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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.client;<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.List;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.util.concurrent.ExecutionException;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.util.concurrent.Future;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import java.util.concurrent.TimeUnit;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.ServerName;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.TableName;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.master.assignment.AssignmentTestingUtil;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.master.assignment.SplitTableRegionProcedure;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.master.procedure.DeleteTableProcedure;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.master.procedure.DisableTableProcedure;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.40"></a>
<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;<a name="line.41"></a>
<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.testclassification.ClientTests;<a name="line.42"></a>
<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.43"></a>
<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.44"></a>
<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.45"></a>
<span class="sourceLineNo">046</span>import org.junit.After;<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.ClassRule;<a name="line.48"></a>
<span class="sourceLineNo">049</span>import org.junit.Ignore;<a name="line.49"></a>
<span class="sourceLineNo">050</span>import org.junit.Rule;<a name="line.50"></a>
<span class="sourceLineNo">051</span>import org.junit.Test;<a name="line.51"></a>
<span class="sourceLineNo">052</span>import org.junit.experimental.categories.Category;<a name="line.52"></a>
<span class="sourceLineNo">053</span>import org.junit.rules.TestName;<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>@Category({ MediumTests.class, ClientTests.class })<a name="line.55"></a>
<span class="sourceLineNo">056</span>public class TestSplitOrMergeStatus {<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span> @ClassRule<a name="line.58"></a>
<span class="sourceLineNo">059</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.59"></a>
<span class="sourceLineNo">060</span> HBaseClassTestRule.forClass(TestSplitOrMergeStatus.class);<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span> private final static HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();<a name="line.62"></a>
<span class="sourceLineNo">063</span> private static byte[] FAMILY = Bytes.toBytes("testFamily");<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span> @Rule<a name="line.65"></a>
<span class="sourceLineNo">066</span> public TestName name = new TestName();<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span> @Before<a name="line.68"></a>
<span class="sourceLineNo">069</span> public void setUp() throws Exception {<a name="line.69"></a>
<span class="sourceLineNo">070</span> TEST_UTIL.startMiniCluster(2);<a name="line.70"></a>
<span class="sourceLineNo">071</span> }<a name="line.71"></a>
<span class="sourceLineNo">072</span><a name="line.72"></a>
<span class="sourceLineNo">073</span> @After<a name="line.73"></a>
<span class="sourceLineNo">074</span> public void tearDown() throws Exception {<a name="line.74"></a>
<span class="sourceLineNo">075</span> TEST_UTIL.shutdownMiniCluster();<a name="line.75"></a>
<span class="sourceLineNo">076</span> }<a name="line.76"></a>
<span class="sourceLineNo">077</span><a name="line.77"></a>
<span class="sourceLineNo">078</span> @Test<a name="line.78"></a>
<span class="sourceLineNo">079</span> public void testSplitSwitch() throws Exception {<a name="line.79"></a>
<span class="sourceLineNo">080</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.80"></a>
<span class="sourceLineNo">081</span> Table t = TEST_UTIL.createTable(tableName, FAMILY);<a name="line.81"></a>
<span class="sourceLineNo">082</span> TEST_UTIL.loadTable(t, FAMILY, false);<a name="line.82"></a>
<span class="sourceLineNo">083</span><a name="line.83"></a>
<span class="sourceLineNo">084</span> RegionLocator locator = TEST_UTIL.getConnection().getRegionLocator(t.getName());<a name="line.84"></a>
<span class="sourceLineNo">085</span> int originalCount = locator.getAllRegionLocations().size();<a name="line.85"></a>
<span class="sourceLineNo">086</span><a name="line.86"></a>
<span class="sourceLineNo">087</span> Admin admin = TEST_UTIL.getAdmin();<a name="line.87"></a>
<span class="sourceLineNo">088</span> initSwitchStatus(admin);<a name="line.88"></a>
<span class="sourceLineNo">089</span> assertTrue(admin.splitSwitch(false, false));<a name="line.89"></a>
<span class="sourceLineNo">090</span> try {<a name="line.90"></a>
<span class="sourceLineNo">091</span> admin.split(t.getName());<a name="line.91"></a>
<span class="sourceLineNo">092</span> fail("Shouldn't get here");<a name="line.92"></a>
<span class="sourceLineNo">093</span> } catch (DoNotRetryIOException dnioe) {<a name="line.93"></a>
<span class="sourceLineNo">094</span> // Expected<a name="line.94"></a>
<span class="sourceLineNo">095</span> }<a name="line.95"></a>
<span class="sourceLineNo">096</span> int count = admin.getRegions(tableName).size();<a name="line.96"></a>
<span class="sourceLineNo">097</span> assertTrue(originalCount == count);<a name="line.97"></a>
<span class="sourceLineNo">098</span> assertFalse(admin.splitSwitch(true, false));<a name="line.98"></a>
<span class="sourceLineNo">099</span> admin.split(t.getName());<a name="line.99"></a>
<span class="sourceLineNo">100</span> while ((count = admin.getRegions(tableName).size()) == originalCount) {<a name="line.100"></a>
<span class="sourceLineNo">101</span> Threads.sleep(1);<a name="line.101"></a>
<span class="sourceLineNo">102</span> }<a name="line.102"></a>
<span class="sourceLineNo">103</span> count = admin.getRegions(tableName).size();<a name="line.103"></a>
<span class="sourceLineNo">104</span> assertTrue(originalCount &lt; count);<a name="line.104"></a>
<span class="sourceLineNo">105</span> admin.close();<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> @Ignore<a name="line.108"></a>
<span class="sourceLineNo">109</span> @Test<a name="line.109"></a>
<span class="sourceLineNo">110</span> public void testMergeSwitch() throws Exception {<a name="line.110"></a>
<span class="sourceLineNo">111</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.111"></a>
<span class="sourceLineNo">112</span> Table t = TEST_UTIL.createTable(tableName, FAMILY);<a name="line.112"></a>
<span class="sourceLineNo">113</span> TEST_UTIL.loadTable(t, FAMILY, false);<a name="line.113"></a>
<span class="sourceLineNo">114</span><a name="line.114"></a>
<span class="sourceLineNo">115</span> Admin admin = TEST_UTIL.getAdmin();<a name="line.115"></a>
<span class="sourceLineNo">116</span> int originalCount = admin.getRegions(tableName).size();<a name="line.116"></a>
<span class="sourceLineNo">117</span> initSwitchStatus(admin);<a name="line.117"></a>
<span class="sourceLineNo">118</span> admin.split(t.getName());<a name="line.118"></a>
<span class="sourceLineNo">119</span> int postSplitCount = -1;<a name="line.119"></a>
<span class="sourceLineNo">120</span> while ((postSplitCount = admin.getRegions(tableName).size()) == originalCount) {<a name="line.120"></a>
<span class="sourceLineNo">121</span> Threads.sleep(1);<a name="line.121"></a>
<span class="sourceLineNo">122</span> }<a name="line.122"></a>
<span class="sourceLineNo">123</span> assertTrue("originalCount=" + originalCount + ", newCount=" + postSplitCount,<a name="line.123"></a>
<span class="sourceLineNo">124</span> originalCount != postSplitCount);<a name="line.124"></a>
<span class="sourceLineNo">125</span><a name="line.125"></a>
<span class="sourceLineNo">126</span> // Merge switch is off so merge should NOT succeed.<a name="line.126"></a>
<span class="sourceLineNo">127</span> boolean result = admin.mergeSwitch(false, false);<a name="line.127"></a>
<span class="sourceLineNo">128</span> assertTrue(result);<a name="line.128"></a>
<span class="sourceLineNo">129</span> List&lt;RegionInfo&gt; regions = admin.getRegions(t.getName());<a name="line.129"></a>
<span class="sourceLineNo">130</span> assertTrue(regions.size() &gt; 1);<a name="line.130"></a>
<span class="sourceLineNo">131</span> Future&lt;?&gt; f = admin.mergeRegionsAsync(regions.get(0).getEncodedNameAsBytes(),<a name="line.131"></a>
<span class="sourceLineNo">132</span> regions.get(1).getEncodedNameAsBytes(), true);<a name="line.132"></a>
<span class="sourceLineNo">133</span> try {<a name="line.133"></a>
<span class="sourceLineNo">134</span> f.get(10, TimeUnit.SECONDS);<a name="line.134"></a>
<span class="sourceLineNo">135</span> fail("Should not get here.");<a name="line.135"></a>
<span class="sourceLineNo">136</span> } catch (ExecutionException ee) {<a name="line.136"></a>
<span class="sourceLineNo">137</span> // Expected.<a name="line.137"></a>
<span class="sourceLineNo">138</span> }<a name="line.138"></a>
<span class="sourceLineNo">139</span> int count = admin.getRegions(tableName).size();<a name="line.139"></a>
<span class="sourceLineNo">140</span> assertTrue("newCount=" + postSplitCount + ", count=" + count, postSplitCount == count);<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span> result = admin.mergeSwitch(true, false);<a name="line.142"></a>
<span class="sourceLineNo">143</span> regions = admin.getRegions(t.getName());<a name="line.143"></a>
<span class="sourceLineNo">144</span> assertFalse(result);<a name="line.144"></a>
<span class="sourceLineNo">145</span> f = admin.mergeRegionsAsync(regions.get(0).getEncodedNameAsBytes(),<a name="line.145"></a>
<span class="sourceLineNo">146</span> regions.get(1).getEncodedNameAsBytes(), true);<a name="line.146"></a>
<span class="sourceLineNo">147</span> f.get(10, TimeUnit.SECONDS);<a name="line.147"></a>
<span class="sourceLineNo">148</span> count = admin.getRegions(tableName).size();<a name="line.148"></a>
<span class="sourceLineNo">149</span> assertTrue((postSplitCount / 2 /* Merge */) == count);<a name="line.149"></a>
<span class="sourceLineNo">150</span> admin.close();<a name="line.150"></a>
<span class="sourceLineNo">151</span> }<a name="line.151"></a>
<span class="sourceLineNo">152</span><a name="line.152"></a>
<span class="sourceLineNo">153</span> @Test<a name="line.153"></a>
<span class="sourceLineNo">154</span> public void testMultiSwitches() throws IOException {<a name="line.154"></a>
<span class="sourceLineNo">155</span> Admin admin = TEST_UTIL.getAdmin();<a name="line.155"></a>
<span class="sourceLineNo">156</span> assertTrue(admin.splitSwitch(false, false));<a name="line.156"></a>
<span class="sourceLineNo">157</span> assertTrue(admin.mergeSwitch(false, false));<a name="line.157"></a>
<span class="sourceLineNo">158</span><a name="line.158"></a>
<span class="sourceLineNo">159</span> assertFalse(admin.isSplitEnabled());<a name="line.159"></a>
<span class="sourceLineNo">160</span> assertFalse(admin.isMergeEnabled());<a name="line.160"></a>
<span class="sourceLineNo">161</span> admin.close();<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> @Test<a name="line.164"></a>
<span class="sourceLineNo">165</span> public void testSplitRegionReplicaRitRecovery() throws Exception {<a name="line.165"></a>
<span class="sourceLineNo">166</span> int startRowNum = 11;<a name="line.166"></a>
<span class="sourceLineNo">167</span> int rowCount = 60;<a name="line.167"></a>
<span class="sourceLineNo">168</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.168"></a>
<span class="sourceLineNo">169</span> final ProcedureExecutor&lt;MasterProcedureEnv&gt; procExec = getMasterProcedureExecutor();<a name="line.169"></a>
<span class="sourceLineNo">170</span> TEST_UTIL.getAdmin().createTable(TableDescriptorBuilder.newBuilder(tableName)<a name="line.170"></a>
<span class="sourceLineNo">171</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)).setRegionReplication(2).build());<a name="line.171"></a>
<span class="sourceLineNo">172</span> TEST_UTIL.waitUntilAllRegionsAssigned(tableName);<a name="line.172"></a>
<span class="sourceLineNo">173</span> ServerName serverName =<a name="line.173"></a>
<span class="sourceLineNo">174</span> RegionReplicaTestHelper.getRSCarryingReplica(TEST_UTIL, tableName, 1).get();<a name="line.174"></a>
<span class="sourceLineNo">175</span> List&lt;RegionInfo&gt; regions = TEST_UTIL.getAdmin().getRegions(tableName);<a name="line.175"></a>
<span class="sourceLineNo">176</span> insertData(tableName, startRowNum, rowCount);<a name="line.176"></a>
<span class="sourceLineNo">177</span> int splitRowNum = startRowNum + rowCount / 2;<a name="line.177"></a>
<span class="sourceLineNo">178</span> byte[] splitKey = Bytes.toBytes("" + splitRowNum);<a name="line.178"></a>
<span class="sourceLineNo">179</span> // Split region of the table<a name="line.179"></a>
<span class="sourceLineNo">180</span> long procId = procExec.submitProcedure(<a name="line.180"></a>
<span class="sourceLineNo">181</span> new SplitTableRegionProcedure(procExec.getEnvironment(), regions.get(0), splitKey));<a name="line.181"></a>
<span class="sourceLineNo">182</span> // Wait the completion<a name="line.182"></a>
<span class="sourceLineNo">183</span> ProcedureTestingUtility.waitProcedure(procExec, procId);<a name="line.183"></a>
<span class="sourceLineNo">184</span> // Disable the table<a name="line.184"></a>
<span class="sourceLineNo">185</span> long procId1 = procExec<a name="line.185"></a>
<span class="sourceLineNo">186</span> .submitProcedure(new DisableTableProcedure(procExec.getEnvironment(), tableName, false));<a name="line.186"></a>
<span class="sourceLineNo">187</span> // Wait the completion<a name="line.187"></a>
<span class="sourceLineNo">188</span> ProcedureTestingUtility.waitProcedure(procExec, procId1);<a name="line.188"></a>
<span class="sourceLineNo">189</span> // Delete Table<a name="line.189"></a>
<span class="sourceLineNo">190</span> long procId2 =<a name="line.190"></a>
<span class="sourceLineNo">191</span> procExec.submitProcedure(new DeleteTableProcedure(procExec.getEnvironment(), tableName));<a name="line.191"></a>
<span class="sourceLineNo">192</span> // Wait the completion<a name="line.192"></a>
<span class="sourceLineNo">193</span> ProcedureTestingUtility.waitProcedure(procExec, procId2);<a name="line.193"></a>
<span class="sourceLineNo">194</span> AssignmentTestingUtil.killRs(TEST_UTIL, serverName);<a name="line.194"></a>
<span class="sourceLineNo">195</span> Threads.sleepWithoutInterrupt(5000);<a name="line.195"></a>
<span class="sourceLineNo">196</span> boolean hasRegionsInTransition = TEST_UTIL.getMiniHBaseCluster().getMaster()<a name="line.196"></a>
<span class="sourceLineNo">197</span> .getAssignmentManager().getRegionStates().hasRegionsInTransition();<a name="line.197"></a>
<span class="sourceLineNo">198</span> assertEquals(false, hasRegionsInTransition);<a name="line.198"></a>
<span class="sourceLineNo">199</span> }<a name="line.199"></a>
<span class="sourceLineNo">200</span><a name="line.200"></a>
<span class="sourceLineNo">201</span> private ProcedureExecutor&lt;MasterProcedureEnv&gt; getMasterProcedureExecutor() {<a name="line.201"></a>
<span class="sourceLineNo">202</span> return TEST_UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor();<a name="line.202"></a>
<span class="sourceLineNo">203</span> }<a name="line.203"></a>
<span class="sourceLineNo">204</span><a name="line.204"></a>
<span class="sourceLineNo">205</span> private void insertData(final TableName tableName, int startRow, int rowCount)<a name="line.205"></a>
<span class="sourceLineNo">206</span> throws IOException {<a name="line.206"></a>
<span class="sourceLineNo">207</span> Table t = TEST_UTIL.getConnection().getTable(tableName);<a name="line.207"></a>
<span class="sourceLineNo">208</span> Put p;<a name="line.208"></a>
<span class="sourceLineNo">209</span> for (int i = 0; i &lt; rowCount; i++) {<a name="line.209"></a>
<span class="sourceLineNo">210</span> p = new Put(Bytes.toBytes("" + (startRow + i)));<a name="line.210"></a>
<span class="sourceLineNo">211</span> p.addColumn(FAMILY, Bytes.toBytes("q1"), Bytes.toBytes(i));<a name="line.211"></a>
<span class="sourceLineNo">212</span> t.put(p);<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 initSwitchStatus(Admin admin) throws IOException {<a name="line.216"></a>
<span class="sourceLineNo">217</span> if (!admin.isSplitEnabled()) {<a name="line.217"></a>
<span class="sourceLineNo">218</span> admin.splitSwitch(true, false);<a name="line.218"></a>
<span class="sourceLineNo">219</span> }<a name="line.219"></a>
<span class="sourceLineNo">220</span> if (!admin.isMergeEnabled()) {<a name="line.220"></a>
<span class="sourceLineNo">221</span> admin.mergeSwitch(true, false);<a name="line.221"></a>
<span class="sourceLineNo">222</span> }<a name="line.222"></a>
<span class="sourceLineNo">223</span> assertTrue(admin.isSplitEnabled());<a name="line.223"></a>
<span class="sourceLineNo">224</span> assertTrue(admin.isMergeEnabled());<a name="line.224"></a>
<span class="sourceLineNo">225</span> }<a name="line.225"></a>
<span class="sourceLineNo">226</span>}<a name="line.226"></a>
</pre>
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