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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.util;</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.util.PriorityQueue;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.Queue;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Set;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.concurrent.ArrayBlockingQueue;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.concurrent.BlockingQueue;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.concurrent.ConcurrentSkipListSet;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.concurrent.atomic.AtomicLong;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.HRegionLocation;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.client.RegionLocator;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.client.Table;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.util.test.LoadTestDataGenerator;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.slf4j.Logger;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">038</span><span id="line-38"></span> |
| <span class="source-line-no">039</span><span id="line-39">/** Creates multiple threads that write key/values into the */</span> |
| <span class="source-line-no">040</span><span id="line-40">@InterfaceAudience.Private</span> |
| <span class="source-line-no">041</span><span id="line-41">public abstract class MultiThreadedWriterBase extends MultiThreadedAction {</span> |
| <span class="source-line-no">042</span><span id="line-42"> private static final Logger LOG = LoggerFactory.getLogger(MultiThreadedWriterBase.class);</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44"> /**</span> |
| <span class="source-line-no">045</span><span id="line-45"> * A temporary place to keep track of inserted/updated keys. This is written to by all writers and</span> |
| <span class="source-line-no">046</span><span id="line-46"> * is drained on a separate thread that populates {@link #wroteUpToKey}, the maximum key in the</span> |
| <span class="source-line-no">047</span><span id="line-47"> * contiguous range of keys being inserted/updated. This queue is supposed to stay small.</span> |
| <span class="source-line-no">048</span><span id="line-48"> */</span> |
| <span class="source-line-no">049</span><span id="line-49"> protected BlockingQueue<Long> wroteKeys;</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51"> /**</span> |
| <span class="source-line-no">052</span><span id="line-52"> * This is the current key to be inserted/updated by any thread. Each thread does an atomic get</span> |
| <span class="source-line-no">053</span><span id="line-53"> * and increment operation and inserts the current value.</span> |
| <span class="source-line-no">054</span><span id="line-54"> */</span> |
| <span class="source-line-no">055</span><span id="line-55"> protected AtomicLong nextKeyToWrite = new AtomicLong();</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> /**</span> |
| <span class="source-line-no">058</span><span id="line-58"> * The highest key in the contiguous range of keys .</span> |
| <span class="source-line-no">059</span><span id="line-59"> */</span> |
| <span class="source-line-no">060</span><span id="line-60"> protected AtomicLong wroteUpToKey = new AtomicLong();</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> /** The sorted set of keys NOT inserted/updated by the writers */</span> |
| <span class="source-line-no">063</span><span id="line-63"> protected Set<Long> failedKeySet = new ConcurrentSkipListSet<>();</span> |
| <span class="source-line-no">064</span><span id="line-64"></span> |
| <span class="source-line-no">065</span><span id="line-65"> /**</span> |
| <span class="source-line-no">066</span><span id="line-66"> * The total size of the temporary inserted/updated key set that have not yet lined up in a our</span> |
| <span class="source-line-no">067</span><span id="line-67"> * contiguous sequence starting from startKey. Supposed to stay small.</span> |
| <span class="source-line-no">068</span><span id="line-68"> */</span> |
| <span class="source-line-no">069</span><span id="line-69"> protected AtomicLong wroteKeyQueueSize = new AtomicLong();</span> |
| <span class="source-line-no">070</span><span id="line-70"></span> |
| <span class="source-line-no">071</span><span id="line-71"> /** Enable this if used in conjunction with a concurrent reader. */</span> |
| <span class="source-line-no">072</span><span id="line-72"> protected boolean trackWroteKeys;</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> public MultiThreadedWriterBase(LoadTestDataGenerator dataGen, Configuration conf,</span> |
| <span class="source-line-no">075</span><span id="line-75"> TableName tableName, String actionLetter) throws IOException {</span> |
| <span class="source-line-no">076</span><span id="line-76"> super(dataGen, conf, tableName, actionLetter);</span> |
| <span class="source-line-no">077</span><span id="line-77"> this.wroteKeys = createWriteKeysQueue(conf);</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"> protected BlockingQueue<Long> createWriteKeysQueue(Configuration conf) {</span> |
| <span class="source-line-no">081</span><span id="line-81"> return new ArrayBlockingQueue<>(10000);</span> |
| <span class="source-line-no">082</span><span id="line-82"> }</span> |
| <span class="source-line-no">083</span><span id="line-83"></span> |
| <span class="source-line-no">084</span><span id="line-84"> @Override</span> |
| <span class="source-line-no">085</span><span id="line-85"> public void start(long startKey, long endKey, int numThreads) throws IOException {</span> |
| <span class="source-line-no">086</span><span id="line-86"> super.start(startKey, endKey, numThreads);</span> |
| <span class="source-line-no">087</span><span id="line-87"> nextKeyToWrite.set(startKey);</span> |
| <span class="source-line-no">088</span><span id="line-88"> wroteUpToKey.set(startKey - 1);</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> if (trackWroteKeys) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> new Thread(new WroteKeysTracker(),</span> |
| <span class="source-line-no">092</span><span id="line-92"> "MultiThreadedWriterBase-WroteKeysTracker-" + EnvironmentEdgeManager.currentTime()).start();</span> |
| <span class="source-line-no">093</span><span id="line-93"> numThreadsWorking.incrementAndGet();</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"> }</span> |
| <span class="source-line-no">096</span><span id="line-96"></span> |
| <span class="source-line-no">097</span><span id="line-97"> protected String getRegionDebugInfoSafe(Table table, byte[] rowKey) {</span> |
| <span class="source-line-no">098</span><span id="line-98"> HRegionLocation cached = null, real = null;</span> |
| <span class="source-line-no">099</span><span id="line-99"> try (RegionLocator locator = connection.getRegionLocator(tableName)) {</span> |
| <span class="source-line-no">100</span><span id="line-100"> cached = locator.getRegionLocation(rowKey, false);</span> |
| <span class="source-line-no">101</span><span id="line-101"> real = locator.getRegionLocation(rowKey, true);</span> |
| <span class="source-line-no">102</span><span id="line-102"> } catch (Throwable t) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> // Cannot obtain region information for another catch block - too bad!</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"> String result = "no information can be obtained";</span> |
| <span class="source-line-no">106</span><span id="line-106"> if (cached != null) {</span> |
| <span class="source-line-no">107</span><span id="line-107"> result = "cached: " + cached.toString();</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"> if (real != null && real.getServerName() != null) {</span> |
| <span class="source-line-no">110</span><span id="line-110"> if (cached != null && cached.getServerName() != null && real.equals(cached)) {</span> |
| <span class="source-line-no">111</span><span id="line-111"> result += "; cache is up to date";</span> |
| <span class="source-line-no">112</span><span id="line-112"> } else {</span> |
| <span class="source-line-no">113</span><span id="line-113"> result = (cached != null) ? (result + "; ") : "";</span> |
| <span class="source-line-no">114</span><span id="line-114"> result += "real: " + real.toString();</span> |
| <span class="source-line-no">115</span><span id="line-115"> }</span> |
| <span class="source-line-no">116</span><span id="line-116"> }</span> |
| <span class="source-line-no">117</span><span id="line-117"> return result;</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> /**</span> |
| <span class="source-line-no">121</span><span id="line-121"> * A thread that keeps track of the highest key in the contiguous range of inserted/updated keys.</span> |
| <span class="source-line-no">122</span><span id="line-122"> */</span> |
| <span class="source-line-no">123</span><span id="line-123"> private class WroteKeysTracker implements Runnable {</span> |
| <span class="source-line-no">124</span><span id="line-124"></span> |
| <span class="source-line-no">125</span><span id="line-125"> @Override</span> |
| <span class="source-line-no">126</span><span id="line-126"> public void run() {</span> |
| <span class="source-line-no">127</span><span id="line-127"> Thread.currentThread().setName(getClass().getSimpleName());</span> |
| <span class="source-line-no">128</span><span id="line-128"> try {</span> |
| <span class="source-line-no">129</span><span id="line-129"> long expectedKey = startKey;</span> |
| <span class="source-line-no">130</span><span id="line-130"> Queue<Long> sortedKeys = new PriorityQueue<>();</span> |
| <span class="source-line-no">131</span><span id="line-131"> while (expectedKey < endKey) {</span> |
| <span class="source-line-no">132</span><span id="line-132"> // Block until a new element is available.</span> |
| <span class="source-line-no">133</span><span id="line-133"> Long k;</span> |
| <span class="source-line-no">134</span><span id="line-134"> try {</span> |
| <span class="source-line-no">135</span><span id="line-135"> k = wroteKeys.poll(1, TimeUnit.SECONDS);</span> |
| <span class="source-line-no">136</span><span id="line-136"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">137</span><span id="line-137"> LOG.info("Inserted key tracker thread interrupted", e);</span> |
| <span class="source-line-no">138</span><span id="line-138"> break;</span> |
| <span class="source-line-no">139</span><span id="line-139"> }</span> |
| <span class="source-line-no">140</span><span id="line-140"> if (k == null) {</span> |
| <span class="source-line-no">141</span><span id="line-141"> continue;</span> |
| <span class="source-line-no">142</span><span id="line-142"> }</span> |
| <span class="source-line-no">143</span><span id="line-143"> if (k == expectedKey) {</span> |
| <span class="source-line-no">144</span><span id="line-144"> // Skip the "sorted key" queue and consume this key.</span> |
| <span class="source-line-no">145</span><span id="line-145"> wroteUpToKey.set(k);</span> |
| <span class="source-line-no">146</span><span id="line-146"> ++expectedKey;</span> |
| <span class="source-line-no">147</span><span id="line-147"> } else {</span> |
| <span class="source-line-no">148</span><span id="line-148"> sortedKeys.add(k);</span> |
| <span class="source-line-no">149</span><span id="line-149"> }</span> |
| <span class="source-line-no">150</span><span id="line-150"></span> |
| <span class="source-line-no">151</span><span id="line-151"> // See if we have a sequence of contiguous keys lined up.</span> |
| <span class="source-line-no">152</span><span id="line-152"> while (!sortedKeys.isEmpty() && ((k = sortedKeys.peek()) == expectedKey)) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> sortedKeys.poll();</span> |
| <span class="source-line-no">154</span><span id="line-154"> wroteUpToKey.set(k);</span> |
| <span class="source-line-no">155</span><span id="line-155"> ++expectedKey;</span> |
| <span class="source-line-no">156</span><span id="line-156"> }</span> |
| <span class="source-line-no">157</span><span id="line-157"></span> |
| <span class="source-line-no">158</span><span id="line-158"> wroteKeyQueueSize.set(wroteKeys.size() + sortedKeys.size());</span> |
| <span class="source-line-no">159</span><span id="line-159"> }</span> |
| <span class="source-line-no">160</span><span id="line-160"> } catch (Exception ex) {</span> |
| <span class="source-line-no">161</span><span id="line-161"> LOG.error("Error in inserted/updaed key tracker", ex);</span> |
| <span class="source-line-no">162</span><span id="line-162"> } finally {</span> |
| <span class="source-line-no">163</span><span id="line-163"> numThreadsWorking.decrementAndGet();</span> |
| <span class="source-line-no">164</span><span id="line-164"> }</span> |
| <span class="source-line-no">165</span><span id="line-165"> }</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"> public int getNumWriteFailures() {</span> |
| <span class="source-line-no">169</span><span id="line-169"> return failedKeySet.size();</span> |
| <span class="source-line-no">170</span><span id="line-170"> }</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"> * The max key until which all keys have been inserted/updated (successfully or not).</span> |
| <span class="source-line-no">174</span><span id="line-174"> * @return the last key that we have inserted/updated all keys up to (inclusive)</span> |
| <span class="source-line-no">175</span><span id="line-175"> */</span> |
| <span class="source-line-no">176</span><span id="line-176"> public long wroteUpToKey() {</span> |
| <span class="source-line-no">177</span><span id="line-177"> return wroteUpToKey.get();</span> |
| <span class="source-line-no">178</span><span id="line-178"> }</span> |
| <span class="source-line-no">179</span><span id="line-179"></span> |
| <span class="source-line-no">180</span><span id="line-180"> public boolean failedToWriteKey(long k) {</span> |
| <span class="source-line-no">181</span><span id="line-181"> return failedKeySet.contains(k);</span> |
| <span class="source-line-no">182</span><span id="line-182"> }</span> |
| <span class="source-line-no">183</span><span id="line-183"></span> |
| <span class="source-line-no">184</span><span id="line-184"> @Override</span> |
| <span class="source-line-no">185</span><span id="line-185"> protected String progressInfo() {</span> |
| <span class="source-line-no">186</span><span id="line-186"> StringBuilder sb = new StringBuilder();</span> |
| <span class="source-line-no">187</span><span id="line-187"> appendToStatus(sb, "wroteUpTo", wroteUpToKey.get());</span> |
| <span class="source-line-no">188</span><span id="line-188"> appendToStatus(sb, "wroteQSize", wroteKeyQueueSize.get());</span> |
| <span class="source-line-no">189</span><span id="line-189"> return sb.toString();</span> |
| <span class="source-line-no">190</span><span id="line-190"> }</span> |
| <span class="source-line-no">191</span><span id="line-191"></span> |
| <span class="source-line-no">192</span><span id="line-192"> /**</span> |
| <span class="source-line-no">193</span><span id="line-193"> * Used for a joint write/read workload. Enables tracking the last inserted/updated key, which</span> |
| <span class="source-line-no">194</span><span id="line-194"> * requires a blocking queue and a consumer thread.</span> |
| <span class="source-line-no">195</span><span id="line-195"> * @param enable whether to enable tracking the last inserted/updated key</span> |
| <span class="source-line-no">196</span><span id="line-196"> */</span> |
| <span class="source-line-no">197</span><span id="line-197"> public void setTrackWroteKeys(boolean enable) {</span> |
| <span class="source-line-no">198</span><span id="line-198"> trackWroteKeys = enable;</span> |
| <span class="source-line-no">199</span><span id="line-199"> }</span> |
| <span class="source-line-no">200</span><span id="line-200">}</span> |
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