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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.assertFalse;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.junit.Assert.assertNull;</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"></span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.IOException;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.ArrayList;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.Collections;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.List;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.HBaseTestingUtil;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.StartTestingClusterOption;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.master.HMaster;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.master.MasterServices;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.master.assignment.AssignmentManager;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.master.assignment.RegionStateNode;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.master.region.MasterRegion;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.procedure2.Procedure;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.procedure2.ProcedureSuspendedException;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.procedure2.ProcedureYieldException;</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.testclassification.MiscTests;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.junit.AfterClass;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.junit.BeforeClass;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.junit.ClassRule;</span> |
| <span class="source-line-no">048</span><span id="line-48">import org.junit.Test;</span> |
| <span class="source-line-no">049</span><span id="line-49">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51">@Category({ MiscTests.class, MediumTests.class })</span> |
| <span class="source-line-no">052</span><span id="line-52">public class TestFailedMetaReplicaAssigment {</span> |
| <span class="source-line-no">053</span><span id="line-53"></span> |
| <span class="source-line-no">054</span><span id="line-54"> @ClassRule</span> |
| <span class="source-line-no">055</span><span id="line-55"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">056</span><span id="line-56"> HBaseClassTestRule.forClass(TestFailedMetaReplicaAssigment.class);</span> |
| <span class="source-line-no">057</span><span id="line-57"></span> |
| <span class="source-line-no">058</span><span id="line-58"> private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();</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"> // using our rigged master, to force a failed meta replica assignment when start up master</span> |
| <span class="source-line-no">063</span><span id="line-63"> // this test can be removed once we remove the HConstants.META_REPLICAS_NUM config.</span> |
| <span class="source-line-no">064</span><span id="line-64"> Configuration conf = TEST_UTIL.getConfiguration();</span> |
| <span class="source-line-no">065</span><span id="line-65"> conf.setInt(HConstants.META_REPLICAS_NUM, 3);</span> |
| <span class="source-line-no">066</span><span id="line-66"> StartTestingClusterOption option =</span> |
| <span class="source-line-no">067</span><span id="line-67"> StartTestingClusterOption.builder().numAlwaysStandByMasters(1).numMasters(1)</span> |
| <span class="source-line-no">068</span><span id="line-68"> .numRegionServers(1).masterClass(BrokenMetaReplicaMaster.class).build();</span> |
| <span class="source-line-no">069</span><span id="line-69"> TEST_UTIL.startMiniCluster(option);</span> |
| <span class="source-line-no">070</span><span id="line-70"> }</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> @AfterClass</span> |
| <span class="source-line-no">073</span><span id="line-73"> public static void tearDown() throws IOException {</span> |
| <span class="source-line-no">074</span><span id="line-74"> TEST_UTIL.shutdownMiniCluster();</span> |
| <span class="source-line-no">075</span><span id="line-75"> }</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> @Test</span> |
| <span class="source-line-no">078</span><span id="line-78"> public void testFailedReplicaAssignment() throws InterruptedException {</span> |
| <span class="source-line-no">079</span><span id="line-79"> HMaster master = TEST_UTIL.getMiniHBaseCluster().getMaster();</span> |
| <span class="source-line-no">080</span><span id="line-80"> // waiting for master to come up</span> |
| <span class="source-line-no">081</span><span id="line-81"> TEST_UTIL.waitFor(30000, () -> master.isInitialized());</span> |
| <span class="source-line-no">082</span><span id="line-82"></span> |
| <span class="source-line-no">083</span><span id="line-83"> AssignmentManager am = master.getAssignmentManager();</span> |
| <span class="source-line-no">084</span><span id="line-84"> // showing one of the replicas got assigned</span> |
| <span class="source-line-no">085</span><span id="line-85"> RegionInfo metaReplicaHri =</span> |
| <span class="source-line-no">086</span><span id="line-86"> RegionReplicaUtil.getRegionInfoForReplica(RegionInfoBuilder.FIRST_META_REGIONINFO, 1);</span> |
| <span class="source-line-no">087</span><span id="line-87"> // we use assignAsync so we need to wait a bit</span> |
| <span class="source-line-no">088</span><span id="line-88"> TEST_UTIL.waitFor(30000, () -> {</span> |
| <span class="source-line-no">089</span><span id="line-89"> RegionStateNode metaReplicaRegionNode =</span> |
| <span class="source-line-no">090</span><span id="line-90"> am.getRegionStates().getOrCreateRegionStateNode(metaReplicaHri);</span> |
| <span class="source-line-no">091</span><span id="line-91"> return metaReplicaRegionNode.getRegionLocation() != null;</span> |
| <span class="source-line-no">092</span><span id="line-92"> });</span> |
| <span class="source-line-no">093</span><span id="line-93"> // showing one of the replicas failed to be assigned</span> |
| <span class="source-line-no">094</span><span id="line-94"> RegionInfo metaReplicaHri2 =</span> |
| <span class="source-line-no">095</span><span id="line-95"> RegionReplicaUtil.getRegionInfoForReplica(RegionInfoBuilder.FIRST_META_REGIONINFO, 2);</span> |
| <span class="source-line-no">096</span><span id="line-96"> RegionStateNode metaReplicaRegionNode2 =</span> |
| <span class="source-line-no">097</span><span id="line-97"> am.getRegionStates().getOrCreateRegionStateNode(metaReplicaHri2);</span> |
| <span class="source-line-no">098</span><span id="line-98"> // wait for several seconds to make sure that it is not assigned</span> |
| <span class="source-line-no">099</span><span id="line-99"> for (int i = 0; i < 3; i++) {</span> |
| <span class="source-line-no">100</span><span id="line-100"> Thread.sleep(2000);</span> |
| <span class="source-line-no">101</span><span id="line-101"> assertNull(metaReplicaRegionNode2.getRegionLocation());</span> |
| <span class="source-line-no">102</span><span id="line-102"> }</span> |
| <span class="source-line-no">103</span><span id="line-103"></span> |
| <span class="source-line-no">104</span><span id="line-104"> // showing master is active and running</span> |
| <span class="source-line-no">105</span><span id="line-105"> assertFalse(master.isStopping());</span> |
| <span class="source-line-no">106</span><span id="line-106"> assertFalse(master.isStopped());</span> |
| <span class="source-line-no">107</span><span id="line-107"> assertTrue(master.isActiveMaster());</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> public static class BrokenTransitRegionStateProcedure extends TransitRegionStateProcedure {</span> |
| <span class="source-line-no">111</span><span id="line-111"></span> |
| <span class="source-line-no">112</span><span id="line-112"> public BrokenTransitRegionStateProcedure() {</span> |
| <span class="source-line-no">113</span><span id="line-113"> super(null, null, null, false, TransitionType.ASSIGN);</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"></span> |
| <span class="source-line-no">116</span><span id="line-116"> public BrokenTransitRegionStateProcedure(MasterProcedureEnv env, RegionInfo hri) {</span> |
| <span class="source-line-no">117</span><span id="line-117"> super(env, hri, null, false, TransitionType.ASSIGN);</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> @Override</span> |
| <span class="source-line-no">121</span><span id="line-121"> protected Procedure[] execute(MasterProcedureEnv env)</span> |
| <span class="source-line-no">122</span><span id="line-122"> throws ProcedureSuspendedException, ProcedureYieldException, InterruptedException {</span> |
| <span class="source-line-no">123</span><span id="line-123"> throw new ProcedureSuspendedException("Never end procedure!");</span> |
| <span class="source-line-no">124</span><span id="line-124"> }</span> |
| <span class="source-line-no">125</span><span id="line-125"> }</span> |
| <span class="source-line-no">126</span><span id="line-126"></span> |
| <span class="source-line-no">127</span><span id="line-127"> public static class BrokenMetaReplicaMaster extends HMaster {</span> |
| <span class="source-line-no">128</span><span id="line-128"> public BrokenMetaReplicaMaster(final Configuration conf) throws IOException {</span> |
| <span class="source-line-no">129</span><span id="line-129"> super(conf);</span> |
| <span class="source-line-no">130</span><span id="line-130"> }</span> |
| <span class="source-line-no">131</span><span id="line-131"></span> |
| <span class="source-line-no">132</span><span id="line-132"> @Override</span> |
| <span class="source-line-no">133</span><span id="line-133"> public AssignmentManager createAssignmentManager(MasterServices master,</span> |
| <span class="source-line-no">134</span><span id="line-134"> MasterRegion masterRegion) {</span> |
| <span class="source-line-no">135</span><span id="line-135"> return new BrokenMasterMetaAssignmentManager(master, masterRegion);</span> |
| <span class="source-line-no">136</span><span id="line-136"> }</span> |
| <span class="source-line-no">137</span><span id="line-137"> }</span> |
| <span class="source-line-no">138</span><span id="line-138"></span> |
| <span class="source-line-no">139</span><span id="line-139"> public static class BrokenMasterMetaAssignmentManager extends AssignmentManager {</span> |
| <span class="source-line-no">140</span><span id="line-140"> MasterServices master;</span> |
| <span class="source-line-no">141</span><span id="line-141"></span> |
| <span class="source-line-no">142</span><span id="line-142"> public BrokenMasterMetaAssignmentManager(final MasterServices master,</span> |
| <span class="source-line-no">143</span><span id="line-143"> MasterRegion masterRegion) {</span> |
| <span class="source-line-no">144</span><span id="line-144"> super(master, masterRegion);</span> |
| <span class="source-line-no">145</span><span id="line-145"> this.master = master;</span> |
| <span class="source-line-no">146</span><span id="line-146"> }</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> @Override</span> |
| <span class="source-line-no">149</span><span id="line-149"> public TransitRegionStateProcedure[] createAssignProcedures(List<RegionInfo> hris) {</span> |
| <span class="source-line-no">150</span><span id="line-150"> List<TransitRegionStateProcedure> procs = new ArrayList<>();</span> |
| <span class="source-line-no">151</span><span id="line-151"> for (RegionInfo hri : hris) {</span> |
| <span class="source-line-no">152</span><span id="line-152"> if (hri.isMetaRegion() && hri.getReplicaId() == 2) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> RegionStateNode regionNode = getRegionStates().getOrCreateRegionStateNode(hri);</span> |
| <span class="source-line-no">154</span><span id="line-154"> regionNode.lock();</span> |
| <span class="source-line-no">155</span><span id="line-155"> try {</span> |
| <span class="source-line-no">156</span><span id="line-156"> procs.add(regionNode.setProcedure(new BrokenTransitRegionStateProcedure(</span> |
| <span class="source-line-no">157</span><span id="line-157"> master.getMasterProcedureExecutor().getEnvironment(), hri)));</span> |
| <span class="source-line-no">158</span><span id="line-158"> } finally {</span> |
| <span class="source-line-no">159</span><span id="line-159"> regionNode.unlock();</span> |
| <span class="source-line-no">160</span><span id="line-160"> }</span> |
| <span class="source-line-no">161</span><span id="line-161"> } else {</span> |
| <span class="source-line-no">162</span><span id="line-162"> procs.add(super.createAssignProcedures(Collections.singletonList(hri))[0]);</span> |
| <span class="source-line-no">163</span><span id="line-163"> }</span> |
| <span class="source-line-no">164</span><span id="line-164"> }</span> |
| <span class="source-line-no">165</span><span id="line-165"> return procs.toArray(new TransitRegionStateProcedure[0]);</span> |
| <span class="source-line-no">166</span><span id="line-166"> }</span> |
| <span class="source-line-no">167</span><span id="line-167"> }</span> |
| <span class="source-line-no">168</span><span id="line-168">}</span> |
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| </div> |
| </main> |
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