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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.procedure;</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.assertTrue;</span>
<span class="source-line-no">022</span><span id="line-22"></span>
<span class="source-line-no">023</span><span id="line-23">import java.io.IOException;</span>
<span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.conf.Configuration;</span>
<span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.HBaseTestingUtil;</span>
<span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.ServerName;</span>
<span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.SingleProcessHBaseCluster;</span>
<span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.TableName;</span>
<span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.client.RegionInfo;</span>
<span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.client.RegionReplicaTestHelper;</span>
<span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.client.Table;</span>
<span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.master.HMaster;</span>
<span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.master.assignment.AssignmentTestingUtil;</span>
<span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;</span>
<span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;</span>
<span class="source-line-no">036</span><span id="line-36">import org.junit.After;</span>
<span class="source-line-no">037</span><span id="line-37">import org.junit.Before;</span>
<span class="source-line-no">038</span><span id="line-38">import org.slf4j.Logger;</span>
<span class="source-line-no">039</span><span id="line-39">import org.slf4j.LoggerFactory;</span>
<span class="source-line-no">040</span><span id="line-40"></span>
<span class="source-line-no">041</span><span id="line-41">public class TestSCPBase {</span>
<span class="source-line-no">042</span><span id="line-42"> private static final Logger LOG = LoggerFactory.getLogger(TestSCPBase.class);</span>
<span class="source-line-no">043</span><span id="line-43"> static final int RS_COUNT = 3;</span>
<span class="source-line-no">044</span><span id="line-44"></span>
<span class="source-line-no">045</span><span id="line-45"> protected HBaseTestingUtil util;</span>
<span class="source-line-no">046</span><span id="line-46"></span>
<span class="source-line-no">047</span><span id="line-47"> protected void setupConf(Configuration conf) {</span>
<span class="source-line-no">048</span><span id="line-48"> conf.setInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS, 1);</span>
<span class="source-line-no">049</span><span id="line-49"> }</span>
<span class="source-line-no">050</span><span id="line-50"></span>
<span class="source-line-no">051</span><span id="line-51"> @Before</span>
<span class="source-line-no">052</span><span id="line-52"> public void setup() throws Exception {</span>
<span class="source-line-no">053</span><span id="line-53"> this.util = new HBaseTestingUtil();</span>
<span class="source-line-no">054</span><span id="line-54"> setupConf(this.util.getConfiguration());</span>
<span class="source-line-no">055</span><span id="line-55"> startMiniCluster();</span>
<span class="source-line-no">056</span><span id="line-56"> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(</span>
<span class="source-line-no">057</span><span id="line-57"> this.util.getHBaseCluster().getMaster().getMasterProcedureExecutor(), false);</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"> protected void startMiniCluster() throws Exception {</span>
<span class="source-line-no">061</span><span id="line-61"> this.util.startMiniCluster(RS_COUNT);</span>
<span class="source-line-no">062</span><span id="line-62"> }</span>
<span class="source-line-no">063</span><span id="line-63"></span>
<span class="source-line-no">064</span><span id="line-64"> @After</span>
<span class="source-line-no">065</span><span id="line-65"> public void tearDown() throws Exception {</span>
<span class="source-line-no">066</span><span id="line-66"> SingleProcessHBaseCluster cluster = this.util.getHBaseCluster();</span>
<span class="source-line-no">067</span><span id="line-67"> HMaster master = cluster == null ? null : cluster.getMaster();</span>
<span class="source-line-no">068</span><span id="line-68"> if (master != null &amp;&amp; master.getMasterProcedureExecutor() != null) {</span>
<span class="source-line-no">069</span><span id="line-69"> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(master.getMasterProcedureExecutor(),</span>
<span class="source-line-no">070</span><span id="line-70"> false);</span>
<span class="source-line-no">071</span><span id="line-71"> }</span>
<span class="source-line-no">072</span><span id="line-72"> this.util.shutdownMiniCluster();</span>
<span class="source-line-no">073</span><span id="line-73"> }</span>
<span class="source-line-no">074</span><span id="line-74"></span>
<span class="source-line-no">075</span><span id="line-75"> /**</span>
<span class="source-line-no">076</span><span id="line-76"> * Run server crash procedure steps twice to test idempotency and that we are persisting all</span>
<span class="source-line-no">077</span><span id="line-77"> * needed state.</span>
<span class="source-line-no">078</span><span id="line-78"> */</span>
<span class="source-line-no">079</span><span id="line-79"> protected void testRecoveryAndDoubleExecution(boolean carryingMeta, boolean doubleExecution)</span>
<span class="source-line-no">080</span><span id="line-80"> throws Exception {</span>
<span class="source-line-no">081</span><span id="line-81"> final TableName tableName = TableName.valueOf("testRecoveryAndDoubleExecution-carryingMeta-"</span>
<span class="source-line-no">082</span><span id="line-82"> + carryingMeta + "-doubleExecution-" + doubleExecution);</span>
<span class="source-line-no">083</span><span id="line-83"> try (Table t = createTable(tableName)) {</span>
<span class="source-line-no">084</span><span id="line-84"> // Load the table with a bit of data so some logs to split and some edits in each region.</span>
<span class="source-line-no">085</span><span id="line-85"> this.util.loadTable(t, HBaseTestingUtil.COLUMNS[0]);</span>
<span class="source-line-no">086</span><span id="line-86"> final int count = HBaseTestingUtil.countRows(t);</span>
<span class="source-line-no">087</span><span id="line-87"> assertTrue("expected some rows", count &gt; 0);</span>
<span class="source-line-no">088</span><span id="line-88"> final String checksum = util.checksumRows(t);</span>
<span class="source-line-no">089</span><span id="line-89"> // Run the procedure executor outside the master so we can mess with it. Need to disable</span>
<span class="source-line-no">090</span><span id="line-90"> // Master's running of the server crash processing.</span>
<span class="source-line-no">091</span><span id="line-91"> final HMaster master = this.util.getHBaseCluster().getMaster();</span>
<span class="source-line-no">092</span><span id="line-92"> final ProcedureExecutor&lt;MasterProcedureEnv&gt; procExec = master.getMasterProcedureExecutor();</span>
<span class="source-line-no">093</span><span id="line-93"> // find the first server that match the request and executes the test</span>
<span class="source-line-no">094</span><span id="line-94"> ServerName rsToKill = null;</span>
<span class="source-line-no">095</span><span id="line-95"> for (RegionInfo hri : util.getAdmin().getRegions(tableName)) {</span>
<span class="source-line-no">096</span><span id="line-96"> final ServerName serverName = AssignmentTestingUtil.getServerHoldingRegion(util, hri);</span>
<span class="source-line-no">097</span><span id="line-97"> if (AssignmentTestingUtil.isServerHoldingMeta(util, serverName) == carryingMeta) {</span>
<span class="source-line-no">098</span><span id="line-98"> rsToKill = serverName;</span>
<span class="source-line-no">099</span><span id="line-99"> break;</span>
<span class="source-line-no">100</span><span id="line-100"> }</span>
<span class="source-line-no">101</span><span id="line-101"> }</span>
<span class="source-line-no">102</span><span id="line-102"> // Enable test flags and then queue the crash procedure.</span>
<span class="source-line-no">103</span><span id="line-103"> ProcedureTestingUtility.waitNoProcedureRunning(procExec);</span>
<span class="source-line-no">104</span><span id="line-104"> if (doubleExecution) {</span>
<span class="source-line-no">105</span><span id="line-105"> // For SCP, if you enable this then we will enter an infinite loop, as we will crash between</span>
<span class="source-line-no">106</span><span id="line-106"> // queue and open for TRSP, and then going back to queue, as we will use the crash rs as the</span>
<span class="source-line-no">107</span><span id="line-107"> // target server since it is recored in hbase:meta.</span>
<span class="source-line-no">108</span><span id="line-108"> ProcedureTestingUtility.setKillIfHasParent(procExec, false);</span>
<span class="source-line-no">109</span><span id="line-109"> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, true);</span>
<span class="source-line-no">110</span><span id="line-110"> // kill the RS</span>
<span class="source-line-no">111</span><span id="line-111"> AssignmentTestingUtil.killRs(util, rsToKill);</span>
<span class="source-line-no">112</span><span id="line-112"> long procId = getSCPProcId(procExec);</span>
<span class="source-line-no">113</span><span id="line-113"> // Now run through the procedure twice crashing the executor on each step...</span>
<span class="source-line-no">114</span><span id="line-114"> MasterProcedureTestingUtility.testRecoveryAndDoubleExecution(procExec, procId);</span>
<span class="source-line-no">115</span><span id="line-115"> } else {</span>
<span class="source-line-no">116</span><span id="line-116"> // kill the RS</span>
<span class="source-line-no">117</span><span id="line-117"> AssignmentTestingUtil.killRs(util, rsToKill);</span>
<span class="source-line-no">118</span><span id="line-118"> long procId = getSCPProcId(procExec);</span>
<span class="source-line-no">119</span><span id="line-119"> ProcedureTestingUtility.waitProcedure(procExec, procId);</span>
<span class="source-line-no">120</span><span id="line-120"> }</span>
<span class="source-line-no">121</span><span id="line-121"> RegionReplicaTestHelper.assertReplicaDistributed(util, t);</span>
<span class="source-line-no">122</span><span id="line-122"> assertEquals(count, HBaseTestingUtil.countRows(t));</span>
<span class="source-line-no">123</span><span id="line-123"> assertEquals(checksum, util.checksumRows(t));</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"> protected long getSCPProcId(ProcedureExecutor&lt;?&gt; procExec) {</span>
<span class="source-line-no">128</span><span id="line-128"> util.waitFor(30000, () -&gt; !procExec.getProcedures().isEmpty());</span>
<span class="source-line-no">129</span><span id="line-129"> return procExec.getActiveProcIds().stream().mapToLong(Long::longValue).min().getAsLong();</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"> protected Table createTable(final TableName tableName) throws IOException {</span>
<span class="source-line-no">133</span><span id="line-133"> final Table t = this.util.createTable(tableName, HBaseTestingUtil.COLUMNS,</span>
<span class="source-line-no">134</span><span id="line-134"> HBaseTestingUtil.KEYS_FOR_HBA_CREATE_TABLE, getRegionReplication());</span>
<span class="source-line-no">135</span><span id="line-135"> return t;</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"> protected int getRegionReplication() {</span>
<span class="source-line-no">139</span><span id="line-139"> return 1;</span>
<span class="source-line-no">140</span><span id="line-140"> }</span>
<span class="source-line-no">141</span><span id="line-141">}</span>
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