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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.assignment;<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.assertNotNull;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.junit.Assert.assertNull;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.concurrent.CountDownLatch;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.conf.Configuration;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HConstants;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.PleaseHoldException;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.ServerName;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.StartTestingClusterOption;<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.client.RegionInfo;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.master.HMaster;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.master.MasterServices;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.master.RegionPlan;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.master.ServerManager;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.junit.AfterClass;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.junit.BeforeClass;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.junit.ClassRule;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.junit.Test;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.junit.experimental.categories.Category;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span><a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionRequest;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionResponse;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span>@Category({ MasterTests.class, MediumTests.class })<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>public class TestRegionAssignedToMultipleRegionServers {<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> @ClassRule<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> HBaseClassTestRule.forClass(TestRegionAssignedToMultipleRegionServers.class);<a name="line.59"></a> |
| <span class="sourceLineNo">060</span><a name="line.60"></a> |
| <span class="sourceLineNo">061</span> private static final List<ServerName> EXCLUDE_SERVERS = new ArrayList<>();<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private static boolean HALT = false;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> private static boolean KILL = false;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private static CountDownLatch ARRIVE;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> private static final class ServerManagerForTest extends ServerManager {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public ServerManagerForTest(MasterServices master) {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> super(master);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> }<a name="line.73"></a> |
| <span class="sourceLineNo">074</span><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> @Override<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> public List<ServerName> createDestinationServersList() {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> return super.createDestinationServersList(EXCLUDE_SERVERS);<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> }<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> private static final class AssignmentManagerForTest extends AssignmentManager {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span><a name="line.82"></a> |
| <span class="sourceLineNo">083</span> public AssignmentManagerForTest(MasterServices master) {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> super(master);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> }<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> @Override<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> public ReportRegionStateTransitionResponse reportRegionStateTransition(<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> ReportRegionStateTransitionRequest req) throws PleaseHoldException {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (req.getTransition(0).getTransitionCode() == TransitionCode.OPENED) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> if (ARRIVE != null) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> ARRIVE.countDown();<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> ARRIVE = null;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> while (HALT) {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> try {<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> Thread.sleep(100);<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> } catch (InterruptedException e) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> throw new RuntimeException(e);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> }<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> if (KILL) {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> throw new PleaseHoldException("Inject error!");<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> return super.reportRegionStateTransition(req);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> public static final class HMasterForTest extends HMaster {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> public HMasterForTest(Configuration conf) throws IOException {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> super(conf);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> }<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> @Override<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> protected AssignmentManager createAssignmentManager(MasterServices master) {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> return new AssignmentManagerForTest(master);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span><a name="line.120"></a> |
| <span class="sourceLineNo">121</span> @Override<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> protected ServerManager createServerManager(MasterServices master) throws IOException {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> setupClusterConnection();<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> return new ServerManagerForTest(master);<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> }<a name="line.126"></a> |
| <span class="sourceLineNo">127</span><a name="line.127"></a> |
| <span class="sourceLineNo">128</span> private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();<a name="line.128"></a> |
| <span class="sourceLineNo">129</span><a name="line.129"></a> |
| <span class="sourceLineNo">130</span> private static TableName NAME = TableName.valueOf("Assign");<a name="line.130"></a> |
| <span class="sourceLineNo">131</span><a name="line.131"></a> |
| <span class="sourceLineNo">132</span> private static byte[] CF = Bytes.toBytes("cf");<a name="line.132"></a> |
| <span class="sourceLineNo">133</span><a name="line.133"></a> |
| <span class="sourceLineNo">134</span> @BeforeClass<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> public static void setUp() throws Exception {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> UTIL.getConfiguration().setClass(HConstants.MASTER_IMPL, HMasterForTest.class, HMaster.class);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> UTIL.startMiniCluster(<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> StartTestingClusterOption.builder().numMasters(2).numRegionServers(2).build());<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> UTIL.createTable(NAME, CF);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> UTIL.waitTableAvailable(NAME);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> UTIL.getAdmin().balancerSwitch(false, true);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> }<a name="line.142"></a> |
| <span class="sourceLineNo">143</span><a name="line.143"></a> |
| <span class="sourceLineNo">144</span> @AfterClass<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> public static void tearDown() throws Exception {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> UTIL.shutdownMiniCluster();<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> @Test<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> public void test() throws Exception {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> RegionInfo region = UTIL.getMiniHBaseCluster().getRegions(NAME).get(0).getRegionInfo();<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> AssignmentManager am = UTIL.getMiniHBaseCluster().getMaster().getAssignmentManager();<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> RegionStateNode rsn = am.getRegionStates().getRegionStateNode(region);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> ServerName sn = rsn.getRegionLocation();<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> ARRIVE = new CountDownLatch(1);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> HALT = true;<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> am.moveAsync(new RegionPlan(region, sn, sn));<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> ARRIVE.await();<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span> // let's restart the master<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> EXCLUDE_SERVERS.add(rsn.getRegionLocation());<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> KILL = true;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> HMaster activeMaster = UTIL.getMiniHBaseCluster().getMaster();<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> activeMaster.abort("For testing");<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> activeMaster.join();<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> KILL = false;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span><a name="line.168"></a> |
| <span class="sourceLineNo">169</span> // sleep a while to reproduce the problem, as after the fix in HBASE-21472 the execution logic<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> // is changed so the old code to reproduce the problem can not compile...<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> Thread.sleep(10000);<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> HALT = false;<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> Thread.sleep(5000);<a name="line.173"></a> |
| <span class="sourceLineNo">174</span><a name="line.174"></a> |
| <span class="sourceLineNo">175</span> HRegionServer rs = UTIL.getMiniHBaseCluster().getRegionServer(sn);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> assertNotNull(rs.getRegion(region.getEncodedName()));<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> assertNull(UTIL.getOtherRegionServer(rs).getRegion(region.getEncodedName()));<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> }<a name="line.178"></a> |
| <span class="sourceLineNo">179</span>}<a name="line.179"></a> |
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