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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 java.io.IOException;</span>
<span class="source-line-no">021</span><span id="line-21">import java.io.InterruptedIOException;</span>
<span class="source-line-no">022</span><span id="line-22">import java.net.SocketTimeoutException;</span>
<span class="source-line-no">023</span><span id="line-23">import java.util.ArrayList;</span>
<span class="source-line-no">024</span><span id="line-24">import java.util.List;</span>
<span class="source-line-no">025</span><span id="line-25">import java.util.Optional;</span>
<span class="source-line-no">026</span><span id="line-26">import java.util.concurrent.atomic.AtomicInteger;</span>
<span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.conf.Configuration;</span>
<span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.Cell;</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.HBaseConfiguration;</span>
<span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.HBaseTestingUtil;</span>
<span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.TableName;</span>
<span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;</span>
<span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.coprocessor.ObserverContext;</span>
<span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;</span>
<span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;</span>
<span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.coprocessor.RegionObserver;</span>
<span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.testclassification.ClientTests;</span>
<span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.testclassification.LargeTests;</span>
<span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.util.Bytes;</span>
<span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.util.Threads;</span>
<span class="source-line-no">042</span><span id="line-42">import org.junit.AfterClass;</span>
<span class="source-line-no">043</span><span id="line-43">import org.junit.Assert;</span>
<span class="source-line-no">044</span><span id="line-44">import org.junit.BeforeClass;</span>
<span class="source-line-no">045</span><span id="line-45">import org.junit.ClassRule;</span>
<span class="source-line-no">046</span><span id="line-46">import org.junit.Test;</span>
<span class="source-line-no">047</span><span id="line-47">import org.junit.experimental.categories.Category;</span>
<span class="source-line-no">048</span><span id="line-48">import org.slf4j.Logger;</span>
<span class="source-line-no">049</span><span id="line-49">import org.slf4j.LoggerFactory;</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({ LargeTests.class, ClientTests.class })</span>
<span class="source-line-no">052</span><span id="line-52">public class TestClientOperationInterrupt {</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(TestClientOperationInterrupt.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 Logger LOG = LoggerFactory.getLogger(TestClientOperationInterrupt.class);</span>
<span class="source-line-no">059</span><span id="line-59"></span>
<span class="source-line-no">060</span><span id="line-60"> private static HBaseTestingUtil util;</span>
<span class="source-line-no">061</span><span id="line-61"> private static final TableName tableName = TableName.valueOf("test");</span>
<span class="source-line-no">062</span><span id="line-62"> private static final byte[] dummy = Bytes.toBytes("dummy");</span>
<span class="source-line-no">063</span><span id="line-63"> private static final byte[] row1 = Bytes.toBytes("r1");</span>
<span class="source-line-no">064</span><span id="line-64"> private static final byte[] test = Bytes.toBytes("test");</span>
<span class="source-line-no">065</span><span id="line-65"> private static Configuration conf;</span>
<span class="source-line-no">066</span><span id="line-66"></span>
<span class="source-line-no">067</span><span id="line-67"> public static class TestCoprocessor implements RegionCoprocessor, RegionObserver {</span>
<span class="source-line-no">068</span><span id="line-68"> @Override</span>
<span class="source-line-no">069</span><span id="line-69"> public Optional&lt;RegionObserver&gt; getRegionObserver() {</span>
<span class="source-line-no">070</span><span id="line-70"> return Optional.of(this);</span>
<span class="source-line-no">071</span><span id="line-71"> }</span>
<span class="source-line-no">072</span><span id="line-72"></span>
<span class="source-line-no">073</span><span id="line-73"> @Override</span>
<span class="source-line-no">074</span><span id="line-74"> public void preGetOp(final ObserverContext&lt;RegionCoprocessorEnvironment&gt; e, final Get get,</span>
<span class="source-line-no">075</span><span id="line-75"> final List&lt;Cell&gt; results) throws IOException {</span>
<span class="source-line-no">076</span><span id="line-76"> Threads.sleep(2500);</span>
<span class="source-line-no">077</span><span id="line-77"> }</span>
<span class="source-line-no">078</span><span id="line-78"> }</span>
<span class="source-line-no">079</span><span id="line-79"></span>
<span class="source-line-no">080</span><span id="line-80"> @BeforeClass</span>
<span class="source-line-no">081</span><span id="line-81"> public static void setUpBeforeClass() throws Exception {</span>
<span class="source-line-no">082</span><span id="line-82"> conf = HBaseConfiguration.create();</span>
<span class="source-line-no">083</span><span id="line-83"> conf.setStrings(CoprocessorHost.USER_REGION_COPROCESSOR_CONF_KEY,</span>
<span class="source-line-no">084</span><span id="line-84"> TestCoprocessor.class.getName());</span>
<span class="source-line-no">085</span><span id="line-85"> util = new HBaseTestingUtil(conf);</span>
<span class="source-line-no">086</span><span id="line-86"> util.startMiniCluster();</span>
<span class="source-line-no">087</span><span id="line-87"></span>
<span class="source-line-no">088</span><span id="line-88"> Admin admin = util.getAdmin();</span>
<span class="source-line-no">089</span><span id="line-89"> if (admin.tableExists(tableName)) {</span>
<span class="source-line-no">090</span><span id="line-90"> if (admin.isTableEnabled(tableName)) {</span>
<span class="source-line-no">091</span><span id="line-91"> admin.disableTable(tableName);</span>
<span class="source-line-no">092</span><span id="line-92"> }</span>
<span class="source-line-no">093</span><span id="line-93"> admin.deleteTable(tableName);</span>
<span class="source-line-no">094</span><span id="line-94"> }</span>
<span class="source-line-no">095</span><span id="line-95"> Table ht = util.createTable(tableName, new byte[][] { dummy, test });</span>
<span class="source-line-no">096</span><span id="line-96"></span>
<span class="source-line-no">097</span><span id="line-97"> Put p = new Put(row1);</span>
<span class="source-line-no">098</span><span id="line-98"> p.addColumn(dummy, dummy, dummy);</span>
<span class="source-line-no">099</span><span id="line-99"> ht.put(p);</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"> @Test</span>
<span class="source-line-no">103</span><span id="line-103"> public void testInterrupt50Percent() throws IOException, InterruptedException {</span>
<span class="source-line-no">104</span><span id="line-104"> final AtomicInteger noEx = new AtomicInteger(0);</span>
<span class="source-line-no">105</span><span id="line-105"> final AtomicInteger badEx = new AtomicInteger(0);</span>
<span class="source-line-no">106</span><span id="line-106"> final AtomicInteger noInt = new AtomicInteger(0);</span>
<span class="source-line-no">107</span><span id="line-107"> final AtomicInteger done = new AtomicInteger(0);</span>
<span class="source-line-no">108</span><span id="line-108"> List&lt;Thread&gt; threads = new ArrayList&lt;&gt;();</span>
<span class="source-line-no">109</span><span id="line-109"></span>
<span class="source-line-no">110</span><span id="line-110"> final int nbThread = 100;</span>
<span class="source-line-no">111</span><span id="line-111"></span>
<span class="source-line-no">112</span><span id="line-112"> for (int i = 0; i &lt; nbThread; i++) {</span>
<span class="source-line-no">113</span><span id="line-113"> Thread t = new Thread() {</span>
<span class="source-line-no">114</span><span id="line-114"> @Override</span>
<span class="source-line-no">115</span><span id="line-115"> public void run() {</span>
<span class="source-line-no">116</span><span id="line-116"> try {</span>
<span class="source-line-no">117</span><span id="line-117"> Table ht = util.getConnection().getTable(tableName);</span>
<span class="source-line-no">118</span><span id="line-118"> Result r = ht.get(new Get(row1));</span>
<span class="source-line-no">119</span><span id="line-119"> noEx.incrementAndGet();</span>
<span class="source-line-no">120</span><span id="line-120"> } catch (IOException e) {</span>
<span class="source-line-no">121</span><span id="line-121"> LOG.info("exception", e);</span>
<span class="source-line-no">122</span><span id="line-122"> if (!(e instanceof InterruptedIOException) || (e instanceof SocketTimeoutException)) {</span>
<span class="source-line-no">123</span><span id="line-123"> badEx.incrementAndGet();</span>
<span class="source-line-no">124</span><span id="line-124"> } else {</span>
<span class="source-line-no">125</span><span id="line-125"> if (Thread.currentThread().isInterrupted()) {</span>
<span class="source-line-no">126</span><span id="line-126"> noInt.incrementAndGet();</span>
<span class="source-line-no">127</span><span id="line-127"> LOG.info("The thread should NOT be with the 'interrupt' status.");</span>
<span class="source-line-no">128</span><span id="line-128"> }</span>
<span class="source-line-no">129</span><span id="line-129"> }</span>
<span class="source-line-no">130</span><span id="line-130"> } finally {</span>
<span class="source-line-no">131</span><span id="line-131"> done.incrementAndGet();</span>
<span class="source-line-no">132</span><span id="line-132"> }</span>
<span class="source-line-no">133</span><span id="line-133"> }</span>
<span class="source-line-no">134</span><span id="line-134"> };</span>
<span class="source-line-no">135</span><span id="line-135"> t.setName("TestClientOperationInterrupt #" + i);</span>
<span class="source-line-no">136</span><span id="line-136"> threads.add(t);</span>
<span class="source-line-no">137</span><span id="line-137"> t.start();</span>
<span class="source-line-no">138</span><span id="line-138"> }</span>
<span class="source-line-no">139</span><span id="line-139"> int expectedNoExNum = nbThread / 2;</span>
<span class="source-line-no">140</span><span id="line-140"></span>
<span class="source-line-no">141</span><span id="line-141"> for (int i = 0; i &lt; nbThread / 2; i++) {</span>
<span class="source-line-no">142</span><span id="line-142"> if (threads.get(i).getState().equals(Thread.State.TERMINATED)) {</span>
<span class="source-line-no">143</span><span id="line-143"> expectedNoExNum--;</span>
<span class="source-line-no">144</span><span id="line-144"> }</span>
<span class="source-line-no">145</span><span id="line-145"> threads.get(i).interrupt();</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"> boolean stillAlive = true;</span>
<span class="source-line-no">149</span><span id="line-149"> while (stillAlive) {</span>
<span class="source-line-no">150</span><span id="line-150"> stillAlive = false;</span>
<span class="source-line-no">151</span><span id="line-151"> for (Thread t : threads) {</span>
<span class="source-line-no">152</span><span id="line-152"> if (t.isAlive()) {</span>
<span class="source-line-no">153</span><span id="line-153"> stillAlive = true;</span>
<span class="source-line-no">154</span><span id="line-154"> }</span>
<span class="source-line-no">155</span><span id="line-155"> }</span>
<span class="source-line-no">156</span><span id="line-156"> Threads.sleep(10);</span>
<span class="source-line-no">157</span><span id="line-157"> }</span>
<span class="source-line-no">158</span><span id="line-158"></span>
<span class="source-line-no">159</span><span id="line-159"> Assert.assertFalse(Thread.currentThread().isInterrupted());</span>
<span class="source-line-no">160</span><span id="line-160"> Assert.assertTrue(" noEx: " + noEx.get() + ", badEx=" + badEx.get() + ", noInt=" + noInt.get(),</span>
<span class="source-line-no">161</span><span id="line-161"> noEx.get() == expectedNoExNum &amp;&amp; badEx.get() == 0);</span>
<span class="source-line-no">162</span><span id="line-162"></span>
<span class="source-line-no">163</span><span id="line-163"> // The problem here is that we need the server to free its handlers to handle all operations</span>
<span class="source-line-no">164</span><span id="line-164"> while (done.get() != nbThread) {</span>
<span class="source-line-no">165</span><span id="line-165"> Thread.sleep(1);</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"> Table ht = util.getConnection().getTable(tableName);</span>
<span class="source-line-no">169</span><span id="line-169"> Result r = ht.get(new Get(row1));</span>
<span class="source-line-no">170</span><span id="line-170"> Assert.assertFalse(r.isEmpty());</span>
<span class="source-line-no">171</span><span id="line-171"> }</span>
<span class="source-line-no">172</span><span id="line-172"></span>
<span class="source-line-no">173</span><span id="line-173"> @AfterClass</span>
<span class="source-line-no">174</span><span id="line-174"> public static void tearDownAfterClass() throws Exception {</span>
<span class="source-line-no">175</span><span id="line-175"> util.shutdownMiniCluster();</span>
<span class="source-line-no">176</span><span id="line-176"> }</span>
<span class="source-line-no">177</span><span id="line-177">}</span>
</pre>
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