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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/05/25 14:48:06 UTC
[02/29] hbase-site git commit: Published site at
477f9fdb32873387231c5fbbff130ba8bf7b5d68.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/621479e1/testdevapidocs/src-html/org/apache/hadoop/hbase/master/procedure/TestTruncateTableProcedure.TruncateTableProcedureOnHDFSFailure.html
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diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/master/procedure/TestTruncateTableProcedure.TruncateTableProcedureOnHDFSFailure.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/master/procedure/TestTruncateTableProcedure.TruncateTableProcedureOnHDFSFailure.html
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@@ -0,0 +1,382 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<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.procedure;<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.assertEquals;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static org.junit.Assert.assertTrue;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static org.junit.Assert.fail;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.fs.FileSystem;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.fs.Path;<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.HBaseIOException;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.TableName;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.TableNotDisabledException;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.master.MasterFileSystem;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.junit.ClassRule;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.junit.Rule;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.junit.Test;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.junit.experimental.categories.Category;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.junit.rules.TestName;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.slf4j.Logger;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.slf4j.LoggerFactory;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.49"></a>
+<span class="sourceLineNo">050</span><a name="line.50"></a>
+<span class="sourceLineNo">051</span>@Category({MasterTests.class, MediumTests.class})<a name="line.51"></a>
+<span class="sourceLineNo">052</span>public class TestTruncateTableProcedure extends TestTableDDLProcedureBase {<a name="line.52"></a>
+<span class="sourceLineNo">053</span><a name="line.53"></a>
+<span class="sourceLineNo">054</span> @ClassRule<a name="line.54"></a>
+<span class="sourceLineNo">055</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.55"></a>
+<span class="sourceLineNo">056</span> HBaseClassTestRule.forClass(TestTruncateTableProcedure.class);<a name="line.56"></a>
+<span class="sourceLineNo">057</span><a name="line.57"></a>
+<span class="sourceLineNo">058</span> private static final Logger LOG = LoggerFactory.getLogger(TestTruncateTableProcedure.class);<a name="line.58"></a>
+<span class="sourceLineNo">059</span><a name="line.59"></a>
+<span class="sourceLineNo">060</span> @Rule<a name="line.60"></a>
+<span class="sourceLineNo">061</span> public TestName name = new TestName();<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span> @Test<a name="line.63"></a>
+<span class="sourceLineNo">064</span> public void testTruncateNotExistentTable() throws Exception {<a name="line.64"></a>
+<span class="sourceLineNo">065</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.65"></a>
+<span class="sourceLineNo">066</span><a name="line.66"></a>
+<span class="sourceLineNo">067</span> final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();<a name="line.67"></a>
+<span class="sourceLineNo">068</span> // HBASE-20178 has us fail-fast, in the constructor, so add try/catch for this case.<a name="line.68"></a>
+<span class="sourceLineNo">069</span> // Keep old way of looking at procedure too.<a name="line.69"></a>
+<span class="sourceLineNo">070</span> Throwable cause = null;<a name="line.70"></a>
+<span class="sourceLineNo">071</span> try {<a name="line.71"></a>
+<span class="sourceLineNo">072</span> long procId = ProcedureTestingUtility.submitAndWait(procExec,<a name="line.72"></a>
+<span class="sourceLineNo">073</span> new TruncateTableProcedure(procExec.getEnvironment(), tableName, true));<a name="line.73"></a>
+<span class="sourceLineNo">074</span><a name="line.74"></a>
+<span class="sourceLineNo">075</span> // Second delete should fail with TableNotFound<a name="line.75"></a>
+<span class="sourceLineNo">076</span> Procedure<?> result = procExec.getResult(procId);<a name="line.76"></a>
+<span class="sourceLineNo">077</span> assertTrue(result.isFailed());<a name="line.77"></a>
+<span class="sourceLineNo">078</span> cause = ProcedureTestingUtility.getExceptionCause(result);<a name="line.78"></a>
+<span class="sourceLineNo">079</span> } catch (Throwable t) {<a name="line.79"></a>
+<span class="sourceLineNo">080</span> cause = t;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> }<a name="line.81"></a>
+<span class="sourceLineNo">082</span> LOG.debug("Truncate failed with exception: " + cause);<a name="line.82"></a>
+<span class="sourceLineNo">083</span> assertTrue(cause instanceof TableNotFoundException);<a name="line.83"></a>
+<span class="sourceLineNo">084</span> }<a name="line.84"></a>
+<span class="sourceLineNo">085</span><a name="line.85"></a>
+<span class="sourceLineNo">086</span> @Test<a name="line.86"></a>
+<span class="sourceLineNo">087</span> public void testTruncateNotDisabledTable() throws Exception {<a name="line.87"></a>
+<span class="sourceLineNo">088</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span> final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();<a name="line.90"></a>
+<span class="sourceLineNo">091</span> MasterProcedureTestingUtility.createTable(procExec, tableName, null, "f");<a name="line.91"></a>
+<span class="sourceLineNo">092</span><a name="line.92"></a>
+<span class="sourceLineNo">093</span> // HBASE-20178 has us fail-fast, in the constructor, so add try/catch for this case.<a name="line.93"></a>
+<span class="sourceLineNo">094</span> // Keep old way of looking at procedure too.<a name="line.94"></a>
+<span class="sourceLineNo">095</span> Throwable cause = null;<a name="line.95"></a>
+<span class="sourceLineNo">096</span> try {<a name="line.96"></a>
+<span class="sourceLineNo">097</span> long procId = ProcedureTestingUtility.submitAndWait(procExec,<a name="line.97"></a>
+<span class="sourceLineNo">098</span> new TruncateTableProcedure(procExec.getEnvironment(), tableName, false));<a name="line.98"></a>
+<span class="sourceLineNo">099</span><a name="line.99"></a>
+<span class="sourceLineNo">100</span> // Second delete should fail with TableNotDisabled<a name="line.100"></a>
+<span class="sourceLineNo">101</span> Procedure<?> result = procExec.getResult(procId);<a name="line.101"></a>
+<span class="sourceLineNo">102</span> assertTrue(result.isFailed());<a name="line.102"></a>
+<span class="sourceLineNo">103</span> cause = ProcedureTestingUtility.getExceptionCause(result);<a name="line.103"></a>
+<span class="sourceLineNo">104</span> } catch (Throwable t) {<a name="line.104"></a>
+<span class="sourceLineNo">105</span> cause = t;<a name="line.105"></a>
+<span class="sourceLineNo">106</span> }<a name="line.106"></a>
+<span class="sourceLineNo">107</span> LOG.debug("Truncate failed with exception: " + cause);<a name="line.107"></a>
+<span class="sourceLineNo">108</span> assertTrue(cause instanceof TableNotDisabledException);<a name="line.108"></a>
+<span class="sourceLineNo">109</span> }<a name="line.109"></a>
+<span class="sourceLineNo">110</span><a name="line.110"></a>
+<span class="sourceLineNo">111</span> @Test<a name="line.111"></a>
+<span class="sourceLineNo">112</span> public void testSimpleTruncatePreserveSplits() throws Exception {<a name="line.112"></a>
+<span class="sourceLineNo">113</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.113"></a>
+<span class="sourceLineNo">114</span> testSimpleTruncate(tableName, true);<a name="line.114"></a>
+<span class="sourceLineNo">115</span> }<a name="line.115"></a>
+<span class="sourceLineNo">116</span><a name="line.116"></a>
+<span class="sourceLineNo">117</span> @Test<a name="line.117"></a>
+<span class="sourceLineNo">118</span> public void testSimpleTruncateNoPreserveSplits() throws Exception {<a name="line.118"></a>
+<span class="sourceLineNo">119</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.119"></a>
+<span class="sourceLineNo">120</span> testSimpleTruncate(tableName, false);<a name="line.120"></a>
+<span class="sourceLineNo">121</span> }<a name="line.121"></a>
+<span class="sourceLineNo">122</span><a name="line.122"></a>
+<span class="sourceLineNo">123</span> private void testSimpleTruncate(final TableName tableName, final boolean preserveSplits)<a name="line.123"></a>
+<span class="sourceLineNo">124</span> throws Exception {<a name="line.124"></a>
+<span class="sourceLineNo">125</span> final String[] families = new String[] { "f1", "f2" };<a name="line.125"></a>
+<span class="sourceLineNo">126</span> final byte[][] splitKeys = new byte[][] {<a name="line.126"></a>
+<span class="sourceLineNo">127</span> Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")<a name="line.127"></a>
+<span class="sourceLineNo">128</span> };<a name="line.128"></a>
+<span class="sourceLineNo">129</span><a name="line.129"></a>
+<span class="sourceLineNo">130</span> RegionInfo[] regions = MasterProcedureTestingUtility.createTable(<a name="line.130"></a>
+<span class="sourceLineNo">131</span> getMasterProcedureExecutor(), tableName, splitKeys, families);<a name="line.131"></a>
+<span class="sourceLineNo">132</span> // load and verify that there are rows in the table<a name="line.132"></a>
+<span class="sourceLineNo">133</span> MasterProcedureTestingUtility.loadData(<a name="line.133"></a>
+<span class="sourceLineNo">134</span> UTIL.getConnection(), tableName, 100, splitKeys, families);<a name="line.134"></a>
+<span class="sourceLineNo">135</span> assertEquals(100, UTIL.countRows(tableName));<a name="line.135"></a>
+<span class="sourceLineNo">136</span> // disable the table<a name="line.136"></a>
+<span class="sourceLineNo">137</span> UTIL.getAdmin().disableTable(tableName);<a name="line.137"></a>
+<span class="sourceLineNo">138</span><a name="line.138"></a>
+<span class="sourceLineNo">139</span> // truncate the table<a name="line.139"></a>
+<span class="sourceLineNo">140</span> final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();<a name="line.140"></a>
+<span class="sourceLineNo">141</span> long procId = ProcedureTestingUtility.submitAndWait(procExec,<a name="line.141"></a>
+<span class="sourceLineNo">142</span> new TruncateTableProcedure(procExec.getEnvironment(), tableName, preserveSplits));<a name="line.142"></a>
+<span class="sourceLineNo">143</span> ProcedureTestingUtility.assertProcNotFailed(procExec, procId);<a name="line.143"></a>
+<span class="sourceLineNo">144</span><a name="line.144"></a>
+<span class="sourceLineNo">145</span> // If truncate procedure completed successfully, it means all regions were assigned correctly<a name="line.145"></a>
+<span class="sourceLineNo">146</span> // and table is enabled now.<a name="line.146"></a>
+<span class="sourceLineNo">147</span> UTIL.waitUntilAllRegionsAssigned(tableName);<a name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span> // validate the table regions and layout<a name="line.149"></a>
+<span class="sourceLineNo">150</span> regions = UTIL.getAdmin().getTableRegions(tableName).toArray(new RegionInfo[0]);<a name="line.150"></a>
+<span class="sourceLineNo">151</span> if (preserveSplits) {<a name="line.151"></a>
+<span class="sourceLineNo">152</span> assertEquals(1 + splitKeys.length, regions.length);<a name="line.152"></a>
+<span class="sourceLineNo">153</span> } else {<a name="line.153"></a>
+<span class="sourceLineNo">154</span> assertEquals(1, regions.length);<a name="line.154"></a>
+<span class="sourceLineNo">155</span> }<a name="line.155"></a>
+<span class="sourceLineNo">156</span> MasterProcedureTestingUtility.validateTableCreation(<a name="line.156"></a>
+<span class="sourceLineNo">157</span> UTIL.getHBaseCluster().getMaster(), tableName, regions, families);<a name="line.157"></a>
+<span class="sourceLineNo">158</span><a name="line.158"></a>
+<span class="sourceLineNo">159</span> // verify that there are no rows in the table<a name="line.159"></a>
+<span class="sourceLineNo">160</span> assertEquals(0, UTIL.countRows(tableName));<a name="line.160"></a>
+<span class="sourceLineNo">161</span><a name="line.161"></a>
+<span class="sourceLineNo">162</span> // verify that the table is read/writable<a name="line.162"></a>
+<span class="sourceLineNo">163</span> MasterProcedureTestingUtility.loadData(<a name="line.163"></a>
+<span class="sourceLineNo">164</span> UTIL.getConnection(), tableName, 50, splitKeys, families);<a name="line.164"></a>
+<span class="sourceLineNo">165</span> assertEquals(50, UTIL.countRows(tableName));<a name="line.165"></a>
+<span class="sourceLineNo">166</span> }<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span> @Test<a name="line.168"></a>
+<span class="sourceLineNo">169</span> public void testRecoveryAndDoubleExecutionPreserveSplits() throws Exception {<a name="line.169"></a>
+<span class="sourceLineNo">170</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.170"></a>
+<span class="sourceLineNo">171</span> testRecoveryAndDoubleExecution(tableName, true);<a name="line.171"></a>
+<span class="sourceLineNo">172</span> }<a name="line.172"></a>
+<span class="sourceLineNo">173</span><a name="line.173"></a>
+<span class="sourceLineNo">174</span> @Test<a name="line.174"></a>
+<span class="sourceLineNo">175</span> public void testRecoveryAndDoubleExecutionNoPreserveSplits() throws Exception {<a name="line.175"></a>
+<span class="sourceLineNo">176</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.176"></a>
+<span class="sourceLineNo">177</span> testRecoveryAndDoubleExecution(tableName, false);<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>
+<span class="sourceLineNo">180</span> private void testRecoveryAndDoubleExecution(final TableName tableName,<a name="line.180"></a>
+<span class="sourceLineNo">181</span> final boolean preserveSplits) throws Exception {<a name="line.181"></a>
+<span class="sourceLineNo">182</span> final String[] families = new String[] { "f1", "f2" };<a name="line.182"></a>
+<span class="sourceLineNo">183</span><a name="line.183"></a>
+<span class="sourceLineNo">184</span> // create the table<a name="line.184"></a>
+<span class="sourceLineNo">185</span> final byte[][] splitKeys = new byte[][] {<a name="line.185"></a>
+<span class="sourceLineNo">186</span> Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")<a name="line.186"></a>
+<span class="sourceLineNo">187</span> };<a name="line.187"></a>
+<span class="sourceLineNo">188</span> RegionInfo[] regions = MasterProcedureTestingUtility.createTable(<a name="line.188"></a>
+<span class="sourceLineNo">189</span> getMasterProcedureExecutor(), tableName, splitKeys, families);<a name="line.189"></a>
+<span class="sourceLineNo">190</span> // load and verify that there are rows in the table<a name="line.190"></a>
+<span class="sourceLineNo">191</span> MasterProcedureTestingUtility.loadData(<a name="line.191"></a>
+<span class="sourceLineNo">192</span> UTIL.getConnection(), tableName, 100, splitKeys, families);<a name="line.192"></a>
+<span class="sourceLineNo">193</span> assertEquals(100, UTIL.countRows(tableName));<a name="line.193"></a>
+<span class="sourceLineNo">194</span> // disable the table<a name="line.194"></a>
+<span class="sourceLineNo">195</span> UTIL.getAdmin().disableTable(tableName);<a name="line.195"></a>
+<span class="sourceLineNo">196</span><a name="line.196"></a>
+<span class="sourceLineNo">197</span> final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();<a name="line.197"></a>
+<span class="sourceLineNo">198</span> ProcedureTestingUtility.waitNoProcedureRunning(procExec);<a name="line.198"></a>
+<span class="sourceLineNo">199</span> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, true);<a name="line.199"></a>
+<span class="sourceLineNo">200</span><a name="line.200"></a>
+<span class="sourceLineNo">201</span> // Start the Truncate procedure && kill the executor<a name="line.201"></a>
+<span class="sourceLineNo">202</span> long procId = procExec.submitProcedure(<a name="line.202"></a>
+<span class="sourceLineNo">203</span> new TruncateTableProcedure(procExec.getEnvironment(), tableName, preserveSplits));<a name="line.203"></a>
+<span class="sourceLineNo">204</span><a name="line.204"></a>
+<span class="sourceLineNo">205</span> // Restart the executor and execute the step twice<a name="line.205"></a>
+<span class="sourceLineNo">206</span> MasterProcedureTestingUtility.testRecoveryAndDoubleExecution(procExec, procId);<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span> ProcedureTestingUtility.setKillAndToggleBeforeStoreUpdate(procExec, false);<a name="line.208"></a>
+<span class="sourceLineNo">209</span> UTIL.waitUntilAllRegionsAssigned(tableName);<a name="line.209"></a>
+<span class="sourceLineNo">210</span><a name="line.210"></a>
+<span class="sourceLineNo">211</span> // validate the table regions and layout<a name="line.211"></a>
+<span class="sourceLineNo">212</span> regions = UTIL.getAdmin().getTableRegions(tableName).toArray(new RegionInfo[0]);<a name="line.212"></a>
+<span class="sourceLineNo">213</span> if (preserveSplits) {<a name="line.213"></a>
+<span class="sourceLineNo">214</span> assertEquals(1 + splitKeys.length, regions.length);<a name="line.214"></a>
+<span class="sourceLineNo">215</span> } else {<a name="line.215"></a>
+<span class="sourceLineNo">216</span> assertEquals(1, regions.length);<a name="line.216"></a>
+<span class="sourceLineNo">217</span> }<a name="line.217"></a>
+<span class="sourceLineNo">218</span> MasterProcedureTestingUtility.validateTableCreation(<a name="line.218"></a>
+<span class="sourceLineNo">219</span> UTIL.getHBaseCluster().getMaster(), tableName, regions, families);<a name="line.219"></a>
+<span class="sourceLineNo">220</span><a name="line.220"></a>
+<span class="sourceLineNo">221</span> // verify that there are no rows in the table<a name="line.221"></a>
+<span class="sourceLineNo">222</span> assertEquals(0, UTIL.countRows(tableName));<a name="line.222"></a>
+<span class="sourceLineNo">223</span><a name="line.223"></a>
+<span class="sourceLineNo">224</span> // verify that the table is read/writable<a name="line.224"></a>
+<span class="sourceLineNo">225</span> MasterProcedureTestingUtility.loadData(<a name="line.225"></a>
+<span class="sourceLineNo">226</span> UTIL.getConnection(), tableName, 50, splitKeys, families);<a name="line.226"></a>
+<span class="sourceLineNo">227</span> assertEquals(50, UTIL.countRows(tableName));<a name="line.227"></a>
+<span class="sourceLineNo">228</span> }<a name="line.228"></a>
+<span class="sourceLineNo">229</span><a name="line.229"></a>
+<span class="sourceLineNo">230</span> @Test<a name="line.230"></a>
+<span class="sourceLineNo">231</span> public void testOnHDFSFailurePreserveSplits() throws Exception {<a name="line.231"></a>
+<span class="sourceLineNo">232</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.232"></a>
+<span class="sourceLineNo">233</span> testOnHDFSFailure(tableName, true);<a name="line.233"></a>
+<span class="sourceLineNo">234</span> }<a name="line.234"></a>
+<span class="sourceLineNo">235</span><a name="line.235"></a>
+<span class="sourceLineNo">236</span> @Test<a name="line.236"></a>
+<span class="sourceLineNo">237</span> public void testOnHDFSFailureNoPreserveSplits() throws Exception {<a name="line.237"></a>
+<span class="sourceLineNo">238</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.238"></a>
+<span class="sourceLineNo">239</span> testOnHDFSFailure(tableName, false);<a name="line.239"></a>
+<span class="sourceLineNo">240</span> }<a name="line.240"></a>
+<span class="sourceLineNo">241</span><a name="line.241"></a>
+<span class="sourceLineNo">242</span> public static class TruncateTableProcedureOnHDFSFailure extends TruncateTableProcedure {<a name="line.242"></a>
+<span class="sourceLineNo">243</span><a name="line.243"></a>
+<span class="sourceLineNo">244</span> private boolean failOnce = false;<a name="line.244"></a>
+<span class="sourceLineNo">245</span><a name="line.245"></a>
+<span class="sourceLineNo">246</span> public TruncateTableProcedureOnHDFSFailure() {<a name="line.246"></a>
+<span class="sourceLineNo">247</span> // Required by the Procedure framework to create the procedure on replay<a name="line.247"></a>
+<span class="sourceLineNo">248</span> super();<a name="line.248"></a>
+<span class="sourceLineNo">249</span> }<a name="line.249"></a>
+<span class="sourceLineNo">250</span><a name="line.250"></a>
+<span class="sourceLineNo">251</span> public TruncateTableProcedureOnHDFSFailure(final MasterProcedureEnv env, TableName tableName,<a name="line.251"></a>
+<span class="sourceLineNo">252</span> boolean preserveSplits)<a name="line.252"></a>
+<span class="sourceLineNo">253</span> throws HBaseIOException {<a name="line.253"></a>
+<span class="sourceLineNo">254</span> super(env, tableName, preserveSplits);<a name="line.254"></a>
+<span class="sourceLineNo">255</span> }<a name="line.255"></a>
+<span class="sourceLineNo">256</span><a name="line.256"></a>
+<span class="sourceLineNo">257</span> @Override<a name="line.257"></a>
+<span class="sourceLineNo">258</span> protected Flow executeFromState(MasterProcedureEnv env,<a name="line.258"></a>
+<span class="sourceLineNo">259</span> MasterProcedureProtos.TruncateTableState state) throws InterruptedException {<a name="line.259"></a>
+<span class="sourceLineNo">260</span><a name="line.260"></a>
+<span class="sourceLineNo">261</span> if (!failOnce &&<a name="line.261"></a>
+<span class="sourceLineNo">262</span> state == MasterProcedureProtos.TruncateTableState.TRUNCATE_TABLE_CREATE_FS_LAYOUT) {<a name="line.262"></a>
+<span class="sourceLineNo">263</span> try {<a name="line.263"></a>
+<span class="sourceLineNo">264</span> // To emulate an HDFS failure, create only the first region directory<a name="line.264"></a>
+<span class="sourceLineNo">265</span> RegionInfo regionInfo = getFirstRegionInfo();<a name="line.265"></a>
+<span class="sourceLineNo">266</span> Configuration conf = env.getMasterConfiguration();<a name="line.266"></a>
+<span class="sourceLineNo">267</span> MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();<a name="line.267"></a>
+<span class="sourceLineNo">268</span> Path tempdir = mfs.getTempDir();<a name="line.268"></a>
+<span class="sourceLineNo">269</span> Path tableDir = FSUtils.getTableDir(tempdir, regionInfo.getTable());<a name="line.269"></a>
+<span class="sourceLineNo">270</span> Path regionDir = FSUtils.getRegionDir(tableDir, regionInfo);<a name="line.270"></a>
+<span class="sourceLineNo">271</span> FileSystem fs = FileSystem.get(conf);<a name="line.271"></a>
+<span class="sourceLineNo">272</span> fs.mkdirs(regionDir);<a name="line.272"></a>
+<span class="sourceLineNo">273</span><a name="line.273"></a>
+<span class="sourceLineNo">274</span> failOnce = true;<a name="line.274"></a>
+<span class="sourceLineNo">275</span> return Flow.HAS_MORE_STATE;<a name="line.275"></a>
+<span class="sourceLineNo">276</span> } catch (IOException e) {<a name="line.276"></a>
+<span class="sourceLineNo">277</span> fail("failed to create a region directory: " + e);<a name="line.277"></a>
+<span class="sourceLineNo">278</span> }<a name="line.278"></a>
+<span class="sourceLineNo">279</span> }<a name="line.279"></a>
+<span class="sourceLineNo">280</span><a name="line.280"></a>
+<span class="sourceLineNo">281</span> return super.executeFromState(env, state);<a name="line.281"></a>
+<span class="sourceLineNo">282</span> }<a name="line.282"></a>
+<span class="sourceLineNo">283</span> }<a name="line.283"></a>
+<span class="sourceLineNo">284</span><a name="line.284"></a>
+<span class="sourceLineNo">285</span> private void testOnHDFSFailure(TableName tableName, boolean preserveSplits) throws Exception {<a name="line.285"></a>
+<span class="sourceLineNo">286</span> String[] families = new String[] { "f1", "f2" };<a name="line.286"></a>
+<span class="sourceLineNo">287</span> byte[][] splitKeys = new byte[][] {<a name="line.287"></a>
+<span class="sourceLineNo">288</span> Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")<a name="line.288"></a>
+<span class="sourceLineNo">289</span> };<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
+<span class="sourceLineNo">291</span> // create a table<a name="line.291"></a>
+<span class="sourceLineNo">292</span> MasterProcedureTestingUtility.createTable(<a name="line.292"></a>
+<span class="sourceLineNo">293</span> getMasterProcedureExecutor(), tableName, splitKeys, families);<a name="line.293"></a>
+<span class="sourceLineNo">294</span><a name="line.294"></a>
+<span class="sourceLineNo">295</span> // load and verify that there are rows in the table<a name="line.295"></a>
+<span class="sourceLineNo">296</span> MasterProcedureTestingUtility.loadData(<a name="line.296"></a>
+<span class="sourceLineNo">297</span> UTIL.getConnection(), tableName, 100, splitKeys, families);<a name="line.297"></a>
+<span class="sourceLineNo">298</span> assertEquals(100, UTIL.countRows(tableName));<a name="line.298"></a>
+<span class="sourceLineNo">299</span><a name="line.299"></a>
+<span class="sourceLineNo">300</span> // disable the table<a name="line.300"></a>
+<span class="sourceLineNo">301</span> UTIL.getAdmin().disableTable(tableName);<a name="line.301"></a>
+<span class="sourceLineNo">302</span><a name="line.302"></a>
+<span class="sourceLineNo">303</span> // truncate the table<a name="line.303"></a>
+<span class="sourceLineNo">304</span> final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();<a name="line.304"></a>
+<span class="sourceLineNo">305</span> long procId = ProcedureTestingUtility.submitAndWait(procExec,<a name="line.305"></a>
+<span class="sourceLineNo">306</span> new TruncateTableProcedureOnHDFSFailure(procExec.getEnvironment(), tableName,<a name="line.306"></a>
+<span class="sourceLineNo">307</span> preserveSplits));<a name="line.307"></a>
+<span class="sourceLineNo">308</span> ProcedureTestingUtility.assertProcNotFailed(procExec, procId);<a name="line.308"></a>
+<span class="sourceLineNo">309</span> }<a name="line.309"></a>
+<span class="sourceLineNo">310</span>}<a name="line.310"></a>
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+</pre>
+</div>
+</body>
+</html>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/621479e1/testdevapidocs/src-html/org/apache/hadoop/hbase/master/procedure/TestTruncateTableProcedure.html
----------------------------------------------------------------------
diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/master/procedure/TestTruncateTableProcedure.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/master/procedure/TestTruncateTableProcedure.html
index 46c03d1..7f7759f 100644
--- a/testdevapidocs/src-html/org/apache/hadoop/hbase/master/procedure/TestTruncateTableProcedure.html
+++ b/testdevapidocs/src-html/org/apache/hadoop/hbase/master/procedure/TestTruncateTableProcedure.html
@@ -27,205 +27,295 @@
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import static org.junit.Assert.assertEquals;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import static org.junit.Assert.assertTrue;<a name="line.21"></a>
-<span class="sourceLineNo">022</span><a name="line.22"></a>
-<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.TableName;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.TableNotDisabledException;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.junit.ClassRule;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.junit.Rule;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.junit.Test;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.junit.experimental.categories.Category;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.junit.rules.TestName;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.slf4j.Logger;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.slf4j.LoggerFactory;<a name="line.40"></a>
-<span class="sourceLineNo">041</span><a name="line.41"></a>
-<span class="sourceLineNo">042</span>@Category({MasterTests.class, MediumTests.class})<a name="line.42"></a>
-<span class="sourceLineNo">043</span>public class TestTruncateTableProcedure extends TestTableDDLProcedureBase {<a name="line.43"></a>
-<span class="sourceLineNo">044</span><a name="line.44"></a>
-<span class="sourceLineNo">045</span> @ClassRule<a name="line.45"></a>
-<span class="sourceLineNo">046</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.46"></a>
-<span class="sourceLineNo">047</span> HBaseClassTestRule.forClass(TestTruncateTableProcedure.class);<a name="line.47"></a>
-<span class="sourceLineNo">048</span><a name="line.48"></a>
-<span class="sourceLineNo">049</span> private static final Logger LOG = LoggerFactory.getLogger(TestTruncateTableProcedure.class);<a name="line.49"></a>
+<span class="sourceLineNo">022</span>import static org.junit.Assert.fail;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.fs.FileSystem;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.fs.Path;<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.HBaseIOException;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.TableName;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.TableNotDisabledException;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.master.MasterFileSystem;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.procedure2.ProcedureTestingUtility;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.junit.ClassRule;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.junit.Rule;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.junit.Test;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.junit.experimental.categories.Category;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.junit.rules.TestName;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.slf4j.Logger;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.slf4j.LoggerFactory;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
-<span class="sourceLineNo">051</span> @Rule<a name="line.51"></a>
-<span class="sourceLineNo">052</span> public TestName name = new TestName();<a name="line.52"></a>
+<span class="sourceLineNo">051</span>@Category({MasterTests.class, MediumTests.class})<a name="line.51"></a>
+<span class="sourceLineNo">052</span>public class TestTruncateTableProcedure extends TestTableDDLProcedureBase {<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
-<span class="sourceLineNo">054</span> @Test<a name="line.54"></a>
-<span class="sourceLineNo">055</span> public void testTruncateNotExistentTable() throws Exception {<a name="line.55"></a>
-<span class="sourceLineNo">056</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.56"></a>
+<span class="sourceLineNo">054</span> @ClassRule<a name="line.54"></a>
+<span class="sourceLineNo">055</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.55"></a>
+<span class="sourceLineNo">056</span> HBaseClassTestRule.forClass(TestTruncateTableProcedure.class);<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
-<span class="sourceLineNo">058</span> final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();<a name="line.58"></a>
-<span class="sourceLineNo">059</span> // HBASE-20178 has us fail-fast, in the constructor, so add try/catch for this case.<a name="line.59"></a>
-<span class="sourceLineNo">060</span> // Keep old way of looking at procedure too.<a name="line.60"></a>
-<span class="sourceLineNo">061</span> Throwable cause = null;<a name="line.61"></a>
-<span class="sourceLineNo">062</span> try {<a name="line.62"></a>
-<span class="sourceLineNo">063</span> long procId = ProcedureTestingUtility.submitAndWait(procExec,<a name="line.63"></a>
-<span class="sourceLineNo">064</span> new TruncateTableProcedure(procExec.getEnvironment(), tableName, true));<a name="line.64"></a>
-<span class="sourceLineNo">065</span><a name="line.65"></a>
-<span class="sourceLineNo">066</span> // Second delete should fail with TableNotFound<a name="line.66"></a>
-<span class="sourceLineNo">067</span> Procedure<?> result = procExec.getResult(procId);<a name="line.67"></a>
-<span class="sourceLineNo">068</span> assertTrue(result.isFailed());<a name="line.68"></a>
-<span class="sourceLineNo">069</span> cause = ProcedureTestingUtility.getExceptionCause(result);<a name="line.69"></a>
-<span class="sourceLineNo">070</span> } catch (Throwable t) {<a name="line.70"></a>
-<span class="sourceLineNo">071</span> cause = t;<a name="line.71"></a>
-<span class="sourceLineNo">072</span> }<a name="line.72"></a>
-<span class="sourceLineNo">073</span> LOG.debug("Truncate failed with exception: " + cause);<a name="line.73"></a>
-<span class="sourceLineNo">074</span> assertTrue(cause instanceof TableNotFoundException);<a name="line.74"></a>
-<span class="sourceLineNo">075</span> }<a name="line.75"></a>
-<span class="sourceLineNo">076</span><a name="line.76"></a>
-<span class="sourceLineNo">077</span> @Test<a name="line.77"></a>
-<span class="sourceLineNo">078</span> public void testTruncateNotDisabledTable() throws Exception {<a name="line.78"></a>
-<span class="sourceLineNo">079</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.79"></a>
-<span class="sourceLineNo">080</span><a name="line.80"></a>
-<span class="sourceLineNo">081</span> final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();<a name="line.81"></a>
-<span class="sourceLineNo">082</span> MasterProcedureTestingUtility.createTable(procExec, tableName, null, "f");<a name="line.82"></a>
-<span class="sourceLineNo">083</span><a name="line.83"></a>
-<span class="sourceLineNo">084</span> // HBASE-20178 has us fail-fast, in the constructor, so add try/catch for this case.<a name="line.84"></a>
-<span class="sourceLineNo">085</span> // Keep old way of looking at procedure too.<a name="line.85"></a>
-<span class="sourceLineNo">086</span> Throwable cause = null;<a name="line.86"></a>
-<span class="sourceLineNo">087</span> try {<a name="line.87"></a>
-<span class="sourceLineNo">088</span> long procId = ProcedureTestingUtility.submitAndWait(procExec,<a name="line.88"></a>
-<span class="sourceLineNo">089</span> new TruncateTableProcedure(procExec.getEnvironment(), tableName, false));<a name="line.89"></a>
-<span class="sourceLineNo">090</span><a name="line.90"></a>
-<span class="sourceLineNo">091</span> // Second delete should fail with TableNotDisabled<a name="line.91"></a>
-<span class="sourceLineNo">092</span> Procedure<?> result = procExec.getResult(procId);<a name="line.92"></a>
-<span class="sourceLineNo">093</span> assertTrue(result.isFailed());<a name="line.93"></a>
-<span class="sourceLineNo">094</span> cause = ProcedureTestingUtility.getExceptionCause(result);<a name="line.94"></a>
-<span class="sourceLineNo">095</span> } catch (Throwable t) {<a name="line.95"></a>
-<span class="sourceLineNo">096</span> cause = t;<a name="line.96"></a>
-<span class="sourceLineNo">097</span> }<a name="line.97"></a>
-<span class="sourceLineNo">098</span> LOG.debug("Truncate failed with exception: " + cause);<a name="line.98"></a>
-<span class="sourceLineNo">099</span> assertTrue(cause instanceof TableNotDisabledException);<a name="line.99"></a>
-<span class="sourceLineNo">100</span> }<a name="line.100"></a>
-<span class="sourceLineNo">101</span><a name="line.101"></a>
-<span class="sourceLineNo">102</span> @Test<a name="line.102"></a>
-<span class="sourceLineNo">103</span> public void testSimpleTruncatePreserveSplits() throws Exception {<a name="line.103"></a>
-<span class="sourceLineNo">104</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.104"></a>
-<span class="sourceLineNo">105</span> testSimpleTruncate(tableName, true);<a name="line.105"></a>
-<span class="sourceLineNo">106</span> }<a name="line.106"></a>
-<span class="sourceLineNo">107</span><a name="line.107"></a>
-<span class="sourceLineNo">108</span> @Test<a name="line.108"></a>
-<span class="sourceLineNo">109</span> public void testSimpleTruncateNoPreserveSplits() throws Exception {<a name="line.109"></a>
-<span class="sourceLineNo">110</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.110"></a>
-<span class="sourceLineNo">111</span> testSimpleTruncate(tableName, false);<a name="line.111"></a>
-<span class="sourceLineNo">112</span> }<a name="line.112"></a>
-<span class="sourceLineNo">113</span><a name="line.113"></a>
-<span class="sourceLineNo">114</span> private void testSimpleTruncate(final TableName tableName, final boolean preserveSplits)<a name="line.114"></a>
-<span class="sourceLineNo">115</span> throws Exception {<a name="line.115"></a>
-<span class="sourceLineNo">116</span> final String[] families = new String[] { "f1", "f2" };<a name="line.116"></a>
-<span class="sourceLineNo">117</span> final byte[][] splitKeys = new byte[][] {<a name="line.117"></a>
-<span class="sourceLineNo">118</span> Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")<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> RegionInfo[] regions = MasterProcedureTestingUtility.createTable(<a name="line.121"></a>
-<span class="sourceLineNo">122</span> getMasterProcedureExecutor(), tableName, splitKeys, families);<a name="line.122"></a>
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-<span class="sourceLineNo">124</span> MasterProcedureTestingUtility.loadData(<a name="line.124"></a>
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+<span class="sourceLineNo">203</span> new TruncateTableProcedure(procExec.getEnvironment(), tableName, preserveSplits));<a name="line.203"></a>
+<span class="sourceLineNo">204</span><a name="line.204"></a>
+<span class="sourceLineNo">205</span> // Restart the executor and execute the step twice<a name="line.205"></a>
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+<span class="sourceLineNo">209</span> UTIL.waitUntilAllRegionsAssigned(tableName);<a name="line.209"></a>
+<span class="sourceLineNo">210</span><a name="line.210"></a>
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+<span class="sourceLineNo">213</span> if (preserveSplits) {<a name="line.213"></a>
+<span class="sourceLineNo">214</span> assertEquals(1 + splitKeys.length, regions.length);<a name="line.214"></a>
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+<span class="sourceLineNo">220</span><a name="line.220"></a>
+<span class="sourceLineNo">221</span> // verify that there are no rows in the table<a name="line.221"></a>
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+<span class="sourceLineNo">227</span> assertEquals(50, UTIL.countRows(tableName));<a name="line.227"></a>
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+<span class="sourceLineNo">229</span><a name="line.229"></a>
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+<span class="sourceLineNo">233</span> testOnHDFSFailure(tableName, true);<a name="line.233"></a>
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+<span class="sourceLineNo">236</span> @Test<a name="line.236"></a>
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+<span class="sourceLineNo">238</span> final TableName tableName = TableName.valueOf(name.getMethodName());<a name="line.238"></a>
+<span class="sourceLineNo">239</span> testOnHDFSFailure(tableName, false);<a name="line.239"></a>
+<span class="sourceLineNo">240</span> }<a name="line.240"></a>
+<span class="sourceLineNo">241</span><a name="line.241"></a>
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+<span class="sourceLineNo">248</span> super();<a name="line.248"></a>
+<span class="sourceLineNo">249</span> }<a name="line.249"></a>
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+<span class="sourceLineNo">256</span><a name="line.256"></a>
+<span class="sourceLineNo">257</span> @Override<a name="line.257"></a>
+<span class="sourceLineNo">258</span> protected Flow executeFromState(MasterProcedureEnv env,<a name="line.258"></a>
+<span class="sourceLineNo">259</span> MasterProcedureProtos.TruncateTableState state) throws InterruptedException {<a name="line.259"></a>
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+<span class="sourceLineNo">264</span> // To emulate an HDFS failure, create only the first region directory<a name="line.264"></a>
+<span class="sourceLineNo">265</span> RegionInfo regionInfo = getFirstRegionInfo();<a name="line.265"></a>
+<span class="sourceLineNo">266</span> Configuration conf = env.getMasterConfiguration();<a name="line.266"></a>
+<span class="sourceLineNo">267</span> MasterFileSystem mfs = env.getMasterServices().getMasterFileSystem();<a name="line.267"></a>
+<span class="sourceLineNo">268</span> Path tempdir = mfs.getTempDir();<a name="line.268"></a>
+<span class="sourceLineNo">269</span> Path tableDir = FSUtils.getTableDir(tempdir, regionInfo.getTable());<a name="line.269"></a>
+<span class="sourceLineNo">270</span> Path regionDir = FSUtils.getRegionDir(tableDir, regionInfo);<a name="line.270"></a>
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+<span class="sourceLineNo">275</span> return Flow.HAS_MORE_STATE;<a name="line.275"></a>
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+<span class="sourceLineNo">277</span> fail("failed to create a region directory: " + e);<a name="line.277"></a>
+<span class="sourceLineNo">278</span> }<a name="line.278"></a>
+<span class="sourceLineNo">279</span> }<a name="line.279"></a>
+<span class="sourceLineNo">280</span><a name="line.280"></a>
+<span class="sourceLineNo">281</span> return super.executeFromState(env, state);<a name="line.281"></a>
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+<span class="sourceLineNo">283</span> }<a name="line.283"></a>
+<span class="sourceLineNo">284</span><a name="line.284"></a>
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+<span class="sourceLineNo">286</span> String[] families = new String[] { "f1", "f2" };<a name="line.286"></a>
+<span class="sourceLineNo">287</span> byte[][] splitKeys = new byte[][] {<a name="line.287"></a>
+<span class="sourceLineNo">288</span> Bytes.toBytes("a"), Bytes.toBytes("b"), Bytes.toBytes("c")<a name="line.288"></a>
+<span class="sourceLineNo">289</span> };<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
+<span class="sourceLineNo">291</span> // create a table<a name="line.291"></a>
+<span class="sourceLineNo">292</span> MasterProcedureTestingUtility.createTable(<a name="line.292"></a>
+<span class="sourceLineNo">293</span> getMasterProcedureExecutor(), tableName, splitKeys, families);<a name="line.293"></a>
+<span class="sourceLineNo">294</span><a name="line.294"></a>
+<span class="sourceLineNo">295</span> // load and verify that there are rows in the table<a name="line.295"></a>
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+<span class="sourceLineNo">298</span> assertEquals(100, UTIL.countRows(tableName));<a name="line.298"></a>
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+<span class="sourceLineNo">300</span> // disable the table<a name="line.300"></a>
+<span class="sourceLineNo">301</span> UTIL.getAdmin().disableTable(tableName);<a name="line.301"></a>
+<span class="sourceLineNo">302</span><a name="line.302"></a>
+<span class="sourceLineNo">303</span> // truncate the table<a name="line.303"></a>
+<span class="sourceLineNo">304</span> final ProcedureExecutor<MasterProcedureEnv> procExec = getMasterProcedureExecutor();<a name="line.304"></a>
+<span class="sourceLineNo">305</span> long procId = ProcedureTestingUtility.submitAndWait(procExec,<a name="line.305"></a>
+<span class="sourceLineNo">306</span> new TruncateTableProcedureOnHDFSFailure(procExec.getEnvironment(), tableName,<a name="line.306"></a>
+<span class="sourceLineNo">307</span> preserveSplits));<a name="line.307"></a>
+<span class="sourceLineNo">308</span> ProcedureTestingUtility.assertProcNotFailed(procExec, procId);<a name="line.308"></a>
+<span class="sourceLineNo">309</span> }<a name="line.309"></a>
+<span class="sourceLineNo">310</span>}<a name="line.310"></a>