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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.regionserver;</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.ArrayList;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.List;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Random;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.ExtendedCell;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.HBaseTestingUtil;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.KeyValue;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.KeyValueUtil;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.io.hfile.CacheConfig;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.io.hfile.LruBlockCache;</span> |
| <span class="source-line-no">034</span><span id="line-34"></span> |
| <span class="source-line-no">035</span><span id="line-35">/**</span> |
| <span class="source-line-no">036</span><span id="line-36"> * Test seek performance for encoded data blocks. Read an HFile and do several random seeks.</span> |
| <span class="source-line-no">037</span><span id="line-37"> */</span> |
| <span class="source-line-no">038</span><span id="line-38">public class EncodedSeekPerformanceTest {</span> |
| <span class="source-line-no">039</span><span id="line-39"> private static final double NANOSEC_IN_SEC = 1000.0 * 1000.0 * 1000.0;</span> |
| <span class="source-line-no">040</span><span id="line-40"> private static final double BYTES_IN_MEGABYTES = 1024.0 * 1024.0;</span> |
| <span class="source-line-no">041</span><span id="line-41"> /** Default number of seeks which will be used in benchmark. */</span> |
| <span class="source-line-no">042</span><span id="line-42"> public static int DEFAULT_NUMBER_OF_SEEKS = 10000;</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44"> private final HBaseTestingUtil testingUtility = new HBaseTestingUtil();</span> |
| <span class="source-line-no">045</span><span id="line-45"> private Configuration configuration = testingUtility.getConfiguration();</span> |
| <span class="source-line-no">046</span><span id="line-46"> private CacheConfig cacheConf = new CacheConfig(configuration);</span> |
| <span class="source-line-no">047</span><span id="line-47"> private Random randomizer;</span> |
| <span class="source-line-no">048</span><span id="line-48"> private int numberOfSeeks;</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50"> /** Use this benchmark with default options */</span> |
| <span class="source-line-no">051</span><span id="line-51"> public EncodedSeekPerformanceTest() {</span> |
| <span class="source-line-no">052</span><span id="line-52"> configuration.setFloat(HConstants.HFILE_BLOCK_CACHE_SIZE_KEY, 0.5f);</span> |
| <span class="source-line-no">053</span><span id="line-53"> randomizer = new Random(42L);</span> |
| <span class="source-line-no">054</span><span id="line-54"> numberOfSeeks = DEFAULT_NUMBER_OF_SEEKS;</span> |
| <span class="source-line-no">055</span><span id="line-55"> }</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> private List<ExtendedCell> prepareListOfTestSeeks(Path path) throws IOException {</span> |
| <span class="source-line-no">058</span><span id="line-58"> List<ExtendedCell> allKeyValues = new ArrayList<>();</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> // read all of the key values</span> |
| <span class="source-line-no">061</span><span id="line-61"> HStoreFile storeFile = new HStoreFile(testingUtility.getTestFileSystem(), path, configuration,</span> |
| <span class="source-line-no">062</span><span id="line-62"> cacheConf, BloomType.NONE, true);</span> |
| <span class="source-line-no">063</span><span id="line-63"> storeFile.initReader();</span> |
| <span class="source-line-no">064</span><span id="line-64"> StoreFileReader reader = storeFile.getReader();</span> |
| <span class="source-line-no">065</span><span id="line-65"> StoreFileScanner scanner = reader.getStoreFileScanner(true, false, false, 0, 0, false);</span> |
| <span class="source-line-no">066</span><span id="line-66"> ExtendedCell current;</span> |
| <span class="source-line-no">067</span><span id="line-67"></span> |
| <span class="source-line-no">068</span><span id="line-68"> scanner.seek(KeyValue.LOWESTKEY);</span> |
| <span class="source-line-no">069</span><span id="line-69"> while (null != (current = scanner.next())) {</span> |
| <span class="source-line-no">070</span><span id="line-70"> allKeyValues.add(current);</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"> storeFile.closeStoreFile(cacheConf.shouldEvictOnClose());</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> // pick seeks by random</span> |
| <span class="source-line-no">076</span><span id="line-76"> List<ExtendedCell> seeks = new ArrayList<>();</span> |
| <span class="source-line-no">077</span><span id="line-77"> for (int i = 0; i < numberOfSeeks; ++i) {</span> |
| <span class="source-line-no">078</span><span id="line-78"> ExtendedCell keyValue = allKeyValues.get(randomizer.nextInt(allKeyValues.size()));</span> |
| <span class="source-line-no">079</span><span id="line-79"> seeks.add(keyValue);</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> clearBlockCache();</span> |
| <span class="source-line-no">083</span><span id="line-83"></span> |
| <span class="source-line-no">084</span><span id="line-84"> return seeks;</span> |
| <span class="source-line-no">085</span><span id="line-85"> }</span> |
| <span class="source-line-no">086</span><span id="line-86"></span> |
| <span class="source-line-no">087</span><span id="line-87"> private void runTest(Path path, DataBlockEncoding blockEncoding, List<ExtendedCell> seeks)</span> |
| <span class="source-line-no">088</span><span id="line-88"> throws IOException {</span> |
| <span class="source-line-no">089</span><span id="line-89"> // read all of the key values</span> |
| <span class="source-line-no">090</span><span id="line-90"> HStoreFile storeFile = new HStoreFile(testingUtility.getTestFileSystem(), path, configuration,</span> |
| <span class="source-line-no">091</span><span id="line-91"> cacheConf, BloomType.NONE, true);</span> |
| <span class="source-line-no">092</span><span id="line-92"> storeFile.initReader();</span> |
| <span class="source-line-no">093</span><span id="line-93"> long totalSize = 0;</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> StoreFileReader reader = storeFile.getReader();</span> |
| <span class="source-line-no">096</span><span id="line-96"> StoreFileScanner scanner = reader.getStoreFileScanner(true, false, false, 0, 0, false);</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> long startReadingTime = System.nanoTime();</span> |
| <span class="source-line-no">099</span><span id="line-99"> ExtendedCell current;</span> |
| <span class="source-line-no">100</span><span id="line-100"> scanner.seek(KeyValue.LOWESTKEY);</span> |
| <span class="source-line-no">101</span><span id="line-101"> while (null != (current = scanner.next())) { // just iterate it!</span> |
| <span class="source-line-no">102</span><span id="line-102"> if (KeyValueUtil.ensureKeyValue(current).getLength() < 0) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> throw new IOException("Negative KV size: " + current);</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"> totalSize += KeyValueUtil.ensureKeyValue(current).getLength();</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"> long finishReadingTime = System.nanoTime();</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> // do seeks</span> |
| <span class="source-line-no">110</span><span id="line-110"> long startSeeksTime = System.nanoTime();</span> |
| <span class="source-line-no">111</span><span id="line-111"> for (ExtendedCell keyValue : seeks) {</span> |
| <span class="source-line-no">112</span><span id="line-112"> scanner.seek(keyValue);</span> |
| <span class="source-line-no">113</span><span id="line-113"> ExtendedCell toVerify = scanner.next();</span> |
| <span class="source-line-no">114</span><span id="line-114"> if (!keyValue.equals(toVerify)) {</span> |
| <span class="source-line-no">115</span><span id="line-115"> System.out</span> |
| <span class="source-line-no">116</span><span id="line-116"> .println(String.format("KeyValue doesn't match:\n" + "Orig key: %s\n" + "Ret key: %s",</span> |
| <span class="source-line-no">117</span><span id="line-117"> KeyValueUtil.ensureKeyValue(keyValue).getKeyString(),</span> |
| <span class="source-line-no">118</span><span id="line-118"> KeyValueUtil.ensureKeyValue(toVerify).getKeyString()));</span> |
| <span class="source-line-no">119</span><span id="line-119"> break;</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"> long finishSeeksTime = System.nanoTime();</span> |
| <span class="source-line-no">123</span><span id="line-123"> if (finishSeeksTime < startSeeksTime) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> throw new AssertionError(</span> |
| <span class="source-line-no">125</span><span id="line-125"> "Finish time " + finishSeeksTime + " is earlier than start time " + startSeeksTime);</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</span> |
| <span class="source-line-no">127</span><span id="line-127"></span> |
| <span class="source-line-no">128</span><span id="line-128"> // write some stats</span> |
| <span class="source-line-no">129</span><span id="line-129"> double readInMbPerSec =</span> |
| <span class="source-line-no">130</span><span id="line-130"> (totalSize * NANOSEC_IN_SEC) / (BYTES_IN_MEGABYTES * (finishReadingTime - startReadingTime));</span> |
| <span class="source-line-no">131</span><span id="line-131"> double seeksPerSec = (seeks.size() * NANOSEC_IN_SEC) / (finishSeeksTime - startSeeksTime);</span> |
| <span class="source-line-no">132</span><span id="line-132"></span> |
| <span class="source-line-no">133</span><span id="line-133"> storeFile.closeStoreFile(cacheConf.shouldEvictOnClose());</span> |
| <span class="source-line-no">134</span><span id="line-134"> clearBlockCache();</span> |
| <span class="source-line-no">135</span><span id="line-135"></span> |
| <span class="source-line-no">136</span><span id="line-136"> System.out.println(blockEncoding);</span> |
| <span class="source-line-no">137</span><span id="line-137"> System.out.printf(" Read speed: %8.2f (MB/s)\n", readInMbPerSec);</span> |
| <span class="source-line-no">138</span><span id="line-138"> System.out.printf(" Seeks per second: %8.2f (#/s)\n", seeksPerSec);</span> |
| <span class="source-line-no">139</span><span id="line-139"> System.out.printf(" Total KV size: %d\n", totalSize);</span> |
| <span class="source-line-no">140</span><span id="line-140"> }</span> |
| <span class="source-line-no">141</span><span id="line-141"></span> |
| <span class="source-line-no">142</span><span id="line-142"> /**</span> |
| <span class="source-line-no">143</span><span id="line-143"> * @param path Path to the HFile which will be used.</span> |
| <span class="source-line-no">144</span><span id="line-144"> * @param encodings the data block encoding algorithms to use</span> |
| <span class="source-line-no">145</span><span id="line-145"> * @throws IOException if there is a bug while reading from disk</span> |
| <span class="source-line-no">146</span><span id="line-146"> */</span> |
| <span class="source-line-no">147</span><span id="line-147"> public void runTests(Path path, DataBlockEncoding[] encodings) throws IOException {</span> |
| <span class="source-line-no">148</span><span id="line-148"> List<ExtendedCell> seeks = prepareListOfTestSeeks(path);</span> |
| <span class="source-line-no">149</span><span id="line-149"></span> |
| <span class="source-line-no">150</span><span id="line-150"> for (DataBlockEncoding blockEncoding : encodings) {</span> |
| <span class="source-line-no">151</span><span id="line-151"> runTest(path, blockEncoding, seeks);</span> |
| <span class="source-line-no">152</span><span id="line-152"> }</span> |
| <span class="source-line-no">153</span><span id="line-153"> }</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"> * Command line interface:</span> |
| <span class="source-line-no">157</span><span id="line-157"> * @param args Takes one argument - file size.</span> |
| <span class="source-line-no">158</span><span id="line-158"> * @throws IOException if there is a bug while reading from disk</span> |
| <span class="source-line-no">159</span><span id="line-159"> */</span> |
| <span class="source-line-no">160</span><span id="line-160"> public static void main(final String[] args) throws IOException {</span> |
| <span class="source-line-no">161</span><span id="line-161"> if (args.length < 1) {</span> |
| <span class="source-line-no">162</span><span id="line-162"> printUsage();</span> |
| <span class="source-line-no">163</span><span id="line-163"> System.exit(-1);</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"> Path path = new Path(args[0]);</span> |
| <span class="source-line-no">167</span><span id="line-167"></span> |
| <span class="source-line-no">168</span><span id="line-168"> // TODO, this test doesn't work as expected any more. Need to fix.</span> |
| <span class="source-line-no">169</span><span id="line-169"> EncodedSeekPerformanceTest utility = new EncodedSeekPerformanceTest();</span> |
| <span class="source-line-no">170</span><span id="line-170"> utility.runTests(path, DataBlockEncoding.values());</span> |
| <span class="source-line-no">171</span><span id="line-171"></span> |
| <span class="source-line-no">172</span><span id="line-172"> System.exit(0);</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"></span> |
| <span class="source-line-no">175</span><span id="line-175"> private static void printUsage() {</span> |
| <span class="source-line-no">176</span><span id="line-176"> System.out.println("Usage: one argument, name of the HFile");</span> |
| <span class="source-line-no">177</span><span id="line-177"> }</span> |
| <span class="source-line-no">178</span><span id="line-178"></span> |
| <span class="source-line-no">179</span><span id="line-179"> private void clearBlockCache() {</span> |
| <span class="source-line-no">180</span><span id="line-180"> ((LruBlockCache) cacheConf.getBlockCache().get()).clearCache();</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182">}</span> |
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| </pre> |
| </div> |
| </main> |
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