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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.master.balancer;<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.assertTrue;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.conf.Configuration;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HConstants;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.MiniHBaseCluster;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.StartMiniClusterOption;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.TableName;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.Table;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.master.HMaster;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.master.LoadBalancer;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.regionserver.HRegion;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.JVMClusterUtil;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.Threads;<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.Before;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.junit.ClassRule;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.junit.Ignore;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.junit.Rule;<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.junit.rules.TestName;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.slf4j.Logger;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.slf4j.LoggerFactory;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span>/**<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * Test options for regions on master; none, system, or any (i.e. master is like any other<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * regionserver). Checks how regions are deployed when each of the options are enabled.<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * It then does kill combinations to make sure the distribution is more than just for startup.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * NOTE: Regions on Master does not work well. See HBASE-19828. Until addressed, disabling this<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * test.<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> */<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>@Ignore<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>@Category({MediumTests.class})<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>public class TestRegionsOnMasterOptions {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> @ClassRule<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> HBaseClassTestRule.forClass(TestRegionsOnMasterOptions.class);<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> private static final Logger LOG = LoggerFactory.getLogger(TestRegionsOnMasterOptions.class);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> @Rule public TestName name = new TestName();<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private Configuration c;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> private String tablesOnMasterOldValue;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> private String systemTablesOnMasterOldValue;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private static final int SLAVES = 3;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private static final int MASTERS = 2;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> // Make the count of REGIONS high enough so I can distingush case where master is only carrying<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> // system regions from the case where it is carrying any region; i.e. 2 system regions vs more<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> // if user + system.<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private static final int REGIONS = 12;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> private static final int SYSTEM_REGIONS = 2; // ns and meta -- no acl unless enabled.<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> @Before<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> public void setup() {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> this.c = TEST_UTIL.getConfiguration();<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> this.tablesOnMasterOldValue = c.get(LoadBalancer.TABLES_ON_MASTER);<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> this.systemTablesOnMasterOldValue = c.get(LoadBalancer.SYSTEM_TABLES_ON_MASTER);<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 tearDown() {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> unset(LoadBalancer.TABLES_ON_MASTER, this.tablesOnMasterOldValue);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> unset(LoadBalancer.SYSTEM_TABLES_ON_MASTER, this.systemTablesOnMasterOldValue);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> }<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> private void unset(final String key, final String value) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> if (value == null) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> c.unset(key);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> } else {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> c.set(key, value);<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> @Test<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> public void testRegionsOnAllServers() throws Exception {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> c.setBoolean(LoadBalancer.TABLES_ON_MASTER, true);<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> c.setBoolean(LoadBalancer.SYSTEM_TABLES_ON_MASTER, false);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> int rsCount = (REGIONS + SYSTEM_REGIONS)/(SLAVES + 1/*Master*/);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> checkBalance(rsCount, rsCount);<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> @Test<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> public void testNoRegionOnMaster() throws Exception {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> c.setBoolean(LoadBalancer.TABLES_ON_MASTER, false);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> c.setBoolean(LoadBalancer.SYSTEM_TABLES_ON_MASTER, false);<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> int rsCount = (REGIONS + SYSTEM_REGIONS)/SLAVES;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> checkBalance(0, rsCount);<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> @Ignore // Fix this. The Master startup doesn't allow Master reporting as a RegionServer, not<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> // until way late after the Master startup finishes. Needs more work.<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> @Test<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> public void testSystemTablesOnMaster() throws Exception {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> c.setBoolean(LoadBalancer.TABLES_ON_MASTER, true);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> c.setBoolean(LoadBalancer.SYSTEM_TABLES_ON_MASTER, true);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> // IS THIS SHORT-CIRCUIT RPC? Yes. Here is how it looks currently if I have an exception<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> // thrown in doBatchMutate inside a Region.<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> //<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // java.lang.Exception<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // at org.apache.hadoop.hbase.regionserver.HRegion.doBatchMutate(HRegion.java:3845)<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> // at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:2972)<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // at org.apache.hadoop.hbase.regionserver.RSRpcServices.mutate(RSRpcServices.java:2751)<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // at org.apache.hadoop.hbase.client.ClientServiceCallable.doMutate(ClientServiceCallable.java:55)<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // at org.apache.hadoop.hbase.client.HTable$3.rpcCall(HTable.java:585)<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> // at org.apache.hadoop.hbase.client.HTable$3.rpcCall(HTable.java:579)<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> // at org.apache.hadoop.hbase.client.RegionServerCallable.call(RegionServerCallable.java:126)<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> // at org.apache.hadoop.hbase.client.RpcRetryingCallerImpl.callWithRetries(RpcRetryingCallerImpl.java:106)<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> // at org.apache.hadoop.hbase.client.HTable.put(HTable.java:589)<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> // at org.apache.hadoop.hbase.master.TableNamespaceManager.insertIntoNSTable(TableNamespaceManager.java:156)<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> // at org.apache.hadoop.hbase.master.procedure.CreateNamespaceProcedure.insertIntoNSTable(CreateNamespaceProcedure.java:222)<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> // at org.apache.hadoop.hbase.master.procedure.CreateNamespaceProcedure.executeFromState(CreateNamespaceProcedure.java:76)<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> // at org.apache.hadoop.hbase.master.procedure.CreateNamespaceProcedure.executeFromState(CreateNamespaceProcedure.java:40)<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> // at org.apache.hadoop.hbase.procedure2.StateMachineProcedure.execute(StateMachineProcedure.java:181)<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> // at org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:847)<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> // at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1440)<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> // at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1209)<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> // at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$800(ProcedureExecutor.java:79)<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // at org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1719)<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> //<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> // If I comment out the ConnectionUtils ConnectionImplementation content, I see this:<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> //<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> // java.lang.Exception<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> // at org.apache.hadoop.hbase.regionserver.HRegion.doBatchMutate(HRegion.java:3845)<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> // at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:2972)<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> // at org.apache.hadoop.hbase.regionserver.RSRpcServices.mutate(RSRpcServices.java:2751)<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> // at org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:41546)<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> // at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:406)<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> // at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:133)<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> // at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:278)<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> // at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:258)<a name="line.155"></a> |
| <span class="sourceLineNo">156</span><a name="line.156"></a> |
| <span class="sourceLineNo">157</span> checkBalance(SYSTEM_REGIONS, REGIONS/SLAVES);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> }<a name="line.158"></a> |
| <span class="sourceLineNo">159</span><a name="line.159"></a> |
| <span class="sourceLineNo">160</span> private void checkBalance(int masterCount, int rsCount) throws Exception {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> StartMiniClusterOption option = StartMiniClusterOption.builder()<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> .numMasters(MASTERS).numRegionServers(SLAVES).numDataNodes(SLAVES).build();<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> MiniHBaseCluster cluster = TEST_UTIL.startMiniCluster(option);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> TableName tn = TableName.valueOf(this.name.getMethodName());<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> try {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> Table t = TEST_UTIL.createMultiRegionTable(tn, HConstants.CATALOG_FAMILY, REGIONS);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> LOG.info("Server: " + cluster.getMaster().getServerManager().getOnlineServersList());<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> List<HRegion> regions = cluster.getMaster().getRegions();<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> int mActualCount = regions.size();<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> if (masterCount == 0 || masterCount == SYSTEM_REGIONS) {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> // 0 means no regions on master.<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> assertEquals(masterCount, mActualCount);<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> } else {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> // This is master as a regionserver scenario.<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> checkCount(masterCount, mActualCount);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> }<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> // Allow that balance is not exact. FYI, getRegionServerThreads does not include master<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> // thread though it is a regionserver so we have to check master and then below the<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> // regionservers.<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> for (JVMClusterUtil.RegionServerThread rst: cluster.getRegionServerThreads()) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> regions = rst.getRegionServer().getRegions();<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> int rsActualCount = regions.size();<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> checkCount(rsActualCount, rsCount);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> HMaster oldMaster = cluster.getMaster();<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> cluster.killMaster(oldMaster.getServerName());<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> oldMaster.join();<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> while (cluster.getMaster() == null ||<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> cluster.getMaster().getServerName().equals(oldMaster.getServerName())) {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> Threads.sleep(10);<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> while (!cluster.getMaster().isInitialized()) {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> Threads.sleep(10);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> while (cluster.getMaster().getAssignmentManager().<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> computeRegionInTransitionStat().getTotalRITs() > 0) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> Threads.sleep(100);<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> LOG.info("Waiting on RIT to go to zero before calling balancer...");<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> LOG.info("Cluster is up; running balancer");<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> cluster.getMaster().balance();<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> regions = cluster.getMaster().getRegions();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> int mNewActualCount = regions.size();<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> if (masterCount == 0 || masterCount == SYSTEM_REGIONS) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> // 0 means no regions on master. After crash, should still be no regions on master.<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> // If masterCount == SYSTEM_REGIONS, means master only carrying system regions and should<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> // still only carry system regions post crash.<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> assertEquals(masterCount, mNewActualCount);<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> } finally {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> LOG.info("Running shutdown of cluster");<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> TEST_UTIL.shutdownMiniCluster();<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> private void checkCount(int actual, int expected) {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> assertTrue("Actual=" + actual + ", expected=" + expected,<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> actual >= (expected - 2) && actual <= (expected + 2)); // Lots of slop +/- 2<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span>}<a name="line.220"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
