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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.util.ConcurrentMapUtils.computeIfAbsent;</span> |
| <span class="source-line-no">021</span><span id="line-21"></span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.InterruptedIOException;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.ArrayList;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.Collection;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.HashMap;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.HashSet;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.List;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.Map;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.Set;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.TreeSet;</span> |
| <span class="source-line-no">031</span><span id="line-31">import java.util.concurrent.ConcurrentHashMap;</span> |
| <span class="source-line-no">032</span><span id="line-32">import java.util.concurrent.ConcurrentMap;</span> |
| <span class="source-line-no">033</span><span id="line-33">import java.util.concurrent.ConcurrentSkipListMap;</span> |
| <span class="source-line-no">034</span><span id="line-34">import java.util.concurrent.atomic.AtomicInteger;</span> |
| <span class="source-line-no">035</span><span id="line-35">import java.util.concurrent.atomic.AtomicLong;</span> |
| <span class="source-line-no">036</span><span id="line-36">import java.util.function.Consumer;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.HRegionLocation;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.ServerName;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.util.EnvironmentEdge;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.apache.yetus.audience.InterfaceStability;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.slf4j.Logger;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49">/**</span> |
| <span class="source-line-no">050</span><span id="line-50"> * Holds back the requests if they reach any thresholds.</span> |
| <span class="source-line-no">051</span><span id="line-51"> */</span> |
| <span class="source-line-no">052</span><span id="line-52">@InterfaceAudience.Private</span> |
| <span class="source-line-no">053</span><span id="line-53">@InterfaceStability.Evolving</span> |
| <span class="source-line-no">054</span><span id="line-54">class SimpleRequestController implements RequestController {</span> |
| <span class="source-line-no">055</span><span id="line-55"> private static final Logger LOG = LoggerFactory.getLogger(SimpleRequestController.class);</span> |
| <span class="source-line-no">056</span><span id="line-56"> /**</span> |
| <span class="source-line-no">057</span><span id="line-57"> * The maximum heap size for each request.</span> |
| <span class="source-line-no">058</span><span id="line-58"> */</span> |
| <span class="source-line-no">059</span><span id="line-59"> public static final String HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE =</span> |
| <span class="source-line-no">060</span><span id="line-60"> "hbase.client.max.perrequest.heapsize";</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 value of {@link #HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE}.</span> |
| <span class="source-line-no">064</span><span id="line-64"> */</span> |
| <span class="source-line-no">065</span><span id="line-65"> static final long DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE = 4194304;</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67"> /**</span> |
| <span class="source-line-no">068</span><span id="line-68"> * The maximum number of rows for each request.</span> |
| <span class="source-line-no">069</span><span id="line-69"> */</span> |
| <span class="source-line-no">070</span><span id="line-70"> public static final String HBASE_CLIENT_MAX_PERREQUEST_ROWS = "hbase.client.max.perrequest.rows";</span> |
| <span class="source-line-no">071</span><span id="line-71"> /**</span> |
| <span class="source-line-no">072</span><span id="line-72"> * Default value of {@link #HBASE_CLIENT_MAX_PERREQUEST_ROWS}.</span> |
| <span class="source-line-no">073</span><span id="line-73"> */</span> |
| <span class="source-line-no">074</span><span id="line-74"> static final long DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_ROWS = 2048;</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> /**</span> |
| <span class="source-line-no">077</span><span id="line-77"> * The maximum size of submit.</span> |
| <span class="source-line-no">078</span><span id="line-78"> */</span> |
| <span class="source-line-no">079</span><span id="line-79"> public static final String HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE = "hbase.client.max.submit.heapsize";</span> |
| <span class="source-line-no">080</span><span id="line-80"> /**</span> |
| <span class="source-line-no">081</span><span id="line-81"> * Default value of {@link #HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE}.</span> |
| <span class="source-line-no">082</span><span id="line-82"> */</span> |
| <span class="source-line-no">083</span><span id="line-83"> static final long DEFAULT_HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE =</span> |
| <span class="source-line-no">084</span><span id="line-84"> DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE;</span> |
| <span class="source-line-no">085</span><span id="line-85"> final AtomicLong tasksInProgress = new AtomicLong(0);</span> |
| <span class="source-line-no">086</span><span id="line-86"> final ConcurrentMap<byte[], AtomicInteger> taskCounterPerRegion =</span> |
| <span class="source-line-no">087</span><span id="line-87"> new ConcurrentSkipListMap<>(Bytes.BYTES_COMPARATOR);</span> |
| <span class="source-line-no">088</span><span id="line-88"> final ConcurrentMap<ServerName, AtomicInteger> taskCounterPerServer = new ConcurrentHashMap<>();</span> |
| <span class="source-line-no">089</span><span id="line-89"> /**</span> |
| <span class="source-line-no">090</span><span id="line-90"> * The number of tasks simultaneously executed on the cluster.</span> |
| <span class="source-line-no">091</span><span id="line-91"> */</span> |
| <span class="source-line-no">092</span><span id="line-92"> private final int maxTotalConcurrentTasks;</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> /**</span> |
| <span class="source-line-no">095</span><span id="line-95"> * The maximum heap size for each request.</span> |
| <span class="source-line-no">096</span><span id="line-96"> */</span> |
| <span class="source-line-no">097</span><span id="line-97"> private final long maxHeapSizePerRequest;</span> |
| <span class="source-line-no">098</span><span id="line-98"> /**</span> |
| <span class="source-line-no">099</span><span id="line-99"> * The maximum number of rows for each request.</span> |
| <span class="source-line-no">100</span><span id="line-100"> */</span> |
| <span class="source-line-no">101</span><span id="line-101"> private final long maxRowsPerRequest;</span> |
| <span class="source-line-no">102</span><span id="line-102"> private final long maxHeapSizeSubmit;</span> |
| <span class="source-line-no">103</span><span id="line-103"> /**</span> |
| <span class="source-line-no">104</span><span id="line-104"> * The number of tasks we run in parallel on a single region. With 1 (the default) , we ensure</span> |
| <span class="source-line-no">105</span><span id="line-105"> * that the ordering of the queries is respected: we don't start a set of operations on a region</span> |
| <span class="source-line-no">106</span><span id="line-106"> * before the previous one is done. As well, this limits the pressure we put on the region server.</span> |
| <span class="source-line-no">107</span><span id="line-107"> */</span> |
| <span class="source-line-no">108</span><span id="line-108"> final int maxConcurrentTasksPerRegion;</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> /**</span> |
| <span class="source-line-no">111</span><span id="line-111"> * The number of task simultaneously executed on a single region server.</span> |
| <span class="source-line-no">112</span><span id="line-112"> */</span> |
| <span class="source-line-no">113</span><span id="line-113"> final int maxConcurrentTasksPerServer;</span> |
| <span class="source-line-no">114</span><span id="line-114"> private final int thresholdToLogUndoneTaskDetails;</span> |
| <span class="source-line-no">115</span><span id="line-115"> public static final String THRESHOLD_TO_LOG_UNDONE_TASK_DETAILS =</span> |
| <span class="source-line-no">116</span><span id="line-116"> "hbase.client.threshold.log.details";</span> |
| <span class="source-line-no">117</span><span id="line-117"> private static final int DEFAULT_THRESHOLD_TO_LOG_UNDONE_TASK_DETAILS = 10;</span> |
| <span class="source-line-no">118</span><span id="line-118"> public static final String THRESHOLD_TO_LOG_REGION_DETAILS =</span> |
| <span class="source-line-no">119</span><span id="line-119"> "hbase.client.threshold.log.region.details";</span> |
| <span class="source-line-no">120</span><span id="line-120"> private static final int DEFAULT_THRESHOLD_TO_LOG_REGION_DETAILS = 2;</span> |
| <span class="source-line-no">121</span><span id="line-121"> private final int thresholdToLogRegionDetails;</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> SimpleRequestController(final Configuration conf) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> this.maxTotalConcurrentTasks = checkAndGet(conf, HConstants.HBASE_CLIENT_MAX_TOTAL_TASKS,</span> |
| <span class="source-line-no">125</span><span id="line-125"> HConstants.DEFAULT_HBASE_CLIENT_MAX_TOTAL_TASKS);</span> |
| <span class="source-line-no">126</span><span id="line-126"> this.maxConcurrentTasksPerServer =</span> |
| <span class="source-line-no">127</span><span id="line-127"> checkAndGet(conf, HConstants.HBASE_CLIENT_MAX_PERSERVER_TASKS,</span> |
| <span class="source-line-no">128</span><span id="line-128"> HConstants.DEFAULT_HBASE_CLIENT_MAX_PERSERVER_TASKS);</span> |
| <span class="source-line-no">129</span><span id="line-129"> this.maxConcurrentTasksPerRegion =</span> |
| <span class="source-line-no">130</span><span id="line-130"> checkAndGet(conf, HConstants.HBASE_CLIENT_MAX_PERREGION_TASKS,</span> |
| <span class="source-line-no">131</span><span id="line-131"> HConstants.DEFAULT_HBASE_CLIENT_MAX_PERREGION_TASKS);</span> |
| <span class="source-line-no">132</span><span id="line-132"> this.maxHeapSizePerRequest = checkAndGet(conf, HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE,</span> |
| <span class="source-line-no">133</span><span id="line-133"> DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_HEAPSIZE);</span> |
| <span class="source-line-no">134</span><span id="line-134"> this.maxRowsPerRequest =</span> |
| <span class="source-line-no">135</span><span id="line-135"> checkAndGet(conf, HBASE_CLIENT_MAX_PERREQUEST_ROWS, DEFAULT_HBASE_CLIENT_MAX_PERREQUEST_ROWS);</span> |
| <span class="source-line-no">136</span><span id="line-136"> this.maxHeapSizeSubmit =</span> |
| <span class="source-line-no">137</span><span id="line-137"> checkAndGet(conf, HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE, DEFAULT_HBASE_CLIENT_MAX_SUBMIT_HEAPSIZE);</span> |
| <span class="source-line-no">138</span><span id="line-138"> this.thresholdToLogUndoneTaskDetails = conf.getInt(THRESHOLD_TO_LOG_UNDONE_TASK_DETAILS,</span> |
| <span class="source-line-no">139</span><span id="line-139"> DEFAULT_THRESHOLD_TO_LOG_UNDONE_TASK_DETAILS);</span> |
| <span class="source-line-no">140</span><span id="line-140"> this.thresholdToLogRegionDetails =</span> |
| <span class="source-line-no">141</span><span id="line-141"> conf.getInt(THRESHOLD_TO_LOG_REGION_DETAILS, DEFAULT_THRESHOLD_TO_LOG_REGION_DETAILS);</span> |
| <span class="source-line-no">142</span><span id="line-142"> }</span> |
| <span class="source-line-no">143</span><span id="line-143"></span> |
| <span class="source-line-no">144</span><span id="line-144"> private static int checkAndGet(Configuration conf, String key, int defaultValue) {</span> |
| <span class="source-line-no">145</span><span id="line-145"> int value = conf.getInt(key, defaultValue);</span> |
| <span class="source-line-no">146</span><span id="line-146"> if (value <= 0) {</span> |
| <span class="source-line-no">147</span><span id="line-147"> throw new IllegalArgumentException(key + "=" + value);</span> |
| <span class="source-line-no">148</span><span id="line-148"> }</span> |
| <span class="source-line-no">149</span><span id="line-149"> return value;</span> |
| <span class="source-line-no">150</span><span id="line-150"> }</span> |
| <span class="source-line-no">151</span><span id="line-151"></span> |
| <span class="source-line-no">152</span><span id="line-152"> private static long checkAndGet(Configuration conf, String key, long defaultValue) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> long value = conf.getLong(key, defaultValue);</span> |
| <span class="source-line-no">154</span><span id="line-154"> if (value <= 0) {</span> |
| <span class="source-line-no">155</span><span id="line-155"> throw new IllegalArgumentException(key + "=" + value);</span> |
| <span class="source-line-no">156</span><span id="line-156"> }</span> |
| <span class="source-line-no">157</span><span id="line-157"> return value;</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"> static Checker newChecker(List<RowChecker> checkers) {</span> |
| <span class="source-line-no">161</span><span id="line-161"> return new Checker() {</span> |
| <span class="source-line-no">162</span><span id="line-162"> private boolean isEnd = false;</span> |
| <span class="source-line-no">163</span><span id="line-163"></span> |
| <span class="source-line-no">164</span><span id="line-164"> @Override</span> |
| <span class="source-line-no">165</span><span id="line-165"> public ReturnCode canTakeRow(HRegionLocation loc, Row row) {</span> |
| <span class="source-line-no">166</span><span id="line-166"> if (isEnd) {</span> |
| <span class="source-line-no">167</span><span id="line-167"> return ReturnCode.END;</span> |
| <span class="source-line-no">168</span><span id="line-168"> }</span> |
| <span class="source-line-no">169</span><span id="line-169"> long heapSizeOfRow = (row instanceof Mutation) ? ((Mutation) row).heapSize() : 0;</span> |
| <span class="source-line-no">170</span><span id="line-170"> ReturnCode code = ReturnCode.INCLUDE;</span> |
| <span class="source-line-no">171</span><span id="line-171"> for (RowChecker checker : checkers) {</span> |
| <span class="source-line-no">172</span><span id="line-172"> switch (checker.canTakeOperation(loc, heapSizeOfRow)) {</span> |
| <span class="source-line-no">173</span><span id="line-173"> case END:</span> |
| <span class="source-line-no">174</span><span id="line-174"> isEnd = true;</span> |
| <span class="source-line-no">175</span><span id="line-175"> code = ReturnCode.END;</span> |
| <span class="source-line-no">176</span><span id="line-176"> break;</span> |
| <span class="source-line-no">177</span><span id="line-177"> case SKIP:</span> |
| <span class="source-line-no">178</span><span id="line-178"> code = ReturnCode.SKIP;</span> |
| <span class="source-line-no">179</span><span id="line-179"> break;</span> |
| <span class="source-line-no">180</span><span id="line-180"> case INCLUDE:</span> |
| <span class="source-line-no">181</span><span id="line-181"> default:</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"> if (code == ReturnCode.END) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> break;</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"> for (RowChecker checker : checkers) {</span> |
| <span class="source-line-no">189</span><span id="line-189"> checker.notifyFinal(code, loc, heapSizeOfRow);</span> |
| <span class="source-line-no">190</span><span id="line-190"> }</span> |
| <span class="source-line-no">191</span><span id="line-191"> return code;</span> |
| <span class="source-line-no">192</span><span id="line-192"> }</span> |
| <span class="source-line-no">193</span><span id="line-193"></span> |
| <span class="source-line-no">194</span><span id="line-194"> @Override</span> |
| <span class="source-line-no">195</span><span id="line-195"> public void reset() throws InterruptedIOException {</span> |
| <span class="source-line-no">196</span><span id="line-196"> isEnd = false;</span> |
| <span class="source-line-no">197</span><span id="line-197"> InterruptedIOException e = null;</span> |
| <span class="source-line-no">198</span><span id="line-198"> for (RowChecker checker : checkers) {</span> |
| <span class="source-line-no">199</span><span id="line-199"> try {</span> |
| <span class="source-line-no">200</span><span id="line-200"> checker.reset();</span> |
| <span class="source-line-no">201</span><span id="line-201"> } catch (InterruptedIOException ex) {</span> |
| <span class="source-line-no">202</span><span id="line-202"> e = ex;</span> |
| <span class="source-line-no">203</span><span id="line-203"> }</span> |
| <span class="source-line-no">204</span><span id="line-204"> }</span> |
| <span class="source-line-no">205</span><span id="line-205"> if (e != null) {</span> |
| <span class="source-line-no">206</span><span id="line-206"> throw e;</span> |
| <span class="source-line-no">207</span><span id="line-207"> }</span> |
| <span class="source-line-no">208</span><span id="line-208"> }</span> |
| <span class="source-line-no">209</span><span id="line-209"> };</span> |
| <span class="source-line-no">210</span><span id="line-210"> }</span> |
| <span class="source-line-no">211</span><span id="line-211"></span> |
| <span class="source-line-no">212</span><span id="line-212"> @Override</span> |
| <span class="source-line-no">213</span><span id="line-213"> public Checker newChecker() {</span> |
| <span class="source-line-no">214</span><span id="line-214"> List<RowChecker> checkers = new ArrayList<>(4);</span> |
| <span class="source-line-no">215</span><span id="line-215"> checkers.add(new TaskCountChecker(maxTotalConcurrentTasks, maxConcurrentTasksPerServer,</span> |
| <span class="source-line-no">216</span><span id="line-216"> maxConcurrentTasksPerRegion, tasksInProgress, taskCounterPerServer, taskCounterPerRegion));</span> |
| <span class="source-line-no">217</span><span id="line-217"> checkers.add(new RequestHeapSizeChecker(maxHeapSizePerRequest));</span> |
| <span class="source-line-no">218</span><span id="line-218"> checkers.add(new SubmittedSizeChecker(maxHeapSizeSubmit));</span> |
| <span class="source-line-no">219</span><span id="line-219"> checkers.add(new RequestRowsChecker(maxRowsPerRequest));</span> |
| <span class="source-line-no">220</span><span id="line-220"> return newChecker(checkers);</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"> @Override</span> |
| <span class="source-line-no">224</span><span id="line-224"> public void incTaskCounters(Collection<byte[]> regions, ServerName sn) {</span> |
| <span class="source-line-no">225</span><span id="line-225"> tasksInProgress.incrementAndGet();</span> |
| <span class="source-line-no">226</span><span id="line-226"></span> |
| <span class="source-line-no">227</span><span id="line-227"> computeIfAbsent(taskCounterPerServer, sn, AtomicInteger::new).incrementAndGet();</span> |
| <span class="source-line-no">228</span><span id="line-228"></span> |
| <span class="source-line-no">229</span><span id="line-229"> regions</span> |
| <span class="source-line-no">230</span><span id="line-230"> .forEach((regBytes) -> computeIfAbsent(taskCounterPerRegion, regBytes, AtomicInteger::new)</span> |
| <span class="source-line-no">231</span><span id="line-231"> .incrementAndGet());</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233"></span> |
| <span class="source-line-no">234</span><span id="line-234"> @Override</span> |
| <span class="source-line-no">235</span><span id="line-235"> public void decTaskCounters(Collection<byte[]> regions, ServerName sn) {</span> |
| <span class="source-line-no">236</span><span id="line-236"> regions.forEach(regBytes -> {</span> |
| <span class="source-line-no">237</span><span id="line-237"> AtomicInteger regionCnt = taskCounterPerRegion.get(regBytes);</span> |
| <span class="source-line-no">238</span><span id="line-238"> regionCnt.decrementAndGet();</span> |
| <span class="source-line-no">239</span><span id="line-239"> });</span> |
| <span class="source-line-no">240</span><span id="line-240"></span> |
| <span class="source-line-no">241</span><span id="line-241"> taskCounterPerServer.get(sn).decrementAndGet();</span> |
| <span class="source-line-no">242</span><span id="line-242"> tasksInProgress.decrementAndGet();</span> |
| <span class="source-line-no">243</span><span id="line-243"> synchronized (tasksInProgress) {</span> |
| <span class="source-line-no">244</span><span id="line-244"> tasksInProgress.notifyAll();</span> |
| <span class="source-line-no">245</span><span id="line-245"> }</span> |
| <span class="source-line-no">246</span><span id="line-246"> }</span> |
| <span class="source-line-no">247</span><span id="line-247"></span> |
| <span class="source-line-no">248</span><span id="line-248"> @Override</span> |
| <span class="source-line-no">249</span><span id="line-249"> public long getNumberOfTasksInProgress() {</span> |
| <span class="source-line-no">250</span><span id="line-250"> return tasksInProgress.get();</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"> @Override</span> |
| <span class="source-line-no">254</span><span id="line-254"> public void waitForMaximumCurrentTasks(long max, long id, int periodToTrigger,</span> |
| <span class="source-line-no">255</span><span id="line-255"> Consumer<Long> trigger) throws InterruptedIOException {</span> |
| <span class="source-line-no">256</span><span id="line-256"> assert max >= 0;</span> |
| <span class="source-line-no">257</span><span id="line-257"> long lastLog = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">258</span><span id="line-258"> long currentInProgress, oldInProgress = Long.MAX_VALUE;</span> |
| <span class="source-line-no">259</span><span id="line-259"> while ((currentInProgress = tasksInProgress.get()) > max) {</span> |
| <span class="source-line-no">260</span><span id="line-260"> if (oldInProgress != currentInProgress) { // Wait for in progress to change.</span> |
| <span class="source-line-no">261</span><span id="line-261"> long now = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">262</span><span id="line-262"> if (now > lastLog + periodToTrigger) {</span> |
| <span class="source-line-no">263</span><span id="line-263"> lastLog = now;</span> |
| <span class="source-line-no">264</span><span id="line-264"> if (trigger != null) {</span> |
| <span class="source-line-no">265</span><span id="line-265"> trigger.accept(currentInProgress);</span> |
| <span class="source-line-no">266</span><span id="line-266"> }</span> |
| <span class="source-line-no">267</span><span id="line-267"> logDetailsOfUndoneTasks(currentInProgress);</span> |
| <span class="source-line-no">268</span><span id="line-268"> }</span> |
| <span class="source-line-no">269</span><span id="line-269"> }</span> |
| <span class="source-line-no">270</span><span id="line-270"> oldInProgress = currentInProgress;</span> |
| <span class="source-line-no">271</span><span id="line-271"> try {</span> |
| <span class="source-line-no">272</span><span id="line-272"> synchronized (tasksInProgress) {</span> |
| <span class="source-line-no">273</span><span id="line-273"> if (tasksInProgress.get() == oldInProgress) {</span> |
| <span class="source-line-no">274</span><span id="line-274"> tasksInProgress.wait(10);</span> |
| <span class="source-line-no">275</span><span id="line-275"> }</span> |
| <span class="source-line-no">276</span><span id="line-276"> }</span> |
| <span class="source-line-no">277</span><span id="line-277"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">278</span><span id="line-278"> throw new InterruptedIOException(</span> |
| <span class="source-line-no">279</span><span id="line-279"> "#" + id + ", interrupted." + " currentNumberOfTask=" + currentInProgress);</span> |
| <span class="source-line-no">280</span><span id="line-280"> }</span> |
| <span class="source-line-no">281</span><span id="line-281"> }</span> |
| <span class="source-line-no">282</span><span id="line-282"> }</span> |
| <span class="source-line-no">283</span><span id="line-283"></span> |
| <span class="source-line-no">284</span><span id="line-284"> private void logDetailsOfUndoneTasks(long taskInProgress) {</span> |
| <span class="source-line-no">285</span><span id="line-285"> if (taskInProgress <= thresholdToLogUndoneTaskDetails) {</span> |
| <span class="source-line-no">286</span><span id="line-286"> ArrayList<ServerName> servers = new ArrayList<>();</span> |
| <span class="source-line-no">287</span><span id="line-287"> for (Map.Entry<ServerName, AtomicInteger> entry : taskCounterPerServer.entrySet()) {</span> |
| <span class="source-line-no">288</span><span id="line-288"> if (entry.getValue().get() > 0) {</span> |
| <span class="source-line-no">289</span><span id="line-289"> servers.add(entry.getKey());</span> |
| <span class="source-line-no">290</span><span id="line-290"> }</span> |
| <span class="source-line-no">291</span><span id="line-291"> }</span> |
| <span class="source-line-no">292</span><span id="line-292"> LOG.info("Left over " + taskInProgress + " task(s) are processed on server(s): " + servers);</span> |
| <span class="source-line-no">293</span><span id="line-293"> }</span> |
| <span class="source-line-no">294</span><span id="line-294"></span> |
| <span class="source-line-no">295</span><span id="line-295"> if (taskInProgress <= thresholdToLogRegionDetails) {</span> |
| <span class="source-line-no">296</span><span id="line-296"> ArrayList<String> regions = new ArrayList<>();</span> |
| <span class="source-line-no">297</span><span id="line-297"> for (Map.Entry<byte[], AtomicInteger> entry : taskCounterPerRegion.entrySet()) {</span> |
| <span class="source-line-no">298</span><span id="line-298"> if (entry.getValue().get() > 0) {</span> |
| <span class="source-line-no">299</span><span id="line-299"> regions.add(Bytes.toString(entry.getKey()));</span> |
| <span class="source-line-no">300</span><span id="line-300"> }</span> |
| <span class="source-line-no">301</span><span id="line-301"> }</span> |
| <span class="source-line-no">302</span><span id="line-302"> LOG.info("Regions against which left over task(s) are processed: " + regions);</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"></span> |
| <span class="source-line-no">306</span><span id="line-306"> @Override</span> |
| <span class="source-line-no">307</span><span id="line-307"> public void waitForFreeSlot(long id, int periodToTrigger, Consumer<Long> trigger)</span> |
| <span class="source-line-no">308</span><span id="line-308"> throws InterruptedIOException {</span> |
| <span class="source-line-no">309</span><span id="line-309"> waitForMaximumCurrentTasks(maxTotalConcurrentTasks - 1, id, periodToTrigger, trigger);</span> |
| <span class="source-line-no">310</span><span id="line-310"> }</span> |
| <span class="source-line-no">311</span><span id="line-311"></span> |
| <span class="source-line-no">312</span><span id="line-312"> /**</span> |
| <span class="source-line-no">313</span><span id="line-313"> * limit the heapsize of total submitted data. Reduce the limit of heapsize for submitting quickly</span> |
| <span class="source-line-no">314</span><span id="line-314"> * if there is no running task.</span> |
| <span class="source-line-no">315</span><span id="line-315"> */</span> |
| <span class="source-line-no">316</span><span id="line-316"> static class SubmittedSizeChecker implements RowChecker {</span> |
| <span class="source-line-no">317</span><span id="line-317"></span> |
| <span class="source-line-no">318</span><span id="line-318"> private final long maxHeapSizeSubmit;</span> |
| <span class="source-line-no">319</span><span id="line-319"> private long heapSize = 0;</span> |
| <span class="source-line-no">320</span><span id="line-320"></span> |
| <span class="source-line-no">321</span><span id="line-321"> SubmittedSizeChecker(final long maxHeapSizeSubmit) {</span> |
| <span class="source-line-no">322</span><span id="line-322"> this.maxHeapSizeSubmit = maxHeapSizeSubmit;</span> |
| <span class="source-line-no">323</span><span id="line-323"> }</span> |
| <span class="source-line-no">324</span><span id="line-324"></span> |
| <span class="source-line-no">325</span><span id="line-325"> @Override</span> |
| <span class="source-line-no">326</span><span id="line-326"> public ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow) {</span> |
| <span class="source-line-no">327</span><span id="line-327"> if (heapSize >= maxHeapSizeSubmit) {</span> |
| <span class="source-line-no">328</span><span id="line-328"> return ReturnCode.END;</span> |
| <span class="source-line-no">329</span><span id="line-329"> }</span> |
| <span class="source-line-no">330</span><span id="line-330"> return ReturnCode.INCLUDE;</span> |
| <span class="source-line-no">331</span><span id="line-331"> }</span> |
| <span class="source-line-no">332</span><span id="line-332"></span> |
| <span class="source-line-no">333</span><span id="line-333"> @Override</span> |
| <span class="source-line-no">334</span><span id="line-334"> public void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow) {</span> |
| <span class="source-line-no">335</span><span id="line-335"> if (code == ReturnCode.INCLUDE) {</span> |
| <span class="source-line-no">336</span><span id="line-336"> heapSize += heapSizeOfRow;</span> |
| <span class="source-line-no">337</span><span id="line-337"> }</span> |
| <span class="source-line-no">338</span><span id="line-338"> }</span> |
| <span class="source-line-no">339</span><span id="line-339"></span> |
| <span class="source-line-no">340</span><span id="line-340"> @Override</span> |
| <span class="source-line-no">341</span><span id="line-341"> public void reset() {</span> |
| <span class="source-line-no">342</span><span id="line-342"> heapSize = 0;</span> |
| <span class="source-line-no">343</span><span id="line-343"> }</span> |
| <span class="source-line-no">344</span><span id="line-344"> }</span> |
| <span class="source-line-no">345</span><span id="line-345"></span> |
| <span class="source-line-no">346</span><span id="line-346"> /**</span> |
| <span class="source-line-no">347</span><span id="line-347"> * limit the max number of tasks in an AsyncProcess.</span> |
| <span class="source-line-no">348</span><span id="line-348"> */</span> |
| <span class="source-line-no">349</span><span id="line-349"> static class TaskCountChecker implements RowChecker {</span> |
| <span class="source-line-no">350</span><span id="line-350"></span> |
| <span class="source-line-no">351</span><span id="line-351"> private static final long MAX_WAITING_TIME = 1000; // ms</span> |
| <span class="source-line-no">352</span><span id="line-352"> private final Set<RegionInfo> regionsIncluded = new HashSet<>();</span> |
| <span class="source-line-no">353</span><span id="line-353"> private final Set<ServerName> serversIncluded = new HashSet<>();</span> |
| <span class="source-line-no">354</span><span id="line-354"> private final int maxConcurrentTasksPerRegion;</span> |
| <span class="source-line-no">355</span><span id="line-355"> private final int maxTotalConcurrentTasks;</span> |
| <span class="source-line-no">356</span><span id="line-356"> private final int maxConcurrentTasksPerServer;</span> |
| <span class="source-line-no">357</span><span id="line-357"> private final Map<byte[], AtomicInteger> taskCounterPerRegion;</span> |
| <span class="source-line-no">358</span><span id="line-358"> private final Map<ServerName, AtomicInteger> taskCounterPerServer;</span> |
| <span class="source-line-no">359</span><span id="line-359"> private final Set<byte[]> busyRegions = new TreeSet<>(Bytes.BYTES_COMPARATOR);</span> |
| <span class="source-line-no">360</span><span id="line-360"> private final AtomicLong tasksInProgress;</span> |
| <span class="source-line-no">361</span><span id="line-361"></span> |
| <span class="source-line-no">362</span><span id="line-362"> TaskCountChecker(final int maxTotalConcurrentTasks, final int maxConcurrentTasksPerServer,</span> |
| <span class="source-line-no">363</span><span id="line-363"> final int maxConcurrentTasksPerRegion, final AtomicLong tasksInProgress,</span> |
| <span class="source-line-no">364</span><span id="line-364"> final Map<ServerName, AtomicInteger> taskCounterPerServer,</span> |
| <span class="source-line-no">365</span><span id="line-365"> final Map<byte[], AtomicInteger> taskCounterPerRegion) {</span> |
| <span class="source-line-no">366</span><span id="line-366"> this.maxTotalConcurrentTasks = maxTotalConcurrentTasks;</span> |
| <span class="source-line-no">367</span><span id="line-367"> this.maxConcurrentTasksPerRegion = maxConcurrentTasksPerRegion;</span> |
| <span class="source-line-no">368</span><span id="line-368"> this.maxConcurrentTasksPerServer = maxConcurrentTasksPerServer;</span> |
| <span class="source-line-no">369</span><span id="line-369"> this.taskCounterPerRegion = taskCounterPerRegion;</span> |
| <span class="source-line-no">370</span><span id="line-370"> this.taskCounterPerServer = taskCounterPerServer;</span> |
| <span class="source-line-no">371</span><span id="line-371"> this.tasksInProgress = tasksInProgress;</span> |
| <span class="source-line-no">372</span><span id="line-372"> }</span> |
| <span class="source-line-no">373</span><span id="line-373"></span> |
| <span class="source-line-no">374</span><span id="line-374"> @Override</span> |
| <span class="source-line-no">375</span><span id="line-375"> public void reset() throws InterruptedIOException {</span> |
| <span class="source-line-no">376</span><span id="line-376"> // prevent the busy-waiting</span> |
| <span class="source-line-no">377</span><span id="line-377"> waitForRegion();</span> |
| <span class="source-line-no">378</span><span id="line-378"> regionsIncluded.clear();</span> |
| <span class="source-line-no">379</span><span id="line-379"> serversIncluded.clear();</span> |
| <span class="source-line-no">380</span><span id="line-380"> busyRegions.clear();</span> |
| <span class="source-line-no">381</span><span id="line-381"> }</span> |
| <span class="source-line-no">382</span><span id="line-382"></span> |
| <span class="source-line-no">383</span><span id="line-383"> private void waitForRegion() throws InterruptedIOException {</span> |
| <span class="source-line-no">384</span><span id="line-384"> if (busyRegions.isEmpty()) {</span> |
| <span class="source-line-no">385</span><span id="line-385"> return;</span> |
| <span class="source-line-no">386</span><span id="line-386"> }</span> |
| <span class="source-line-no">387</span><span id="line-387"> EnvironmentEdge ee = EnvironmentEdgeManager.getDelegate();</span> |
| <span class="source-line-no">388</span><span id="line-388"> final long start = ee.currentTime();</span> |
| <span class="source-line-no">389</span><span id="line-389"> while ((ee.currentTime() - start) <= MAX_WAITING_TIME) {</span> |
| <span class="source-line-no">390</span><span id="line-390"> for (byte[] region : busyRegions) {</span> |
| <span class="source-line-no">391</span><span id="line-391"> AtomicInteger count = taskCounterPerRegion.get(region);</span> |
| <span class="source-line-no">392</span><span id="line-392"> if (count == null || count.get() < maxConcurrentTasksPerRegion) {</span> |
| <span class="source-line-no">393</span><span id="line-393"> return;</span> |
| <span class="source-line-no">394</span><span id="line-394"> }</span> |
| <span class="source-line-no">395</span><span id="line-395"> }</span> |
| <span class="source-line-no">396</span><span id="line-396"> try {</span> |
| <span class="source-line-no">397</span><span id="line-397"> synchronized (tasksInProgress) {</span> |
| <span class="source-line-no">398</span><span id="line-398"> tasksInProgress.wait(10);</span> |
| <span class="source-line-no">399</span><span id="line-399"> }</span> |
| <span class="source-line-no">400</span><span id="line-400"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">401</span><span id="line-401"> throw new InterruptedIOException("Interrupted." + " tasksInProgress=" + tasksInProgress);</span> |
| <span class="source-line-no">402</span><span id="line-402"> }</span> |
| <span class="source-line-no">403</span><span id="line-403"> }</span> |
| <span class="source-line-no">404</span><span id="line-404"> }</span> |
| <span class="source-line-no">405</span><span id="line-405"></span> |
| <span class="source-line-no">406</span><span id="line-406"> /**</span> |
| <span class="source-line-no">407</span><span id="line-407"> * 1) check the regions is allowed. 2) check the concurrent tasks for regions. 3) check the</span> |
| <span class="source-line-no">408</span><span id="line-408"> * total concurrent tasks. 4) check the concurrent tasks for server.</span> |
| <span class="source-line-no">409</span><span id="line-409"> * @param loc the destination of data</span> |
| <span class="source-line-no">410</span><span id="line-410"> * @param heapSizeOfRow the data size</span> |
| <span class="source-line-no">411</span><span id="line-411"> * @return either Include {@link RequestController.ReturnCode} or skip</span> |
| <span class="source-line-no">412</span><span id="line-412"> * {@link RequestController.ReturnCode}</span> |
| <span class="source-line-no">413</span><span id="line-413"> */</span> |
| <span class="source-line-no">414</span><span id="line-414"> @Override</span> |
| <span class="source-line-no">415</span><span id="line-415"> public ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow) {</span> |
| <span class="source-line-no">416</span><span id="line-416"> RegionInfo regionInfo = loc.getRegion();</span> |
| <span class="source-line-no">417</span><span id="line-417"> if (regionsIncluded.contains(regionInfo)) {</span> |
| <span class="source-line-no">418</span><span id="line-418"> // We already know what to do with this region.</span> |
| <span class="source-line-no">419</span><span id="line-419"> return ReturnCode.INCLUDE;</span> |
| <span class="source-line-no">420</span><span id="line-420"> }</span> |
| <span class="source-line-no">421</span><span id="line-421"> AtomicInteger regionCnt = taskCounterPerRegion.get(loc.getRegion().getRegionName());</span> |
| <span class="source-line-no">422</span><span id="line-422"> if (regionCnt != null && regionCnt.get() >= maxConcurrentTasksPerRegion) {</span> |
| <span class="source-line-no">423</span><span id="line-423"> // Too many tasks on this region already.</span> |
| <span class="source-line-no">424</span><span id="line-424"> return ReturnCode.SKIP;</span> |
| <span class="source-line-no">425</span><span id="line-425"> }</span> |
| <span class="source-line-no">426</span><span id="line-426"> int newServers =</span> |
| <span class="source-line-no">427</span><span id="line-427"> serversIncluded.size() + (serversIncluded.contains(loc.getServerName()) ? 0 : 1);</span> |
| <span class="source-line-no">428</span><span id="line-428"> if ((newServers + tasksInProgress.get()) > maxTotalConcurrentTasks) {</span> |
| <span class="source-line-no">429</span><span id="line-429"> // Too many tasks.</span> |
| <span class="source-line-no">430</span><span id="line-430"> return ReturnCode.SKIP;</span> |
| <span class="source-line-no">431</span><span id="line-431"> }</span> |
| <span class="source-line-no">432</span><span id="line-432"> AtomicInteger serverCnt = taskCounterPerServer.get(loc.getServerName());</span> |
| <span class="source-line-no">433</span><span id="line-433"> if (serverCnt != null && serverCnt.get() >= maxConcurrentTasksPerServer) {</span> |
| <span class="source-line-no">434</span><span id="line-434"> // Too many tasks for this individual server</span> |
| <span class="source-line-no">435</span><span id="line-435"> return ReturnCode.SKIP;</span> |
| <span class="source-line-no">436</span><span id="line-436"> }</span> |
| <span class="source-line-no">437</span><span id="line-437"> return ReturnCode.INCLUDE;</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> |
| <span class="source-line-no">440</span><span id="line-440"> @Override</span> |
| <span class="source-line-no">441</span><span id="line-441"> public void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow) {</span> |
| <span class="source-line-no">442</span><span id="line-442"> if (code == ReturnCode.INCLUDE) {</span> |
| <span class="source-line-no">443</span><span id="line-443"> regionsIncluded.add(loc.getRegion());</span> |
| <span class="source-line-no">444</span><span id="line-444"> serversIncluded.add(loc.getServerName());</span> |
| <span class="source-line-no">445</span><span id="line-445"> }</span> |
| <span class="source-line-no">446</span><span id="line-446"> busyRegions.add(loc.getRegion().getRegionName());</span> |
| <span class="source-line-no">447</span><span id="line-447"> }</span> |
| <span class="source-line-no">448</span><span id="line-448"> }</span> |
| <span class="source-line-no">449</span><span id="line-449"></span> |
| <span class="source-line-no">450</span><span id="line-450"> /**</span> |
| <span class="source-line-no">451</span><span id="line-451"> * limit the number of rows for each request.</span> |
| <span class="source-line-no">452</span><span id="line-452"> */</span> |
| <span class="source-line-no">453</span><span id="line-453"> static class RequestRowsChecker implements RowChecker {</span> |
| <span class="source-line-no">454</span><span id="line-454"></span> |
| <span class="source-line-no">455</span><span id="line-455"> private final long maxRowsPerRequest;</span> |
| <span class="source-line-no">456</span><span id="line-456"> private final Map<ServerName, Long> serverRows = new HashMap<>();</span> |
| <span class="source-line-no">457</span><span id="line-457"></span> |
| <span class="source-line-no">458</span><span id="line-458"> RequestRowsChecker(final long maxRowsPerRequest) {</span> |
| <span class="source-line-no">459</span><span id="line-459"> this.maxRowsPerRequest = maxRowsPerRequest;</span> |
| <span class="source-line-no">460</span><span id="line-460"> }</span> |
| <span class="source-line-no">461</span><span id="line-461"></span> |
| <span class="source-line-no">462</span><span id="line-462"> @Override</span> |
| <span class="source-line-no">463</span><span id="line-463"> public void reset() {</span> |
| <span class="source-line-no">464</span><span id="line-464"> serverRows.clear();</span> |
| <span class="source-line-no">465</span><span id="line-465"> }</span> |
| <span class="source-line-no">466</span><span id="line-466"></span> |
| <span class="source-line-no">467</span><span id="line-467"> @Override</span> |
| <span class="source-line-no">468</span><span id="line-468"> public ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow) {</span> |
| <span class="source-line-no">469</span><span id="line-469"> long currentRows =</span> |
| <span class="source-line-no">470</span><span id="line-470"> serverRows.containsKey(loc.getServerName()) ? serverRows.get(loc.getServerName()) : 0L;</span> |
| <span class="source-line-no">471</span><span id="line-471"> // accept at least one row</span> |
| <span class="source-line-no">472</span><span id="line-472"> if (currentRows == 0 || currentRows < maxRowsPerRequest) {</span> |
| <span class="source-line-no">473</span><span id="line-473"> return ReturnCode.INCLUDE;</span> |
| <span class="source-line-no">474</span><span id="line-474"> }</span> |
| <span class="source-line-no">475</span><span id="line-475"> return ReturnCode.SKIP;</span> |
| <span class="source-line-no">476</span><span id="line-476"> }</span> |
| <span class="source-line-no">477</span><span id="line-477"></span> |
| <span class="source-line-no">478</span><span id="line-478"> @Override</span> |
| <span class="source-line-no">479</span><span id="line-479"> public void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow) {</span> |
| <span class="source-line-no">480</span><span id="line-480"> if (code == ReturnCode.INCLUDE) {</span> |
| <span class="source-line-no">481</span><span id="line-481"> long currentRows =</span> |
| <span class="source-line-no">482</span><span id="line-482"> serverRows.containsKey(loc.getServerName()) ? serverRows.get(loc.getServerName()) : 0L;</span> |
| <span class="source-line-no">483</span><span id="line-483"> serverRows.put(loc.getServerName(), currentRows + 1);</span> |
| <span class="source-line-no">484</span><span id="line-484"> }</span> |
| <span class="source-line-no">485</span><span id="line-485"> }</span> |
| <span class="source-line-no">486</span><span id="line-486"> }</span> |
| <span class="source-line-no">487</span><span id="line-487"></span> |
| <span class="source-line-no">488</span><span id="line-488"> /**</span> |
| <span class="source-line-no">489</span><span id="line-489"> * limit the heap size for each request.</span> |
| <span class="source-line-no">490</span><span id="line-490"> */</span> |
| <span class="source-line-no">491</span><span id="line-491"> static class RequestHeapSizeChecker implements RowChecker {</span> |
| <span class="source-line-no">492</span><span id="line-492"></span> |
| <span class="source-line-no">493</span><span id="line-493"> private final long maxHeapSizePerRequest;</span> |
| <span class="source-line-no">494</span><span id="line-494"> private final Map<ServerName, Long> serverRequestSizes = new HashMap<>();</span> |
| <span class="source-line-no">495</span><span id="line-495"></span> |
| <span class="source-line-no">496</span><span id="line-496"> RequestHeapSizeChecker(final long maxHeapSizePerRequest) {</span> |
| <span class="source-line-no">497</span><span id="line-497"> this.maxHeapSizePerRequest = maxHeapSizePerRequest;</span> |
| <span class="source-line-no">498</span><span id="line-498"> }</span> |
| <span class="source-line-no">499</span><span id="line-499"></span> |
| <span class="source-line-no">500</span><span id="line-500"> @Override</span> |
| <span class="source-line-no">501</span><span id="line-501"> public void reset() {</span> |
| <span class="source-line-no">502</span><span id="line-502"> serverRequestSizes.clear();</span> |
| <span class="source-line-no">503</span><span id="line-503"> }</span> |
| <span class="source-line-no">504</span><span id="line-504"></span> |
| <span class="source-line-no">505</span><span id="line-505"> @Override</span> |
| <span class="source-line-no">506</span><span id="line-506"> public ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow) {</span> |
| <span class="source-line-no">507</span><span id="line-507"> // Is it ok for limit of request size?</span> |
| <span class="source-line-no">508</span><span id="line-508"> long currentRequestSize = serverRequestSizes.containsKey(loc.getServerName())</span> |
| <span class="source-line-no">509</span><span id="line-509"> ? serverRequestSizes.get(loc.getServerName())</span> |
| <span class="source-line-no">510</span><span id="line-510"> : 0L;</span> |
| <span class="source-line-no">511</span><span id="line-511"> // accept at least one request</span> |
| <span class="source-line-no">512</span><span id="line-512"> if (currentRequestSize == 0 || currentRequestSize + heapSizeOfRow <= maxHeapSizePerRequest) {</span> |
| <span class="source-line-no">513</span><span id="line-513"> return ReturnCode.INCLUDE;</span> |
| <span class="source-line-no">514</span><span id="line-514"> }</span> |
| <span class="source-line-no">515</span><span id="line-515"> return ReturnCode.SKIP;</span> |
| <span class="source-line-no">516</span><span id="line-516"> }</span> |
| <span class="source-line-no">517</span><span id="line-517"></span> |
| <span class="source-line-no">518</span><span id="line-518"> @Override</span> |
| <span class="source-line-no">519</span><span id="line-519"> public void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow) {</span> |
| <span class="source-line-no">520</span><span id="line-520"> if (code == ReturnCode.INCLUDE) {</span> |
| <span class="source-line-no">521</span><span id="line-521"> long currentRequestSize = serverRequestSizes.containsKey(loc.getServerName())</span> |
| <span class="source-line-no">522</span><span id="line-522"> ? serverRequestSizes.get(loc.getServerName())</span> |
| <span class="source-line-no">523</span><span id="line-523"> : 0L;</span> |
| <span class="source-line-no">524</span><span id="line-524"> serverRequestSizes.put(loc.getServerName(), currentRequestSize + heapSizeOfRow);</span> |
| <span class="source-line-no">525</span><span id="line-525"> }</span> |
| <span class="source-line-no">526</span><span id="line-526"> }</span> |
| <span class="source-line-no">527</span><span id="line-527"> }</span> |
| <span class="source-line-no">528</span><span id="line-528"></span> |
| <span class="source-line-no">529</span><span id="line-529"> /**</span> |
| <span class="source-line-no">530</span><span id="line-530"> * Provide a way to control the flow of rows iteration.</span> |
| <span class="source-line-no">531</span><span id="line-531"> */</span> |
| <span class="source-line-no">532</span><span id="line-532"> interface RowChecker {</span> |
| <span class="source-line-no">533</span><span id="line-533"></span> |
| <span class="source-line-no">534</span><span id="line-534"> ReturnCode canTakeOperation(HRegionLocation loc, long heapSizeOfRow);</span> |
| <span class="source-line-no">535</span><span id="line-535"></span> |
| <span class="source-line-no">536</span><span id="line-536"> /**</span> |
| <span class="source-line-no">537</span><span id="line-537"> * Add the final ReturnCode to the checker. The ReturnCode may be reversed, so the checker need</span> |
| <span class="source-line-no">538</span><span id="line-538"> * the final decision to update the inner state.</span> |
| <span class="source-line-no">539</span><span id="line-539"> * @param code The final decision</span> |
| <span class="source-line-no">540</span><span id="line-540"> * @param loc the destination of data</span> |
| <span class="source-line-no">541</span><span id="line-541"> * @param heapSizeOfRow the data size</span> |
| <span class="source-line-no">542</span><span id="line-542"> */</span> |
| <span class="source-line-no">543</span><span id="line-543"> void notifyFinal(ReturnCode code, HRegionLocation loc, long heapSizeOfRow);</span> |
| <span class="source-line-no">544</span><span id="line-544"></span> |
| <span class="source-line-no">545</span><span id="line-545"> /**</span> |
| <span class="source-line-no">546</span><span id="line-546"> * Reset the inner state.</span> |
| <span class="source-line-no">547</span><span id="line-547"> */</span> |
| <span class="source-line-no">548</span><span id="line-548"> void reset() throws InterruptedIOException;</span> |
| <span class="source-line-no">549</span><span id="line-549"> }</span> |
| <span class="source-line-no">550</span><span id="line-550">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
