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<pre><span class="source-line-no">001</span><span id="line-1">/*</span>
<span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span>
<span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span>
<span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span>
<span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span>
<span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span>
<span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span>
<span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span>
<span class="source-line-no">009</span><span id="line-9"> *</span>
<span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span>
<span class="source-line-no">011</span><span id="line-11"> *</span>
<span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span>
<span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
<span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
<span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span>
<span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span>
<span class="source-line-no">017</span><span id="line-17"> */</span>
<span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.client;</span>
<span class="source-line-no">019</span><span id="line-19"></span>
<span class="source-line-no">020</span><span id="line-20">import static org.apache.hadoop.hbase.HConstants.HBASE_CLIENT_META_OPERATION_TIMEOUT;</span>
<span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.io.ByteBuffAllocator.MAX_BUFFER_COUNT_KEY;</span>
<span class="source-line-no">022</span><span id="line-22">import static org.junit.Assert.assertEquals;</span>
<span class="source-line-no">023</span><span id="line-23"></span>
<span class="source-line-no">024</span><span id="line-24">import java.io.IOException;</span>
<span class="source-line-no">025</span><span id="line-25">import java.util.ArrayList;</span>
<span class="source-line-no">026</span><span id="line-26">import java.util.Arrays;</span>
<span class="source-line-no">027</span><span id="line-27">import java.util.Collections;</span>
<span class="source-line-no">028</span><span id="line-28">import java.util.List;</span>
<span class="source-line-no">029</span><span id="line-29">import java.util.concurrent.ExecutionException;</span>
<span class="source-line-no">030</span><span id="line-30">import java.util.concurrent.ExecutorService;</span>
<span class="source-line-no">031</span><span id="line-31">import java.util.concurrent.Executors;</span>
<span class="source-line-no">032</span><span id="line-32">import java.util.concurrent.Future;</span>
<span class="source-line-no">033</span><span id="line-33">import java.util.concurrent.ThreadLocalRandom;</span>
<span class="source-line-no">034</span><span id="line-34">import java.util.concurrent.TimeUnit;</span>
<span class="source-line-no">035</span><span id="line-35">import java.util.concurrent.atomic.AtomicBoolean;</span>
<span class="source-line-no">036</span><span id="line-36">import java.util.stream.Collectors;</span>
<span class="source-line-no">037</span><span id="line-37">import java.util.stream.IntStream;</span>
<span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.HBaseClassTestRule;</span>
<span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.HBaseTestingUtil;</span>
<span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.MemoryCompactionPolicy;</span>
<span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.ServerName;</span>
<span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.TableName;</span>
<span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.Waiter.ExplainingPredicate;</span>
<span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.hbase.regionserver.CompactingMemStore;</span>
<span class="source-line-no">045</span><span id="line-45">import org.apache.hadoop.hbase.regionserver.HRegion;</span>
<span class="source-line-no">046</span><span id="line-46">import org.apache.hadoop.hbase.testclassification.ClientTests;</span>
<span class="source-line-no">047</span><span id="line-47">import org.apache.hadoop.hbase.testclassification.LargeTests;</span>
<span class="source-line-no">048</span><span id="line-48">import org.apache.hadoop.hbase.util.Bytes;</span>
<span class="source-line-no">049</span><span id="line-49">import org.apache.hadoop.hbase.util.RetryCounter;</span>
<span class="source-line-no">050</span><span id="line-50">import org.apache.hadoop.hbase.util.Threads;</span>
<span class="source-line-no">051</span><span id="line-51">import org.junit.AfterClass;</span>
<span class="source-line-no">052</span><span id="line-52">import org.junit.Assert;</span>
<span class="source-line-no">053</span><span id="line-53">import org.junit.BeforeClass;</span>
<span class="source-line-no">054</span><span id="line-54">import org.junit.ClassRule;</span>
<span class="source-line-no">055</span><span id="line-55">import org.junit.Test;</span>
<span class="source-line-no">056</span><span id="line-56">import org.junit.experimental.categories.Category;</span>
<span class="source-line-no">057</span><span id="line-57">import org.slf4j.Logger;</span>
<span class="source-line-no">058</span><span id="line-58">import org.slf4j.LoggerFactory;</span>
<span class="source-line-no">059</span><span id="line-59"></span>
<span class="source-line-no">060</span><span id="line-60">import org.apache.hbase.thirdparty.com.google.common.io.Closeables;</span>
<span class="source-line-no">061</span><span id="line-61">import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;</span>
<span class="source-line-no">062</span><span id="line-62"></span>
<span class="source-line-no">063</span><span id="line-63">/**</span>
<span class="source-line-no">064</span><span id="line-64"> * Will split the table, and move region randomly when testing.</span>
<span class="source-line-no">065</span><span id="line-65"> */</span>
<span class="source-line-no">066</span><span id="line-66">@Category({ LargeTests.class, ClientTests.class })</span>
<span class="source-line-no">067</span><span id="line-67">public class TestAsyncTableGetMultiThreaded {</span>
<span class="source-line-no">068</span><span id="line-68"></span>
<span class="source-line-no">069</span><span id="line-69"> @ClassRule</span>
<span class="source-line-no">070</span><span id="line-70"> public static final HBaseClassTestRule CLASS_RULE =</span>
<span class="source-line-no">071</span><span id="line-71"> HBaseClassTestRule.forClass(TestAsyncTableGetMultiThreaded.class);</span>
<span class="source-line-no">072</span><span id="line-72"></span>
<span class="source-line-no">073</span><span id="line-73"> private static final Logger LOG = LoggerFactory.getLogger(TestAsyncTableGetMultiThreaded.class);</span>
<span class="source-line-no">074</span><span id="line-74"></span>
<span class="source-line-no">075</span><span id="line-75"> private static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();</span>
<span class="source-line-no">076</span><span id="line-76"></span>
<span class="source-line-no">077</span><span id="line-77"> private static final TableName TABLE_NAME = TableName.valueOf("async");</span>
<span class="source-line-no">078</span><span id="line-78"> private static final byte[] FAMILY = Bytes.toBytes("cf");</span>
<span class="source-line-no">079</span><span id="line-79"> private static final byte[] QUALIFIER = Bytes.toBytes("cq");</span>
<span class="source-line-no">080</span><span id="line-80"> private static final int COUNT = 1000;</span>
<span class="source-line-no">081</span><span id="line-81"></span>
<span class="source-line-no">082</span><span id="line-82"> private static AsyncConnection CONN;</span>
<span class="source-line-no">083</span><span id="line-83"></span>
<span class="source-line-no">084</span><span id="line-84"> private static AsyncTable&lt;?&gt; TABLE;</span>
<span class="source-line-no">085</span><span id="line-85"></span>
<span class="source-line-no">086</span><span id="line-86"> private static byte[][] SPLIT_KEYS;</span>
<span class="source-line-no">087</span><span id="line-87"></span>
<span class="source-line-no">088</span><span id="line-88"> @BeforeClass</span>
<span class="source-line-no">089</span><span id="line-89"> public static void setUp() throws Exception {</span>
<span class="source-line-no">090</span><span id="line-90"> setUp(MemoryCompactionPolicy.NONE);</span>
<span class="source-line-no">091</span><span id="line-91"> }</span>
<span class="source-line-no">092</span><span id="line-92"></span>
<span class="source-line-no">093</span><span id="line-93"> protected static void setUp(MemoryCompactionPolicy memoryCompaction) throws Exception {</span>
<span class="source-line-no">094</span><span id="line-94"> TEST_UTIL.getConfiguration().setLong(HBASE_CLIENT_META_OPERATION_TIMEOUT, 60000L);</span>
<span class="source-line-no">095</span><span id="line-95"> TEST_UTIL.getConfiguration().setInt(MAX_BUFFER_COUNT_KEY, 100);</span>
<span class="source-line-no">096</span><span id="line-96"> TEST_UTIL.getConfiguration().set(CompactingMemStore.COMPACTING_MEMSTORE_TYPE_KEY,</span>
<span class="source-line-no">097</span><span id="line-97"> String.valueOf(memoryCompaction));</span>
<span class="source-line-no">098</span><span id="line-98"> TEST_UTIL.getConfiguration().setBoolean("hbase.master.balancer.decision.buffer.enabled", true);</span>
<span class="source-line-no">099</span><span id="line-99"></span>
<span class="source-line-no">100</span><span id="line-100"> TEST_UTIL.startMiniCluster(3);</span>
<span class="source-line-no">101</span><span id="line-101"> SPLIT_KEYS = new byte[8][];</span>
<span class="source-line-no">102</span><span id="line-102"> for (int i = 111; i &lt; 999; i += 111) {</span>
<span class="source-line-no">103</span><span id="line-103"> SPLIT_KEYS[i / 111 - 1] = Bytes.toBytes(String.format("%03d", i));</span>
<span class="source-line-no">104</span><span id="line-104"> }</span>
<span class="source-line-no">105</span><span id="line-105"> TEST_UTIL.createTable(TABLE_NAME, FAMILY);</span>
<span class="source-line-no">106</span><span id="line-106"> TEST_UTIL.waitTableAvailable(TABLE_NAME);</span>
<span class="source-line-no">107</span><span id="line-107"> CONN = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get();</span>
<span class="source-line-no">108</span><span id="line-108"> TABLE = CONN.getTableBuilder(TABLE_NAME).setReadRpcTimeout(1, TimeUnit.SECONDS)</span>
<span class="source-line-no">109</span><span id="line-109"> .setMaxRetries(1000).build();</span>
<span class="source-line-no">110</span><span id="line-110"> TABLE.putAll(</span>
<span class="source-line-no">111</span><span id="line-111"> IntStream.range(0, COUNT).mapToObj(i -&gt; new Put(Bytes.toBytes(String.format("%03d", i)))</span>
<span class="source-line-no">112</span><span id="line-112"> .addColumn(FAMILY, QUALIFIER, Bytes.toBytes(i))).collect(Collectors.toList()))</span>
<span class="source-line-no">113</span><span id="line-113"> .get();</span>
<span class="source-line-no">114</span><span id="line-114"> }</span>
<span class="source-line-no">115</span><span id="line-115"></span>
<span class="source-line-no">116</span><span id="line-116"> @AfterClass</span>
<span class="source-line-no">117</span><span id="line-117"> public static void tearDown() throws Exception {</span>
<span class="source-line-no">118</span><span id="line-118"> Closeables.close(CONN, true);</span>
<span class="source-line-no">119</span><span id="line-119"> TEST_UTIL.shutdownMiniCluster();</span>
<span class="source-line-no">120</span><span id="line-120"> }</span>
<span class="source-line-no">121</span><span id="line-121"></span>
<span class="source-line-no">122</span><span id="line-122"> private void run(AtomicBoolean stop) throws InterruptedException, ExecutionException {</span>
<span class="source-line-no">123</span><span id="line-123"> while (!stop.get()) {</span>
<span class="source-line-no">124</span><span id="line-124"> for (int i = 0; i &lt; COUNT; i++) {</span>
<span class="source-line-no">125</span><span id="line-125"> assertEquals(i, Bytes.toInt(TABLE.get(new Get(Bytes.toBytes(String.format("%03d", i))))</span>
<span class="source-line-no">126</span><span id="line-126"> .get().getValue(FAMILY, QUALIFIER)));</span>
<span class="source-line-no">127</span><span id="line-127"> }</span>
<span class="source-line-no">128</span><span id="line-128"> // sleep a bit so we do not add to much load to the test machine as we have 20 threads here</span>
<span class="source-line-no">129</span><span id="line-129"> Thread.sleep(10);</span>
<span class="source-line-no">130</span><span id="line-130"> }</span>
<span class="source-line-no">131</span><span id="line-131"> }</span>
<span class="source-line-no">132</span><span id="line-132"></span>
<span class="source-line-no">133</span><span id="line-133"> @Test</span>
<span class="source-line-no">134</span><span id="line-134"> public void test() throws Exception {</span>
<span class="source-line-no">135</span><span id="line-135"> LOG.info("====== Test started ======");</span>
<span class="source-line-no">136</span><span id="line-136"> int numThreads = 7;</span>
<span class="source-line-no">137</span><span id="line-137"> AtomicBoolean stop = new AtomicBoolean(false);</span>
<span class="source-line-no">138</span><span id="line-138"> ExecutorService executor = Executors.newFixedThreadPool(numThreads,</span>
<span class="source-line-no">139</span><span id="line-139"> new ThreadFactoryBuilder().setNameFormat("TestAsyncGet-pool-%d").setDaemon(true)</span>
<span class="source-line-no">140</span><span id="line-140"> .setUncaughtExceptionHandler(Threads.LOGGING_EXCEPTION_HANDLER).build());</span>
<span class="source-line-no">141</span><span id="line-141"> List&lt;Future&lt;?&gt;&gt; futures = new ArrayList&lt;&gt;();</span>
<span class="source-line-no">142</span><span id="line-142"> IntStream.range(0, numThreads).forEach(i -&gt; futures.add(executor.submit(() -&gt; {</span>
<span class="source-line-no">143</span><span id="line-143"> run(stop);</span>
<span class="source-line-no">144</span><span id="line-144"> return null;</span>
<span class="source-line-no">145</span><span id="line-145"> })));</span>
<span class="source-line-no">146</span><span id="line-146"> LOG.info("====== Scheduled {} read threads ======", numThreads);</span>
<span class="source-line-no">147</span><span id="line-147"> Collections.shuffle(Arrays.asList(SPLIT_KEYS), ThreadLocalRandom.current());</span>
<span class="source-line-no">148</span><span id="line-148"> Admin admin = TEST_UTIL.getAdmin();</span>
<span class="source-line-no">149</span><span id="line-149"> for (byte[] splitPoint : SPLIT_KEYS) {</span>
<span class="source-line-no">150</span><span id="line-150"> int oldRegionCount = admin.getRegions(TABLE_NAME).size();</span>
<span class="source-line-no">151</span><span id="line-151"> LOG.info("====== Splitting at {} ======, region count before splitting is {}",</span>
<span class="source-line-no">152</span><span id="line-152"> Bytes.toStringBinary(splitPoint), oldRegionCount);</span>
<span class="source-line-no">153</span><span id="line-153"> admin.split(TABLE_NAME, splitPoint);</span>
<span class="source-line-no">154</span><span id="line-154"> TEST_UTIL.waitFor(30000, new ExplainingPredicate&lt;Exception&gt;() {</span>
<span class="source-line-no">155</span><span id="line-155"> @Override</span>
<span class="source-line-no">156</span><span id="line-156"> public boolean evaluate() throws Exception {</span>
<span class="source-line-no">157</span><span id="line-157"> return TEST_UTIL.getMiniHBaseCluster().getRegions(TABLE_NAME).size() &gt; oldRegionCount;</span>
<span class="source-line-no">158</span><span id="line-158"> }</span>
<span class="source-line-no">159</span><span id="line-159"></span>
<span class="source-line-no">160</span><span id="line-160"> @Override</span>
<span class="source-line-no">161</span><span id="line-161"> public String explainFailure() throws Exception {</span>
<span class="source-line-no">162</span><span id="line-162"> return "Split has not finished yet";</span>
<span class="source-line-no">163</span><span id="line-163"> }</span>
<span class="source-line-no">164</span><span id="line-164"> });</span>
<span class="source-line-no">165</span><span id="line-165"> List&lt;HRegion&gt; regions = TEST_UTIL.getMiniHBaseCluster().getRegions(TABLE_NAME);</span>
<span class="source-line-no">166</span><span id="line-166"> LOG.info("====== Split at {} ======, region count after splitting is {}",</span>
<span class="source-line-no">167</span><span id="line-167"> Bytes.toStringBinary(splitPoint), regions.size());</span>
<span class="source-line-no">168</span><span id="line-168"> for (HRegion region : regions) {</span>
<span class="source-line-no">169</span><span id="line-169"> LOG.info("====== Compact {} ======", region.getRegionInfo());</span>
<span class="source-line-no">170</span><span id="line-170"> region.compact(true);</span>
<span class="source-line-no">171</span><span id="line-171"> }</span>
<span class="source-line-no">172</span><span id="line-172"> for (HRegion region : regions) {</span>
<span class="source-line-no">173</span><span id="line-173"> // Waiting for compaction to complete and references are cleaned up</span>
<span class="source-line-no">174</span><span id="line-174"> LOG.info("====== Waiting for compaction on {} ======", region.getRegionInfo());</span>
<span class="source-line-no">175</span><span id="line-175"> RetryCounter retrier = new RetryCounter(30, 1, TimeUnit.SECONDS);</span>
<span class="source-line-no">176</span><span id="line-176"> for (;;) {</span>
<span class="source-line-no">177</span><span id="line-177"> try {</span>
<span class="source-line-no">178</span><span id="line-178"> if (</span>
<span class="source-line-no">179</span><span id="line-179"> admin.getCompactionStateForRegion(region.getRegionInfo().getRegionName())</span>
<span class="source-line-no">180</span><span id="line-180"> == CompactionState.NONE</span>
<span class="source-line-no">181</span><span id="line-181"> ) {</span>
<span class="source-line-no">182</span><span id="line-182"> break;</span>
<span class="source-line-no">183</span><span id="line-183"> }</span>
<span class="source-line-no">184</span><span id="line-184"> } catch (IOException e) {</span>
<span class="source-line-no">185</span><span id="line-185"> LOG.warn("Failed to query");</span>
<span class="source-line-no">186</span><span id="line-186"> }</span>
<span class="source-line-no">187</span><span id="line-187"> if (!retrier.shouldRetry()) {</span>
<span class="source-line-no">188</span><span id="line-188"> throw new IOException("Can not finish compaction in time after attempt "</span>
<span class="source-line-no">189</span><span id="line-189"> + retrier.getAttemptTimes() + " times");</span>
<span class="source-line-no">190</span><span id="line-190"> }</span>
<span class="source-line-no">191</span><span id="line-191"> retrier.sleepUntilNextRetry();</span>
<span class="source-line-no">192</span><span id="line-192"> }</span>
<span class="source-line-no">193</span><span id="line-193"> LOG.info("====== Compaction on {} finished, close and archive compacted files ======",</span>
<span class="source-line-no">194</span><span id="line-194"> region.getRegionInfo());</span>
<span class="source-line-no">195</span><span id="line-195"> region.getStores().get(0).closeAndArchiveCompactedFiles();</span>
<span class="source-line-no">196</span><span id="line-196"> LOG.info("====== Close and archive compacted files on {} done ======",</span>
<span class="source-line-no">197</span><span id="line-197"> region.getRegionInfo());</span>
<span class="source-line-no">198</span><span id="line-198"> }</span>
<span class="source-line-no">199</span><span id="line-199"> Thread.sleep(5000);</span>
<span class="source-line-no">200</span><span id="line-200"> LOG.info("====== Balancing cluster ======");</span>
<span class="source-line-no">201</span><span id="line-201"> admin.balance(BalanceRequest.newBuilder().setIgnoreRegionsInTransition(true).build());</span>
<span class="source-line-no">202</span><span id="line-202"> LOG.info("====== Balance cluster done ======");</span>
<span class="source-line-no">203</span><span id="line-203"> Thread.sleep(5000);</span>
<span class="source-line-no">204</span><span id="line-204"> ServerName metaServer = TEST_UTIL.getHBaseCluster().getServerHoldingMeta();</span>
<span class="source-line-no">205</span><span id="line-205"> ServerName newMetaServer = TEST_UTIL.getHBaseCluster().getRegionServerThreads().stream()</span>
<span class="source-line-no">206</span><span id="line-206"> .map(t -&gt; t.getRegionServer().getServerName()).filter(s -&gt; !s.equals(metaServer)).findAny()</span>
<span class="source-line-no">207</span><span id="line-207"> .get();</span>
<span class="source-line-no">208</span><span id="line-208"> LOG.info("====== Moving meta from {} to {} ======", metaServer, newMetaServer);</span>
<span class="source-line-no">209</span><span id="line-209"> admin.move(RegionInfoBuilder.FIRST_META_REGIONINFO.getEncodedNameAsBytes(), newMetaServer);</span>
<span class="source-line-no">210</span><span id="line-210"> LOG.info("====== Move meta done ======");</span>
<span class="source-line-no">211</span><span id="line-211"> Thread.sleep(5000);</span>
<span class="source-line-no">212</span><span id="line-212"> }</span>
<span class="source-line-no">213</span><span id="line-213"> List&lt;LogEntry&gt; balancerDecisionRecords =</span>
<span class="source-line-no">214</span><span id="line-214"> admin.getLogEntries(null, "BALANCER_DECISION", ServerType.MASTER, 2, null);</span>
<span class="source-line-no">215</span><span id="line-215"> Assert.assertEquals(balancerDecisionRecords.size(), 2);</span>
<span class="source-line-no">216</span><span id="line-216"> LOG.info("====== Read test finished, shutdown thread pool ======");</span>
<span class="source-line-no">217</span><span id="line-217"> stop.set(true);</span>
<span class="source-line-no">218</span><span id="line-218"> executor.shutdown();</span>
<span class="source-line-no">219</span><span id="line-219"> for (int i = 0; i &lt; numThreads; i++) {</span>
<span class="source-line-no">220</span><span id="line-220"> LOG.info("====== Waiting for {} threads to finish, remaining {} ======", numThreads,</span>
<span class="source-line-no">221</span><span id="line-221"> numThreads - i);</span>
<span class="source-line-no">222</span><span id="line-222"> futures.get(i).get();</span>
<span class="source-line-no">223</span><span id="line-223"> }</span>
<span class="source-line-no">224</span><span id="line-224"> LOG.info("====== Test test finished ======");</span>
<span class="source-line-no">225</span><span id="line-225"> }</span>
<span class="source-line-no">226</span><span id="line-226">}</span>
</pre>
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