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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd";>
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css"
title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
+<span class="sourceLineNo">002</span> *<a name="line.2"></a>
+<span class="sourceLineNo">003</span> * Licensed to the Apache Software
Foundation (ASF) under one<a name="line.3"></a>
+<span class="sourceLineNo">004</span> * or more contributor license
agreements. See the NOTICE file<a name="line.4"></a>
+<span class="sourceLineNo">005</span> * distributed with this work for
additional information<a name="line.5"></a>
+<span class="sourceLineNo">006</span> * regarding copyright ownership. The
ASF licenses this file<a name="line.6"></a>
+<span class="sourceLineNo">007</span> * to you under the Apache License,
Version 2.0 (the<a name="line.7"></a>
+<span class="sourceLineNo">008</span> * "License"); you may not use this file
except in compliance<a name="line.8"></a>
+<span class="sourceLineNo">009</span> * with the License. You may obtain a
copy of the License at<a name="line.9"></a>
+<span class="sourceLineNo">010</span> *<a name="line.10"></a>
+<span class="sourceLineNo">011</span> *
http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a>
+<span class="sourceLineNo">012</span> *<a name="line.12"></a>
+<span class="sourceLineNo">013</span> * Unless required by applicable law or
agreed to in writing, software<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * distributed under the License is
distributed on an "AS IS" BASIS,<a name="line.14"></a>
+<span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF
ANY KIND, either express or implied.<a name="line.15"></a>
+<span class="sourceLineNo">016</span> * See the License for the specific
language governing permissions and<a name="line.16"></a>
+<span class="sourceLineNo">017</span> * limitations under the License.<a
name="line.17"></a>
+<span class="sourceLineNo">018</span> */<a name="line.18"></a>
+<span class="sourceLineNo">019</span>package
org.apache.hadoop.hbase.regionserver;<a name="line.19"></a>
+<span class="sourceLineNo">020</span><a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static
org.apache.hadoop.hbase.regionserver.Store.NO_PRIORITY;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static
org.apache.hadoop.hbase.regionserver.Store.PRIORITY_USER;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.IOException;<a
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.io.PrintWriter;<a
name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.io.StringWriter;<a
name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.Comparator;<a
name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.Iterator;<a
name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.Optional;<a
name="line.29"></a>
+<span class="sourceLineNo">030</span>import
java.util.concurrent.BlockingQueue;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.concurrent.Executors;<a
name="line.31"></a>
+<span class="sourceLineNo">032</span>import
java.util.concurrent.RejectedExecutionException;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import
java.util.concurrent.RejectedExecutionHandler;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import
java.util.concurrent.ThreadFactory;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import
java.util.concurrent.ThreadPoolExecutor;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.concurrent.TimeUnit;<a
name="line.36"></a>
+<span class="sourceLineNo">037</span>import
java.util.concurrent.atomic.AtomicInteger;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import java.util.function.IntSupplier;<a
name="line.38"></a>
+<span class="sourceLineNo">039</span><a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.commons.logging.Log;<a
name="line.40"></a>
+<span class="sourceLineNo">041</span>import
org.apache.commons.logging.LogFactory;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import
org.apache.hadoop.conf.Configuration;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import
org.apache.hadoop.hbase.conf.ConfigurationManager;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import
org.apache.hadoop.hbase.conf.PropagatingConfigurationObserver;<a
name="line.44"></a>
+<span class="sourceLineNo">045</span>import
org.apache.hadoop.hbase.quotas.RegionServerSpaceQuotaManager;<a
name="line.45"></a>
+<span class="sourceLineNo">046</span>import
org.apache.hadoop.hbase.regionserver.compactions.CompactionContext;<a
name="line.46"></a>
+<span class="sourceLineNo">047</span>import
org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker;<a
name="line.47"></a>
+<span class="sourceLineNo">048</span>import
org.apache.hadoop.hbase.regionserver.compactions.CompactionRequestImpl;<a
name="line.48"></a>
+<span class="sourceLineNo">049</span>import
org.apache.hadoop.hbase.regionserver.compactions.CompactionRequester;<a
name="line.49"></a>
+<span class="sourceLineNo">050</span>import
org.apache.hadoop.hbase.regionserver.throttle.CompactionThroughputControllerFactory;<a
name="line.50"></a>
+<span class="sourceLineNo">051</span>import
org.apache.hadoop.hbase.regionserver.throttle.ThroughputController;<a
name="line.51"></a>
+<span class="sourceLineNo">052</span>import
org.apache.hadoop.hbase.security.User;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import
org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import
org.apache.hadoop.hbase.util.StealJobQueue;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import
org.apache.hadoop.ipc.RemoteException;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import
org.apache.hadoop.util.StringUtils;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import
org.apache.yetus.audience.InterfaceAudience;<a name="line.57"></a>
+<span class="sourceLineNo">058</span><a name="line.58"></a>
+<span class="sourceLineNo">059</span>import
org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a
name="line.59"></a>
+<span class="sourceLineNo">060</span>import
org.apache.hadoop.hbase.shaded.com.google.common.base.Preconditions;<a
name="line.60"></a>
+<span class="sourceLineNo">061</span><a name="line.61"></a>
+<span class="sourceLineNo">062</span>/**<a name="line.62"></a>
+<span class="sourceLineNo">063</span> * Compact region on request and then run
split if appropriate<a name="line.63"></a>
+<span class="sourceLineNo">064</span> */<a name="line.64"></a>
+<span class="sourceLineNo">065</span>@InterfaceAudience.Private<a
name="line.65"></a>
+<span class="sourceLineNo">066</span>public class CompactSplit implements
CompactionRequester, PropagatingConfigurationObserver {<a name="line.66"></a>
+<span class="sourceLineNo">067</span> private static final Log LOG =
LogFactory.getLog(CompactSplit.class);<a name="line.67"></a>
+<span class="sourceLineNo">068</span><a name="line.68"></a>
+<span class="sourceLineNo">069</span> // Configuration key for the large
compaction threads.<a name="line.69"></a>
+<span class="sourceLineNo">070</span> public final static String
LARGE_COMPACTION_THREADS =<a name="line.70"></a>
+<span class="sourceLineNo">071</span>
"hbase.regionserver.thread.compaction.large";<a name="line.71"></a>
+<span class="sourceLineNo">072</span> public final static int
LARGE_COMPACTION_THREADS_DEFAULT = 1;<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
+<span class="sourceLineNo">074</span> // Configuration key for the small
compaction threads.<a name="line.74"></a>
+<span class="sourceLineNo">075</span> public final static String
SMALL_COMPACTION_THREADS =<a name="line.75"></a>
+<span class="sourceLineNo">076</span>
"hbase.regionserver.thread.compaction.small";<a name="line.76"></a>
+<span class="sourceLineNo">077</span> public final static int
SMALL_COMPACTION_THREADS_DEFAULT = 1;<a name="line.77"></a>
+<span class="sourceLineNo">078</span><a name="line.78"></a>
+<span class="sourceLineNo">079</span> // Configuration key for split
threads<a name="line.79"></a>
+<span class="sourceLineNo">080</span> public final static String
SPLIT_THREADS = "hbase.regionserver.thread.split";<a name="line.80"></a>
+<span class="sourceLineNo">081</span> public final static int
SPLIT_THREADS_DEFAULT = 1;<a name="line.81"></a>
+<span class="sourceLineNo">082</span><a name="line.82"></a>
+<span class="sourceLineNo">083</span> public static final String
REGION_SERVER_REGION_SPLIT_LIMIT =<a name="line.83"></a>
+<span class="sourceLineNo">084</span>
"hbase.regionserver.regionSplitLimit";<a name="line.84"></a>
+<span class="sourceLineNo">085</span> public static final int
DEFAULT_REGION_SERVER_REGION_SPLIT_LIMIT= 1000;<a name="line.85"></a>
+<span class="sourceLineNo">086</span><a name="line.86"></a>
+<span class="sourceLineNo">087</span> private final HRegionServer server;<a
name="line.87"></a>
+<span class="sourceLineNo">088</span> private final Configuration conf;<a
name="line.88"></a>
+<span class="sourceLineNo">089</span><a name="line.89"></a>
+<span class="sourceLineNo">090</span> private final ThreadPoolExecutor
longCompactions;<a name="line.90"></a>
+<span class="sourceLineNo">091</span> private final ThreadPoolExecutor
shortCompactions;<a name="line.91"></a>
+<span class="sourceLineNo">092</span> private final ThreadPoolExecutor
splits;<a name="line.92"></a>
+<span class="sourceLineNo">093</span><a name="line.93"></a>
+<span class="sourceLineNo">094</span> private volatile ThroughputController
compactionThroughputController;<a name="line.94"></a>
+<span class="sourceLineNo">095</span><a name="line.95"></a>
+<span class="sourceLineNo">096</span> /**<a name="line.96"></a>
+<span class="sourceLineNo">097</span> * Splitting should not take place if
the total number of regions exceed this.<a name="line.97"></a>
+<span class="sourceLineNo">098</span> * This is not a hard limit to the
number of regions but it is a guideline to<a name="line.98"></a>
+<span class="sourceLineNo">099</span> * stop splitting after number of
online regions is greater than this.<a name="line.99"></a>
+<span class="sourceLineNo">100</span> */<a name="line.100"></a>
+<span class="sourceLineNo">101</span> private int regionSplitLimit;<a
name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span> /** @param server */<a
name="line.103"></a>
+<span class="sourceLineNo">104</span> CompactSplit(HRegionServer server) {<a
name="line.104"></a>
+<span class="sourceLineNo">105</span> this.server = server;<a
name="line.105"></a>
+<span class="sourceLineNo">106</span> this.conf =
server.getConfiguration();<a name="line.106"></a>
+<span class="sourceLineNo">107</span> this.regionSplitLimit =
conf.getInt(REGION_SERVER_REGION_SPLIT_LIMIT,<a name="line.107"></a>
+<span class="sourceLineNo">108</span>
DEFAULT_REGION_SERVER_REGION_SPLIT_LIMIT);<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span> int largeThreads = Math.max(1,
conf.getInt(<a name="line.110"></a>
+<span class="sourceLineNo">111</span> LARGE_COMPACTION_THREADS,
LARGE_COMPACTION_THREADS_DEFAULT));<a name="line.111"></a>
+<span class="sourceLineNo">112</span> int smallThreads = conf.getInt(<a
name="line.112"></a>
+<span class="sourceLineNo">113</span> SMALL_COMPACTION_THREADS,
SMALL_COMPACTION_THREADS_DEFAULT);<a name="line.113"></a>
+<span class="sourceLineNo">114</span><a name="line.114"></a>
+<span class="sourceLineNo">115</span> int splitThreads =
conf.getInt(SPLIT_THREADS, SPLIT_THREADS_DEFAULT);<a name="line.115"></a>
+<span class="sourceLineNo">116</span><a name="line.116"></a>
+<span class="sourceLineNo">117</span> // if we have throttle threads, make
sure the user also specified size<a name="line.117"></a>
+<span class="sourceLineNo">118</span>
Preconditions.checkArgument(largeThreads > 0 && smallThreads >
0);<a name="line.118"></a>
+<span class="sourceLineNo">119</span><a name="line.119"></a>
+<span class="sourceLineNo">120</span> final String n =
Thread.currentThread().getName();<a name="line.120"></a>
+<span class="sourceLineNo">121</span><a name="line.121"></a>
+<span class="sourceLineNo">122</span> StealJobQueue<Runnable>
stealJobQueue = new StealJobQueue<Runnable>(COMPARATOR);<a
name="line.122"></a>
+<span class="sourceLineNo">123</span> this.longCompactions = new
ThreadPoolExecutor(largeThreads, largeThreads,<a name="line.123"></a>
+<span class="sourceLineNo">124</span> 60, TimeUnit.SECONDS,
stealJobQueue,<a name="line.124"></a>
+<span class="sourceLineNo">125</span> new ThreadFactory() {<a
name="line.125"></a>
+<span class="sourceLineNo">126</span> @Override<a name="line.126"></a>
+<span class="sourceLineNo">127</span> public Thread
newThread(Runnable r) {<a name="line.127"></a>
+<span class="sourceLineNo">128</span> String name = n +
"-longCompactions-" + System.currentTimeMillis();<a name="line.128"></a>
+<span class="sourceLineNo">129</span> return new Thread(r, name);<a
name="line.129"></a>
+<span class="sourceLineNo">130</span> }<a name="line.130"></a>
+<span class="sourceLineNo">131</span> });<a name="line.131"></a>
+<span class="sourceLineNo">132</span>
this.longCompactions.setRejectedExecutionHandler(new Rejection());<a
name="line.132"></a>
+<span class="sourceLineNo">133</span>
this.longCompactions.prestartAllCoreThreads();<a name="line.133"></a>
+<span class="sourceLineNo">134</span> this.shortCompactions = new
ThreadPoolExecutor(smallThreads, smallThreads,<a name="line.134"></a>
+<span class="sourceLineNo">135</span> 60, TimeUnit.SECONDS,
stealJobQueue.getStealFromQueue(),<a name="line.135"></a>
+<span class="sourceLineNo">136</span> new ThreadFactory() {<a
name="line.136"></a>
+<span class="sourceLineNo">137</span> @Override<a name="line.137"></a>
+<span class="sourceLineNo">138</span> public Thread
newThread(Runnable r) {<a name="line.138"></a>
+<span class="sourceLineNo">139</span> String name = n +
"-shortCompactions-" + System.currentTimeMillis();<a name="line.139"></a>
+<span class="sourceLineNo">140</span> return new Thread(r, name);<a
name="line.140"></a>
+<span class="sourceLineNo">141</span> }<a name="line.141"></a>
+<span class="sourceLineNo">142</span> });<a name="line.142"></a>
+<span class="sourceLineNo">143</span> this.shortCompactions<a
name="line.143"></a>
+<span class="sourceLineNo">144</span> .setRejectedExecutionHandler(new
Rejection());<a name="line.144"></a>
+<span class="sourceLineNo">145</span> this.splits = (ThreadPoolExecutor)<a
name="line.145"></a>
+<span class="sourceLineNo">146</span>
Executors.newFixedThreadPool(splitThreads,<a name="line.146"></a>
+<span class="sourceLineNo">147</span> new ThreadFactory() {<a
name="line.147"></a>
+<span class="sourceLineNo">148</span> @Override<a name="line.148"></a>
+<span class="sourceLineNo">149</span> public Thread
newThread(Runnable r) {<a name="line.149"></a>
+<span class="sourceLineNo">150</span> String name = n + "-splits-"
+ System.currentTimeMillis();<a name="line.150"></a>
+<span class="sourceLineNo">151</span> return new Thread(r, name);<a
name="line.151"></a>
+<span class="sourceLineNo">152</span> }<a name="line.152"></a>
+<span class="sourceLineNo">153</span> });<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span> // compaction throughput controller<a
name="line.155"></a>
+<span class="sourceLineNo">156</span> this.compactionThroughputController
=<a name="line.156"></a>
+<span class="sourceLineNo">157</span>
CompactionThroughputControllerFactory.create(server, conf);<a
name="line.157"></a>
+<span class="sourceLineNo">158</span> }<a name="line.158"></a>
+<span class="sourceLineNo">159</span><a name="line.159"></a>
+<span class="sourceLineNo">160</span> @Override<a name="line.160"></a>
+<span class="sourceLineNo">161</span> public String toString() {<a
name="line.161"></a>
+<span class="sourceLineNo">162</span> return "compaction_queue=("<a
name="line.162"></a>
+<span class="sourceLineNo">163</span> +
longCompactions.getQueue().size() + ":"<a name="line.163"></a>
+<span class="sourceLineNo">164</span> +
shortCompactions.getQueue().size() + ")"<a name="line.164"></a>
+<span class="sourceLineNo">165</span> + ", split_queue=" +
splits.getQueue().size();<a name="line.165"></a>
+<span class="sourceLineNo">166</span> }<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span> public String dumpQueue() {<a
name="line.168"></a>
+<span class="sourceLineNo">169</span> StringBuffer queueLists = new
StringBuffer();<a name="line.169"></a>
+<span class="sourceLineNo">170</span> queueLists.append("Compaction/Split
Queue dump:\n");<a name="line.170"></a>
+<span class="sourceLineNo">171</span> queueLists.append(" LargeCompation
Queue:\n");<a name="line.171"></a>
+<span class="sourceLineNo">172</span> BlockingQueue<Runnable> lq =
longCompactions.getQueue();<a name="line.172"></a>
+<span class="sourceLineNo">173</span> Iterator<Runnable> it =
lq.iterator();<a name="line.173"></a>
+<span class="sourceLineNo">174</span> while (it.hasNext()) {<a
name="line.174"></a>
+<span class="sourceLineNo">175</span> queueLists.append(" " +
it.next().toString());<a name="line.175"></a>
+<span class="sourceLineNo">176</span> queueLists.append("\n");<a
name="line.176"></a>
+<span class="sourceLineNo">177</span> }<a name="line.177"></a>
+<span class="sourceLineNo">178</span><a name="line.178"></a>
+<span class="sourceLineNo">179</span> if (shortCompactions != null) {<a
name="line.179"></a>
+<span class="sourceLineNo">180</span> queueLists.append("\n");<a
name="line.180"></a>
+<span class="sourceLineNo">181</span> queueLists.append(" SmallCompation
Queue:\n");<a name="line.181"></a>
+<span class="sourceLineNo">182</span> lq = shortCompactions.getQueue();<a
name="line.182"></a>
+<span class="sourceLineNo">183</span> it = lq.iterator();<a
name="line.183"></a>
+<span class="sourceLineNo">184</span> while (it.hasNext()) {<a
name="line.184"></a>
+<span class="sourceLineNo">185</span> queueLists.append(" " +
it.next().toString());<a name="line.185"></a>
+<span class="sourceLineNo">186</span> queueLists.append("\n");<a
name="line.186"></a>
+<span class="sourceLineNo">187</span> }<a name="line.187"></a>
+<span class="sourceLineNo">188</span> }<a name="line.188"></a>
+<span class="sourceLineNo">189</span><a name="line.189"></a>
+<span class="sourceLineNo">190</span> queueLists.append("\n");<a
name="line.190"></a>
+<span class="sourceLineNo">191</span> queueLists.append(" Split
Queue:\n");<a name="line.191"></a>
+<span class="sourceLineNo">192</span> lq = splits.getQueue();<a
name="line.192"></a>
+<span class="sourceLineNo">193</span> it = lq.iterator();<a
name="line.193"></a>
+<span class="sourceLineNo">194</span> while (it.hasNext()) {<a
name="line.194"></a>
+<span class="sourceLineNo">195</span> queueLists.append(" " +
it.next().toString());<a name="line.195"></a>
+<span class="sourceLineNo">196</span> queueLists.append("\n");<a
name="line.196"></a>
+<span class="sourceLineNo">197</span> }<a name="line.197"></a>
+<span class="sourceLineNo">198</span><a name="line.198"></a>
+<span class="sourceLineNo">199</span> return queueLists.toString();<a
name="line.199"></a>
+<span class="sourceLineNo">200</span> }<a name="line.200"></a>
+<span class="sourceLineNo">201</span><a name="line.201"></a>
+<span class="sourceLineNo">202</span> public synchronized boolean
requestSplit(final Region r) {<a name="line.202"></a>
+<span class="sourceLineNo">203</span> // don't split regions that are
blocking<a name="line.203"></a>
+<span class="sourceLineNo">204</span> if (shouldSplitRegion() &&
((HRegion)r).getCompactPriority() >= PRIORITY_USER) {<a name="line.204"></a>
+<span class="sourceLineNo">205</span> byte[] midKey =
((HRegion)r).checkSplit();<a name="line.205"></a>
+<span class="sourceLineNo">206</span> if (midKey != null) {<a
name="line.206"></a>
+<span class="sourceLineNo">207</span> requestSplit(r, midKey);<a
name="line.207"></a>
+<span class="sourceLineNo">208</span> return true;<a
name="line.208"></a>
+<span class="sourceLineNo">209</span> }<a name="line.209"></a>
+<span class="sourceLineNo">210</span> }<a name="line.210"></a>
+<span class="sourceLineNo">211</span> return false;<a name="line.211"></a>
+<span class="sourceLineNo">212</span> }<a name="line.212"></a>
+<span class="sourceLineNo">213</span><a name="line.213"></a>
+<span class="sourceLineNo">214</span> public synchronized void
requestSplit(final Region r, byte[] midKey) {<a name="line.214"></a>
+<span class="sourceLineNo">215</span> requestSplit(r, midKey, null);<a
name="line.215"></a>
+<span class="sourceLineNo">216</span> }<a name="line.216"></a>
+<span class="sourceLineNo">217</span><a name="line.217"></a>
+<span class="sourceLineNo">218</span> /*<a name="line.218"></a>
+<span class="sourceLineNo">219</span> * The User parameter allows the split
thread to assume the correct user identity<a name="line.219"></a>
+<span class="sourceLineNo">220</span> */<a name="line.220"></a>
+<span class="sourceLineNo">221</span> public synchronized void
requestSplit(final Region r, byte[] midKey, User user) {<a name="line.221"></a>
+<span class="sourceLineNo">222</span> if (midKey == null) {<a
name="line.222"></a>
+<span class="sourceLineNo">223</span> LOG.debug("Region " +
r.getRegionInfo().getRegionNameAsString() +<a name="line.223"></a>
+<span class="sourceLineNo">224</span> " not splittable because
midkey=null");<a name="line.224"></a>
+<span class="sourceLineNo">225</span> if
(((HRegion)r).shouldForceSplit()) {<a name="line.225"></a>
+<span class="sourceLineNo">226</span> ((HRegion)r).clearSplit();<a
name="line.226"></a>
+<span class="sourceLineNo">227</span> }<a name="line.227"></a>
+<span class="sourceLineNo">228</span> return;<a name="line.228"></a>
+<span class="sourceLineNo">229</span> }<a name="line.229"></a>
+<span class="sourceLineNo">230</span> try {<a name="line.230"></a>
+<span class="sourceLineNo">231</span> this.splits.execute(new
SplitRequest(r, midKey, this.server, user));<a name="line.231"></a>
+<span class="sourceLineNo">232</span> if (LOG.isDebugEnabled()) {<a
name="line.232"></a>
+<span class="sourceLineNo">233</span> LOG.debug("Splitting " + r + ", "
+ this);<a name="line.233"></a>
+<span class="sourceLineNo">234</span> }<a name="line.234"></a>
+<span class="sourceLineNo">235</span> } catch (RejectedExecutionException
ree) {<a name="line.235"></a>
+<span class="sourceLineNo">236</span> LOG.info("Could not execute split
for " + r, ree);<a name="line.236"></a>
+<span class="sourceLineNo">237</span> }<a name="line.237"></a>
+<span class="sourceLineNo">238</span> }<a name="line.238"></a>
+<span class="sourceLineNo">239</span><a name="line.239"></a>
+<span class="sourceLineNo">240</span> // A compaction life cycle tracker to
trace the execution of all the compactions triggered by one<a
name="line.240"></a>
+<span class="sourceLineNo">241</span> // request and delegate to the source
CompactionLifeCycleTracker. It will call completed method if<a
name="line.241"></a>
+<span class="sourceLineNo">242</span> // all the compactions are finished.<a
name="line.242"></a>
+<span class="sourceLineNo">243</span> private static final class
AggregatingCompactionLifeCycleTracker<a name="line.243"></a>
+<span class="sourceLineNo">244</span> implements
CompactionLifeCycleTracker {<a name="line.244"></a>
+<span class="sourceLineNo">245</span><a name="line.245"></a>
+<span class="sourceLineNo">246</span> private final
CompactionLifeCycleTracker tracker;<a name="line.246"></a>
+<span class="sourceLineNo">247</span><a name="line.247"></a>
+<span class="sourceLineNo">248</span> private final AtomicInteger
remaining;<a name="line.248"></a>
+<span class="sourceLineNo">249</span><a name="line.249"></a>
+<span class="sourceLineNo">250</span> public
AggregatingCompactionLifeCycleTracker(CompactionLifeCycleTracker tracker,<a
name="line.250"></a>
+<span class="sourceLineNo">251</span> int numberOfStores) {<a
name="line.251"></a>
+<span class="sourceLineNo">252</span> this.tracker = tracker;<a
name="line.252"></a>
+<span class="sourceLineNo">253</span> this.remaining = new
AtomicInteger(numberOfStores);<a name="line.253"></a>
+<span class="sourceLineNo">254</span> }<a name="line.254"></a>
+<span class="sourceLineNo">255</span><a name="line.255"></a>
+<span class="sourceLineNo">256</span> private void tryCompleted() {<a
name="line.256"></a>
+<span class="sourceLineNo">257</span> if (remaining.decrementAndGet() ==
0) {<a name="line.257"></a>
+<span class="sourceLineNo">258</span> tracker.completed();<a
name="line.258"></a>
+<span class="sourceLineNo">259</span> }<a name="line.259"></a>
+<span class="sourceLineNo">260</span> }<a name="line.260"></a>
+<span class="sourceLineNo">261</span><a name="line.261"></a>
+<span class="sourceLineNo">262</span> @Override<a name="line.262"></a>
+<span class="sourceLineNo">263</span> public void notExecuted(Store store,
String reason) {<a name="line.263"></a>
+<span class="sourceLineNo">264</span> tracker.notExecuted(store,
reason);<a name="line.264"></a>
+<span class="sourceLineNo">265</span> tryCompleted();<a
name="line.265"></a>
+<span class="sourceLineNo">266</span> }<a name="line.266"></a>
+<span class="sourceLineNo">267</span><a name="line.267"></a>
+<span class="sourceLineNo">268</span> @Override<a name="line.268"></a>
+<span class="sourceLineNo">269</span> public void beforeExecution(Store
store) {<a name="line.269"></a>
+<span class="sourceLineNo">270</span> tracker.beforeExecution(store);<a
name="line.270"></a>
+<span class="sourceLineNo">271</span> }<a name="line.271"></a>
+<span class="sourceLineNo">272</span><a name="line.272"></a>
+<span class="sourceLineNo">273</span> @Override<a name="line.273"></a>
+<span class="sourceLineNo">274</span> public void afterExecution(Store
store) {<a name="line.274"></a>
+<span class="sourceLineNo">275</span> tracker.afterExecution(store);<a
name="line.275"></a>
+<span class="sourceLineNo">276</span> tryCompleted();<a
name="line.276"></a>
+<span class="sourceLineNo">277</span> }<a name="line.277"></a>
+<span class="sourceLineNo">278</span> }<a name="line.278"></a>
+<span class="sourceLineNo">279</span><a name="line.279"></a>
+<span class="sourceLineNo">280</span> private CompactionLifeCycleTracker
wrap(CompactionLifeCycleTracker tracker,<a name="line.280"></a>
+<span class="sourceLineNo">281</span> IntSupplier numberOfStores) {<a
name="line.281"></a>
+<span class="sourceLineNo">282</span> if (tracker ==
CompactionLifeCycleTracker.DUMMY) {<a name="line.282"></a>
+<span class="sourceLineNo">283</span> // a simple optimization to avoid
creating unnecessary objects as usually we do not care about<a
name="line.283"></a>
+<span class="sourceLineNo">284</span> // the life cycle of a
compaction.<a name="line.284"></a>
+<span class="sourceLineNo">285</span> return tracker;<a
name="line.285"></a>
+<span class="sourceLineNo">286</span> } else {<a name="line.286"></a>
+<span class="sourceLineNo">287</span> return new
AggregatingCompactionLifeCycleTracker(tracker, numberOfStores.getAsInt());<a
name="line.287"></a>
+<span class="sourceLineNo">288</span> }<a name="line.288"></a>
+<span class="sourceLineNo">289</span> }<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
+<span class="sourceLineNo">291</span> @Override<a name="line.291"></a>
+<span class="sourceLineNo">292</span> public synchronized void
requestCompaction(HRegion region, String why, int priority,<a
name="line.292"></a>
+<span class="sourceLineNo">293</span> CompactionLifeCycleTracker tracker,
User user) throws IOException {<a name="line.293"></a>
+<span class="sourceLineNo">294</span> requestCompactionInternal(region,
why, priority, true,<a name="line.294"></a>
+<span class="sourceLineNo">295</span> wrap(tracker, () ->
region.getTableDescriptor().getColumnFamilyCount()), user);<a
name="line.295"></a>
+<span class="sourceLineNo">296</span> }<a name="line.296"></a>
+<span class="sourceLineNo">297</span><a name="line.297"></a>
+<span class="sourceLineNo">298</span> @Override<a name="line.298"></a>
+<span class="sourceLineNo">299</span> public synchronized void
requestCompaction(HRegion region, HStore store, String why, int priority,<a
name="line.299"></a>
+<span class="sourceLineNo">300</span> CompactionLifeCycleTracker tracker,
User user) throws IOException {<a name="line.300"></a>
+<span class="sourceLineNo">301</span> requestCompactionInternal(region,
store, why, priority, true, wrap(tracker, () -> 1), user);<a
name="line.301"></a>
+<span class="sourceLineNo">302</span> }<a name="line.302"></a>
+<span class="sourceLineNo">303</span><a name="line.303"></a>
+<span class="sourceLineNo">304</span> private void
requestCompactionInternal(HRegion region, String why, int priority,<a
name="line.304"></a>
+<span class="sourceLineNo">305</span> boolean selectNow,
CompactionLifeCycleTracker tracker, User user) throws IOException {<a
name="line.305"></a>
+<span class="sourceLineNo">306</span> // request compaction on all stores<a
name="line.306"></a>
+<span class="sourceLineNo">307</span> for (HStore store :
region.stores.values()) {<a name="line.307"></a>
+<span class="sourceLineNo">308</span> requestCompactionInternal(region,
store, why, priority, selectNow, tracker, user);<a name="line.308"></a>
+<span class="sourceLineNo">309</span> }<a name="line.309"></a>
+<span class="sourceLineNo">310</span> }<a name="line.310"></a>
+<span class="sourceLineNo">311</span><a name="line.311"></a>
+<span class="sourceLineNo">312</span> private void
requestCompactionInternal(HRegion region, HStore store, String why, int
priority,<a name="line.312"></a>
+<span class="sourceLineNo">313</span> boolean selectNow,
CompactionLifeCycleTracker tracker, User user) throws IOException {<a
name="line.313"></a>
+<span class="sourceLineNo">314</span> if (this.server.isStopped() ||
(region.getTableDescriptor() != null &&<a name="line.314"></a>
+<span class="sourceLineNo">315</span>
!region.getTableDescriptor().isCompactionEnabled())) {<a name="line.315"></a>
+<span class="sourceLineNo">316</span> return;<a name="line.316"></a>
+<span class="sourceLineNo">317</span> }<a name="line.317"></a>
+<span class="sourceLineNo">318</span> RegionServerSpaceQuotaManager
spaceQuotaManager =<a name="line.318"></a>
+<span class="sourceLineNo">319</span>
this.server.getRegionServerSpaceQuotaManager();<a name="line.319"></a>
+<span class="sourceLineNo">320</span> if (spaceQuotaManager != null
&&<a name="line.320"></a>
+<span class="sourceLineNo">321</span>
spaceQuotaManager.areCompactionsDisabled(region.getTableDescriptor().getTableName()))
{<a name="line.321"></a>
+<span class="sourceLineNo">322</span> String reason = "Ignoring
compaction request for " + region +<a name="line.322"></a>
+<span class="sourceLineNo">323</span> " as an active space quota
violation " + " policy disallows compactions.";<a name="line.323"></a>
+<span class="sourceLineNo">324</span> tracker.notExecuted(store,
reason);<a name="line.324"></a>
+<span class="sourceLineNo">325</span> LOG.debug(reason);<a
name="line.325"></a>
+<span class="sourceLineNo">326</span> return;<a name="line.326"></a>
+<span class="sourceLineNo">327</span> }<a name="line.327"></a>
+<span class="sourceLineNo">328</span><a name="line.328"></a>
+<span class="sourceLineNo">329</span> Optional<CompactionContext>
compaction;<a name="line.329"></a>
+<span class="sourceLineNo">330</span> if (selectNow) {<a
name="line.330"></a>
+<span class="sourceLineNo">331</span> compaction =
selectCompaction(region, store, priority, tracker, user);<a name="line.331"></a>
+<span class="sourceLineNo">332</span> if (!compaction.isPresent()) {<a
name="line.332"></a>
+<span class="sourceLineNo">333</span> // message logged inside<a
name="line.333"></a>
+<span class="sourceLineNo">334</span> return;<a name="line.334"></a>
+<span class="sourceLineNo">335</span> }<a name="line.335"></a>
+<span class="sourceLineNo">336</span> } else {<a name="line.336"></a>
+<span class="sourceLineNo">337</span> compaction = Optional.empty();<a
name="line.337"></a>
+<span class="sourceLineNo">338</span> }<a name="line.338"></a>
+<span class="sourceLineNo">339</span><a name="line.339"></a>
+<span class="sourceLineNo">340</span> ThreadPoolExecutor pool;<a
name="line.340"></a>
+<span class="sourceLineNo">341</span> if (selectNow) {<a
name="line.341"></a>
+<span class="sourceLineNo">342</span> // compaction.get is safe as we
will just return if selectNow is true but no compaction is<a
name="line.342"></a>
+<span class="sourceLineNo">343</span> // selected<a name="line.343"></a>
+<span class="sourceLineNo">344</span> pool =
store.throttleCompaction(compaction.get().getRequest().getSize()) ?
longCompactions<a name="line.344"></a>
+<span class="sourceLineNo">345</span> : shortCompactions;<a
name="line.345"></a>
+<span class="sourceLineNo">346</span> } else {<a name="line.346"></a>
+<span class="sourceLineNo">347</span> // We assume that most compactions
are small. So, put system compactions into small<a name="line.347"></a>
+<span class="sourceLineNo">348</span> // pool; we will do selection
there, and move to large pool if necessary.<a name="line.348"></a>
+<span class="sourceLineNo">349</span> pool = shortCompactions;<a
name="line.349"></a>
+<span class="sourceLineNo">350</span> }<a name="line.350"></a>
+<span class="sourceLineNo">351</span> pool.execute(new
CompactionRunner(store, region, compaction, pool, user));<a name="line.351"></a>
+<span class="sourceLineNo">352</span>
region.incrementCompactionsQueuedCount();<a name="line.352"></a>
+<span class="sourceLineNo">353</span> if (LOG.isDebugEnabled()) {<a
name="line.353"></a>
+<span class="sourceLineNo">354</span> String type = (pool ==
shortCompactions) ? "Small " : "Large ";<a name="line.354"></a>
+<span class="sourceLineNo">355</span> LOG.debug(type + "Compaction
requested: " + (selectNow ? compaction.toString() : "system")<a
name="line.355"></a>
+<span class="sourceLineNo">356</span> + (why != null &&
!why.isEmpty() ? "; Because: " + why : "") + "; " + this);<a
name="line.356"></a>
+<span class="sourceLineNo">357</span> }<a name="line.357"></a>
+<span class="sourceLineNo">358</span> }<a name="line.358"></a>
+<span class="sourceLineNo">359</span><a name="line.359"></a>
+<span class="sourceLineNo">360</span> public synchronized void
requestSystemCompaction(HRegion region, String why) throws IOException {<a
name="line.360"></a>
+<span class="sourceLineNo">361</span> requestCompactionInternal(region,
why, NO_PRIORITY, false,<a name="line.361"></a>
+<span class="sourceLineNo">362</span> CompactionLifeCycleTracker.DUMMY,
null);<a name="line.362"></a>
+<span class="sourceLineNo">363</span> }<a name="line.363"></a>
+<span class="sourceLineNo">364</span><a name="line.364"></a>
+<span class="sourceLineNo">365</span> public synchronized void
requestSystemCompaction(HRegion region, HStore store, String why)<a
name="line.365"></a>
+<span class="sourceLineNo">366</span> throws IOException {<a
name="line.366"></a>
+<span class="sourceLineNo">367</span> requestCompactionInternal(region,
store, why, NO_PRIORITY, false,<a name="line.367"></a>
+<span class="sourceLineNo">368</span> CompactionLifeCycleTracker.DUMMY,
null);<a name="line.368"></a>
+<span class="sourceLineNo">369</span> }<a name="line.369"></a>
+<span class="sourceLineNo">370</span><a name="line.370"></a>
+<span class="sourceLineNo">371</span> private
Optional<CompactionContext> selectCompaction(HRegion region, HStore
store, int priority,<a name="line.371"></a>
+<span class="sourceLineNo">372</span> CompactionLifeCycleTracker tracker,
User user) throws IOException {<a name="line.372"></a>
+<span class="sourceLineNo">373</span> Optional<CompactionContext>
compaction = store.requestCompaction(priority, tracker, user);<a
name="line.373"></a>
+<span class="sourceLineNo">374</span> if (!compaction.isPresent()
&& region.getRegionInfo() != null) {<a name="line.374"></a>
+<span class="sourceLineNo">375</span> String reason = "Not compacting " +
region.getRegionInfo().getRegionNameAsString() +<a name="line.375"></a>
+<span class="sourceLineNo">376</span> " because compaction request
was cancelled";<a name="line.376"></a>
+<span class="sourceLineNo">377</span> tracker.notExecuted(store,
reason);<a name="line.377"></a>
+<span class="sourceLineNo">378</span> LOG.debug(reason);<a
name="line.378"></a>
+<span class="sourceLineNo">379</span> }<a name="line.379"></a>
+<span class="sourceLineNo">380</span> return compaction;<a
name="line.380"></a>
+<span class="sourceLineNo">381</span> }<a name="line.381"></a>
+<span class="sourceLineNo">382</span><a name="line.382"></a>
+<span class="sourceLineNo">383</span> /**<a name="line.383"></a>
+<span class="sourceLineNo">384</span> * Only interrupt once it's done with a
run through the work loop.<a name="line.384"></a>
+<span class="sourceLineNo">385</span> */<a name="line.385"></a>
+<span class="sourceLineNo">386</span> void interruptIfNecessary() {<a
name="line.386"></a>
+<span class="sourceLineNo">387</span> splits.shutdown();<a
name="line.387"></a>
+<span class="sourceLineNo">388</span> longCompactions.shutdown();<a
name="line.388"></a>
+<span class="sourceLineNo">389</span> shortCompactions.shutdown();<a
name="line.389"></a>
+<span class="sourceLineNo">390</span> }<a name="line.390"></a>
+<span class="sourceLineNo">391</span><a name="line.391"></a>
+<span class="sourceLineNo">392</span> private void waitFor(ThreadPoolExecutor
t, String name) {<a name="line.392"></a>
+<span class="sourceLineNo">393</span> boolean done = false;<a
name="line.393"></a>
+<span class="sourceLineNo">394</span> while (!done) {<a name="line.394"></a>
+<span class="sourceLineNo">395</span> try {<a name="line.395"></a>
+<span class="sourceLineNo">396</span> done = t.awaitTermination(60,
TimeUnit.SECONDS);<a name="line.396"></a>
+<span class="sourceLineNo">397</span> LOG.info("Waiting for " + name +
" to finish...");<a name="line.397"></a>
+<span class="sourceLineNo">398</span> if (!done) {<a
name="line.398"></a>
+<span class="sourceLineNo">399</span> t.shutdownNow();<a
name="line.399"></a>
+<span class="sourceLineNo">400</span> }<a name="line.400"></a>
+<span class="sourceLineNo">401</span> } catch (InterruptedException ie)
{<a name="line.401"></a>
+<span class="sourceLineNo">402</span> LOG.warn("Interrupted waiting for
" + name + " to finish...");<a name="line.402"></a>
+<span class="sourceLineNo">403</span> }<a name="line.403"></a>
+<span class="sourceLineNo">404</span> }<a name="line.404"></a>
+<span class="sourceLineNo">405</span> }<a name="line.405"></a>
+<span class="sourceLineNo">406</span><a name="line.406"></a>
+<span class="sourceLineNo">407</span> void join() {<a name="line.407"></a>
+<span class="sourceLineNo">408</span> waitFor(splits, "Split Thread");<a
name="line.408"></a>
+<span class="sourceLineNo">409</span> waitFor(longCompactions, "Large
Compaction Thread");<a name="line.409"></a>
+<span class="sourceLineNo">410</span> waitFor(shortCompactions, "Small
Compaction Thread");<a name="line.410"></a>
+<span class="sourceLineNo">411</span> }<a name="line.411"></a>
+<span class="sourceLineNo">412</span><a name="line.412"></a>
+<span class="sourceLineNo">413</span> /**<a name="line.413"></a>
+<span class="sourceLineNo">414</span> * Returns the current size of the
queue containing regions that are<a name="line.414"></a>
+<span class="sourceLineNo">415</span> * processed.<a name="line.415"></a>
+<span class="sourceLineNo">416</span> *<a name="line.416"></a>
+<span class="sourceLineNo">417</span> * @return The current size of the
regions queue.<a name="line.417"></a>
+<span class="sourceLineNo">418</span> */<a name="line.418"></a>
+<span class="sourceLineNo">419</span> public int getCompactionQueueSize() {<a
name="line.419"></a>
+<span class="sourceLineNo">420</span> return
longCompactions.getQueue().size() + shortCompactions.getQueue().size();<a
name="line.420"></a>
+<span class="sourceLineNo">421</span> }<a name="line.421"></a>
+<span class="sourceLineNo">422</span><a name="line.422"></a>
+<span class="sourceLineNo">423</span> public int
getLargeCompactionQueueSize() {<a name="line.423"></a>
+<span class="sourceLineNo">424</span> return
longCompactions.getQueue().size();<a name="line.424"></a>
+<span class="sourceLineNo">425</span> }<a name="line.425"></a>
+<span class="sourceLineNo">426</span><a name="line.426"></a>
+<span class="sourceLineNo">427</span><a name="line.427"></a>
+<span class="sourceLineNo">428</span> public int
getSmallCompactionQueueSize() {<a name="line.428"></a>
+<span class="sourceLineNo">429</span> return
shortCompactions.getQueue().size();<a name="line.429"></a>
+<span class="sourceLineNo">430</span> }<a name="line.430"></a>
+<span class="sourceLineNo">431</span><a name="line.431"></a>
+<span class="sourceLineNo">432</span> public int getSplitQueueSize() {<a
name="line.432"></a>
+<span class="sourceLineNo">433</span> return splits.getQueue().size();<a
name="line.433"></a>
+<span class="sourceLineNo">434</span> }<a name="line.434"></a>
+<span class="sourceLineNo">435</span><a name="line.435"></a>
+<span class="sourceLineNo">436</span> private boolean shouldSplitRegion() {<a
name="line.436"></a>
+<span class="sourceLineNo">437</span> if(server.getNumberOfOnlineRegions()
> 0.9*regionSplitLimit) {<a name="line.437"></a>
+<span class="sourceLineNo">438</span> LOG.warn("Total number of regions
is approaching the upper limit " + regionSplitLimit + ". "<a
name="line.438"></a>
+<span class="sourceLineNo">439</span> + "Please consider taking a
look at http://hbase.apache.org/book.html#ops.regionmgt";);<a
name="line.439"></a>
+<span class="sourceLineNo">440</span> }<a name="line.440"></a>
+<span class="sourceLineNo">441</span> return (regionSplitLimit >
server.getNumberOfOnlineRegions());<a name="line.441"></a>
+<span class="sourceLineNo">442</span> }<a name="line.442"></a>
+<span class="sourceLineNo">443</span><a name="line.443"></a>
+<span class="sourceLineNo">444</span> /**<a name="line.444"></a>
+<span class="sourceLineNo">445</span> * @return the regionSplitLimit<a
name="line.445"></a>
+<span class="sourceLineNo">446</span> */<a name="line.446"></a>
+<span class="sourceLineNo">447</span> public int getRegionSplitLimit() {<a
name="line.447"></a>
+<span class="sourceLineNo">448</span> return this.regionSplitLimit;<a
name="line.448"></a>
+<span class="sourceLineNo">449</span> }<a name="line.449"></a>
+<span class="sourceLineNo">450</span><a name="line.450"></a>
+<span class="sourceLineNo">451</span> private static final
Comparator<Runnable> COMPARATOR =<a name="line.451"></a>
+<span class="sourceLineNo">452</span> new Comparator<Runnable>()
{<a name="line.452"></a>
+<span class="sourceLineNo">453</span><a name="line.453"></a>
+<span class="sourceLineNo">454</span> private int
compare(CompactionRequestImpl r1, CompactionRequestImpl r2) {<a
name="line.454"></a>
+<span class="sourceLineNo">455</span> if (r1 == r2) {<a
name="line.455"></a>
+<span class="sourceLineNo">456</span> return 0; //they are the same
request<a name="line.456"></a>
+<span class="sourceLineNo">457</span> }<a name="line.457"></a>
+<span class="sourceLineNo">458</span> // less first<a name="line.458"></a>
+<span class="sourceLineNo">459</span> int cmp =
Integer.compare(r1.getPriority(), r2.getPriority());<a name="line.459"></a>
+<span class="sourceLineNo">460</span> if (cmp != 0) {<a
name="line.460"></a>
+<span class="sourceLineNo">461</span> return cmp;<a name="line.461"></a>
+<span class="sourceLineNo">462</span> }<a name="line.462"></a>
+<span class="sourceLineNo">463</span> cmp =
Long.compare(r1.getSelectionTime(), r2.getSelectionTime());<a
name="line.463"></a>
+<span class="sourceLineNo">464</span> if (cmp != 0) {<a
name="line.464"></a>
+<span class="sourceLineNo">465</span> return cmp;<a name="line.465"></a>
+<span class="sourceLineNo">466</span> }<a name="line.466"></a>
+<span class="sourceLineNo">467</span><a name="line.467"></a>
+<span class="sourceLineNo">468</span> // break the tie based on hash
code<a name="line.468"></a>
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- System.identityHashCode(r2);<a name="line.469"></a>
+<span class="sourceLineNo">470</span> }<a name="line.470"></a>
+<span class="sourceLineNo">471</span><a name="line.471"></a>
+<span class="sourceLineNo">472</span> @Override<a name="line.472"></a>
+<span class="sourceLineNo">473</span> public int compare(Runnable r1,
Runnable r2) {<a name="line.473"></a>
+<span class="sourceLineNo">474</span> // CompactionRunner first<a
name="line.474"></a>
+<span class="sourceLineNo">475</span> if (r1 instanceof CompactionRunner)
{<a name="line.475"></a>
+<span class="sourceLineNo">476</span> if (!(r2 instanceof
CompactionRunner)) {<a name="line.476"></a>
+<span class="sourceLineNo">477</span> return -1;<a
name="line.477"></a>
+<span class="sourceLineNo">478</span> }<a name="line.478"></a>
+<span class="sourceLineNo">479</span> } else {<a name="line.479"></a>
+<span class="sourceLineNo">480</span> if (r2 instanceof
CompactionRunner) {<a name="line.480"></a>
+<span class="sourceLineNo">481</span> return 1;<a name="line.481"></a>
+<span class="sourceLineNo">482</span> } else {<a name="line.482"></a>
+<span class="sourceLineNo">483</span> // break the tie based on hash
code<a name="line.483"></a>
+<span class="sourceLineNo">484</span> return
System.identityHashCode(r1) - System.identityHashCode(r2);<a
name="line.484"></a>
+<span class="sourceLineNo">485</span> }<a name="line.485"></a>
+<span class="sourceLineNo">486</span> }<a name="line.486"></a>
+<span class="sourceLineNo">487</span> CompactionRunner o1 =
(CompactionRunner) r1;<a name="line.487"></a>
+<span class="sourceLineNo">488</span> CompactionRunner o2 =
(CompactionRunner) r2;<a name="line.488"></a>
+<span class="sourceLineNo">489</span> // less first<a name="line.489"></a>
+<span class="sourceLineNo">490</span> int cmp =
Integer.compare(o1.queuedPriority, o2.queuedPriority);<a name="line.490"></a>
+<span class="sourceLineNo">491</span> if (cmp != 0) {<a
name="line.491"></a>
+<span class="sourceLineNo">492</span> return cmp;<a name="line.492"></a>
+<span class="sourceLineNo">493</span> }<a name="line.493"></a>
+<span class="sourceLineNo">494</span> Optional<CompactionContext>
c1 = o1.compaction;<a name="line.494"></a>
+<span class="sourceLineNo">495</span> Optional<CompactionContext>
c2 = o2.compaction;<a name="line.495"></a>
+<span class="sourceLineNo">496</span> if (c1.isPresent()) {<a
name="line.496"></a>
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compare(c1.get().getRequest(), c2.get().getRequest()) : -1;<a
name="line.497"></a>
+<span class="sourceLineNo">498</span> } else {<a name="line.498"></a>
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name="line.499"></a>
+<span class="sourceLineNo">500</span> }<a name="line.500"></a>
+<span class="sourceLineNo">501</span> }<a name="line.501"></a>
+<span class="sourceLineNo">502</span> };<a name="line.502"></a>
+<span class="sourceLineNo">503</span><a name="line.503"></a>
+<span class="sourceLineNo">504</span> private final class CompactionRunner
implements Runnable {<a name="line.504"></a>
+<span class="sourceLineNo">505</span> private final HStore store;<a
name="line.505"></a>
+<span class="sourceLineNo">506</span> private final HRegion region;<a
name="line.506"></a>
+<span class="sourceLineNo">507</span> private final
Optional<CompactionContext> compaction;<a name="line.507"></a>
+<span class="sourceLineNo">508</span> private int queuedPriority;<a
name="line.508"></a>
+<span class="sourceLineNo">509</span> private ThreadPoolExecutor parent;<a
name="line.509"></a>
+<span class="sourceLineNo">510</span> private User user;<a
name="line.510"></a>
+<span class="sourceLineNo">511</span> private long time;<a
name="line.511"></a>
+<span class="sourceLineNo">512</span><a name="line.512"></a>
+<span class="sourceLineNo">513</span> public CompactionRunner(HStore store,
HRegion region, Optional<CompactionContext> compaction,<a
name="line.513"></a>
+<span class="sourceLineNo">514</span> ThreadPoolExecutor parent, User
user) {<a name="line.514"></a>
+<span class="sourceLineNo">515</span> this.store = store;<a
name="line.515"></a>
+<span class="sourceLineNo">516</span> this.region = region;<a
name="line.516"></a>
+<span class="sourceLineNo">517</span> this.compaction = compaction;<a
name="line.517"></a>
+<span class="sourceLineNo">518</span> this.queuedPriority =
compaction.isPresent() ? compaction.get().getRequest().getPriority()<a
name="line.518"></a>
+<span class="sourceLineNo">519</span> : store.getCompactPriority();<a
name="line.519"></a>
+<span class="sourceLineNo">520</span> this.parent = parent;<a
name="line.520"></a>
+<span class="sourceLineNo">521</span> this.user = user;<a
name="line.521"></a>
+<span class="sourceLineNo">522</span> this.time =
EnvironmentEdgeManager.currentTime();<a name="line.522"></a>
+<span class="sourceLineNo">523</span> }<a name="line.523"></a>
+<span class="sourceLineNo">524</span><a name="line.524"></a>
+<span class="sourceLineNo">525</span> @Override<a name="line.525"></a>
+<span class="sourceLineNo">526</span> public String toString() {<a
name="line.526"></a>
+<span class="sourceLineNo">527</span> return compaction.map(c ->
"Request = " + c.getRequest())<a name="line.527"></a>
+<span class="sourceLineNo">528</span> .orElse("regionName = " +
region.toString() + ", storeName = " + store.toString() +<a name="line.528"></a>
+<span class="sourceLineNo">529</span> ", priority = " +
queuedPriority + ", time = " + time);<a name="line.529"></a>
+<span class="sourceLineNo">530</span> }<a name="line.530"></a>
+<span class="sourceLineNo">531</span><a name="line.531"></a>
+<span class="sourceLineNo">532</span> private void doCompaction(User user)
{<a name="line.532"></a>
+<span class="sourceLineNo">533</span> CompactionContext c;<a
name="line.533"></a>
+<span class="sourceLineNo">534</span> // Common case - system compaction
without a file selection. Select now.<a name="line.534"></a>
+<span class="sourceLineNo">535</span> if (!compaction.isPresent()) {<a
name="line.535"></a>
+<span class="sourceLineNo">536</span> int oldPriority =
this.queuedPriority;<a name="line.536"></a>
+<span class="sourceLineNo">537</span> this.queuedPriority =
this.store.getCompactPriority();<a name="line.537"></a>
+<span class="sourceLineNo">538</span> if (this.queuedPriority >
oldPriority) {<a name="line.538"></a>
+<span class="sourceLineNo">539</span> // Store priority decreased
while we were in queue (due to some other compaction?),<a name="line.539"></a>
+<span class="sourceLineNo">540</span> // requeue with new priority to
avoid blocking potential higher priorities.<a name="line.540"></a>
+<span class="sourceLineNo">541</span> this.parent.execute(this);<a
name="line.541"></a>
+<span class="sourceLineNo">542</span> return;<a name="line.542"></a>
+<span class="sourceLineNo">543</span> }<a name="line.543"></a>
+<span class="sourceLineNo">544</span> Optional<CompactionContext>
selected;<a name="line.544"></a>
+<span class="sourceLineNo">545</span> try {<a name="line.545"></a>
+<span class="sourceLineNo">546</span> selected =
selectCompaction(this.region, this.store, queuedPriority,<a name="line.546"></a>
+<span class="sourceLineNo">547</span>
CompactionLifeCycleTracker.DUMMY, user);<a name="line.547"></a>
+<span class="sourceLineNo">548</span> } catch (IOException ex) {<a
name="line.548"></a>
+<span class="sourceLineNo">549</span> LOG.error("Compaction selection
failed " + this, ex);<a name="line.549"></a>
+<span class="sourceLineNo">550</span> server.checkFileSystem();<a
name="line.550"></a>
+<span class="sourceLineNo">551</span>
region.decrementCompactionsQueuedCount();<a name="line.551"></a>
+<span class="sourceLineNo">552</span> return;<a name="line.552"></a>
+<span class="sourceLineNo">553</span> }<a name="line.553"></a>
+<span class="sourceLineNo">554</span> if (!selected.isPresent()) {<a
name="line.554"></a>
+<span class="sourceLineNo">555</span>
region.decrementCompactionsQueuedCount();<a name="line.555"></a>
+<span class="sourceLineNo">556</span> return; // nothing to do<a
name="line.556"></a>
+<span class="sourceLineNo">557</span> }<a name="line.557"></a>
+<span class="sourceLineNo">558</span> c = selected.get();<a
name="line.558"></a>
+<span class="sourceLineNo">559</span> assert c.hasSelection();<a
name="line.559"></a>
+<span class="sourceLineNo">560</span> // Now see if we are in correct
pool for the size; if not, go to the correct one.<a name="line.560"></a>
+<span class="sourceLineNo">561</span> // We might end up waiting for a
while, so cancel the selection.<a name="line.561"></a>
+<span class="sourceLineNo">562</span><a name="line.562"></a>
+<span class="sourceLineNo">563</span> ThreadPoolExecutor pool =<a
name="line.563"></a>
+<span class="sourceLineNo">564</span>
store.throttleCompaction(c.getRequest().getSize()) ? longCompactions :
shortCompactions;<a name="line.564"></a>
+<span class="sourceLineNo">565</span><a name="line.565"></a>
+<span class="sourceLineNo">566</span> // Long compaction pool can
process small job<a name="line.566"></a>
+<span class="sourceLineNo">567</span> // Short compaction pool should
not process large job<a name="line.567"></a>
+<span class="sourceLineNo">568</span> if (this.parent ==
shortCompactions && pool == longCompactions) {<a name="line.568"></a>
+<span class="sourceLineNo">569</span>
this.store.cancelRequestedCompaction(c);<a name="line.569"></a>
+<span class="sourceLineNo">570</span> this.parent = pool;<a
name="line.570"></a>
+<span class="sourceLineNo">571</span> this.parent.execute(this);<a
name="line.571"></a>
+<span class="sourceLineNo">572</span> return;<a name="line.572"></a>
+<span class="sourceLineNo">573</span> }<a name="line.573"></a>
+<span class="sourceLineNo">574</span> } else {<a name="line.574"></a>
+<span class="sourceLineNo">575</span> c = compaction.get();<a
name="line.575"></a>
+<span class="sourceLineNo">576</span> }<a name="line.576"></a>
+<span class="sourceLineNo">577</span> // Finally we can compact
something.<a name="line.577"></a>
+<span class="sourceLineNo">578</span> assert c != null;<a
name="line.578"></a>
+<span class="sourceLineNo">579</span><a name="line.579"></a>
+<span class="sourceLineNo">580</span>
c.getRequest().getTracker().beforeExecution(store);<a name="line.580"></a>
+<span class="sourceLineNo">581</span> try {<a name="line.581"></a>
+<span class="sourceLineNo">582</span> // Note: please don't put
single-compaction logic here;<a name="line.582"></a>
+<span class="sourceLineNo">583</span> // put it into
region/store/etc. This is CST logic.<a name="line.583"></a>
+<span class="sourceLineNo">584</span> long start =
EnvironmentEdgeManager.currentTime();<a name="line.584"></a>
+<span class="sourceLineNo">585</span> boolean completed =<a
name="line.585"></a>
+<span class="sourceLineNo">586</span> region.compact(c, store,
compactionThroughputController, user);<a name="line.586"></a>
+<span class="sourceLineNo">587</span> long now =
EnvironmentEdgeManager.currentTime();<a name="line.587"></a>
+<span class="sourceLineNo">588</span> LOG.info(((completed) ?
"Completed" : "Aborted") + " compaction: " +<a name="line.588"></a>
+<span class="sourceLineNo">589</span> this + "; duration=" +
StringUtils.formatTimeDiff(now, start));<a name="line.589"></a>
+<span class="sourceLineNo">590</span> if (completed) {<a
name="line.590"></a>
+<span class="sourceLineNo">591</span> // degenerate case: blocked
regions require recursive enqueues<a name="line.591"></a>
+<span class="sourceLineNo">592</span> if (store.getCompactPriority()
<= 0) {<a name="line.592"></a>
+<span class="sourceLineNo">593</span>
requestSystemCompaction(region, store, "Recursive enqueue");<a
name="line.593"></a>
+<span class="sourceLineNo">594</span> } else {<a name="line.594"></a>
+<span class="sourceLineNo">595</span> // see if the compaction has
caused us to exceed max region size<a name="line.595"></a>
+<span class="sourceLineNo">596</span> requestSplit(region);<a
name="line.596"></a>
+<span class="sourceLineNo">597</span> }<a name="line.597"></a>
+<span class="sourceLineNo">598</span> }<a name="line.598"></a>
+<span class="sourceLineNo">599</span> } catch (IOException ex) {<a
name="line.599"></a>
+<span class="sourceLineNo">600</span> IOException remoteEx =<a
name="line.600"></a>
+<span class="sourceLineNo">601</span> ex instanceof RemoteException
? ((RemoteException) ex).unwrapRemoteException() : ex;<a name="line.601"></a>
+<span class="sourceLineNo">602</span> LOG.error("Compaction failed " +
this, remoteEx);<a name="line.602"></a>
+<span class="sourceLineNo">603</span> if (remoteEx != ex) {<a
name="line.603"></a>
+<span class="sourceLineNo">604</span> LOG.info("Compaction failed at
original callstack: " + formatStackTrace(ex));<a name="line.604"></a>
+<span class="sourceLineNo">605</span> }<a name="line.605"></a>
+<span class="sourceLineNo">606</span>
region.reportCompactionRequestFailure();<a name="line.606"></a>
+<span class="sourceLineNo">607</span> server.checkFileSystem();<a
name="line.607"></a>
+<span class="sourceLineNo">608</span> } catch (Exception ex) {<a
name="line.608"></a>
+<span class="sourceLineNo">609</span> LOG.error("Compaction failed " +
this, ex);<a name="line.609"></a>
+<span class="sourceLineNo">610</span>
region.reportCompactionRequestFailure();<a name="line.610"></a>
+<span class="sourceLineNo">611</span> server.checkFileSystem();<a
name="line.611"></a>
+<span class="sourceLineNo">612</span> } finally {<a name="line.612"></a>
+<span class="sourceLineNo">613</span>
c.getRequest().getTracker().afterExecution(store);<a name="line.613"></a>
+<span class="sourceLineNo">614</span>
region.decrementCompactionsQueuedCount();<a name="line.614"></a>
+<span class="sourceLineNo">615</span> LOG.debug("CompactSplitThread
Status: " + CompactSplit.this);<a name="line.615"></a>
+<span class="sourceLineNo">616</span> }<a name="line.616"></a>
+<span class="sourceLineNo">617</span> }<a name="line.617"></a>
+<span class="sourceLineNo">618</span><a name="line.618"></a>
+<span class="sourceLineNo">619</span> @Override<a name="line.619"></a>
+<span class="sourceLineNo">620</span> public void run() {<a
name="line.620"></a>
+<span class="sourceLineNo">621</span>
Preconditions.checkNotNull(server);<a name="line.621"></a>
+<span class="sourceLineNo">622</span> if (server.isStopped()<a
name="line.622"></a>
+<span class="sourceLineNo">623</span> || (region.getTableDescriptor()
!= null && !region.getTableDescriptor().isCompactionEnabled())) {<a
name="line.623"></a>
+<span class="sourceLineNo">624</span>
region.decrementCompactionsQueuedCount();<a name="line.624"></a>
+<span class="sourceLineNo">625</span> return;<a name="line.625"></a>
+<span class="sourceLineNo">626</span> }<a name="line.626"></a>
+<span class="sourceLineNo">627</span> doCompaction(user);<a
name="line.627"></a>
+<span class="sourceLineNo">628</span> }<a name="line.628"></a>
+<span class="sourceLineNo">629</span><a name="line.629"></a>
+<span class="sourceLineNo">630</span> private String
formatStackTrace(Exception ex) {<a name="line.630"></a>
+<span class="sourceLineNo">631</span> StringWriter sw = new
StringWriter();<a name="line.631"></a>
+<span class="sourceLineNo">632</span> PrintWriter pw = new
PrintWriter(sw);<a name="line.632"></a>
+<span class="sourceLineNo">633</span> ex.printStackTrace(pw);<a
name="line.633"></a>
+<span class="sourceLineNo">634</span> pw.flush();<a name="line.634"></a>
+<span class="sourceLineNo">635</span> return sw.toString();<a
name="line.635"></a>
+<span class="sourceLineNo">636</span> }<a name="line.636"></a>
+<span class="sourceLineNo">637</span> }<a name="line.637"></a>
+<span class="sourceLineNo">638</span><a name="line.638"></a>
+<span class="sourceLineNo">639</span> /**<a name="line.639"></a>
+<span class="sourceLineNo">640</span> * Cleanup class to use when rejecting
a compaction request from the queue.<a name="line.640"></a>
+<span class="sourceLineNo">641</span> */<a name="line.641"></a>
+<span class="sourceLineNo">642</span> private static class Rejection
implements RejectedExecutionHandler {<a name="line.642"></a>
+<span class="sourceLineNo">643</span> @Override<a name="line.643"></a>
+<span class="sourceLineNo">644</span> public void
rejectedExecution(Runnable runnable, ThreadPoolExecutor pool) {<a
name="line.644"></a>
+<span class="sourceLineNo">645</span> if (runnable instanceof
CompactionRunner) {<a name="line.645"></a>
+<span class="sourceLineNo">646</span> CompactionRunner runner =
(CompactionRunner) runnable;<a name="line.646"></a>
+<span class="sourceLineNo">647</span> LOG.debug("Compaction Rejected: "
+ runner);<a name="line.647"></a>
+<span class="sourceLineNo">648</span> runner.compaction.ifPresent(c
-> runner.store.cancelRequestedCompaction(c));<a name="line.648"></a>
+<span class="sourceLineNo">649</span> }<a name="line.649"></a>
+<span class="sourceLineNo">650</span> }<a name="line.650"></a>
+<span class="sourceLineNo">651</span> }<a name="line.651"></a>
+<span class="sourceLineNo">652</span><a name="line.652"></a>
+<span class="sourceLineNo">653</span> /**<a name="line.653"></a>
+<span class="sourceLineNo">654</span> * {@inheritDoc}<a name="line.654"></a>
+<span class="sourceLineNo">655</span> */<a name="line.655"></a>
+<span class="sourceLineNo">656</span> @Override<a name="line.656"></a>
+<span class="sourceLineNo">657</span> public void
onConfigurationChange(Configuration newConf) {<a name="line.657"></a>
+<span class="sourceLineNo">658</span> // Check if number of large / small
compaction threads has changed, and then<a name="line.658"></a>
+<span class="sourceLineNo">659</span> // adjust the core pool size of the
thread pools, by using the<a name="line.659"></a>
+<span class="sourceLineNo">660</span> // setCorePoolSize() method.
According to the javadocs, it is safe to<a name="line.660"></a>
+<span class="sourceLineNo">661</span> // change the core pool size
on-the-fly. We need to reset the maximum<a name="line.661"></a>
+<span class="sourceLineNo">662</span> // pool size, as well.<a
name="line.662"></a>
+<span class="sourceLineNo">663</span> int largeThreads = Math.max(1,
newConf.getInt(<a name="line.663"></a>
+<span class="sourceLineNo">664</span> LARGE_COMPACTION_THREADS,<a
name="line.664"></a>
+<span class="sourceLineNo">665</span>
LARGE_COMPACTION_THREADS_DEFAULT));<a name="line.665"></a>
+<span class="sourceLineNo">666</span> if
(this.longCompactions.getCorePoolSize() != largeThreads) {<a
name="line.666"></a>
+<span class="sourceLineNo">667</span> LOG.info("Changing the value of " +
LARGE_COMPACTION_THREADS +<a name="line.667"></a>
+<span class="sourceLineNo">668</span> " from " +
this.longCompactions.getCorePoolSize() + " to " +<a name="line.668"></a>
+<span class="sourceLineNo">669</span> largeThreads);<a
name="line.669"></a>
+<span class="sourceLineNo">670</span>
if(this.longCompactions.getCorePoolSize() < largeThreads) {<a
name="line.670"></a>
+<span class="sourceLineNo">671</span>
this.longCompactions.setMaximumPoolSize(largeThreads);<a name="line.671"></a>
+<span class="sourceLineNo">672</span>
this.longCompactions.setCorePoolSize(largeThreads);<a name="line.672"></a>
+<span class="sourceLineNo">673</span> } else {<a name="line.673"></a>
+<span class="sourceLineNo">674</span>
this.longCompactions.setCorePoolSize(largeThreads);<a name="line.674"></a>
+<span class="sourceLineNo">675</span>
this.longCompactions.setMaximumPoolSize(largeThreads);<a name="line.675"></a>
+<span class="sourceLineNo">676</span> }<a name="line.676"></a>
+<span class="sourceLineNo">677</span> }<a name="line.677"></a>
+<span class="sourceLineNo">678</span><a name="line.678"></a>
+<span class="sourceLineNo">679</span> int smallThreads =
newConf.getInt(SMALL_COMPACTION_THREADS,<a name="line.679"></a>
+<span class="sourceLineNo">680</span>
SMALL_COMPACTION_THREADS_DEFAULT);<a name="line.680"></a>
+<span class="sourceLineNo">681</span> if
(this.shortCompactions.getCorePoolSize() != smallThreads) {<a
name="line.681"></a>
+<span class="sourceLineNo">682</span> LOG.info("Changing the value of " +
SMALL_COMPACTION_THREADS +<a name="line.682"></a>
+<span class="sourceLineNo">683</span> " from " +
this.shortCompactions.getCorePoolSize() + " to " +<a name="line.683"></a>
+<span class="sourceLineNo">684</span> smallThreads);<a
name="line.684"></a>
+<span class="sourceLineNo">685</span>
if(this.shortCompactions.getCorePoolSize() < smallThreads) {<a
name="line.685"></a>
+<span class="sourceLineNo">686</span>
this.shortCompactions.setMaximumPoolSize(smallThreads);<a name="line.686"></a>
+<span class="sourceLineNo">687</span>
this.shortCompactions.setCorePoolSize(smallThreads);<a name="line.687"></a>
+<span class="sourceLineNo">688</span> } else {<a name="line.688"></a>
+<span class="sourceLineNo">689</span>
this.shortCompactions.setCorePoolSize(smallThreads);<a name="line.689"></a>
+<span class="sourceLineNo">690</span>
this.shortCompactions.setMaximumPoolSize(smallThreads);<a name="line.690"></a>
+<span class="sourceLineNo">691</span> }<a name="line.691"></a>
+<span class="sourceLineNo">692</span> }<a name="line.692"></a>
+<span class="sourceLineNo">693</span><a name="line.693"></a>
+<span class="sourceLineNo">694</span> int splitThreads =
newConf.getInt(SPLIT_THREADS,<a name="line.694"></a>
+<span class="sourceLineNo">695</span> SPLIT_THREADS_DEFAULT);<a
name="line.695"></a>
+<span class="sourceLineNo">696</span> if (this.splits.getCorePoolSize() !=
splitThreads) {<a name="line.696"></a>
+<span class="sourceLineNo">697</span> LOG.info("Changing the value of " +
SPLIT_THREADS +<a name="line.697"></a>
+<span class="sourceLineNo">698</span> " from " +
this.splits.getCorePoolSize() + " to " +<a name="line.698"></a>
+<span class="sourceLineNo">699</span> splitThreads);<a
name="line.699"></a>
+<span class="sourceLineNo">700</span> if(this.splits.getCorePoolSize()
< splitThreads) {<a name="line.700"></a>
+<span class="sourceLineNo">701</span>
this.splits.setMaximumPoolSize(splitThreads);<a name="line.701"></a>
+<span class="sourceLineNo">702</span>
this.splits.setCorePoolSize(splitThreads);<a name="line.702"></a>
+<span class="sourceLineNo">703</span> } else {<a name="line.703"></a>
+<span class="sourceLineNo">704</span>
this.splits.setCorePoolSize(splitThreads);<a name="line.704"></a>
+<span class="sourceLineNo">705</span>
this.splits.setMaximumPoolSize(splitThreads);<a name="line.705"></a>
+<span class="sourceLineNo">706</span> }<a name="line.706"></a>
+<span class="sourceLineNo">707</span> }<a name="line.707"></a>
+<span class="sourceLineNo">708</span><a name="line.708"></a>
+<span class="sourceLineNo">709</span> ThroughputController old =
this.compactionThroughputController;<a name="line.709"></a>
+<span class="sourceLineNo">710</span> if (old != null) {<a
name="line.710"></a>
+<span class="sourceLineNo">711</span> old.stop("configuration change");<a
name="line.711"></a>
+<span class="sourceLineNo">712</span> }<a name="line.712"></a>
+<span class="sourceLineNo">713</span> this.compactionThroughputController
=<a name="line.713"></a>
+<span class="sourceLineNo">714</span>
CompactionThroughputControllerFactory.create(server, newConf);<a
name="line.714"></a>
+<span class="sourceLineNo">715</span><a name="line.715"></a>
+<span class="sourceLineNo">716</span> // We change this atomically here
instead of reloading the config in order that upstream<a name="line.716"></a>
+<span class="sourceLineNo">717</span> // would be the only one with the
flexibility to reload the config.<a name="line.717"></a>
+<span class="sourceLineNo">718</span> this.conf.reloadConfiguration();<a
name="line.718"></a>
+<span class="sourceLineNo">719</span> }<a name="line.719"></a>
+<span class="sourceLineNo">720</span><a name="line.720"></a>
+<span class="sourceLineNo">721</span> protected int
getSmallCompactionThreadNum() {<a name="line.721"></a>
+<span class="sourceLineNo">722</span> return
this.shortCompactions.getCorePoolSize();<a name="line.722"></a>
+<span class="sourceLineNo">723</span> }<a name="line.723"></a>
+<span class="sourceLineNo">724</span><a name="line.724"></a>
+<span class="sourceLineNo">725</span> protected int
getLargeCompactionThreadNum() {<a name="line.725"></a>
+<span class="sourceLineNo">726</span> return
this.longCompactions.getCorePoolSize();<a name="line.726"></a>
+<span class="sourceLineNo">727</span> }<a name="line.727"></a>
+<span class="sourceLineNo">728</span><a name="line.728"></a>
+<span class="sourceLineNo">729</span> protected int getSplitThreadNum() {<a
name="line.729"></a>
+<span class="sourceLineNo">730</span> return
this.splits.getCorePoolSize();<a name="line.730"></a>
+<span class="sourceLineNo">731</span> }<a name="line.731"></a>
+<span class="sourceLineNo">732</span><a name="line.732"></a>
+<span class="sourceLineNo">733</span> /**<a name="line.733"></a>
+<span class="sourceLineNo">734</span> * {@inheritDoc}<a name="line.734"></a>
+<span class="sourceLineNo">735</span> */<a name="line.735"></a>
+<span class="sourceLineNo">736</span> @Override<a name="line.736"></a>
+<span class="sourceLineNo">737</span> public void
registerChildren(ConfigurationManager manager) {<a name="line.737"></a>
+<span class="sourceLineNo">738</span> // No children to register.<a
name="line.738"></a>
+<span class="sourceLineNo">739</span> }<a name="line.739"></a>
+<span class="sourceLineNo">740</span><a name="line.740"></a>
+<span class="sourceLineNo">741</span> /**<a name="line.741"></a>
+<span class="sourceLineNo">742</span> * {@inheritDoc}<a name="line.742"></a>
+<span class="sourceLineNo">743</span> */<a name="line.743"></a>
+<span class="sourceLineNo">744</span> @Override<a name="line.744"></a>
+<span class="sourceLineNo">745</span> public void
deregisterChildren(ConfigurationManager manager) {<a name="line.745"></a>
+<span class="sourceLineNo">746</span> // No children to register<a
name="line.746"></a>
+<span class="sourceLineNo">747</span> }<a name="line.747"></a>
+<span class="sourceLineNo">748</span><a name="line.748"></a>
+<span class="sourceLineNo">749</span> @VisibleForTesting<a
name="line.749"></a>
+<span class="sourceLineNo">750</span> public ThroughputController
getCompactionThroughputController() {<a name="line.750"></a>
+<span class="sourceLineNo">751</span> return
compactionThroughputController;<a name="line.751"></a>
+<span class="sourceLineNo">752</span> }<a name="line.752"></a>
+<span class="sourceLineNo">753</span><a name="line.753"></a>
+<span class="sourceLineNo">754</span> @VisibleForTesting<a
name="line.754"></a>
+<span class="sourceLineNo">755</span> /**<a name="line.755"></a>
+<span class="sourceLineNo">756</span> * Shutdown the long compaction thread
pool.<a name="line.756"></a>
+<span class="sourceLineNo">757</span> * Should only be used in unit test to
prevent long compaction thread pool from stealing job<a name="line.757"></a>
+<span class="sourceLineNo">758</span> * from short compaction queue<a
name="line.758"></a>
+<span class="sourceLineNo">759</span> */<a name="line.759"></a>
+<span class="sourceLineNo">760</span> void shutdownLongCompactions(){<a
name="line.760"></a>
+<span class="sourceLineNo">761</span> this.longCompactions.shutdown();<a
name="line.761"></a>
+<span class="sourceLineNo">762</span> }<a name="line.762"></a>
+<span class="sourceLineNo">763</span><a name="line.763"></a>
+<span class="sourceLineNo">764</span> public void clearLongCompactionsQueue()
{<a name="line.764"></a>
+<span class="sourceLineNo">765</span> longCompactions.getQueue().clear();<a
name="line.765"></a>
+<span class="sourceLineNo">766</span> }<a name="line.766"></a>
+<span class="sourceLineNo">767</span><a name="line.767"></a>
+<span class="sourceLineNo">768</span> public void
clearShortCompactionsQueue() {<a name="line.768"></a>
+<span class="sourceLineNo">769</span>
shortCompactions.getQueue().clear();<a name="line.769"></a>
+<span class="sourceLineNo">770</span> }<a name="line.770"></a>
+<span class="sourceLineNo">771</span>}<a name="line.771"></a>
+
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+</pre>
+</div>
+</body>
+</html>
