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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;</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"></span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.MultithreadedTestUtil.TestContext;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.MultithreadedTestUtil.TestThread;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.master.CachedClusterId;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.master.HMaster;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.testclassification.MediumTests;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.junit.AfterClass;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.junit.BeforeClass;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.junit.ClassRule;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.junit.Test;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">033</span><span id="line-33"></span> |
| <span class="source-line-no">034</span><span id="line-34">@Category(MediumTests.class)</span> |
| <span class="source-line-no">035</span><span id="line-35">public class TestCachedClusterId {</span> |
| <span class="source-line-no">036</span><span id="line-36"> @ClassRule</span> |
| <span class="source-line-no">037</span><span id="line-37"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">038</span><span id="line-38"> HBaseClassTestRule.forClass(TestCachedClusterId.class);</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40"> private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();</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 String clusterId;</span> |
| <span class="source-line-no">043</span><span id="line-43"> private static HMaster activeMaster;</span> |
| <span class="source-line-no">044</span><span id="line-44"> private static HMaster standByMaster;</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46"> private static class GetClusterIdThread extends TestThread {</span> |
| <span class="source-line-no">047</span><span id="line-47"> CachedClusterId cachedClusterId;</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> public GetClusterIdThread(TestContext ctx, CachedClusterId clusterId) {</span> |
| <span class="source-line-no">050</span><span id="line-50"> super(ctx);</span> |
| <span class="source-line-no">051</span><span id="line-51"> cachedClusterId = clusterId;</span> |
| <span class="source-line-no">052</span><span id="line-52"> }</span> |
| <span class="source-line-no">053</span><span id="line-53"></span> |
| <span class="source-line-no">054</span><span id="line-54"> @Override</span> |
| <span class="source-line-no">055</span><span id="line-55"> public void doWork() throws Exception {</span> |
| <span class="source-line-no">056</span><span id="line-56"> assertEquals(clusterId, cachedClusterId.getFromCacheOrFetch());</span> |
| <span class="source-line-no">057</span><span id="line-57"> }</span> |
| <span class="source-line-no">058</span><span id="line-58"> }</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> @BeforeClass</span> |
| <span class="source-line-no">061</span><span id="line-61"> public static void setUp() throws Exception {</span> |
| <span class="source-line-no">062</span><span id="line-62"> TEST_UTIL.startMiniCluster(1);</span> |
| <span class="source-line-no">063</span><span id="line-63"> activeMaster = TEST_UTIL.getHBaseCluster().getMaster();</span> |
| <span class="source-line-no">064</span><span id="line-64"> clusterId = activeMaster.getClusterId();</span> |
| <span class="source-line-no">065</span><span id="line-65"> standByMaster = TEST_UTIL.getHBaseCluster().startMaster().getMaster();</span> |
| <span class="source-line-no">066</span><span id="line-66"> }</span> |
| <span class="source-line-no">067</span><span id="line-67"></span> |
| <span class="source-line-no">068</span><span id="line-68"> @AfterClass</span> |
| <span class="source-line-no">069</span><span id="line-69"> public static void tearDown() throws Exception {</span> |
| <span class="source-line-no">070</span><span id="line-70"> TEST_UTIL.shutdownMiniCluster();</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"> @Test</span> |
| <span class="source-line-no">074</span><span id="line-74"> public void testClusterIdMatch() {</span> |
| <span class="source-line-no">075</span><span id="line-75"> assertEquals(clusterId, standByMaster.getClusterId());</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 testMultiThreadedGetClusterId() throws Exception {</span> |
| <span class="source-line-no">080</span><span id="line-80"> Configuration conf = TEST_UTIL.getConfiguration();</span> |
| <span class="source-line-no">081</span><span id="line-81"> CachedClusterId cachedClusterId =</span> |
| <span class="source-line-no">082</span><span id="line-82"> new CachedClusterId(TEST_UTIL.getHBaseCluster().getMaster(), conf);</span> |
| <span class="source-line-no">083</span><span id="line-83"> TestContext context = new TestContext(conf);</span> |
| <span class="source-line-no">084</span><span id="line-84"> int numThreads = 16;</span> |
| <span class="source-line-no">085</span><span id="line-85"> for (int i = 0; i < numThreads; i++) {</span> |
| <span class="source-line-no">086</span><span id="line-86"> context.addThread(new GetClusterIdThread(context, cachedClusterId));</span> |
| <span class="source-line-no">087</span><span id="line-87"> }</span> |
| <span class="source-line-no">088</span><span id="line-88"> context.startThreads();</span> |
| <span class="source-line-no">089</span><span id="line-89"> context.stop();</span> |
| <span class="source-line-no">090</span><span id="line-90"> int cacheMisses = cachedClusterId.getCacheStats();</span> |
| <span class="source-line-no">091</span><span id="line-91"> assertEquals(cacheMisses, 1);</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93">}</span> |
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