><a name="line.176"></a>
+<span class="sourceLineNo">177</span>    TEST_UTIL.waitFor(60000, new Predicate&lt;Exception&gt;() {<a name="line.177"></a>
+<span class="sourceLineNo">178</span>      @Override<a name="line.178"></a>
+<span class="sourceLineNo">179</span>      public boolean evaluate() throws Exception {<a name="line.179"></a>
+<span class="sourceLineNo">180</span>        ServerName serverName =<a name="line.180"></a>
+<span class="sourceLineNo">181</span>            ServerName.valueOf(RSGroupInfo.getServers().iterator().next().toString(), 1);<a name="line.181"></a>
+<span class="sourceLineNo">182</span>        return admin.getConnection().getAdmin()<a name="line.182"></a>
+<span class="sourceLineNo">183</span>            .getOnlineRegions(serverName).size() == 15;<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><a name="line.187"></a>
+<span class="sourceLineNo">188</span>}<a name="line.188"></a>
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+</pre>
+</div>
+</body>
+</html>


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