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b/testdevapidocs/src-html/org/apache/hadoop/hbase/client/TestFastFail.CallQueueTooBigPffeInterceptor.html @@ -0,0 +1,442 @@ +<!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.client;<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><a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.util.Random;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import java.util.concurrent.Callable;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import java.util.concurrent.CountDownLatch;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import java.util.concurrent.ExecutorService;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import java.util.concurrent.Executors;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import java.util.concurrent.Future;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.33"></a> +<span class="sourceLineNo">034</span><a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.commons.logging.Log;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.commons.logging.LogFactory;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.conf.Configuration;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HColumnDescriptor;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.HConstants;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.ServerName;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.TableName;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.exceptions.PreemptiveFastFailException;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.ipc.SimpleRpcScheduler;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.testclassification.ClientTests;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.util.test.LoadTestKVGenerator;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.junit.After;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.junit.AfterClass;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.junit.Before;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.junit.BeforeClass;<a name="line.54"></a> +<span class="sourceLineNo">055</span>import org.junit.Test;<a name="line.55"></a> +<span class="sourceLineNo">056</span>import org.junit.Ignore;<a name="line.56"></a> +<span class="sourceLineNo">057</span>import org.junit.experimental.categories.Category;<a name="line.57"></a> +<span class="sourceLineNo">058</span><a name="line.58"></a> +<span class="sourceLineNo">059</span>@Category({MediumTests.class, ClientTests.class})<a name="line.59"></a> +<span class="sourceLineNo">060</span>public class TestFastFail {<a name="line.60"></a> +<span class="sourceLineNo">061</span> private static final Log LOG = LogFactory.getLog(TestFastFail.class);<a name="line.61"></a> +<span class="sourceLineNo">062</span> private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.62"></a> +<span class="sourceLineNo">063</span> private static byte[] FAMILY = Bytes.toBytes("testFamily");<a name="line.63"></a> +<span class="sourceLineNo">064</span> private static final Random random = new Random();<a name="line.64"></a> +<span class="sourceLineNo">065</span> private static int SLAVES = 1;<a name="line.65"></a> +<span class="sourceLineNo">066</span> private static byte[] QUALIFIER = Bytes.toBytes("testQualifier");<a name="line.66"></a> +<span class="sourceLineNo">067</span> private static final int SLEEPTIME = 5000;<a name="line.67"></a> +<span class="sourceLineNo">068</span><a name="line.68"></a> +<span class="sourceLineNo">069</span> /**<a name="line.69"></a> +<span class="sourceLineNo">070</span> * @throws java.lang.Exception<a name="line.70"></a> +<span class="sourceLineNo">071</span> */<a name="line.71"></a> +<span class="sourceLineNo">072</span> @BeforeClass<a name="line.72"></a> +<span class="sourceLineNo">073</span> public static void setUpBeforeClass() throws Exception {<a name="line.73"></a> +<span class="sourceLineNo">074</span> TEST_UTIL.startMiniCluster(SLAVES);<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> /**<a name="line.77"></a> +<span class="sourceLineNo">078</span> * @throws java.lang.Exception<a name="line.78"></a> +<span class="sourceLineNo">079</span> */<a name="line.79"></a> +<span class="sourceLineNo">080</span> @AfterClass<a name="line.80"></a> +<span class="sourceLineNo">081</span> public static void tearDownAfterClass() throws Exception {<a name="line.81"></a> +<span class="sourceLineNo">082</span> TEST_UTIL.shutdownMiniCluster();<a name="line.82"></a> +<span class="sourceLineNo">083</span> }<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> * @throws java.lang.Exception<a name="line.86"></a> +<span class="sourceLineNo">087</span> */<a name="line.87"></a> +<span class="sourceLineNo">088</span> @Before<a name="line.88"></a> +<span class="sourceLineNo">089</span> public void setUp() throws Exception {<a name="line.89"></a> +<span class="sourceLineNo">090</span> MyPreemptiveFastFailInterceptor.numBraveSouls.set(0);<a name="line.90"></a> +<span class="sourceLineNo">091</span> CallQueueTooBigPffeInterceptor.numCallQueueTooBig.set(0);<a name="line.91"></a> +<span class="sourceLineNo">092</span> }<a name="line.92"></a> +<span class="sourceLineNo">093</span><a name="line.93"></a> +<span class="sourceLineNo">094</span> /**<a name="line.94"></a> +<span class="sourceLineNo">095</span> * @throws java.lang.Exception<a name="line.95"></a> +<span class="sourceLineNo">096</span> */<a name="line.96"></a> +<span class="sourceLineNo">097</span> @After<a name="line.97"></a> +<span class="sourceLineNo">098</span> public void tearDown() throws Exception {<a name="line.98"></a> +<span class="sourceLineNo">099</span> // Nothing to do.<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> @Ignore ("Can go zombie -- see HBASE-14421; FIX") @Test<a name="line.102"></a> +<span class="sourceLineNo">103</span> public void testFastFail() throws IOException, InterruptedException {<a name="line.103"></a> +<span class="sourceLineNo">104</span> Admin admin = TEST_UTIL.getHBaseAdmin();<a name="line.104"></a> +<span class="sourceLineNo">105</span><a name="line.105"></a> +<span class="sourceLineNo">106</span> final String tableName = "testClientRelearningExperiment";<a name="line.106"></a> +<span class="sourceLineNo">107</span> HTableDescriptor desc = new HTableDescriptor(TableName.valueOf(Bytes<a name="line.107"></a> +<span class="sourceLineNo">108</span> .toBytes(tableName)));<a name="line.108"></a> +<span class="sourceLineNo">109</span> desc.addFamily(new HColumnDescriptor(FAMILY));<a name="line.109"></a> +<span class="sourceLineNo">110</span> admin.createTable(desc, Bytes.toBytes("aaaa"), Bytes.toBytes("zzzz"), 32);<a name="line.110"></a> +<span class="sourceLineNo">111</span> final long numRows = 1000;<a name="line.111"></a> +<span class="sourceLineNo">112</span><a name="line.112"></a> +<span class="sourceLineNo">113</span> Configuration conf = TEST_UTIL.getConfiguration();<a name="line.113"></a> +<span class="sourceLineNo">114</span> conf.setLong(HConstants.HBASE_CLIENT_OPERATION_TIMEOUT, SLEEPTIME * 100);<a name="line.114"></a> +<span class="sourceLineNo">115</span> conf.setInt(HConstants.HBASE_CLIENT_PAUSE, SLEEPTIME / 10);<a name="line.115"></a> +<span class="sourceLineNo">116</span> conf.setBoolean(HConstants.HBASE_CLIENT_FAST_FAIL_MODE_ENABLED, true);<a name="line.116"></a> +<span class="sourceLineNo">117</span> conf.setLong(HConstants.HBASE_CLIENT_FAST_FAIL_THREASHOLD_MS, 0);<a name="line.117"></a> +<span class="sourceLineNo">118</span> conf.setClass(HConstants.HBASE_CLIENT_FAST_FAIL_INTERCEPTOR_IMPL,<a name="line.118"></a> +<span class="sourceLineNo">119</span> MyPreemptiveFastFailInterceptor.class,<a name="line.119"></a> +<span class="sourceLineNo">120</span> PreemptiveFastFailInterceptor.class);<a name="line.120"></a> +<span class="sourceLineNo">121</span><a name="line.121"></a> +<span class="sourceLineNo">122</span> final Connection connection = ConnectionFactory.createConnection(conf);<a name="line.122"></a> +<span class="sourceLineNo">123</span><a name="line.123"></a> +<span class="sourceLineNo">124</span> /**<a name="line.124"></a> +<span class="sourceLineNo">125</span> * Write numRows worth of data, so that the workers can arbitrarily read.<a name="line.125"></a> +<span class="sourceLineNo">126</span> */<a name="line.126"></a> +<span class="sourceLineNo">127</span> List<Put> puts = new ArrayList<>();<a name="line.127"></a> +<span class="sourceLineNo">128</span> for (long i = 0; i < numRows; i++) {<a name="line.128"></a> +<span class="sourceLineNo">129</span> byte[] rowKey = longToByteArrayKey(i);<a name="line.129"></a> +<span class="sourceLineNo">130</span> Put put = new Put(rowKey);<a name="line.130"></a> +<span class="sourceLineNo">131</span> byte[] value = rowKey; // value is the same as the row key<a name="line.131"></a> +<span class="sourceLineNo">132</span> put.addColumn(FAMILY, QUALIFIER, value);<a name="line.132"></a> +<span class="sourceLineNo">133</span> puts.add(put);<a name="line.133"></a> +<span class="sourceLineNo">134</span> }<a name="line.134"></a> +<span class="sourceLineNo">135</span> try (Table table = connection.getTable(TableName.valueOf(tableName))) {<a name="line.135"></a> +<span class="sourceLineNo">136</span> table.put(puts);<a name="line.136"></a> +<span class="sourceLineNo">137</span> LOG.info("Written all puts.");<a name="line.137"></a> +<span class="sourceLineNo">138</span> }<a name="line.138"></a> +<span class="sourceLineNo">139</span><a name="line.139"></a> +<span class="sourceLineNo">140</span> /**<a name="line.140"></a> +<span class="sourceLineNo">141</span> * The number of threads that are going to perform actions against the test<a name="line.141"></a> +<span class="sourceLineNo">142</span> * table.<a name="line.142"></a> +<span class="sourceLineNo">143</span> */<a name="line.143"></a> +<span class="sourceLineNo">144</span> int nThreads = 100;<a name="line.144"></a> +<span class="sourceLineNo">145</span> ExecutorService service = Executors.newFixedThreadPool(nThreads);<a name="line.145"></a> +<span class="sourceLineNo">146</span> final CountDownLatch continueOtherHalf = new CountDownLatch(1);<a name="line.146"></a> +<span class="sourceLineNo">147</span> final CountDownLatch doneHalfway = new CountDownLatch(nThreads);<a name="line.147"></a> +<span class="sourceLineNo">148</span><a name="line.148"></a> +<span class="sourceLineNo">149</span> final AtomicInteger numSuccessfullThreads = new AtomicInteger(0);<a name="line.149"></a> +<span class="sourceLineNo">150</span> final AtomicInteger numFailedThreads = new AtomicInteger(0);<a name="line.150"></a> +<span class="sourceLineNo">151</span><a name="line.151"></a> +<span class="sourceLineNo">152</span> // The total time taken for the threads to perform the second put;<a name="line.152"></a> +<span class="sourceLineNo">153</span> final AtomicLong totalTimeTaken = new AtomicLong(0);<a name="line.153"></a> +<span class="sourceLineNo">154</span> final AtomicInteger numBlockedWorkers = new AtomicInteger(0);<a name="line.154"></a> +<span class="sourceLineNo">155</span> final AtomicInteger numPreemptiveFastFailExceptions = new AtomicInteger(0);<a name="line.155"></a> +<span class="sourceLineNo">156</span><a name="line.156"></a> +<span class="sourceLineNo">157</span> List<Future<Boolean>> futures = new ArrayList<Future<Boolean>>();<a name="line.157"></a> +<span class="sourceLineNo">158</span> for (int i = 0; i < nThreads; i++) {<a name="line.158"></a> +<span class="sourceLineNo">159</span> futures.add(service.submit(new Callable<Boolean>() {<a name="line.159"></a> +<span class="sourceLineNo">160</span> /**<a name="line.160"></a> +<span class="sourceLineNo">161</span> * The workers are going to perform a couple of reads. The second read<a name="line.161"></a> +<span class="sourceLineNo">162</span> * will follow the killing of a regionserver so that we make sure that<a name="line.162"></a> +<span class="sourceLineNo">163</span> * some of threads go into PreemptiveFastFailExcception<a name="line.163"></a> +<span class="sourceLineNo">164</span> */<a name="line.164"></a> +<span class="sourceLineNo">165</span> public Boolean call() throws Exception {<a name="line.165"></a> +<span class="sourceLineNo">166</span> try (Table table = connection.getTable(TableName.valueOf(tableName))) {<a name="line.166"></a> +<span class="sourceLineNo">167</span> Thread.sleep(Math.abs(random.nextInt()) % 250); // Add some jitter here<a name="line.167"></a> +<span class="sourceLineNo">168</span> byte[] row = longToByteArrayKey(Math.abs(random.nextLong())<a name="line.168"></a> +<span class="sourceLineNo">169</span> % numRows);<a name="line.169"></a> +<span class="sourceLineNo">170</span> Get g = new Get(row);<a name="line.170"></a> +<span class="sourceLineNo">171</span> g.addColumn(FAMILY, QUALIFIER);<a name="line.171"></a> +<span class="sourceLineNo">172</span> try {<a name="line.172"></a> +<span class="sourceLineNo">173</span> table.get(g);<a name="line.173"></a> +<span class="sourceLineNo">174</span> } catch (Exception e) {<a name="line.174"></a> +<span class="sourceLineNo">175</span> LOG.debug("Get failed : ", e);<a name="line.175"></a> +<span class="sourceLineNo">176</span> doneHalfway.countDown();<a name="line.176"></a> +<span class="sourceLineNo">177</span> return 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> // Done with one get, proceeding to do the next one.<a name="line.180"></a> +<span class="sourceLineNo">181</span> doneHalfway.countDown();<a name="line.181"></a> +<span class="sourceLineNo">182</span> continueOtherHalf.await();<a name="line.182"></a> +<span class="sourceLineNo">183</span><a name="line.183"></a> +<span class="sourceLineNo">184</span> long startTime = System.currentTimeMillis();<a name="line.184"></a> +<span class="sourceLineNo">185</span> g = new Get(row);<a name="line.185"></a> +<span class="sourceLineNo">186</span> g.addColumn(FAMILY, QUALIFIER);<a name="line.186"></a> +<span class="sourceLineNo">187</span> try {<a name="line.187"></a> +<span class="sourceLineNo">188</span> table.get(g);<a name="line.188"></a> +<span class="sourceLineNo">189</span> // The get was successful<a name="line.189"></a> +<span class="sourceLineNo">190</span> numSuccessfullThreads.addAndGet(1);<a name="line.190"></a> +<span class="sourceLineNo">191</span> } catch (Exception e) {<a name="line.191"></a> +<span class="sourceLineNo">192</span> if (e instanceof PreemptiveFastFailException) {<a name="line.192"></a> +<span class="sourceLineNo">193</span> // We were issued a PreemptiveFastFailException<a name="line.193"></a> +<span class="sourceLineNo">194</span> numPreemptiveFastFailExceptions.addAndGet(1);<a name="line.194"></a> +<span class="sourceLineNo">195</span> }<a name="line.195"></a> +<span class="sourceLineNo">196</span> // Irrespective of PFFE, the request failed.<a name="line.196"></a> +<span class="sourceLineNo">197</span> numFailedThreads.addAndGet(1);<a name="line.197"></a> +<span class="sourceLineNo">198</span> return false;<a name="line.198"></a> +<span class="sourceLineNo">199</span> } finally {<a name="line.199"></a> +<span class="sourceLineNo">200</span> long enTime = System.currentTimeMillis();<a name="line.200"></a> +<span class="sourceLineNo">201</span> totalTimeTaken.addAndGet(enTime - startTime);<a name="line.201"></a> +<span class="sourceLineNo">202</span> if ((enTime - startTime) >= SLEEPTIME) {<a name="line.202"></a> +<span class="sourceLineNo">203</span> // Considering the slow workers as the blockedWorkers.<a name="line.203"></a> +<span class="sourceLineNo">204</span> // This assumes that the threads go full throttle at performing<a name="line.204"></a> +<span class="sourceLineNo">205</span> // actions. In case the thread scheduling itself is as slow as<a name="line.205"></a> +<span class="sourceLineNo">206</span> // SLEEPTIME, then this test might fail and so, we might have<a name="line.206"></a> +<span class="sourceLineNo">207</span> // set it to a higher number on slower machines.<a name="line.207"></a> +<span class="sourceLineNo">208</span> numBlockedWorkers.addAndGet(1);<a name="line.208"></a> +<span class="sourceLineNo">209</span> }<a name="line.209"></a> +<span class="sourceLineNo">210</span> }<a name="line.210"></a> +<span class="sourceLineNo">211</span> return true;<a name="line.211"></a> +<span class="sourceLineNo">212</span> } catch (Exception e) {<a name="line.212"></a> +<span class="sourceLineNo">213</span> LOG.error("Caught unknown exception", e);<a name="line.213"></a> +<span class="sourceLineNo">214</span> doneHalfway.countDown();<a name="line.214"></a> +<span class="sourceLineNo">215</span> return false;<a name="line.215"></a> +<span class="sourceLineNo">216</span> }<a name="line.216"></a> +<span class="sourceLineNo">217</span> }<a name="line.217"></a> +<span class="sourceLineNo">218</span> }));<a name="line.218"></a> +<span class="sourceLineNo">219</span> }<a name="line.219"></a> +<span class="sourceLineNo">220</span><a name="line.220"></a> +<span class="sourceLineNo">221</span> doneHalfway.await();<a name="line.221"></a> +<span class="sourceLineNo">222</span><a name="line.222"></a> +<span class="sourceLineNo">223</span> // Kill a regionserver<a name="line.223"></a> +<span class="sourceLineNo">224</span> TEST_UTIL.getHBaseCluster().getRegionServer(0).getRpcServer().stop();<a name="line.224"></a> +<span class="sourceLineNo">225</span> TEST_UTIL.getHBaseCluster().getRegionServer(0).stop("Testing");<a name="line.225"></a> +<span class="sourceLineNo">226</span><a name="line.226"></a> +<span class="sourceLineNo">227</span> // Let the threads continue going<a name="line.227"></a> +<span class="sourceLineNo">228</span> continueOtherHalf.countDown();<a name="line.228"></a> +<span class="sourceLineNo">229</span><a name="line.229"></a> +<span class="sourceLineNo">230</span> Thread.sleep(2 * SLEEPTIME);<a name="line.230"></a> +<span class="sourceLineNo">231</span> // Start a RS in the cluster<a name="line.231"></a> +<span class="sourceLineNo">232</span> TEST_UTIL.getHBaseCluster().startRegionServer();<a name="line.232"></a> +<span class="sourceLineNo">233</span><a name="line.233"></a> +<span class="sourceLineNo">234</span> int numThreadsReturnedFalse = 0;<a name="line.234"></a> +<span class="sourceLineNo">235</span> int numThreadsReturnedTrue = 0;<a name="line.235"></a> +<span class="sourceLineNo">236</span> int numThreadsThrewExceptions = 0;<a name="line.236"></a> +<span class="sourceLineNo">237</span> for (Future<Boolean> f : futures) {<a name="line.237"></a> +<span class="sourceLineNo">238</span> try {<a name="line.238"></a> +<span class="sourceLineNo">239</span> numThreadsReturnedTrue += f.get() ? 1 : 0;<a name="line.239"></a> +<span class="sourceLineNo">240</span> numThreadsReturnedFalse += f.get() ? 0 : 1;<a name="line.240"></a> +<span class="sourceLineNo">241</span> } catch (Exception e) {<a name="line.241"></a> +<span class="sourceLineNo">242</span> numThreadsThrewExceptions++;<a name="line.242"></a> +<span class="sourceLineNo">243</span> }<a name="line.243"></a> +<span class="sourceLineNo">244</span> }<a name="line.244"></a> +<span class="sourceLineNo">245</span> LOG.debug("numThreadsReturnedFalse:"<a name="line.245"></a> +<span class="sourceLineNo">246</span> + numThreadsReturnedFalse<a name="line.246"></a> +<span class="sourceLineNo">247</span> + " numThreadsReturnedTrue:"<a name="line.247"></a> +<span class="sourceLineNo">248</span> + numThreadsReturnedTrue<a name="line.248"></a> +<span class="sourceLineNo">249</span> + " numThreadsThrewExceptions:"<a name="line.249"></a> +<span class="sourceLineNo">250</span> + numThreadsThrewExceptions<a name="line.250"></a> +<span class="sourceLineNo">251</span> + " numFailedThreads:"<a name="line.251"></a> +<span class="sourceLineNo">252</span> + numFailedThreads.get()<a name="line.252"></a> +<span class="sourceLineNo">253</span> + " numSuccessfullThreads:"<a name="line.253"></a> +<span class="sourceLineNo">254</span> + numSuccessfullThreads.get()<a name="line.254"></a> +<span class="sourceLineNo">255</span> + " numBlockedWorkers:"<a name="line.255"></a> +<span class="sourceLineNo">256</span> + numBlockedWorkers.get()<a name="line.256"></a> +<span class="sourceLineNo">257</span> + " totalTimeWaited: "<a name="line.257"></a> +<span class="sourceLineNo">258</span> + totalTimeTaken.get()<a name="line.258"></a> +<span class="sourceLineNo">259</span> / (numBlockedWorkers.get() == 0 ? Long.MAX_VALUE : numBlockedWorkers<a name="line.259"></a> +<span class="sourceLineNo">260</span> .get()) + " numPFFEs: " + numPreemptiveFastFailExceptions.get());<a name="line.260"></a> +<span class="sourceLineNo">261</span><a name="line.261"></a> +<span class="sourceLineNo">262</span> assertEquals("The expected number of all the successfull and the failed "<a name="line.262"></a> +<span class="sourceLineNo">263</span> + "threads should equal the total number of threads that we spawned",<a name="line.263"></a> +<span class="sourceLineNo">264</span> nThreads, numFailedThreads.get() + numSuccessfullThreads.get());<a name="line.264"></a> +<span class="sourceLineNo">265</span> assertEquals(<a name="line.265"></a> +<span class="sourceLineNo">266</span> "All the failures should be coming from the secondput failure",<a name="line.266"></a> +<span class="sourceLineNo">267</span> numFailedThreads.get(), numThreadsReturnedFalse);<a name="line.267"></a> +<span class="sourceLineNo">268</span> assertEquals("Number of threads that threw execution exceptions "<a name="line.268"></a> +<span class="sourceLineNo">269</span> + "otherwise should be 0", numThreadsThrewExceptions, 0);<a name="line.269"></a> +<span class="sourceLineNo">270</span> assertEquals("The regionservers that returned true should equal to the"<a name="line.270"></a> +<span class="sourceLineNo">271</span> + " number of successful threads", numThreadsReturnedTrue,<a name="line.271"></a> +<span class="sourceLineNo">272</span> numSuccessfullThreads.get());<a name="line.272"></a> +<span class="sourceLineNo">273</span> assertTrue(<a name="line.273"></a> +<span class="sourceLineNo">274</span> "There will be atleast one thread that retried instead of failing",<a name="line.274"></a> +<span class="sourceLineNo">275</span> MyPreemptiveFastFailInterceptor.numBraveSouls.get() > 0);<a name="line.275"></a> +<span class="sourceLineNo">276</span> assertTrue(<a name="line.276"></a> +<span class="sourceLineNo">277</span> "There will be atleast one PreemptiveFastFail exception,"<a name="line.277"></a> +<span class="sourceLineNo">278</span> + " otherwise, the test makes little sense."<a name="line.278"></a> +<span class="sourceLineNo">279</span> + "numPreemptiveFastFailExceptions: "<a name="line.279"></a> +<span class="sourceLineNo">280</span> + numPreemptiveFastFailExceptions.get(),<a name="line.280"></a> +<span class="sourceLineNo">281</span> numPreemptiveFastFailExceptions.get() > 0);<a name="line.281"></a> +<span class="sourceLineNo">282</span> <a name="line.282"></a> +<span class="sourceLineNo">283</span> assertTrue(<a name="line.283"></a> +<span class="sourceLineNo">284</span> "Only few thread should ideally be waiting for the dead "<a name="line.284"></a> +<span class="sourceLineNo">285</span> + "regionserver to be coming back. numBlockedWorkers:"<a name="line.285"></a> +<span class="sourceLineNo">286</span> + numBlockedWorkers.get() + " threads that retried : "<a name="line.286"></a> +<span class="sourceLineNo">287</span> + MyPreemptiveFastFailInterceptor.numBraveSouls.get(),<a name="line.287"></a> +<span class="sourceLineNo">288</span> numBlockedWorkers.get() <= MyPreemptiveFastFailInterceptor.numBraveSouls<a name="line.288"></a> +<span class="sourceLineNo">289</span> .get());<a name="line.289"></a> +<span class="sourceLineNo">290</span> }<a name="line.290"></a> +<span class="sourceLineNo">291</span><a name="line.291"></a> +<span class="sourceLineNo">292</span> @Test<a name="line.292"></a> +<span class="sourceLineNo">293</span> public void testCallQueueTooBigException() throws Exception {<a name="line.293"></a> +<span class="sourceLineNo">294</span> Admin admin = TEST_UTIL.getHBaseAdmin();<a name="line.294"></a> +<span class="sourceLineNo">295</span><a name="line.295"></a> +<span class="sourceLineNo">296</span> final String tableName = "testCallQueueTooBigException";<a name="line.296"></a> +<span class="sourceLineNo">297</span> HTableDescriptor desc = new HTableDescriptor(TableName.valueOf(Bytes<a name="line.297"></a> +<span class="sourceLineNo">298</span> .toBytes(tableName)));<a name="line.298"></a> +<span class="sourceLineNo">299</span> desc.addFamily(new HColumnDescriptor(FAMILY));<a name="line.299"></a> +<span class="sourceLineNo">300</span> admin.createTable(desc, Bytes.toBytes("aaaa"), Bytes.toBytes("zzzz"), 3);<a name="line.300"></a> +<span class="sourceLineNo">301</span><a name="line.301"></a> +<span class="sourceLineNo">302</span> Configuration conf = TEST_UTIL.getConfiguration();<a name="line.302"></a> +<span class="sourceLineNo">303</span> conf.setLong(HConstants.HBASE_CLIENT_OPERATION_TIMEOUT, 100);<a name="line.303"></a> +<span class="sourceLineNo">304</span> conf.setInt(HConstants.HBASE_CLIENT_PAUSE, 500);<a name="line.304"></a> +<span class="sourceLineNo">305</span> conf.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 1);<a name="line.305"></a> +<span class="sourceLineNo">306</span><a name="line.306"></a> +<span class="sourceLineNo">307</span> conf.setBoolean(HConstants.HBASE_CLIENT_FAST_FAIL_MODE_ENABLED, true);<a name="line.307"></a> +<span class="sourceLineNo">308</span> conf.setLong(HConstants.HBASE_CLIENT_FAST_FAIL_THREASHOLD_MS, 0);<a name="line.308"></a> +<span class="sourceLineNo">309</span> conf.setClass(HConstants.HBASE_CLIENT_FAST_FAIL_INTERCEPTOR_IMPL,<a name="line.309"></a> +<span class="sourceLineNo">310</span> CallQueueTooBigPffeInterceptor.class, PreemptiveFastFailInterceptor.class);<a name="line.310"></a> +<span class="sourceLineNo">311</span><a name="line.311"></a> +<span class="sourceLineNo">312</span> final Connection connection = ConnectionFactory.createConnection(conf);<a name="line.312"></a> +<span class="sourceLineNo">313</span><a name="line.313"></a> +<span class="sourceLineNo">314</span> //Set max call queues size to 0<a name="line.314"></a> +<span class="sourceLineNo">315</span> SimpleRpcScheduler srs = (SimpleRpcScheduler)<a name="line.315"></a> +<span class="sourceLineNo">316</span> TEST_UTIL.getHBaseCluster().getRegionServer(0).getRpcServer().getScheduler();<a name="line.316"></a> +<span class="sourceLineNo">317</span> Configuration newConf = HBaseConfiguration.create(TEST_UTIL.getConfiguration());<a name="line.317"></a> +<span class="sourceLineNo">318</span> newConf.setInt("hbase.ipc.server.max.callqueue.length", 0);<a name="line.318"></a> +<span class="sourceLineNo">319</span> srs.onConfigurationChange(newConf);<a name="line.319"></a> +<span class="sourceLineNo">320</span><a name="line.320"></a> +<span class="sourceLineNo">321</span> try (Table table = connection.getTable(TableName.valueOf(tableName))) {<a name="line.321"></a> +<span class="sourceLineNo">322</span> Get get = new Get(new byte[1]);<a name="line.322"></a> +<span class="sourceLineNo">323</span> table.get(get);<a name="line.323"></a> +<span class="sourceLineNo">324</span> } catch (Throwable ex) {<a name="line.324"></a> +<span class="sourceLineNo">325</span> }<a name="line.325"></a> +<span class="sourceLineNo">326</span><a name="line.326"></a> +<span class="sourceLineNo">327</span> assertEquals("There should have been 1 hit", 1,<a name="line.327"></a> +<span class="sourceLineNo">328</span> CallQueueTooBigPffeInterceptor.numCallQueueTooBig.get());<a name="line.328"></a> +<span class="sourceLineNo">329</span><a name="line.329"></a> +<span class="sourceLineNo">330</span> newConf = HBaseConfiguration.create(TEST_UTIL.getConfiguration());<a name="line.330"></a> +<span class="sourceLineNo">331</span> newConf.setInt("hbase.ipc.server.max.callqueue.length", 250);<a name="line.331"></a> +<span class="sourceLineNo">332</span> srs.onConfigurationChange(newConf);<a name="line.332"></a> +<span class="sourceLineNo">333</span> }<a name="line.333"></a> +<span class="sourceLineNo">334</span><a name="line.334"></a> +<span class="sourceLineNo">335</span> public static class MyPreemptiveFastFailInterceptor extends<a name="line.335"></a> +<span class="sourceLineNo">336</span> PreemptiveFastFailInterceptor {<a name="line.336"></a> +<span class="sourceLineNo">337</span> public static AtomicInteger numBraveSouls = new AtomicInteger();<a name="line.337"></a> +<span class="sourceLineNo">338</span><a name="line.338"></a> +<span class="sourceLineNo">339</span> @Override<a name="line.339"></a> +<span class="sourceLineNo">340</span> protected boolean shouldRetryInspiteOfFastFail(FailureInfo fInfo) {<a name="line.340"></a> +<span class="sourceLineNo">341</span> boolean ret = super.shouldRetryInspiteOfFastFail(fInfo);<a name="line.341"></a> +<span class="sourceLineNo">342</span> if (ret)<a name="line.342"></a> +<span class="sourceLineNo">343</span> numBraveSouls.addAndGet(1);<a name="line.343"></a> +<span class="sourceLineNo">344</span> return ret;<a name="line.344"></a> +<span class="sourceLineNo">345</span> }<a name="line.345"></a> +<span class="sourceLineNo">346</span><a name="line.346"></a> +<span class="sourceLineNo">347</span> public MyPreemptiveFastFailInterceptor(Configuration conf) {<a name="line.347"></a> +<span class="sourceLineNo">348</span> super(conf);<a name="line.348"></a> +<span class="sourceLineNo">349</span> }<a name="line.349"></a> +<span class="sourceLineNo">350</span> }<a name="line.350"></a> +<span class="sourceLineNo">351</span><a name="line.351"></a> +<span class="sourceLineNo">352</span> private byte[] longToByteArrayKey(long rowKey) {<a name="line.352"></a> +<span class="sourceLineNo">353</span> return LoadTestKVGenerator.md5PrefixedKey(rowKey).getBytes();<a name="line.353"></a> +<span class="sourceLineNo">354</span> }<a name="line.354"></a> +<span class="sourceLineNo">355</span><a name="line.355"></a> +<span class="sourceLineNo">356</span> public static class CallQueueTooBigPffeInterceptor extends<a name="line.356"></a> +<span class="sourceLineNo">357</span> PreemptiveFastFailInterceptor {<a name="line.357"></a> +<span class="sourceLineNo">358</span> public static AtomicInteger numCallQueueTooBig = new AtomicInteger();<a name="line.358"></a> +<span class="sourceLineNo">359</span><a name="line.359"></a> +<span class="sourceLineNo">360</span> @Override<a name="line.360"></a> +<span class="sourceLineNo">361</span> protected void handleFailureToServer(ServerName serverName, Throwable t) {<a name="line.361"></a> +<span class="sourceLineNo">362</span> super.handleFailureToServer(serverName, t);<a name="line.362"></a> +<span class="sourceLineNo">363</span> numCallQueueTooBig.incrementAndGet();<a name="line.363"></a> +<span class="sourceLineNo">364</span> }<a name="line.364"></a> +<span class="sourceLineNo">365</span><a name="line.365"></a> +<span class="sourceLineNo">366</span> public CallQueueTooBigPffeInterceptor(Configuration conf) {<a name="line.366"></a> +<span class="sourceLineNo">367</span> super(conf);<a name="line.367"></a> +<span class="sourceLineNo">368</span> }<a name="line.368"></a> +<span class="sourceLineNo">369</span> }<a name="line.369"></a> +<span class="sourceLineNo">370</span>}<a name="line.370"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html>
