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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.Arrays;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.HashSet;</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 java.util.Set;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.concurrent.ThreadLocalRandom;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.concurrent.atomic.AtomicLong;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HRegionLocation;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.client.Consistency;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.client.Get;</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.Result;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.client.Table;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.util.test.LoadTestDataGenerator;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.slf4j.Logger;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40">/** Creates multiple threads that read and verify previously written data */</span> |
| <span class="source-line-no">041</span><span id="line-41">@InterfaceAudience.Private</span> |
| <span class="source-line-no">042</span><span id="line-42">public class MultiThreadedReader extends MultiThreadedAction {</span> |
| <span class="source-line-no">043</span><span id="line-43"> private static final Logger LOG = LoggerFactory.getLogger(MultiThreadedReader.class);</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> protected Set<HBaseReaderThread> readers = new HashSet<>();</span> |
| <span class="source-line-no">046</span><span id="line-46"> private final double verifyPercent;</span> |
| <span class="source-line-no">047</span><span id="line-47"> protected volatile boolean aborted;</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 MultiThreadedWriterBase writer = null;</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"> * The number of keys verified in a sequence. This will never be larger than the total number of</span> |
| <span class="source-line-no">053</span><span id="line-53"> * keys in the range. The reader might also verify random keys when it catches up with the writer.</span> |
| <span class="source-line-no">054</span><span id="line-54"> */</span> |
| <span class="source-line-no">055</span><span id="line-55"> private final AtomicLong numUniqueKeysVerified = 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"> * Default maximum number of read errors to tolerate before shutting down all readers.</span> |
| <span class="source-line-no">059</span><span id="line-59"> */</span> |
| <span class="source-line-no">060</span><span id="line-60"> public static final int DEFAULT_MAX_ERRORS = 10;</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> /**</span> |
| <span class="source-line-no">063</span><span id="line-63"> * Default "window" size between the last key written by the writer and the key that we attempt to</span> |
| <span class="source-line-no">064</span><span id="line-64"> * read. The lower this number, the stricter our testing is. If this is zero, we always attempt to</span> |
| <span class="source-line-no">065</span><span id="line-65"> * read the highest key in the contiguous sequence of keys written by the writers.</span> |
| <span class="source-line-no">066</span><span id="line-66"> */</span> |
| <span class="source-line-no">067</span><span id="line-67"> public static final int DEFAULT_KEY_WINDOW = 0;</span> |
| <span class="source-line-no">068</span><span id="line-68"></span> |
| <span class="source-line-no">069</span><span id="line-69"> /**</span> |
| <span class="source-line-no">070</span><span id="line-70"> * Default batch size for multigets</span> |
| <span class="source-line-no">071</span><span id="line-71"> */</span> |
| <span class="source-line-no">072</span><span id="line-72"> public static final int DEFAULT_BATCH_SIZE = 1; // translates to simple GET (no multi GET)</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> protected AtomicLong numKeysVerified = new AtomicLong(0);</span> |
| <span class="source-line-no">075</span><span id="line-75"> protected AtomicLong numReadErrors = new AtomicLong(0);</span> |
| <span class="source-line-no">076</span><span id="line-76"> protected AtomicLong numReadFailures = new AtomicLong(0);</span> |
| <span class="source-line-no">077</span><span id="line-77"> protected AtomicLong nullResult = new AtomicLong(0);</span> |
| <span class="source-line-no">078</span><span id="line-78"> private int maxErrors = DEFAULT_MAX_ERRORS;</span> |
| <span class="source-line-no">079</span><span id="line-79"> private int keyWindow = DEFAULT_KEY_WINDOW;</span> |
| <span class="source-line-no">080</span><span id="line-80"> private int batchSize = DEFAULT_BATCH_SIZE;</span> |
| <span class="source-line-no">081</span><span id="line-81"> private int regionReplicaId = -1; // particular region replica id to do reads against if set</span> |
| <span class="source-line-no">082</span><span id="line-82"></span> |
| <span class="source-line-no">083</span><span id="line-83"> public MultiThreadedReader(LoadTestDataGenerator dataGen, Configuration conf, TableName tableName,</span> |
| <span class="source-line-no">084</span><span id="line-84"> double verifyPercent) throws IOException {</span> |
| <span class="source-line-no">085</span><span id="line-85"> super(dataGen, conf, tableName, "R");</span> |
| <span class="source-line-no">086</span><span id="line-86"> this.verifyPercent = verifyPercent;</span> |
| <span class="source-line-no">087</span><span id="line-87"> }</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> public void linkToWriter(MultiThreadedWriterBase writer) {</span> |
| <span class="source-line-no">090</span><span id="line-90"> this.writer = writer;</span> |
| <span class="source-line-no">091</span><span id="line-91"> writer.setTrackWroteKeys(true);</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> public void setMaxErrors(int maxErrors) {</span> |
| <span class="source-line-no">095</span><span id="line-95"> this.maxErrors = maxErrors;</span> |
| <span class="source-line-no">096</span><span id="line-96"> }</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> public void setKeyWindow(int keyWindow) {</span> |
| <span class="source-line-no">099</span><span id="line-99"> this.keyWindow = keyWindow;</span> |
| <span class="source-line-no">100</span><span id="line-100"> }</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> public void setMultiGetBatchSize(int batchSize) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> this.batchSize = batchSize;</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"></span> |
| <span class="source-line-no">106</span><span id="line-106"> public void setRegionReplicaId(int regionReplicaId) {</span> |
| <span class="source-line-no">107</span><span id="line-107"> this.regionReplicaId = regionReplicaId;</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> @Override</span> |
| <span class="source-line-no">111</span><span id="line-111"> public void start(long startKey, long endKey, int numThreads) throws IOException {</span> |
| <span class="source-line-no">112</span><span id="line-112"> super.start(startKey, endKey, numThreads);</span> |
| <span class="source-line-no">113</span><span id="line-113"> if (verbose) {</span> |
| <span class="source-line-no">114</span><span id="line-114"> LOG.debug("Reading keys [" + startKey + ", " + endKey + ")");</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"> addReaderThreads(numThreads);</span> |
| <span class="source-line-no">118</span><span id="line-118"> startThreads(readers);</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"> protected void addReaderThreads(int numThreads) throws IOException {</span> |
| <span class="source-line-no">122</span><span id="line-122"> for (int i = 0; i < numThreads; ++i) {</span> |
| <span class="source-line-no">123</span><span id="line-123"> HBaseReaderThread reader = createReaderThread(i);</span> |
| <span class="source-line-no">124</span><span id="line-124"> readers.add(reader);</span> |
| <span class="source-line-no">125</span><span id="line-125"> }</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"> protected HBaseReaderThread createReaderThread(int readerId) throws IOException {</span> |
| <span class="source-line-no">129</span><span id="line-129"> HBaseReaderThread reader = new HBaseReaderThread(readerId);</span> |
| <span class="source-line-no">130</span><span id="line-130"> Threads.setLoggingUncaughtExceptionHandler(reader);</span> |
| <span class="source-line-no">131</span><span id="line-131"> return reader;</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"></span> |
| <span class="source-line-no">134</span><span id="line-134"> public class HBaseReaderThread extends Thread {</span> |
| <span class="source-line-no">135</span><span id="line-135"> protected final int readerId;</span> |
| <span class="source-line-no">136</span><span id="line-136"> protected final Table table;</span> |
| <span class="source-line-no">137</span><span id="line-137"></span> |
| <span class="source-line-no">138</span><span id="line-138"> /** The "current" key being read. Increases from startKey to endKey. */</span> |
| <span class="source-line-no">139</span><span id="line-139"> private long curKey;</span> |
| <span class="source-line-no">140</span><span id="line-140"></span> |
| <span class="source-line-no">141</span><span id="line-141"> /** Time when the thread started */</span> |
| <span class="source-line-no">142</span><span id="line-142"> protected long startTimeMs;</span> |
| <span class="source-line-no">143</span><span id="line-143"></span> |
| <span class="source-line-no">144</span><span id="line-144"> /** If we are ahead of the writer and reading a random key. */</span> |
| <span class="source-line-no">145</span><span id="line-145"> private boolean readingRandomKey;</span> |
| <span class="source-line-no">146</span><span id="line-146"></span> |
| <span class="source-line-no">147</span><span id="line-147"> private boolean printExceptionTrace = true;</span> |
| <span class="source-line-no">148</span><span id="line-148"></span> |
| <span class="source-line-no">149</span><span id="line-149"> /**</span> |
| <span class="source-line-no">150</span><span id="line-150"> * @param readerId only the keys with this remainder from division by {@link #numThreads} will</span> |
| <span class="source-line-no">151</span><span id="line-151"> * be read by this thread</span> |
| <span class="source-line-no">152</span><span id="line-152"> */</span> |
| <span class="source-line-no">153</span><span id="line-153"> public HBaseReaderThread(int readerId) throws IOException {</span> |
| <span class="source-line-no">154</span><span id="line-154"> this.readerId = readerId;</span> |
| <span class="source-line-no">155</span><span id="line-155"> table = createTable();</span> |
| <span class="source-line-no">156</span><span id="line-156"> setName(getClass().getSimpleName() + "_" + readerId);</span> |
| <span class="source-line-no">157</span><span id="line-157"> }</span> |
| <span class="source-line-no">158</span><span id="line-158"></span> |
| <span class="source-line-no">159</span><span id="line-159"> protected Table createTable() throws IOException {</span> |
| <span class="source-line-no">160</span><span id="line-160"> return connection.getTable(tableName);</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"></span> |
| <span class="source-line-no">163</span><span id="line-163"> @Override</span> |
| <span class="source-line-no">164</span><span id="line-164"> public void run() {</span> |
| <span class="source-line-no">165</span><span id="line-165"> try {</span> |
| <span class="source-line-no">166</span><span id="line-166"> runReader();</span> |
| <span class="source-line-no">167</span><span id="line-167"> } finally {</span> |
| <span class="source-line-no">168</span><span id="line-168"> closeTable();</span> |
| <span class="source-line-no">169</span><span id="line-169"> numThreadsWorking.decrementAndGet();</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"> protected void closeTable() {</span> |
| <span class="source-line-no">174</span><span id="line-174"> try {</span> |
| <span class="source-line-no">175</span><span id="line-175"> if (table != null) {</span> |
| <span class="source-line-no">176</span><span id="line-176"> table.close();</span> |
| <span class="source-line-no">177</span><span id="line-177"> }</span> |
| <span class="source-line-no">178</span><span id="line-178"> } catch (IOException e) {</span> |
| <span class="source-line-no">179</span><span id="line-179"> LOG.error("Error closing table", e);</span> |
| <span class="source-line-no">180</span><span id="line-180"> }</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> |
| <span class="source-line-no">183</span><span id="line-183"> private void runReader() {</span> |
| <span class="source-line-no">184</span><span id="line-184"> if (verbose) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> LOG.info("Started thread #" + readerId + " for reads...");</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"></span> |
| <span class="source-line-no">188</span><span id="line-188"> startTimeMs = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">189</span><span id="line-189"> curKey = startKey;</span> |
| <span class="source-line-no">190</span><span id="line-190"> long[] keysForThisReader = new long[batchSize];</span> |
| <span class="source-line-no">191</span><span id="line-191"> while (curKey < endKey && !aborted) {</span> |
| <span class="source-line-no">192</span><span id="line-192"> int readingRandomKeyStartIndex = -1;</span> |
| <span class="source-line-no">193</span><span id="line-193"> int numKeys = 0;</span> |
| <span class="source-line-no">194</span><span id="line-194"> // if multiGet, loop until we have the number of keys equal to the batch size</span> |
| <span class="source-line-no">195</span><span id="line-195"> do {</span> |
| <span class="source-line-no">196</span><span id="line-196"> long k = getNextKeyToRead();</span> |
| <span class="source-line-no">197</span><span id="line-197"> if (k < startKey || k >= endKey) {</span> |
| <span class="source-line-no">198</span><span id="line-198"> numReadErrors.incrementAndGet();</span> |
| <span class="source-line-no">199</span><span id="line-199"> throw new AssertionError("Load tester logic error: proposed key " + "to read " + k</span> |
| <span class="source-line-no">200</span><span id="line-200"> + " is out of range (startKey=" + startKey + ", endKey=" + endKey + ")");</span> |
| <span class="source-line-no">201</span><span id="line-201"> }</span> |
| <span class="source-line-no">202</span><span id="line-202"> if (k % numThreads != readerId || (writer != null && writer.failedToWriteKey(k))) {</span> |
| <span class="source-line-no">203</span><span id="line-203"> // Skip keys that this thread should not read, as well as the keys</span> |
| <span class="source-line-no">204</span><span id="line-204"> // that we know the writer failed to write.</span> |
| <span class="source-line-no">205</span><span id="line-205"> continue;</span> |
| <span class="source-line-no">206</span><span id="line-206"> }</span> |
| <span class="source-line-no">207</span><span id="line-207"> keysForThisReader[numKeys] = k;</span> |
| <span class="source-line-no">208</span><span id="line-208"> if (readingRandomKey && readingRandomKeyStartIndex == -1) {</span> |
| <span class="source-line-no">209</span><span id="line-209"> // store the first index of a random read</span> |
| <span class="source-line-no">210</span><span id="line-210"> readingRandomKeyStartIndex = numKeys;</span> |
| <span class="source-line-no">211</span><span id="line-211"> }</span> |
| <span class="source-line-no">212</span><span id="line-212"> numKeys++;</span> |
| <span class="source-line-no">213</span><span id="line-213"> } while (numKeys < batchSize && curKey < endKey && !aborted);</span> |
| <span class="source-line-no">214</span><span id="line-214"></span> |
| <span class="source-line-no">215</span><span id="line-215"> if (numKeys > 0) { // meaning there is some key to read</span> |
| <span class="source-line-no">216</span><span id="line-216"> readKey(keysForThisReader);</span> |
| <span class="source-line-no">217</span><span id="line-217"> // We have verified some unique key(s).</span> |
| <span class="source-line-no">218</span><span id="line-218"> numUniqueKeysVerified</span> |
| <span class="source-line-no">219</span><span id="line-219"> .getAndAdd(readingRandomKeyStartIndex == -1 ? numKeys : readingRandomKeyStartIndex);</span> |
| <span class="source-line-no">220</span><span id="line-220"> }</span> |
| <span class="source-line-no">221</span><span id="line-221"> }</span> |
| <span class="source-line-no">222</span><span id="line-222"> }</span> |
| <span class="source-line-no">223</span><span id="line-223"></span> |
| <span class="source-line-no">224</span><span id="line-224"> /**</span> |
| <span class="source-line-no">225</span><span id="line-225"> * Should only be used for the concurrent writer/reader workload. The maximum key we are allowed</span> |
| <span class="source-line-no">226</span><span id="line-226"> * to read, subject to the "key window" constraint.</span> |
| <span class="source-line-no">227</span><span id="line-227"> */</span> |
| <span class="source-line-no">228</span><span id="line-228"> private long maxKeyWeCanRead() {</span> |
| <span class="source-line-no">229</span><span id="line-229"> long insertedUpToKey = writer.wroteUpToKey();</span> |
| <span class="source-line-no">230</span><span id="line-230"> if (insertedUpToKey >= endKey - 1) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> // The writer has finished writing our range, so we can read any</span> |
| <span class="source-line-no">232</span><span id="line-232"> // key in the range.</span> |
| <span class="source-line-no">233</span><span id="line-233"> return endKey - 1;</span> |
| <span class="source-line-no">234</span><span id="line-234"> }</span> |
| <span class="source-line-no">235</span><span id="line-235"> return Math.min(endKey - 1, writer.wroteUpToKey() - keyWindow);</span> |
| <span class="source-line-no">236</span><span id="line-236"> }</span> |
| <span class="source-line-no">237</span><span id="line-237"></span> |
| <span class="source-line-no">238</span><span id="line-238"> protected long getNextKeyToRead() {</span> |
| <span class="source-line-no">239</span><span id="line-239"> readingRandomKey = false;</span> |
| <span class="source-line-no">240</span><span id="line-240"> if (writer == null || curKey <= maxKeyWeCanRead()) {</span> |
| <span class="source-line-no">241</span><span id="line-241"> return curKey++;</span> |
| <span class="source-line-no">242</span><span id="line-242"> }</span> |
| <span class="source-line-no">243</span><span id="line-243"></span> |
| <span class="source-line-no">244</span><span id="line-244"> // We caught up with the writer. See if we can read any keys at all.</span> |
| <span class="source-line-no">245</span><span id="line-245"> long maxKeyToRead;</span> |
| <span class="source-line-no">246</span><span id="line-246"> while ((maxKeyToRead = maxKeyWeCanRead()) < startKey) {</span> |
| <span class="source-line-no">247</span><span id="line-247"> // The writer has not written sufficient keys for us to be able to read</span> |
| <span class="source-line-no">248</span><span id="line-248"> // anything at all. Sleep a bit. This should only happen in the</span> |
| <span class="source-line-no">249</span><span id="line-249"> // beginning of a load test run.</span> |
| <span class="source-line-no">250</span><span id="line-250"> Threads.sleepWithoutInterrupt(50);</span> |
| <span class="source-line-no">251</span><span id="line-251"> }</span> |
| <span class="source-line-no">252</span><span id="line-252"></span> |
| <span class="source-line-no">253</span><span id="line-253"> if (curKey <= maxKeyToRead) {</span> |
| <span class="source-line-no">254</span><span id="line-254"> // The writer wrote some keys, and we are now allowed to read our</span> |
| <span class="source-line-no">255</span><span id="line-255"> // current key.</span> |
| <span class="source-line-no">256</span><span id="line-256"> return curKey++;</span> |
| <span class="source-line-no">257</span><span id="line-257"> }</span> |
| <span class="source-line-no">258</span><span id="line-258"></span> |
| <span class="source-line-no">259</span><span id="line-259"> // startKey <= maxKeyToRead <= curKey - 1. Read one of the previous keys.</span> |
| <span class="source-line-no">260</span><span id="line-260"> // Don't increment the current key -- we still have to try reading it</span> |
| <span class="source-line-no">261</span><span id="line-261"> // later. Set a flag to make sure that we don't count this key towards</span> |
| <span class="source-line-no">262</span><span id="line-262"> // the set of unique keys we have verified.</span> |
| <span class="source-line-no">263</span><span id="line-263"> readingRandomKey = true;</span> |
| <span class="source-line-no">264</span><span id="line-264"> return startKey</span> |
| <span class="source-line-no">265</span><span id="line-265"> + Math.abs(ThreadLocalRandom.current().nextLong()) % (maxKeyToRead - startKey + 1);</span> |
| <span class="source-line-no">266</span><span id="line-266"> }</span> |
| <span class="source-line-no">267</span><span id="line-267"></span> |
| <span class="source-line-no">268</span><span id="line-268"> private Get[] readKey(long[] keysToRead) {</span> |
| <span class="source-line-no">269</span><span id="line-269"> Random rand = ThreadLocalRandom.current();</span> |
| <span class="source-line-no">270</span><span id="line-270"> Get[] gets = new Get[keysToRead.length];</span> |
| <span class="source-line-no">271</span><span id="line-271"> int i = 0;</span> |
| <span class="source-line-no">272</span><span id="line-272"> for (long keyToRead : keysToRead) {</span> |
| <span class="source-line-no">273</span><span id="line-273"> try {</span> |
| <span class="source-line-no">274</span><span id="line-274"> gets[i] = createGet(keyToRead);</span> |
| <span class="source-line-no">275</span><span id="line-275"> if (keysToRead.length == 1) {</span> |
| <span class="source-line-no">276</span><span id="line-276"> queryKey(gets[i], rand.nextInt(100) < verifyPercent, keyToRead);</span> |
| <span class="source-line-no">277</span><span id="line-277"> }</span> |
| <span class="source-line-no">278</span><span id="line-278"> i++;</span> |
| <span class="source-line-no">279</span><span id="line-279"> } catch (IOException e) {</span> |
| <span class="source-line-no">280</span><span id="line-280"> numReadFailures.addAndGet(1);</span> |
| <span class="source-line-no">281</span><span id="line-281"> LOG.debug("[" + readerId + "] FAILED read, key = " + (keyToRead + "")</span> |
| <span class="source-line-no">282</span><span id="line-282"> + ", time from start: " + (EnvironmentEdgeManager.currentTime() - startTimeMs) + " ms");</span> |
| <span class="source-line-no">283</span><span id="line-283"> if (printExceptionTrace) {</span> |
| <span class="source-line-no">284</span><span id="line-284"> LOG.warn(e.toString(), e);</span> |
| <span class="source-line-no">285</span><span id="line-285"> printExceptionTrace = false;</span> |
| <span class="source-line-no">286</span><span id="line-286"> }</span> |
| <span class="source-line-no">287</span><span id="line-287"> }</span> |
| <span class="source-line-no">288</span><span id="line-288"> }</span> |
| <span class="source-line-no">289</span><span id="line-289"> if (keysToRead.length > 1) {</span> |
| <span class="source-line-no">290</span><span id="line-290"> try {</span> |
| <span class="source-line-no">291</span><span id="line-291"> queryKey(gets, rand.nextInt(100) < verifyPercent, keysToRead);</span> |
| <span class="source-line-no">292</span><span id="line-292"> } catch (IOException e) {</span> |
| <span class="source-line-no">293</span><span id="line-293"> numReadFailures.addAndGet(gets.length);</span> |
| <span class="source-line-no">294</span><span id="line-294"> for (long keyToRead : keysToRead) {</span> |
| <span class="source-line-no">295</span><span id="line-295"> LOG.debug(</span> |
| <span class="source-line-no">296</span><span id="line-296"> "[" + readerId + "] FAILED read, key = " + (keyToRead + "") + ", time from start: "</span> |
| <span class="source-line-no">297</span><span id="line-297"> + (EnvironmentEdgeManager.currentTime() - startTimeMs) + " ms");</span> |
| <span class="source-line-no">298</span><span id="line-298"> }</span> |
| <span class="source-line-no">299</span><span id="line-299"> if (printExceptionTrace) {</span> |
| <span class="source-line-no">300</span><span id="line-300"> LOG.warn(e.toString(), e);</span> |
| <span class="source-line-no">301</span><span id="line-301"> printExceptionTrace = false;</span> |
| <span class="source-line-no">302</span><span id="line-302"> }</span> |
| <span class="source-line-no">303</span><span id="line-303"> }</span> |
| <span class="source-line-no">304</span><span id="line-304"> }</span> |
| <span class="source-line-no">305</span><span id="line-305"> return gets;</span> |
| <span class="source-line-no">306</span><span id="line-306"> }</span> |
| <span class="source-line-no">307</span><span id="line-307"></span> |
| <span class="source-line-no">308</span><span id="line-308"> protected Get createGet(long keyToRead) throws IOException {</span> |
| <span class="source-line-no">309</span><span id="line-309"> Get get = new Get(dataGenerator.getDeterministicUniqueKey(keyToRead));</span> |
| <span class="source-line-no">310</span><span id="line-310"> StringBuilder cfsString = new StringBuilder();</span> |
| <span class="source-line-no">311</span><span id="line-311"> byte[][] columnFamilies = dataGenerator.getColumnFamilies();</span> |
| <span class="source-line-no">312</span><span id="line-312"> for (byte[] cf : columnFamilies) {</span> |
| <span class="source-line-no">313</span><span id="line-313"> get.addFamily(cf);</span> |
| <span class="source-line-no">314</span><span id="line-314"> if (verbose) {</span> |
| <span class="source-line-no">315</span><span id="line-315"> if (cfsString.length() > 0) {</span> |
| <span class="source-line-no">316</span><span id="line-316"> cfsString.append(", ");</span> |
| <span class="source-line-no">317</span><span id="line-317"> }</span> |
| <span class="source-line-no">318</span><span id="line-318"> cfsString.append("[").append(Bytes.toStringBinary(cf)).append("]");</span> |
| <span class="source-line-no">319</span><span id="line-319"> }</span> |
| <span class="source-line-no">320</span><span id="line-320"> }</span> |
| <span class="source-line-no">321</span><span id="line-321"> get = dataGenerator.beforeGet(keyToRead, get);</span> |
| <span class="source-line-no">322</span><span id="line-322"> if (regionReplicaId > 0) {</span> |
| <span class="source-line-no">323</span><span id="line-323"> get.setReplicaId(regionReplicaId);</span> |
| <span class="source-line-no">324</span><span id="line-324"> get.setConsistency(Consistency.TIMELINE);</span> |
| <span class="source-line-no">325</span><span id="line-325"> }</span> |
| <span class="source-line-no">326</span><span id="line-326"> if (verbose) {</span> |
| <span class="source-line-no">327</span><span id="line-327"> LOG.info("[{}] Querying key {}, cfs {}", readerId, keyToRead, cfsString.toString());</span> |
| <span class="source-line-no">328</span><span id="line-328"> }</span> |
| <span class="source-line-no">329</span><span id="line-329"> return get;</span> |
| <span class="source-line-no">330</span><span id="line-330"> }</span> |
| <span class="source-line-no">331</span><span id="line-331"></span> |
| <span class="source-line-no">332</span><span id="line-332"> public void queryKey(Get[] gets, boolean verify, long[] keysToRead) throws IOException {</span> |
| <span class="source-line-no">333</span><span id="line-333"> // read the data</span> |
| <span class="source-line-no">334</span><span id="line-334"> long start = System.nanoTime();</span> |
| <span class="source-line-no">335</span><span id="line-335"> // Uses multi/batch gets</span> |
| <span class="source-line-no">336</span><span id="line-336"> Result[] results = table.get(Arrays.asList(gets));</span> |
| <span class="source-line-no">337</span><span id="line-337"> long end = System.nanoTime();</span> |
| <span class="source-line-no">338</span><span id="line-338"> verifyResultsAndUpdateMetrics(verify, gets, end - start, results, table, false);</span> |
| <span class="source-line-no">339</span><span id="line-339"> }</span> |
| <span class="source-line-no">340</span><span id="line-340"></span> |
| <span class="source-line-no">341</span><span id="line-341"> public void queryKey(Get get, boolean verify, long keyToRead) throws IOException {</span> |
| <span class="source-line-no">342</span><span id="line-342"> // read the data</span> |
| <span class="source-line-no">343</span><span id="line-343"></span> |
| <span class="source-line-no">344</span><span id="line-344"> long start = System.nanoTime();</span> |
| <span class="source-line-no">345</span><span id="line-345"> // Uses simple get</span> |
| <span class="source-line-no">346</span><span id="line-346"> Result result = table.get(get);</span> |
| <span class="source-line-no">347</span><span id="line-347"> long end = System.nanoTime();</span> |
| <span class="source-line-no">348</span><span id="line-348"> verifyResultsAndUpdateMetrics(verify, get, end - start, result, table, false);</span> |
| <span class="source-line-no">349</span><span id="line-349"> }</span> |
| <span class="source-line-no">350</span><span id="line-350"></span> |
| <span class="source-line-no">351</span><span id="line-351"> protected void verifyResultsAndUpdateMetrics(boolean verify, Get[] gets, long elapsedNano,</span> |
| <span class="source-line-no">352</span><span id="line-352"> Result[] results, Table table, boolean isNullExpected) throws IOException {</span> |
| <span class="source-line-no">353</span><span id="line-353"> totalOpTimeMs.addAndGet(elapsedNano / 1000000);</span> |
| <span class="source-line-no">354</span><span id="line-354"> numKeys.addAndGet(gets.length);</span> |
| <span class="source-line-no">355</span><span id="line-355"> int i = 0;</span> |
| <span class="source-line-no">356</span><span id="line-356"> for (Result result : results) {</span> |
| <span class="source-line-no">357</span><span id="line-357"> verifyResultsAndUpdateMetricsOnAPerGetBasis(verify, gets[i++], result, table,</span> |
| <span class="source-line-no">358</span><span id="line-358"> isNullExpected);</span> |
| <span class="source-line-no">359</span><span id="line-359"> }</span> |
| <span class="source-line-no">360</span><span id="line-360"> }</span> |
| <span class="source-line-no">361</span><span id="line-361"></span> |
| <span class="source-line-no">362</span><span id="line-362"> protected void verifyResultsAndUpdateMetrics(boolean verify, Get get, long elapsedNano,</span> |
| <span class="source-line-no">363</span><span id="line-363"> Result result, Table table, boolean isNullExpected) throws IOException {</span> |
| <span class="source-line-no">364</span><span id="line-364"> verifyResultsAndUpdateMetrics(verify, new Get[] { get }, elapsedNano, new Result[] { result },</span> |
| <span class="source-line-no">365</span><span id="line-365"> table, isNullExpected);</span> |
| <span class="source-line-no">366</span><span id="line-366"> }</span> |
| <span class="source-line-no">367</span><span id="line-367"></span> |
| <span class="source-line-no">368</span><span id="line-368"> private void verifyResultsAndUpdateMetricsOnAPerGetBasis(boolean verify, Get get, Result result,</span> |
| <span class="source-line-no">369</span><span id="line-369"> Table table, boolean isNullExpected) throws IOException {</span> |
| <span class="source-line-no">370</span><span id="line-370"> if (!result.isEmpty()) {</span> |
| <span class="source-line-no">371</span><span id="line-371"> if (verify) {</span> |
| <span class="source-line-no">372</span><span id="line-372"> numKeysVerified.incrementAndGet();</span> |
| <span class="source-line-no">373</span><span id="line-373"> }</span> |
| <span class="source-line-no">374</span><span id="line-374"> } else {</span> |
| <span class="source-line-no">375</span><span id="line-375"> HRegionLocation hloc;</span> |
| <span class="source-line-no">376</span><span id="line-376"> try (RegionLocator locator = connection.getRegionLocator(tableName)) {</span> |
| <span class="source-line-no">377</span><span id="line-377"> hloc = locator.getRegionLocation(get.getRow());</span> |
| <span class="source-line-no">378</span><span id="line-378"> }</span> |
| <span class="source-line-no">379</span><span id="line-379"> String rowKey = Bytes.toString(get.getRow());</span> |
| <span class="source-line-no">380</span><span id="line-380"> LOG.info("Key = " + rowKey + ", Region location: " + hloc);</span> |
| <span class="source-line-no">381</span><span id="line-381"> if (isNullExpected) {</span> |
| <span class="source-line-no">382</span><span id="line-382"> nullResult.incrementAndGet();</span> |
| <span class="source-line-no">383</span><span id="line-383"> LOG.debug("Null result obtained for the key =" + rowKey);</span> |
| <span class="source-line-no">384</span><span id="line-384"> return;</span> |
| <span class="source-line-no">385</span><span id="line-385"> }</span> |
| <span class="source-line-no">386</span><span id="line-386"> }</span> |
| <span class="source-line-no">387</span><span id="line-387"> boolean isOk = verifyResultAgainstDataGenerator(result, verify, false);</span> |
| <span class="source-line-no">388</span><span id="line-388"> long numErrorsAfterThis = 0;</span> |
| <span class="source-line-no">389</span><span id="line-389"> if (isOk) {</span> |
| <span class="source-line-no">390</span><span id="line-390"> long cols = 0;</span> |
| <span class="source-line-no">391</span><span id="line-391"> // Count the columns for reporting purposes.</span> |
| <span class="source-line-no">392</span><span id="line-392"> for (byte[] cf : result.getMap().keySet()) {</span> |
| <span class="source-line-no">393</span><span id="line-393"> cols += result.getFamilyMap(cf).size();</span> |
| <span class="source-line-no">394</span><span id="line-394"> }</span> |
| <span class="source-line-no">395</span><span id="line-395"> numCols.addAndGet(cols);</span> |
| <span class="source-line-no">396</span><span id="line-396"> } else {</span> |
| <span class="source-line-no">397</span><span id="line-397"> if (writer != null) {</span> |
| <span class="source-line-no">398</span><span id="line-398"> LOG.error("At the time of failure, writer wrote " + writer.numKeys.get() + " keys");</span> |
| <span class="source-line-no">399</span><span id="line-399"> }</span> |
| <span class="source-line-no">400</span><span id="line-400"> numErrorsAfterThis = numReadErrors.incrementAndGet();</span> |
| <span class="source-line-no">401</span><span id="line-401"> }</span> |
| <span class="source-line-no">402</span><span id="line-402"></span> |
| <span class="source-line-no">403</span><span id="line-403"> if (numErrorsAfterThis > maxErrors) {</span> |
| <span class="source-line-no">404</span><span id="line-404"> LOG.error("Aborting readers -- found more than " + maxErrors + " errors");</span> |
| <span class="source-line-no">405</span><span id="line-405"> aborted = true;</span> |
| <span class="source-line-no">406</span><span id="line-406"> }</span> |
| <span class="source-line-no">407</span><span id="line-407"> }</span> |
| <span class="source-line-no">408</span><span id="line-408"> }</span> |
| <span class="source-line-no">409</span><span id="line-409"></span> |
| <span class="source-line-no">410</span><span id="line-410"> public long getNumReadFailures() {</span> |
| <span class="source-line-no">411</span><span id="line-411"> return numReadFailures.get();</span> |
| <span class="source-line-no">412</span><span id="line-412"> }</span> |
| <span class="source-line-no">413</span><span id="line-413"></span> |
| <span class="source-line-no">414</span><span id="line-414"> public long getNumReadErrors() {</span> |
| <span class="source-line-no">415</span><span id="line-415"> return numReadErrors.get();</span> |
| <span class="source-line-no">416</span><span id="line-416"> }</span> |
| <span class="source-line-no">417</span><span id="line-417"></span> |
| <span class="source-line-no">418</span><span id="line-418"> public long getNumKeysVerified() {</span> |
| <span class="source-line-no">419</span><span id="line-419"> return numKeysVerified.get();</span> |
| <span class="source-line-no">420</span><span id="line-420"> }</span> |
| <span class="source-line-no">421</span><span id="line-421"></span> |
| <span class="source-line-no">422</span><span id="line-422"> public long getNumUniqueKeysVerified() {</span> |
| <span class="source-line-no">423</span><span id="line-423"> return numUniqueKeysVerified.get();</span> |
| <span class="source-line-no">424</span><span id="line-424"> }</span> |
| <span class="source-line-no">425</span><span id="line-425"></span> |
| <span class="source-line-no">426</span><span id="line-426"> public long getNullResultsCount() {</span> |
| <span class="source-line-no">427</span><span id="line-427"> return nullResult.get();</span> |
| <span class="source-line-no">428</span><span id="line-428"> }</span> |
| <span class="source-line-no">429</span><span id="line-429"></span> |
| <span class="source-line-no">430</span><span id="line-430"> @Override</span> |
| <span class="source-line-no">431</span><span id="line-431"> protected String progressInfo() {</span> |
| <span class="source-line-no">432</span><span id="line-432"> StringBuilder sb = new StringBuilder();</span> |
| <span class="source-line-no">433</span><span id="line-433"> appendToStatus(sb, "verified", numKeysVerified.get());</span> |
| <span class="source-line-no">434</span><span id="line-434"> appendToStatus(sb, "READ FAILURES", numReadFailures.get());</span> |
| <span class="source-line-no">435</span><span id="line-435"> appendToStatus(sb, "READ ERRORS", numReadErrors.get());</span> |
| <span class="source-line-no">436</span><span id="line-436"> appendToStatus(sb, "NULL RESULT", nullResult.get());</span> |
| <span class="source-line-no">437</span><span id="line-437"> return sb.toString();</span> |
| <span class="source-line-no">438</span><span id="line-438"> }</span> |
| <span class="source-line-no">439</span><span id="line-439">}</span> |
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| </div> |
| </main> |
| </body> |
| </html> |
