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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.regionserver.throttle;</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.util.concurrent.ConcurrentHashMap;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.concurrent.ConcurrentMap;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.conf.Configured;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.HBaseInterfaceAudience;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.Stoppable;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.regionserver.RegionServerServices;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.regionserver.compactions.OffPeakHours;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.slf4j.Logger;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">031</span><span id="line-31"></span> |
| <span class="source-line-no">032</span><span id="line-32">@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)</span> |
| <span class="source-line-no">033</span><span id="line-33">public abstract class PressureAwareThroughputController extends Configured</span> |
| <span class="source-line-no">034</span><span id="line-34"> implements ThroughputController, Stoppable {</span> |
| <span class="source-line-no">035</span><span id="line-35"> private static final Logger LOG =</span> |
| <span class="source-line-no">036</span><span id="line-36"> LoggerFactory.getLogger(PressureAwareThroughputController.class);</span> |
| <span class="source-line-no">037</span><span id="line-37"></span> |
| <span class="source-line-no">038</span><span id="line-38"> /**</span> |
| <span class="source-line-no">039</span><span id="line-39"> * Stores the information of one controlled compaction.</span> |
| <span class="source-line-no">040</span><span id="line-40"> */</span> |
| <span class="source-line-no">041</span><span id="line-41"> private static final class ActiveOperation {</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43"> private final long startTime;</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> private long lastControlTime;</span> |
| <span class="source-line-no">046</span><span id="line-46"></span> |
| <span class="source-line-no">047</span><span id="line-47"> private long lastControlSize;</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> private long totalSize;</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51"> private long numberOfSleeps;</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> private long totalSleepTime;</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> // prevent too many debug log</span> |
| <span class="source-line-no">056</span><span id="line-56"> private long lastLogTime;</span> |
| <span class="source-line-no">057</span><span id="line-57"></span> |
| <span class="source-line-no">058</span><span id="line-58"> ActiveOperation() {</span> |
| <span class="source-line-no">059</span><span id="line-59"> long currentTime = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">060</span><span id="line-60"> this.startTime = currentTime;</span> |
| <span class="source-line-no">061</span><span id="line-61"> this.lastControlTime = currentTime;</span> |
| <span class="source-line-no">062</span><span id="line-62"> this.lastLogTime = currentTime;</span> |
| <span class="source-line-no">063</span><span id="line-63"> }</span> |
| <span class="source-line-no">064</span><span id="line-64"> }</span> |
| <span class="source-line-no">065</span><span id="line-65"></span> |
| <span class="source-line-no">066</span><span id="line-66"> protected long maxThroughputUpperBound;</span> |
| <span class="source-line-no">067</span><span id="line-67"></span> |
| <span class="source-line-no">068</span><span id="line-68"> protected long maxThroughputLowerBound;</span> |
| <span class="source-line-no">069</span><span id="line-69"></span> |
| <span class="source-line-no">070</span><span id="line-70"> protected OffPeakHours offPeakHours;</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> protected long controlPerSize;</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 int tuningPeriod;</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> private volatile double maxThroughput;</span> |
| <span class="source-line-no">077</span><span id="line-77"> private volatile double maxThroughputPerOperation;</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> protected final ConcurrentMap<String, ActiveOperation> activeOperations =</span> |
| <span class="source-line-no">080</span><span id="line-80"> new ConcurrentHashMap<>();</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> @Override</span> |
| <span class="source-line-no">083</span><span id="line-83"> public abstract void setup(final RegionServerServices server);</span> |
| <span class="source-line-no">084</span><span id="line-84"></span> |
| <span class="source-line-no">085</span><span id="line-85"> protected String throughputDesc(long deltaSize, long elapsedTime) {</span> |
| <span class="source-line-no">086</span><span id="line-86"> return throughputDesc((double) deltaSize / elapsedTime * 1000);</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"> protected String throughputDesc(double speed) {</span> |
| <span class="source-line-no">090</span><span id="line-90"> if (speed >= 1E15) { // large enough to say it is unlimited</span> |
| <span class="source-line-no">091</span><span id="line-91"> return "unlimited";</span> |
| <span class="source-line-no">092</span><span id="line-92"> } else {</span> |
| <span class="source-line-no">093</span><span id="line-93"> return String.format("%.2f MB/second", speed / 1024 / 1024);</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"> }</span> |
| <span class="source-line-no">096</span><span id="line-96"></span> |
| <span class="source-line-no">097</span><span id="line-97"> @Override</span> |
| <span class="source-line-no">098</span><span id="line-98"> public void start(String opName) {</span> |
| <span class="source-line-no">099</span><span id="line-99"> activeOperations.put(opName, new ActiveOperation());</span> |
| <span class="source-line-no">100</span><span id="line-100"> maxThroughputPerOperation = getMaxThroughput() / activeOperations.size();</span> |
| <span class="source-line-no">101</span><span id="line-101"> }</span> |
| <span class="source-line-no">102</span><span id="line-102"></span> |
| <span class="source-line-no">103</span><span id="line-103"> @Override</span> |
| <span class="source-line-no">104</span><span id="line-104"> public long control(String opName, long size) throws InterruptedException {</span> |
| <span class="source-line-no">105</span><span id="line-105"> ActiveOperation operation = activeOperations.get(opName);</span> |
| <span class="source-line-no">106</span><span id="line-106"> operation.totalSize += size;</span> |
| <span class="source-line-no">107</span><span id="line-107"> long deltaSize = operation.totalSize - operation.lastControlSize;</span> |
| <span class="source-line-no">108</span><span id="line-108"> if (deltaSize < controlPerSize) {</span> |
| <span class="source-line-no">109</span><span id="line-109"> return 0;</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"> long now = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">112</span><span id="line-112"> long minTimeAllowed = (long) (deltaSize / maxThroughputPerOperation * 1000); // ms</span> |
| <span class="source-line-no">113</span><span id="line-113"> long elapsedTime = now - operation.lastControlTime;</span> |
| <span class="source-line-no">114</span><span id="line-114"> operation.lastControlSize = operation.totalSize;</span> |
| <span class="source-line-no">115</span><span id="line-115"> if (elapsedTime >= minTimeAllowed) {</span> |
| <span class="source-line-no">116</span><span id="line-116"> operation.lastControlTime = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">117</span><span id="line-117"> return 0;</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"> // too fast</span> |
| <span class="source-line-no">120</span><span id="line-120"> long sleepTime = minTimeAllowed - elapsedTime;</span> |
| <span class="source-line-no">121</span><span id="line-121"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> // do not log too much</span> |
| <span class="source-line-no">123</span><span id="line-123"> if (now - operation.lastLogTime > 5L * 1000) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> LOG.debug("deltaSize: " + deltaSize + " bytes; elapseTime: " + elapsedTime + " ns");</span> |
| <span class="source-line-no">125</span><span id="line-125"> LOG.debug(opName + " sleep=" + sleepTime + "ms because current throughput is "</span> |
| <span class="source-line-no">126</span><span id="line-126"> + throughputDesc(deltaSize, elapsedTime) + ", max allowed is "</span> |
| <span class="source-line-no">127</span><span id="line-127"> + throughputDesc(maxThroughputPerOperation) + ", already slept "</span> |
| <span class="source-line-no">128</span><span id="line-128"> + operation.numberOfSleeps + " time(s) and total slept time is "</span> |
| <span class="source-line-no">129</span><span id="line-129"> + operation.totalSleepTime + " ms till now.");</span> |
| <span class="source-line-no">130</span><span id="line-130"> operation.lastLogTime = now;</span> |
| <span class="source-line-no">131</span><span id="line-131"> }</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"> Thread.sleep(sleepTime);</span> |
| <span class="source-line-no">134</span><span id="line-134"> operation.numberOfSleeps++;</span> |
| <span class="source-line-no">135</span><span id="line-135"> operation.totalSleepTime += sleepTime;</span> |
| <span class="source-line-no">136</span><span id="line-136"> operation.lastControlTime = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">137</span><span id="line-137"> return sleepTime;</span> |
| <span class="source-line-no">138</span><span id="line-138"> }</span> |
| <span class="source-line-no">139</span><span id="line-139"></span> |
| <span class="source-line-no">140</span><span id="line-140"> @Override</span> |
| <span class="source-line-no">141</span><span id="line-141"> public void finish(String opName) {</span> |
| <span class="source-line-no">142</span><span id="line-142"> ActiveOperation operation = activeOperations.remove(opName);</span> |
| <span class="source-line-no">143</span><span id="line-143"> maxThroughputPerOperation = getMaxThroughput() / activeOperations.size();</span> |
| <span class="source-line-no">144</span><span id="line-144"> long elapsedTime = EnvironmentEdgeManager.currentTime() - operation.startTime;</span> |
| <span class="source-line-no">145</span><span id="line-145"> LOG.info(opName + " average throughput is " + throughputDesc(operation.totalSize, elapsedTime)</span> |
| <span class="source-line-no">146</span><span id="line-146"> + ", slept " + operation.numberOfSleeps + " time(s) and total slept time is "</span> |
| <span class="source-line-no">147</span><span id="line-147"> + operation.totalSleepTime + " ms. " + activeOperations.size()</span> |
| <span class="source-line-no">148</span><span id="line-148"> + " active operations remaining, total limit is " + throughputDesc(getMaxThroughput()));</span> |
| <span class="source-line-no">149</span><span id="line-149"> }</span> |
| <span class="source-line-no">150</span><span id="line-150"></span> |
| <span class="source-line-no">151</span><span id="line-151"> private volatile boolean stopped = false;</span> |
| <span class="source-line-no">152</span><span id="line-152"></span> |
| <span class="source-line-no">153</span><span id="line-153"> @Override</span> |
| <span class="source-line-no">154</span><span id="line-154"> public void stop(String why) {</span> |
| <span class="source-line-no">155</span><span id="line-155"> stopped = true;</span> |
| <span class="source-line-no">156</span><span id="line-156"> }</span> |
| <span class="source-line-no">157</span><span id="line-157"></span> |
| <span class="source-line-no">158</span><span id="line-158"> @Override</span> |
| <span class="source-line-no">159</span><span id="line-159"> public boolean isStopped() {</span> |
| <span class="source-line-no">160</span><span id="line-160"> return stopped;</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"> public double getMaxThroughput() {</span> |
| <span class="source-line-no">164</span><span id="line-164"> return maxThroughput;</span> |
| <span class="source-line-no">165</span><span id="line-165"> }</span> |
| <span class="source-line-no">166</span><span id="line-166"></span> |
| <span class="source-line-no">167</span><span id="line-167"> public void setMaxThroughput(double maxThroughput) {</span> |
| <span class="source-line-no">168</span><span id="line-168"> this.maxThroughput = maxThroughput;</span> |
| <span class="source-line-no">169</span><span id="line-169"> maxThroughputPerOperation = getMaxThroughput() / activeOperations.size();</span> |
| <span class="source-line-no">170</span><span id="line-170"> }</span> |
| <span class="source-line-no">171</span><span id="line-171">}</span> |
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