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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.master;</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 junit.framework.TestCase.assertTrue;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.junit.Assert.assertEquals;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.junit.Assert.assertFalse;</span> |
| <span class="source-line-no">023</span><span id="line-23">import static org.junit.Assert.assertNotNull;</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 org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.HBaseTestingUtil;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.MiniClusterRule;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.StartTestingClusterOption;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.testclassification.MasterTests;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.testclassification.MediumTests;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.junit.ClassRule;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.junit.Test;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">034</span><span id="line-34"></span> |
| <span class="source-line-no">035</span><span id="line-35">@Category({ MediumTests.class, MasterTests.class })</span> |
| <span class="source-line-no">036</span><span id="line-36">public class TestAlwaysStandByHMaster {</span> |
| <span class="source-line-no">037</span><span id="line-37"></span> |
| <span class="source-line-no">038</span><span id="line-38"> @ClassRule</span> |
| <span class="source-line-no">039</span><span id="line-39"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">040</span><span id="line-40"> HBaseClassTestRule.forClass(TestAlwaysStandByHMaster.class);</span> |
| <span class="source-line-no">041</span><span id="line-41"></span> |
| <span class="source-line-no">042</span><span id="line-42"> private static final StartTestingClusterOption OPTION = StartTestingClusterOption.builder()</span> |
| <span class="source-line-no">043</span><span id="line-43"> .numAlwaysStandByMasters(1).numMasters(1).numRegionServers(1).build();</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> @ClassRule</span> |
| <span class="source-line-no">046</span><span id="line-46"> public static final MiniClusterRule miniClusterRule =</span> |
| <span class="source-line-no">047</span><span id="line-47"> MiniClusterRule.newBuilder().setMiniClusterOption(OPTION).build();</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> /**</span> |
| <span class="source-line-no">050</span><span id="line-50"> * Tests that the AlwaysStandByHMaster does not transition to active state even if no active</span> |
| <span class="source-line-no">051</span><span id="line-51"> * master exists.</span> |
| <span class="source-line-no">052</span><span id="line-52"> */</span> |
| <span class="source-line-no">053</span><span id="line-53"> @Test</span> |
| <span class="source-line-no">054</span><span id="line-54"> public void testAlwaysStandBy() throws Exception {</span> |
| <span class="source-line-no">055</span><span id="line-55"> HBaseTestingUtil testUtil = miniClusterRule.getTestingUtility();</span> |
| <span class="source-line-no">056</span><span id="line-56"> // Make sure there is an active master.</span> |
| <span class="source-line-no">057</span><span id="line-57"> assertNotNull(testUtil.getMiniHBaseCluster().getMaster());</span> |
| <span class="source-line-no">058</span><span id="line-58"> assertEquals(2, testUtil.getMiniHBaseCluster().getMasterThreads().size());</span> |
| <span class="source-line-no">059</span><span id="line-59"> // Kill the only active master.</span> |
| <span class="source-line-no">060</span><span id="line-60"> testUtil.getMiniHBaseCluster().stopMaster(0).join();</span> |
| <span class="source-line-no">061</span><span id="line-61"> // Wait for 5s to make sure the always standby doesn't transition to active state.</span> |
| <span class="source-line-no">062</span><span id="line-62"> assertFalse(testUtil.getMiniHBaseCluster().waitForActiveAndReadyMaster(5000));</span> |
| <span class="source-line-no">063</span><span id="line-63"> // Add a new master.</span> |
| <span class="source-line-no">064</span><span id="line-64"> HMaster newActive = testUtil.getMiniHBaseCluster().startMaster().getMaster();</span> |
| <span class="source-line-no">065</span><span id="line-65"> assertTrue(testUtil.getMiniHBaseCluster().waitForActiveAndReadyMaster(5000));</span> |
| <span class="source-line-no">066</span><span id="line-66"> // Newly added master should be the active.</span> |
| <span class="source-line-no">067</span><span id="line-67"> assertEquals(newActive.getServerName(),</span> |
| <span class="source-line-no">068</span><span id="line-68"> testUtil.getMiniHBaseCluster().getMaster().getServerName());</span> |
| <span class="source-line-no">069</span><span id="line-69"> }</span> |
| <span class="source-line-no">070</span><span id="line-70">}</span> |
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