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<pre><span class="source-line-no">001</span><span id="line-1">/*</span>
<span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span>
<span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span>
<span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span>
<span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span>
<span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span>
<span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span>
<span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span>
<span class="source-line-no">009</span><span id="line-9"> *</span>
<span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span>
<span class="source-line-no">011</span><span id="line-11"> *</span>
<span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span>
<span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
<span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span>
<span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span>
<span class="source-line-no">017</span><span id="line-17"> */</span>
<span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.client;</span>
<span class="source-line-no">019</span><span id="line-19"></span>
<span class="source-line-no">020</span><span id="line-20">import static org.junit.Assert.assertEquals;</span>
<span class="source-line-no">021</span><span id="line-21">import static org.junit.Assert.assertFalse;</span>
<span class="source-line-no">022</span><span id="line-22">import static org.junit.Assert.assertTrue;</span>
<span class="source-line-no">023</span><span id="line-23">import static org.junit.Assert.fail;</span>
<span class="source-line-no">024</span><span id="line-24"></span>
<span class="source-line-no">025</span><span id="line-25">import java.io.IOException;</span>
<span class="source-line-no">026</span><span id="line-26">import java.util.List;</span>
<span class="source-line-no">027</span><span id="line-27">import java.util.concurrent.ExecutionException;</span>
<span class="source-line-no">028</span><span id="line-28">import java.util.concurrent.Future;</span>
<span class="source-line-no">029</span><span id="line-29">import java.util.concurrent.TimeUnit;</span>
<span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.DoNotRetryIOException;</span>
<span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.HBaseClassTestRule;</span>
<span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.HBaseTestingUtil;</span>
<span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.ServerName;</span>
<span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.TableName;</span>
<span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.master.assignment.AssignmentTestingUtil;</span>
<span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.master.assignment.SplitTableRegionProcedure;</span>
<span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.master.procedure.DeleteTableProcedure;</span>
<span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.master.procedure.DisableTableProcedure;</span>
<span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;</span>
<span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;</span>
<span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;</span>
<span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.testclassification.ClientTests;</span>
<span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.testclassification.MediumTests;</span>
<span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.hbase.util.Bytes;</span>
<span class="source-line-no">045</span><span id="line-45">import org.apache.hadoop.hbase.util.Threads;</span>
<span class="source-line-no">046</span><span id="line-46">import org.junit.After;</span>
<span class="source-line-no">047</span><span id="line-47">import org.junit.Before;</span>
<span class="source-line-no">048</span><span id="line-48">import org.junit.ClassRule;</span>
<span class="source-line-no">049</span><span id="line-49">import org.junit.Ignore;</span>
<span class="source-line-no">050</span><span id="line-50">import org.junit.Rule;</span>
<span class="source-line-no">051</span><span id="line-51">import org.junit.Test;</span>
<span class="source-line-no">052</span><span id="line-52">import org.junit.experimental.categories.Category;</span>
<span class="source-line-no">053</span><span id="line-53">import org.junit.rules.TestName;</span>
<span class="source-line-no">054</span><span id="line-54"></span>
<span class="source-line-no">055</span><span id="line-55">@Category({ MediumTests.class, ClientTests.class })</span>
<span class="source-line-no">056</span><span id="line-56">public class TestSplitOrMergeStatus {</span>
<span class="source-line-no">057</span><span id="line-57"></span>
<span class="source-line-no">058</span><span id="line-58"> @ClassRule</span>
<span class="source-line-no">059</span><span id="line-59"> public static final HBaseClassTestRule CLASS_RULE =</span>
<span class="source-line-no">060</span><span id="line-60"> HBaseClassTestRule.forClass(TestSplitOrMergeStatus.class);</span>
<span class="source-line-no">061</span><span id="line-61"></span>
<span class="source-line-no">062</span><span id="line-62"> private final static HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();</span>
<span class="source-line-no">063</span><span id="line-63"> private static byte[] FAMILY = Bytes.toBytes("testFamily");</span>
<span class="source-line-no">064</span><span id="line-64"></span>
<span class="source-line-no">065</span><span id="line-65"> @Rule</span>
<span class="source-line-no">066</span><span id="line-66"> public TestName name = new TestName();</span>
<span class="source-line-no">067</span><span id="line-67"></span>
<span class="source-line-no">068</span><span id="line-68"> @Before</span>
<span class="source-line-no">069</span><span id="line-69"> public void setUp() throws Exception {</span>
<span class="source-line-no">070</span><span id="line-70"> TEST_UTIL.startMiniCluster(2);</span>
<span class="source-line-no">071</span><span id="line-71"> }</span>
<span class="source-line-no">072</span><span id="line-72"></span>
<span class="source-line-no">073</span><span id="line-73"> @After</span>
<span class="source-line-no">074</span><span id="line-74"> public void tearDown() throws Exception {</span>
<span class="source-line-no">075</span><span id="line-75"> TEST_UTIL.shutdownMiniCluster();</span>
<span class="source-line-no">076</span><span id="line-76"> }</span>
<span class="source-line-no">077</span><span id="line-77"></span>
<span class="source-line-no">078</span><span id="line-78"> @Test</span>
<span class="source-line-no">079</span><span id="line-79"> public void testSplitSwitch() throws Exception {</span>
<span class="source-line-no">080</span><span id="line-80"> final TableName tableName = TableName.valueOf(name.getMethodName());</span>
<span class="source-line-no">081</span><span id="line-81"> Table t = TEST_UTIL.createTable(tableName, FAMILY);</span>
<span class="source-line-no">082</span><span id="line-82"> TEST_UTIL.loadTable(t, FAMILY, false);</span>
<span class="source-line-no">083</span><span id="line-83"></span>
<span class="source-line-no">084</span><span id="line-84"> RegionLocator locator = TEST_UTIL.getConnection().getRegionLocator(t.getName());</span>
<span class="source-line-no">085</span><span id="line-85"> int originalCount = locator.getAllRegionLocations().size();</span>
<span class="source-line-no">086</span><span id="line-86"></span>
<span class="source-line-no">087</span><span id="line-87"> Admin admin = TEST_UTIL.getAdmin();</span>
<span class="source-line-no">088</span><span id="line-88"> initSwitchStatus(admin);</span>
<span class="source-line-no">089</span><span id="line-89"> assertTrue(admin.splitSwitch(false, false));</span>
<span class="source-line-no">090</span><span id="line-90"> try {</span>
<span class="source-line-no">091</span><span id="line-91"> admin.split(t.getName());</span>
<span class="source-line-no">092</span><span id="line-92"> fail("Shouldn't get here");</span>
<span class="source-line-no">093</span><span id="line-93"> } catch (DoNotRetryIOException dnioe) {</span>
<span class="source-line-no">094</span><span id="line-94"> // Expected</span>
<span class="source-line-no">095</span><span id="line-95"> }</span>
<span class="source-line-no">096</span><span id="line-96"> int count = admin.getRegions(tableName).size();</span>
<span class="source-line-no">097</span><span id="line-97"> assertTrue(originalCount == count);</span>
<span class="source-line-no">098</span><span id="line-98"> assertFalse(admin.splitSwitch(true, false));</span>
<span class="source-line-no">099</span><span id="line-99"> admin.split(t.getName());</span>
<span class="source-line-no">100</span><span id="line-100"> while ((count = admin.getRegions(tableName).size()) == originalCount) {</span>
<span class="source-line-no">101</span><span id="line-101"> Threads.sleep(1);</span>
<span class="source-line-no">102</span><span id="line-102"> }</span>
<span class="source-line-no">103</span><span id="line-103"> count = admin.getRegions(tableName).size();</span>
<span class="source-line-no">104</span><span id="line-104"> assertTrue(originalCount &lt; count);</span>
<span class="source-line-no">105</span><span id="line-105"> admin.close();</span>
<span class="source-line-no">106</span><span id="line-106"> }</span>
<span class="source-line-no">107</span><span id="line-107"></span>
<span class="source-line-no">108</span><span id="line-108"> @Ignore</span>
<span class="source-line-no">109</span><span id="line-109"> @Test</span>
<span class="source-line-no">110</span><span id="line-110"> public void testMergeSwitch() throws Exception {</span>
<span class="source-line-no">111</span><span id="line-111"> final TableName tableName = TableName.valueOf(name.getMethodName());</span>
<span class="source-line-no">112</span><span id="line-112"> Table t = TEST_UTIL.createTable(tableName, FAMILY);</span>
<span class="source-line-no">113</span><span id="line-113"> TEST_UTIL.loadTable(t, FAMILY, false);</span>
<span class="source-line-no">114</span><span id="line-114"></span>
<span class="source-line-no">115</span><span id="line-115"> Admin admin = TEST_UTIL.getAdmin();</span>
<span class="source-line-no">116</span><span id="line-116"> int originalCount = admin.getRegions(tableName).size();</span>
<span class="source-line-no">117</span><span id="line-117"> initSwitchStatus(admin);</span>
<span class="source-line-no">118</span><span id="line-118"> admin.split(t.getName());</span>
<span class="source-line-no">119</span><span id="line-119"> int postSplitCount = -1;</span>
<span class="source-line-no">120</span><span id="line-120"> while ((postSplitCount = admin.getRegions(tableName).size()) == originalCount) {</span>
<span class="source-line-no">121</span><span id="line-121"> Threads.sleep(1);</span>
<span class="source-line-no">122</span><span id="line-122"> }</span>
<span class="source-line-no">123</span><span id="line-123"> assertTrue("originalCount=" + originalCount + ", newCount=" + postSplitCount,</span>
<span class="source-line-no">124</span><span id="line-124"> originalCount != postSplitCount);</span>
<span class="source-line-no">125</span><span id="line-125"></span>
<span class="source-line-no">126</span><span id="line-126"> // Merge switch is off so merge should NOT succeed.</span>
<span class="source-line-no">127</span><span id="line-127"> boolean result = admin.mergeSwitch(false, false);</span>
<span class="source-line-no">128</span><span id="line-128"> assertTrue(result);</span>
<span class="source-line-no">129</span><span id="line-129"> List&lt;RegionInfo&gt; regions = admin.getRegions(t.getName());</span>
<span class="source-line-no">130</span><span id="line-130"> assertTrue(regions.size() &gt; 1);</span>
<span class="source-line-no">131</span><span id="line-131"> Future&lt;?&gt; f = admin.mergeRegionsAsync(regions.get(0).getEncodedNameAsBytes(),</span>
<span class="source-line-no">132</span><span id="line-132"> regions.get(1).getEncodedNameAsBytes(), true);</span>
<span class="source-line-no">133</span><span id="line-133"> try {</span>
<span class="source-line-no">134</span><span id="line-134"> f.get(10, TimeUnit.SECONDS);</span>
<span class="source-line-no">135</span><span id="line-135"> fail("Should not get here.");</span>
<span class="source-line-no">136</span><span id="line-136"> } catch (ExecutionException ee) {</span>
<span class="source-line-no">137</span><span id="line-137"> // Expected.</span>
<span class="source-line-no">138</span><span id="line-138"> }</span>
<span class="source-line-no">139</span><span id="line-139"> int count = admin.getRegions(tableName).size();</span>
<span class="source-line-no">140</span><span id="line-140"> assertTrue("newCount=" + postSplitCount + ", count=" + count, postSplitCount == count);</span>
<span class="source-line-no">141</span><span id="line-141"></span>
<span class="source-line-no">142</span><span id="line-142"> result = admin.mergeSwitch(true, false);</span>
<span class="source-line-no">143</span><span id="line-143"> regions = admin.getRegions(t.getName());</span>
<span class="source-line-no">144</span><span id="line-144"> assertFalse(result);</span>
<span class="source-line-no">145</span><span id="line-145"> f = admin.mergeRegionsAsync(regions.get(0).getEncodedNameAsBytes(),</span>
<span class="source-line-no">146</span><span id="line-146"> regions.get(1).getEncodedNameAsBytes(), true);</span>
<span class="source-line-no">147</span><span id="line-147"> f.get(10, TimeUnit.SECONDS);</span>
<span class="source-line-no">148</span><span id="line-148"> count = admin.getRegions(tableName).size();</span>
<span class="source-line-no">149</span><span id="line-149"> assertTrue((postSplitCount / 2 /* Merge */) == count);</span>
<span class="source-line-no">150</span><span id="line-150"> admin.close();</span>
<span class="source-line-no">151</span><span id="line-151"> }</span>
<span class="source-line-no">152</span><span id="line-152"></span>
<span class="source-line-no">153</span><span id="line-153"> @Test</span>
<span class="source-line-no">154</span><span id="line-154"> public void testMultiSwitches() throws IOException {</span>
<span class="source-line-no">155</span><span id="line-155"> Admin admin = TEST_UTIL.getAdmin();</span>
<span class="source-line-no">156</span><span id="line-156"> assertTrue(admin.splitSwitch(false, false));</span>
<span class="source-line-no">157</span><span id="line-157"> assertTrue(admin.mergeSwitch(false, false));</span>
<span class="source-line-no">158</span><span id="line-158"></span>
<span class="source-line-no">159</span><span id="line-159"> assertFalse(admin.isSplitEnabled());</span>
<span class="source-line-no">160</span><span id="line-160"> assertFalse(admin.isMergeEnabled());</span>
<span class="source-line-no">161</span><span id="line-161"> admin.close();</span>
<span class="source-line-no">162</span><span id="line-162"> }</span>
<span class="source-line-no">163</span><span id="line-163"></span>
<span class="source-line-no">164</span><span id="line-164"> @Test</span>
<span class="source-line-no">165</span><span id="line-165"> public void testSplitRegionReplicaRitRecovery() throws Exception {</span>
<span class="source-line-no">166</span><span id="line-166"> int startRowNum = 11;</span>
<span class="source-line-no">167</span><span id="line-167"> int rowCount = 60;</span>
<span class="source-line-no">168</span><span id="line-168"> final TableName tableName = TableName.valueOf(name.getMethodName());</span>
<span class="source-line-no">169</span><span id="line-169"> final ProcedureExecutor&lt;MasterProcedureEnv&gt; procExec = getMasterProcedureExecutor();</span>
<span class="source-line-no">170</span><span id="line-170"> TEST_UTIL.getAdmin().createTable(TableDescriptorBuilder.newBuilder(tableName)</span>
<span class="source-line-no">171</span><span id="line-171"> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)).setRegionReplication(2).build());</span>
<span class="source-line-no">172</span><span id="line-172"> TEST_UTIL.waitUntilAllRegionsAssigned(tableName);</span>
<span class="source-line-no">173</span><span id="line-173"> ServerName serverName =</span>
<span class="source-line-no">174</span><span id="line-174"> RegionReplicaTestHelper.getRSCarryingReplica(TEST_UTIL, tableName, 1).get();</span>
<span class="source-line-no">175</span><span id="line-175"> List&lt;RegionInfo&gt; regions = TEST_UTIL.getAdmin().getRegions(tableName);</span>
<span class="source-line-no">176</span><span id="line-176"> insertData(tableName, startRowNum, rowCount);</span>
<span class="source-line-no">177</span><span id="line-177"> int splitRowNum = startRowNum + rowCount / 2;</span>
<span class="source-line-no">178</span><span id="line-178"> byte[] splitKey = Bytes.toBytes("" + splitRowNum);</span>
<span class="source-line-no">179</span><span id="line-179"> // Split region of the table</span>
<span class="source-line-no">180</span><span id="line-180"> long procId = procExec.submitProcedure(</span>
<span class="source-line-no">181</span><span id="line-181"> new SplitTableRegionProcedure(procExec.getEnvironment(), regions.get(0), splitKey));</span>
<span class="source-line-no">182</span><span id="line-182"> // Wait the completion</span>
<span class="source-line-no">183</span><span id="line-183"> ProcedureTestingUtility.waitProcedure(procExec, procId);</span>
<span class="source-line-no">184</span><span id="line-184"> // Disable the table</span>
<span class="source-line-no">185</span><span id="line-185"> long procId1 = procExec</span>
<span class="source-line-no">186</span><span id="line-186"> .submitProcedure(new DisableTableProcedure(procExec.getEnvironment(), tableName, false));</span>
<span class="source-line-no">187</span><span id="line-187"> // Wait the completion</span>
<span class="source-line-no">188</span><span id="line-188"> ProcedureTestingUtility.waitProcedure(procExec, procId1);</span>
<span class="source-line-no">189</span><span id="line-189"> // Delete Table</span>
<span class="source-line-no">190</span><span id="line-190"> long procId2 =</span>
<span class="source-line-no">191</span><span id="line-191"> procExec.submitProcedure(new DeleteTableProcedure(procExec.getEnvironment(), tableName));</span>
<span class="source-line-no">192</span><span id="line-192"> // Wait the completion</span>
<span class="source-line-no">193</span><span id="line-193"> ProcedureTestingUtility.waitProcedure(procExec, procId2);</span>
<span class="source-line-no">194</span><span id="line-194"> AssignmentTestingUtil.killRs(TEST_UTIL, serverName);</span>
<span class="source-line-no">195</span><span id="line-195"> Threads.sleepWithoutInterrupt(5000);</span>
<span class="source-line-no">196</span><span id="line-196"> boolean hasRegionsInTransition = TEST_UTIL.getMiniHBaseCluster().getMaster()</span>
<span class="source-line-no">197</span><span id="line-197"> .getAssignmentManager().getRegionStates().hasRegionsInTransition();</span>
<span class="source-line-no">198</span><span id="line-198"> assertEquals(false, hasRegionsInTransition);</span>
<span class="source-line-no">199</span><span id="line-199"> }</span>
<span class="source-line-no">200</span><span id="line-200"></span>
<span class="source-line-no">201</span><span id="line-201"> private ProcedureExecutor&lt;MasterProcedureEnv&gt; getMasterProcedureExecutor() {</span>
<span class="source-line-no">202</span><span id="line-202"> return TEST_UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor();</span>
<span class="source-line-no">203</span><span id="line-203"> }</span>
<span class="source-line-no">204</span><span id="line-204"></span>
<span class="source-line-no">205</span><span id="line-205"> private void insertData(final TableName tableName, int startRow, int rowCount)</span>
<span class="source-line-no">206</span><span id="line-206"> throws IOException {</span>
<span class="source-line-no">207</span><span id="line-207"> Table t = TEST_UTIL.getConnection().getTable(tableName);</span>
<span class="source-line-no">208</span><span id="line-208"> Put p;</span>
<span class="source-line-no">209</span><span id="line-209"> for (int i = 0; i &lt; rowCount; i++) {</span>
<span class="source-line-no">210</span><span id="line-210"> p = new Put(Bytes.toBytes("" + (startRow + i)));</span>
<span class="source-line-no">211</span><span id="line-211"> p.addColumn(FAMILY, Bytes.toBytes("q1"), Bytes.toBytes(i));</span>
<span class="source-line-no">212</span><span id="line-212"> t.put(p);</span>
<span class="source-line-no">213</span><span id="line-213"> }</span>
<span class="source-line-no">214</span><span id="line-214"> }</span>
<span class="source-line-no">215</span><span id="line-215"></span>
<span class="source-line-no">216</span><span id="line-216"> private void initSwitchStatus(Admin admin) throws IOException {</span>
<span class="source-line-no">217</span><span id="line-217"> if (!admin.isSplitEnabled()) {</span>
<span class="source-line-no">218</span><span id="line-218"> admin.splitSwitch(true, false);</span>
<span class="source-line-no">219</span><span id="line-219"> }</span>
<span class="source-line-no">220</span><span id="line-220"> if (!admin.isMergeEnabled()) {</span>
<span class="source-line-no">221</span><span id="line-221"> admin.mergeSwitch(true, false);</span>
<span class="source-line-no">222</span><span id="line-222"> }</span>
<span class="source-line-no">223</span><span id="line-223"> assertTrue(admin.isSplitEnabled());</span>
<span class="source-line-no">224</span><span id="line-224"> assertTrue(admin.isMergeEnabled());</span>
<span class="source-line-no">225</span><span id="line-225"> }</span>
<span class="source-line-no">226</span><span id="line-226">}</span>
</pre>
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