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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.regionserver;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.util.Map;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.Set;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.concurrent.BlockingQueue;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.concurrent.ConcurrentHashMap;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.concurrent.Executors;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.concurrent.LinkedBlockingQueue;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.concurrent.ScheduledExecutorService;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.concurrent.atomic.AtomicInteger;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.concurrent.atomic.AtomicLong;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.concurrent.atomic.LongAdder;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.regionserver.HeapMemoryManager.HeapMemoryTuneObserver;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.util.StringUtils;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.slf4j.Logger;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">037</span><span id="line-37"></span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40">/**</span> |
| <span class="source-line-no">041</span><span id="line-41"> * Does the management of memstoreLAB chunk creations. A monotonically incrementing id is associated</span> |
| <span class="source-line-no">042</span><span id="line-42"> * with every chunk</span> |
| <span class="source-line-no">043</span><span id="line-43"> */</span> |
| <span class="source-line-no">044</span><span id="line-44">@InterfaceAudience.Private</span> |
| <span class="source-line-no">045</span><span id="line-45">public class ChunkCreator {</span> |
| <span class="source-line-no">046</span><span id="line-46"> private static final Logger LOG = LoggerFactory.getLogger(ChunkCreator.class);</span> |
| <span class="source-line-no">047</span><span id="line-47"> // monotonically increasing chunkid. Starts at 1.</span> |
| <span class="source-line-no">048</span><span id="line-48"> private AtomicInteger chunkID = new AtomicInteger(1);</span> |
| <span class="source-line-no">049</span><span id="line-49"> // maps the chunk against the monotonically increasing chunk id. We need to preserve the</span> |
| <span class="source-line-no">050</span><span id="line-50"> // natural ordering of the key</span> |
| <span class="source-line-no">051</span><span id="line-51"> // CellChunkMap creation should convert the weak ref to hard reference</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> // chunk id of each chunk is the first integer written on each chunk,</span> |
| <span class="source-line-no">054</span><span id="line-54"> // the header size need to be changed in case chunk id size is changed</span> |
| <span class="source-line-no">055</span><span id="line-55"> public static final int SIZEOF_CHUNK_HEADER = Bytes.SIZEOF_INT;</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> /**</span> |
| <span class="source-line-no">058</span><span id="line-58"> * Types of chunks, based on their sizes</span> |
| <span class="source-line-no">059</span><span id="line-59"> */</span> |
| <span class="source-line-no">060</span><span id="line-60"> public enum ChunkType {</span> |
| <span class="source-line-no">061</span><span id="line-61"> // An index chunk is a small chunk, allocated from the index chunks pool.</span> |
| <span class="source-line-no">062</span><span id="line-62"> // Its size is fixed and is 10% of the size of a data chunk.</span> |
| <span class="source-line-no">063</span><span id="line-63"> INDEX_CHUNK,</span> |
| <span class="source-line-no">064</span><span id="line-64"> // A data chunk is a regular chunk, allocated from the data chunks pool.</span> |
| <span class="source-line-no">065</span><span id="line-65"> // Its size is fixed and given as input to the ChunkCreator c'tor.</span> |
| <span class="source-line-no">066</span><span id="line-66"> DATA_CHUNK,</span> |
| <span class="source-line-no">067</span><span id="line-67"> // A jumbo chunk isn't allocated from pool. Its size is bigger than the size of a</span> |
| <span class="source-line-no">068</span><span id="line-68"> // data chunk, and is determined per chunk (meaning, there is no fixed jumbo size).</span> |
| <span class="source-line-no">069</span><span id="line-69"> JUMBO_CHUNK</span> |
| <span class="source-line-no">070</span><span id="line-70"> }</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> // mapping from chunk IDs to chunks</span> |
| <span class="source-line-no">073</span><span id="line-73"> private Map<Integer, Chunk> chunkIdMap = new ConcurrentHashMap<Integer, Chunk>();</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> private final boolean offheap;</span> |
| <span class="source-line-no">076</span><span id="line-76"> static ChunkCreator instance;</span> |
| <span class="source-line-no">077</span><span id="line-77"> static boolean chunkPoolDisabled = false;</span> |
| <span class="source-line-no">078</span><span id="line-78"> private MemStoreChunkPool dataChunksPool;</span> |
| <span class="source-line-no">079</span><span id="line-79"> private final int chunkSize;</span> |
| <span class="source-line-no">080</span><span id="line-80"> private int indexChunkSize;</span> |
| <span class="source-line-no">081</span><span id="line-81"> private MemStoreChunkPool indexChunksPool;</span> |
| <span class="source-line-no">082</span><span id="line-82"></span> |
| <span class="source-line-no">083</span><span id="line-83"> ChunkCreator(int chunkSize, boolean offheap, long globalMemStoreSize, float poolSizePercentage,</span> |
| <span class="source-line-no">084</span><span id="line-84"> float initialCountPercentage, HeapMemoryManager heapMemoryManager,</span> |
| <span class="source-line-no">085</span><span id="line-85"> float indexChunkSizePercentage) {</span> |
| <span class="source-line-no">086</span><span id="line-86"> this.offheap = offheap;</span> |
| <span class="source-line-no">087</span><span id="line-87"> this.chunkSize = chunkSize; // in case pools are not allocated</span> |
| <span class="source-line-no">088</span><span id="line-88"> initializePools(chunkSize, globalMemStoreSize, poolSizePercentage, indexChunkSizePercentage,</span> |
| <span class="source-line-no">089</span><span id="line-89"> initialCountPercentage, heapMemoryManager);</span> |
| <span class="source-line-no">090</span><span id="line-90"> }</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 void initializePools(int chunkSize, long globalMemStoreSize, float poolSizePercentage,</span> |
| <span class="source-line-no">093</span><span id="line-93"> float indexChunkSizePercentage, float initialCountPercentage,</span> |
| <span class="source-line-no">094</span><span id="line-94"> HeapMemoryManager heapMemoryManager) {</span> |
| <span class="source-line-no">095</span><span id="line-95"> this.dataChunksPool = initializePool("data", globalMemStoreSize,</span> |
| <span class="source-line-no">096</span><span id="line-96"> (1 - indexChunkSizePercentage) * poolSizePercentage, initialCountPercentage, chunkSize,</span> |
| <span class="source-line-no">097</span><span id="line-97"> ChunkType.DATA_CHUNK, heapMemoryManager);</span> |
| <span class="source-line-no">098</span><span id="line-98"> // The index chunks pool is needed only when the index type is CCM.</span> |
| <span class="source-line-no">099</span><span id="line-99"> // Since the pools are not created at all when the index type isn't CCM,</span> |
| <span class="source-line-no">100</span><span id="line-100"> // we don't need to check it here.</span> |
| <span class="source-line-no">101</span><span id="line-101"> this.indexChunkSize = (int) (indexChunkSizePercentage * chunkSize);</span> |
| <span class="source-line-no">102</span><span id="line-102"> this.indexChunksPool =</span> |
| <span class="source-line-no">103</span><span id="line-103"> initializePool("index", globalMemStoreSize, indexChunkSizePercentage * poolSizePercentage,</span> |
| <span class="source-line-no">104</span><span id="line-104"> initialCountPercentage, this.indexChunkSize, ChunkType.INDEX_CHUNK, heapMemoryManager);</span> |
| <span class="source-line-no">105</span><span id="line-105"> }</span> |
| <span class="source-line-no">106</span><span id="line-106"></span> |
| <span class="source-line-no">107</span><span id="line-107"> /**</span> |
| <span class="source-line-no">108</span><span id="line-108"> * Initializes the instance of ChunkCreator</span> |
| <span class="source-line-no">109</span><span id="line-109"> * @param chunkSize the chunkSize</span> |
| <span class="source-line-no">110</span><span id="line-110"> * @param offheap indicates if the chunk is to be created offheap or not</span> |
| <span class="source-line-no">111</span><span id="line-111"> * @param globalMemStoreSize the global memstore size</span> |
| <span class="source-line-no">112</span><span id="line-112"> * @param poolSizePercentage pool size percentage</span> |
| <span class="source-line-no">113</span><span id="line-113"> * @param initialCountPercentage the initial count of the chunk pool if any</span> |
| <span class="source-line-no">114</span><span id="line-114"> * @param heapMemoryManager the heapmemory manager</span> |
| <span class="source-line-no">115</span><span id="line-115"> * @return singleton MSLABChunkCreator</span> |
| <span class="source-line-no">116</span><span id="line-116"> */</span> |
| <span class="source-line-no">117</span><span id="line-117"> @edu.umd.cs.findbugs.annotations.SuppressWarnings(</span> |
| <span class="source-line-no">118</span><span id="line-118"> value = { "LI_LAZY_INIT_STATIC", "MS_EXPOSE_REP" },</span> |
| <span class="source-line-no">119</span><span id="line-119"> justification = "Method is called by single thread at the starting of RS")</span> |
| <span class="source-line-no">120</span><span id="line-120"> public static ChunkCreator initialize(int chunkSize, boolean offheap, long globalMemStoreSize,</span> |
| <span class="source-line-no">121</span><span id="line-121"> float poolSizePercentage, float initialCountPercentage, HeapMemoryManager heapMemoryManager,</span> |
| <span class="source-line-no">122</span><span id="line-122"> float indexChunkSizePercent) {</span> |
| <span class="source-line-no">123</span><span id="line-123"> if (instance != null) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> return instance;</span> |
| <span class="source-line-no">125</span><span id="line-125"> }</span> |
| <span class="source-line-no">126</span><span id="line-126"> instance = new ChunkCreator(chunkSize, offheap, globalMemStoreSize, poolSizePercentage,</span> |
| <span class="source-line-no">127</span><span id="line-127"> initialCountPercentage, heapMemoryManager, indexChunkSizePercent);</span> |
| <span class="source-line-no">128</span><span id="line-128"> return instance;</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130"></span> |
| <span class="source-line-no">131</span><span id="line-131"> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "MS_EXPOSE_REP",</span> |
| <span class="source-line-no">132</span><span id="line-132"> justification = "singleton pattern")</span> |
| <span class="source-line-no">133</span><span id="line-133"> public static ChunkCreator getInstance() {</span> |
| <span class="source-line-no">134</span><span id="line-134"> return instance;</span> |
| <span class="source-line-no">135</span><span id="line-135"> }</span> |
| <span class="source-line-no">136</span><span id="line-136"></span> |
| <span class="source-line-no">137</span><span id="line-137"> /**</span> |
| <span class="source-line-no">138</span><span id="line-138"> * Creates and inits a data chunk. The default implementation.</span> |
| <span class="source-line-no">139</span><span id="line-139"> * @return the chunk that was initialized</span> |
| <span class="source-line-no">140</span><span id="line-140"> */</span> |
| <span class="source-line-no">141</span><span id="line-141"> Chunk getChunk() {</span> |
| <span class="source-line-no">142</span><span id="line-142"> return getChunk(ChunkType.DATA_CHUNK);</span> |
| <span class="source-line-no">143</span><span id="line-143"> }</span> |
| <span class="source-line-no">144</span><span id="line-144"></span> |
| <span class="source-line-no">145</span><span id="line-145"> /**</span> |
| <span class="source-line-no">146</span><span id="line-146"> * Creates and inits a chunk with specific type.</span> |
| <span class="source-line-no">147</span><span id="line-147"> * @return the chunk that was initialized</span> |
| <span class="source-line-no">148</span><span id="line-148"> */</span> |
| <span class="source-line-no">149</span><span id="line-149"> Chunk getChunk(ChunkType chunkType) {</span> |
| <span class="source-line-no">150</span><span id="line-150"> switch (chunkType) {</span> |
| <span class="source-line-no">151</span><span id="line-151"> case INDEX_CHUNK:</span> |
| <span class="source-line-no">152</span><span id="line-152"> if (indexChunksPool == null) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> if (indexChunkSize <= 0) {</span> |
| <span class="source-line-no">154</span><span id="line-154"> throw new IllegalArgumentException(</span> |
| <span class="source-line-no">155</span><span id="line-155"> "chunkType is INDEX_CHUNK but indexChunkSize is:[" + this.indexChunkSize + "]");</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 getChunk(chunkType, indexChunkSize);</span> |
| <span class="source-line-no">158</span><span id="line-158"> } else {</span> |
| <span class="source-line-no">159</span><span id="line-159"> return getChunk(chunkType, indexChunksPool.getChunkSize());</span> |
| <span class="source-line-no">160</span><span id="line-160"> }</span> |
| <span class="source-line-no">161</span><span id="line-161"> case DATA_CHUNK:</span> |
| <span class="source-line-no">162</span><span id="line-162"> if (dataChunksPool == null) {</span> |
| <span class="source-line-no">163</span><span id="line-163"> return getChunk(chunkType, chunkSize);</span> |
| <span class="source-line-no">164</span><span id="line-164"> } else {</span> |
| <span class="source-line-no">165</span><span id="line-165"> return getChunk(chunkType, dataChunksPool.getChunkSize());</span> |
| <span class="source-line-no">166</span><span id="line-166"> }</span> |
| <span class="source-line-no">167</span><span id="line-167"> default:</span> |
| <span class="source-line-no">168</span><span id="line-168"> throw new IllegalArgumentException("chunkType must either be INDEX_CHUNK or DATA_CHUNK");</span> |
| <span class="source-line-no">169</span><span id="line-169"> }</span> |
| <span class="source-line-no">170</span><span id="line-170"> }</span> |
| <span class="source-line-no">171</span><span id="line-171"></span> |
| <span class="source-line-no">172</span><span id="line-172"> /**</span> |
| <span class="source-line-no">173</span><span id="line-173"> * Creates and inits a chunk.</span> |
| <span class="source-line-no">174</span><span id="line-174"> * @return the chunk that was initialized</span> |
| <span class="source-line-no">175</span><span id="line-175"> * @param size the size of the chunk to be allocated, in bytes</span> |
| <span class="source-line-no">176</span><span id="line-176"> */</span> |
| <span class="source-line-no">177</span><span id="line-177"> Chunk getChunk(ChunkType chunkType, int size) {</span> |
| <span class="source-line-no">178</span><span id="line-178"> Chunk chunk = null;</span> |
| <span class="source-line-no">179</span><span id="line-179"> MemStoreChunkPool pool = null;</span> |
| <span class="source-line-no">180</span><span id="line-180"></span> |
| <span class="source-line-no">181</span><span id="line-181"> // if it is one of the pools</span> |
| <span class="source-line-no">182</span><span id="line-182"> if (dataChunksPool != null && chunkType == ChunkType.DATA_CHUNK) {</span> |
| <span class="source-line-no">183</span><span id="line-183"> pool = dataChunksPool;</span> |
| <span class="source-line-no">184</span><span id="line-184"> } else if (indexChunksPool != null && chunkType == ChunkType.INDEX_CHUNK) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> pool = indexChunksPool;</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"> // if we have a pool</span> |
| <span class="source-line-no">189</span><span id="line-189"> if (pool != null) {</span> |
| <span class="source-line-no">190</span><span id="line-190"> // the pool creates the chunk internally. The chunk#init() call happens here</span> |
| <span class="source-line-no">191</span><span id="line-191"> chunk = pool.getChunk();</span> |
| <span class="source-line-no">192</span><span id="line-192"> // the pool has run out of maxCount</span> |
| <span class="source-line-no">193</span><span id="line-193"> if (chunk == null) {</span> |
| <span class="source-line-no">194</span><span id="line-194"> if (LOG.isTraceEnabled()) {</span> |
| <span class="source-line-no">195</span><span id="line-195"> LOG.trace("The chunk pool is full. Reached maxCount= " + pool.getMaxCount()</span> |
| <span class="source-line-no">196</span><span id="line-196"> + ". Creating chunk onheap.");</span> |
| <span class="source-line-no">197</span><span id="line-197"> }</span> |
| <span class="source-line-no">198</span><span id="line-198"> }</span> |
| <span class="source-line-no">199</span><span id="line-199"> }</span> |
| <span class="source-line-no">200</span><span id="line-200"></span> |
| <span class="source-line-no">201</span><span id="line-201"> if (chunk == null) {</span> |
| <span class="source-line-no">202</span><span id="line-202"> chunk = createChunk(false, chunkType, size);</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"> // now we need to actually do the expensive memory allocation step in case of a new chunk,</span> |
| <span class="source-line-no">206</span><span id="line-206"> // else only the offset is set to the beginning of the chunk to accept allocations</span> |
| <span class="source-line-no">207</span><span id="line-207"> chunk.init();</span> |
| <span class="source-line-no">208</span><span id="line-208"> return chunk;</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"> * Creates and inits a chunk of a special size, bigger than a regular chunk size. Such a chunk</span> |
| <span class="source-line-no">213</span><span id="line-213"> * will never come from pool and will always be on demand allocated.</span> |
| <span class="source-line-no">214</span><span id="line-214"> * @return the chunk that was initialized</span> |
| <span class="source-line-no">215</span><span id="line-215"> * @param jumboSize the special size to be used</span> |
| <span class="source-line-no">216</span><span id="line-216"> */</span> |
| <span class="source-line-no">217</span><span id="line-217"> Chunk getJumboChunk(int jumboSize) {</span> |
| <span class="source-line-no">218</span><span id="line-218"> int allocSize = jumboSize + SIZEOF_CHUNK_HEADER;</span> |
| <span class="source-line-no">219</span><span id="line-219"></span> |
| <span class="source-line-no">220</span><span id="line-220"> if (allocSize <= this.getChunkSize(ChunkType.DATA_CHUNK)) {</span> |
| <span class="source-line-no">221</span><span id="line-221"> LOG.warn("Jumbo chunk size " + jumboSize + " must be more than regular chunk size "</span> |
| <span class="source-line-no">222</span><span id="line-222"> + this.getChunkSize(ChunkType.DATA_CHUNK) + ". Converting to regular chunk.");</span> |
| <span class="source-line-no">223</span><span id="line-223"> return getChunk();</span> |
| <span class="source-line-no">224</span><span id="line-224"> }</span> |
| <span class="source-line-no">225</span><span id="line-225"> // the new chunk is going to hold the jumbo cell data and needs to be referenced by</span> |
| <span class="source-line-no">226</span><span id="line-226"> // a strong map.</span> |
| <span class="source-line-no">227</span><span id="line-227"> return getChunk(ChunkType.JUMBO_CHUNK, allocSize);</span> |
| <span class="source-line-no">228</span><span id="line-228"> }</span> |
| <span class="source-line-no">229</span><span id="line-229"></span> |
| <span class="source-line-no">230</span><span id="line-230"> /**</span> |
| <span class="source-line-no">231</span><span id="line-231"> * Creates the chunk either onheap or offheap</span> |
| <span class="source-line-no">232</span><span id="line-232"> * @param pool indicates if the chunks have to be created which will be used by the Pool</span> |
| <span class="source-line-no">233</span><span id="line-233"> * @param chunkType whether the requested chunk is data chunk or index chunk.</span> |
| <span class="source-line-no">234</span><span id="line-234"> * @param size the size of the chunk to be allocated, in bytes</span> |
| <span class="source-line-no">235</span><span id="line-235"> * @return the chunk</span> |
| <span class="source-line-no">236</span><span id="line-236"> */</span> |
| <span class="source-line-no">237</span><span id="line-237"> private Chunk createChunk(boolean pool, ChunkType chunkType, int size) {</span> |
| <span class="source-line-no">238</span><span id="line-238"> Chunk chunk = null;</span> |
| <span class="source-line-no">239</span><span id="line-239"> int id = chunkID.getAndIncrement();</span> |
| <span class="source-line-no">240</span><span id="line-240"> assert id > 0;</span> |
| <span class="source-line-no">241</span><span id="line-241"> // do not create offheap chunk on demand</span> |
| <span class="source-line-no">242</span><span id="line-242"> if (pool && this.offheap) {</span> |
| <span class="source-line-no">243</span><span id="line-243"> chunk = new OffheapChunk(size, id, chunkType, pool);</span> |
| <span class="source-line-no">244</span><span id="line-244"> } else {</span> |
| <span class="source-line-no">245</span><span id="line-245"> chunk = new OnheapChunk(size, id, chunkType, pool);</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"> /**</span> |
| <span class="source-line-no">249</span><span id="line-249"> * Here we always put the chunk into the {@link ChunkCreator#chunkIdMap} no matter whether the</span> |
| <span class="source-line-no">250</span><span id="line-250"> * chunk is pooled or not. <br/></span> |
| <span class="source-line-no">251</span><span id="line-251"> * For {@link CompactingMemStore},because the chunk could only be acquired from</span> |
| <span class="source-line-no">252</span><span id="line-252"> * {@link ChunkCreator} through {@link MemStoreLABImpl}, and</span> |
| <span class="source-line-no">253</span><span id="line-253"> * {@link CompactingMemStore#indexType} could only be {@link IndexType.CHUNK_MAP} when using</span> |
| <span class="source-line-no">254</span><span id="line-254"> * {@link MemStoreLABImpl}, so we must put chunk into this {@link ChunkCreator#chunkIdMap} to</span> |
| <span class="source-line-no">255</span><span id="line-255"> * make sure the chunk could be got by chunkId.</span> |
| <span class="source-line-no">256</span><span id="line-256"> * <p></span> |
| <span class="source-line-no">257</span><span id="line-257"> * For {@link DefaultMemStore},it is also reasonable to put the chunk in</span> |
| <span class="source-line-no">258</span><span id="line-258"> * {@link ChunkCreator#chunkIdMap} because: <br/></span> |
| <span class="source-line-no">259</span><span id="line-259"> * 1.When the {@link MemStoreLAB} which created the chunk is not closed, this chunk is used by</span> |
| <span class="source-line-no">260</span><span id="line-260"> * the {@link Segment} which references this {@link MemStoreLAB}, so this chunk certainly should</span> |
| <span class="source-line-no">261</span><span id="line-261"> * not be GC-ed, putting the chunk in {@link ChunkCreator#chunkIdMap} does not prevent useless</span> |
| <span class="source-line-no">262</span><span id="line-262"> * chunk to be GC-ed. <br/></span> |
| <span class="source-line-no">263</span><span id="line-263"> * 2.When the {@link MemStoreLAB} which created the chunk is closed, and if the chunk is not</span> |
| <span class="source-line-no">264</span><span id="line-264"> * pooled, {@link ChunkCreator#removeChunk} is invoked to remove the chunk from this</span> |
| <span class="source-line-no">265</span><span id="line-265"> * {@link ChunkCreator#chunkIdMap}, so there is no memory leak.</span> |
| <span class="source-line-no">266</span><span id="line-266"> */</span> |
| <span class="source-line-no">267</span><span id="line-267"> this.chunkIdMap.put(chunk.getId(), chunk);</span> |
| <span class="source-line-no">268</span><span id="line-268"></span> |
| <span class="source-line-no">269</span><span id="line-269"> return chunk;</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271"></span> |
| <span class="source-line-no">272</span><span id="line-272"> // Chunks from pool are created covered with strong references anyway.</span> |
| <span class="source-line-no">273</span><span id="line-273"> private Chunk createChunkForPool(ChunkType chunkType, int chunkSize) {</span> |
| <span class="source-line-no">274</span><span id="line-274"> if (chunkSize != dataChunksPool.getChunkSize() && chunkSize != indexChunksPool.getChunkSize()) {</span> |
| <span class="source-line-no">275</span><span id="line-275"> return null;</span> |
| <span class="source-line-no">276</span><span id="line-276"> }</span> |
| <span class="source-line-no">277</span><span id="line-277"> return createChunk(true, chunkType, chunkSize);</span> |
| <span class="source-line-no">278</span><span id="line-278"> }</span> |
| <span class="source-line-no">279</span><span id="line-279"></span> |
| <span class="source-line-no">280</span><span id="line-280"> // Used to translate the ChunkID into a chunk ref</span> |
| <span class="source-line-no">281</span><span id="line-281"> Chunk getChunk(int id) {</span> |
| <span class="source-line-no">282</span><span id="line-282"> // can return null if chunk was never mapped</span> |
| <span class="source-line-no">283</span><span id="line-283"> return chunkIdMap.get(id);</span> |
| <span class="source-line-no">284</span><span id="line-284"> }</span> |
| <span class="source-line-no">285</span><span id="line-285"></span> |
| <span class="source-line-no">286</span><span id="line-286"> boolean isOffheap() {</span> |
| <span class="source-line-no">287</span><span id="line-287"> return this.offheap;</span> |
| <span class="source-line-no">288</span><span id="line-288"> }</span> |
| <span class="source-line-no">289</span><span id="line-289"></span> |
| <span class="source-line-no">290</span><span id="line-290"> private void removeChunks(Set<Integer> chunkIDs) {</span> |
| <span class="source-line-no">291</span><span id="line-291"> this.chunkIdMap.keySet().removeAll(chunkIDs);</span> |
| <span class="source-line-no">292</span><span id="line-292"> }</span> |
| <span class="source-line-no">293</span><span id="line-293"></span> |
| <span class="source-line-no">294</span><span id="line-294"> Chunk removeChunk(int chunkId) {</span> |
| <span class="source-line-no">295</span><span id="line-295"> return this.chunkIdMap.remove(chunkId);</span> |
| <span class="source-line-no">296</span><span id="line-296"> }</span> |
| <span class="source-line-no">297</span><span id="line-297"></span> |
| <span class="source-line-no">298</span><span id="line-298"> // the chunks in the chunkIdMap may already be released so we shouldn't relay</span> |
| <span class="source-line-no">299</span><span id="line-299"> // on this counting for strong correctness. This method is used only in testing.</span> |
| <span class="source-line-no">300</span><span id="line-300"> int numberOfMappedChunks() {</span> |
| <span class="source-line-no">301</span><span id="line-301"> return this.chunkIdMap.size();</span> |
| <span class="source-line-no">302</span><span id="line-302"> }</span> |
| <span class="source-line-no">303</span><span id="line-303"></span> |
| <span class="source-line-no">304</span><span id="line-304"> void clearChunkIds() {</span> |
| <span class="source-line-no">305</span><span id="line-305"> this.chunkIdMap.clear();</span> |
| <span class="source-line-no">306</span><span id="line-306"> }</span> |
| <span class="source-line-no">307</span><span id="line-307"></span> |
| <span class="source-line-no">308</span><span id="line-308"> /**</span> |
| <span class="source-line-no">309</span><span id="line-309"> * A pool of {@link Chunk} instances. MemStoreChunkPool caches a number of retired chunks for</span> |
| <span class="source-line-no">310</span><span id="line-310"> * reusing, it could decrease allocating bytes when writing, thereby optimizing the garbage</span> |
| <span class="source-line-no">311</span><span id="line-311"> * collection on JVM.</span> |
| <span class="source-line-no">312</span><span id="line-312"> */</span> |
| <span class="source-line-no">313</span><span id="line-313"> private class MemStoreChunkPool implements HeapMemoryTuneObserver {</span> |
| <span class="source-line-no">314</span><span id="line-314"> private final int chunkSize;</span> |
| <span class="source-line-no">315</span><span id="line-315"> private final ChunkType chunkType;</span> |
| <span class="source-line-no">316</span><span id="line-316"> private int maxCount;</span> |
| <span class="source-line-no">317</span><span id="line-317"></span> |
| <span class="source-line-no">318</span><span id="line-318"> // A queue of reclaimed chunks</span> |
| <span class="source-line-no">319</span><span id="line-319"> private final BlockingQueue<Chunk> reclaimedChunks;</span> |
| <span class="source-line-no">320</span><span id="line-320"> private final float poolSizePercentage;</span> |
| <span class="source-line-no">321</span><span id="line-321"></span> |
| <span class="source-line-no">322</span><span id="line-322"> /** Statistics thread schedule pool */</span> |
| <span class="source-line-no">323</span><span id="line-323"> private final ScheduledExecutorService scheduleThreadPool;</span> |
| <span class="source-line-no">324</span><span id="line-324"> /** Statistics thread */</span> |
| <span class="source-line-no">325</span><span id="line-325"> private static final int statThreadPeriod = 60 * 5;</span> |
| <span class="source-line-no">326</span><span id="line-326"> private final AtomicLong chunkCount = new AtomicLong();</span> |
| <span class="source-line-no">327</span><span id="line-327"> private final LongAdder reusedChunkCount = new LongAdder();</span> |
| <span class="source-line-no">328</span><span id="line-328"> private final String label;</span> |
| <span class="source-line-no">329</span><span id="line-329"></span> |
| <span class="source-line-no">330</span><span id="line-330"> MemStoreChunkPool(String label, int chunkSize, ChunkType chunkType, int maxCount,</span> |
| <span class="source-line-no">331</span><span id="line-331"> int initialCount, float poolSizePercentage) {</span> |
| <span class="source-line-no">332</span><span id="line-332"> this.label = label;</span> |
| <span class="source-line-no">333</span><span id="line-333"> this.chunkSize = chunkSize;</span> |
| <span class="source-line-no">334</span><span id="line-334"> this.chunkType = chunkType;</span> |
| <span class="source-line-no">335</span><span id="line-335"> this.maxCount = maxCount;</span> |
| <span class="source-line-no">336</span><span id="line-336"> this.poolSizePercentage = poolSizePercentage;</span> |
| <span class="source-line-no">337</span><span id="line-337"> this.reclaimedChunks = new LinkedBlockingQueue<>();</span> |
| <span class="source-line-no">338</span><span id="line-338"> for (int i = 0; i < initialCount; i++) {</span> |
| <span class="source-line-no">339</span><span id="line-339"> Chunk chunk = createChunk(true, chunkType, chunkSize);</span> |
| <span class="source-line-no">340</span><span id="line-340"> chunk.init();</span> |
| <span class="source-line-no">341</span><span id="line-341"> reclaimedChunks.add(chunk);</span> |
| <span class="source-line-no">342</span><span id="line-342"> }</span> |
| <span class="source-line-no">343</span><span id="line-343"> chunkCount.set(initialCount);</span> |
| <span class="source-line-no">344</span><span id="line-344"> final String n = Thread.currentThread().getName();</span> |
| <span class="source-line-no">345</span><span id="line-345"> scheduleThreadPool = Executors.newScheduledThreadPool(1, new ThreadFactoryBuilder()</span> |
| <span class="source-line-no">346</span><span id="line-346"> .setNameFormat(n + "-MemStoreChunkPool Statistics").setDaemon(true).build());</span> |
| <span class="source-line-no">347</span><span id="line-347"> this.scheduleThreadPool.scheduleAtFixedRate(new StatisticsThread(), statThreadPeriod,</span> |
| <span class="source-line-no">348</span><span id="line-348"> statThreadPeriod, TimeUnit.SECONDS);</span> |
| <span class="source-line-no">349</span><span id="line-349"> }</span> |
| <span class="source-line-no">350</span><span id="line-350"></span> |
| <span class="source-line-no">351</span><span id="line-351"> /**</span> |
| <span class="source-line-no">352</span><span id="line-352"> * Poll a chunk from the pool, reset it if not null, else create a new chunk to return if we</span> |
| <span class="source-line-no">353</span><span id="line-353"> * have not yet created max allowed chunks count. When we have already created max allowed</span> |
| <span class="source-line-no">354</span><span id="line-354"> * chunks and no free chunks as of now, return null. It is the responsibility of the caller to</span> |
| <span class="source-line-no">355</span><span id="line-355"> * make a chunk then. Note: Chunks returned by this pool must be put back to the pool after its</span> |
| <span class="source-line-no">356</span><span id="line-356"> * use.</span> |
| <span class="source-line-no">357</span><span id="line-357"> * @return a chunk</span> |
| <span class="source-line-no">358</span><span id="line-358"> * @see #putbackChunks(Chunk)</span> |
| <span class="source-line-no">359</span><span id="line-359"> */</span> |
| <span class="source-line-no">360</span><span id="line-360"> Chunk getChunk() {</span> |
| <span class="source-line-no">361</span><span id="line-361"> Chunk chunk = reclaimedChunks.poll();</span> |
| <span class="source-line-no">362</span><span id="line-362"> if (chunk != null) {</span> |
| <span class="source-line-no">363</span><span id="line-363"> chunk.reset();</span> |
| <span class="source-line-no">364</span><span id="line-364"> reusedChunkCount.increment();</span> |
| <span class="source-line-no">365</span><span id="line-365"> } else {</span> |
| <span class="source-line-no">366</span><span id="line-366"> // Make a chunk iff we have not yet created the maxCount chunks</span> |
| <span class="source-line-no">367</span><span id="line-367"> while (true) {</span> |
| <span class="source-line-no">368</span><span id="line-368"> long created = this.chunkCount.get();</span> |
| <span class="source-line-no">369</span><span id="line-369"> if (created < this.maxCount) {</span> |
| <span class="source-line-no">370</span><span id="line-370"> if (this.chunkCount.compareAndSet(created, created + 1)) {</span> |
| <span class="source-line-no">371</span><span id="line-371"> chunk = createChunkForPool(chunkType, chunkSize);</span> |
| <span class="source-line-no">372</span><span id="line-372"> break;</span> |
| <span class="source-line-no">373</span><span id="line-373"> }</span> |
| <span class="source-line-no">374</span><span id="line-374"> } else {</span> |
| <span class="source-line-no">375</span><span id="line-375"> break;</span> |
| <span class="source-line-no">376</span><span id="line-376"> }</span> |
| <span class="source-line-no">377</span><span id="line-377"> }</span> |
| <span class="source-line-no">378</span><span id="line-378"> }</span> |
| <span class="source-line-no">379</span><span id="line-379"> return chunk;</span> |
| <span class="source-line-no">380</span><span id="line-380"> }</span> |
| <span class="source-line-no">381</span><span id="line-381"></span> |
| <span class="source-line-no">382</span><span id="line-382"> int getChunkSize() {</span> |
| <span class="source-line-no">383</span><span id="line-383"> return chunkSize;</span> |
| <span class="source-line-no">384</span><span id="line-384"> }</span> |
| <span class="source-line-no">385</span><span id="line-385"></span> |
| <span class="source-line-no">386</span><span id="line-386"> /**</span> |
| <span class="source-line-no">387</span><span id="line-387"> * Add the chunks to the pool, when the pool achieves the max size, it will skip the remaining</span> |
| <span class="source-line-no">388</span><span id="line-388"> * chunks</span> |
| <span class="source-line-no">389</span><span id="line-389"> */</span> |
| <span class="source-line-no">390</span><span id="line-390"> private void putbackChunks(Chunk c) {</span> |
| <span class="source-line-no">391</span><span id="line-391"> int toAdd = this.maxCount - reclaimedChunks.size();</span> |
| <span class="source-line-no">392</span><span id="line-392"> if (c.isFromPool() && c.size == chunkSize && toAdd > 0) {</span> |
| <span class="source-line-no">393</span><span id="line-393"> reclaimedChunks.add(c);</span> |
| <span class="source-line-no">394</span><span id="line-394"> } else {</span> |
| <span class="source-line-no">395</span><span id="line-395"> // remove the chunk (that is not going to pool)</span> |
| <span class="source-line-no">396</span><span id="line-396"> // though it is initially from the pool or not</span> |
| <span class="source-line-no">397</span><span id="line-397"> ChunkCreator.this.removeChunk(c.getId());</span> |
| <span class="source-line-no">398</span><span id="line-398"> }</span> |
| <span class="source-line-no">399</span><span id="line-399"> }</span> |
| <span class="source-line-no">400</span><span id="line-400"></span> |
| <span class="source-line-no">401</span><span id="line-401"> private class StatisticsThread extends Thread {</span> |
| <span class="source-line-no">402</span><span id="line-402"> StatisticsThread() {</span> |
| <span class="source-line-no">403</span><span id="line-403"> super("MemStoreChunkPool.StatisticsThread");</span> |
| <span class="source-line-no">404</span><span id="line-404"> setDaemon(true);</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"> @Override</span> |
| <span class="source-line-no">408</span><span id="line-408"> public void run() {</span> |
| <span class="source-line-no">409</span><span id="line-409"> logStats();</span> |
| <span class="source-line-no">410</span><span id="line-410"> }</span> |
| <span class="source-line-no">411</span><span id="line-411"></span> |
| <span class="source-line-no">412</span><span id="line-412"> private void logStats() {</span> |
| <span class="source-line-no">413</span><span id="line-413"> if (!LOG.isDebugEnabled()) return;</span> |
| <span class="source-line-no">414</span><span id="line-414"> long created = chunkCount.get();</span> |
| <span class="source-line-no">415</span><span id="line-415"> long reused = reusedChunkCount.sum();</span> |
| <span class="source-line-no">416</span><span id="line-416"> long total = created + reused;</span> |
| <span class="source-line-no">417</span><span id="line-417"> LOG.debug(</span> |
| <span class="source-line-no">418</span><span id="line-418"> "{} stats (chunk size={}): current pool size={}, created chunk count={}, "</span> |
| <span class="source-line-no">419</span><span id="line-419"> + "reused chunk count={}, reuseRatio={}",</span> |
| <span class="source-line-no">420</span><span id="line-420"> label, chunkSize, reclaimedChunks.size(), created, reused,</span> |
| <span class="source-line-no">421</span><span id="line-421"> (total == 0 ? "0" : StringUtils.formatPercent((float) reused / (float) total, 2)));</span> |
| <span class="source-line-no">422</span><span id="line-422"> }</span> |
| <span class="source-line-no">423</span><span id="line-423"> }</span> |
| <span class="source-line-no">424</span><span id="line-424"></span> |
| <span class="source-line-no">425</span><span id="line-425"> private int getMaxCount() {</span> |
| <span class="source-line-no">426</span><span id="line-426"> return this.maxCount;</span> |
| <span class="source-line-no">427</span><span id="line-427"> }</span> |
| <span class="source-line-no">428</span><span id="line-428"></span> |
| <span class="source-line-no">429</span><span id="line-429"> @Override</span> |
| <span class="source-line-no">430</span><span id="line-430"> public void onHeapMemoryTune(long newMemstoreSize, long newBlockCacheSize) {</span> |
| <span class="source-line-no">431</span><span id="line-431"> // don't do any tuning in case of offheap memstore</span> |
| <span class="source-line-no">432</span><span id="line-432"> if (isOffheap()) {</span> |
| <span class="source-line-no">433</span><span id="line-433"> LOG.warn("{} not tuning the chunk pool as it is offheap", label);</span> |
| <span class="source-line-no">434</span><span id="line-434"> return;</span> |
| <span class="source-line-no">435</span><span id="line-435"> }</span> |
| <span class="source-line-no">436</span><span id="line-436"> int newMaxCount = (int) (newMemstoreSize * poolSizePercentage / getChunkSize());</span> |
| <span class="source-line-no">437</span><span id="line-437"> if (newMaxCount != this.maxCount) {</span> |
| <span class="source-line-no">438</span><span id="line-438"> // We need an adjustment in the chunks numbers</span> |
| <span class="source-line-no">439</span><span id="line-439"> if (newMaxCount > this.maxCount) {</span> |
| <span class="source-line-no">440</span><span id="line-440"> // Max chunks getting increased. Just change the variable. Later calls to getChunk() would</span> |
| <span class="source-line-no">441</span><span id="line-441"> // create and add them to Q</span> |
| <span class="source-line-no">442</span><span id="line-442"> LOG.info("{} max count for chunks increased from {} to {}", this.label, this.maxCount,</span> |
| <span class="source-line-no">443</span><span id="line-443"> newMaxCount);</span> |
| <span class="source-line-no">444</span><span id="line-444"> this.maxCount = newMaxCount;</span> |
| <span class="source-line-no">445</span><span id="line-445"> } else {</span> |
| <span class="source-line-no">446</span><span id="line-446"> // Max chunks getting decreased. We may need to clear off some of the pooled chunks now</span> |
| <span class="source-line-no">447</span><span id="line-447"> // itself. If the extra chunks are serving already, do not pool those when we get them</span> |
| <span class="source-line-no">448</span><span id="line-448"> // back</span> |
| <span class="source-line-no">449</span><span id="line-449"> LOG.info("{} max count for chunks decreased from {} to {}", this.label, this.maxCount,</span> |
| <span class="source-line-no">450</span><span id="line-450"> newMaxCount);</span> |
| <span class="source-line-no">451</span><span id="line-451"> this.maxCount = newMaxCount;</span> |
| <span class="source-line-no">452</span><span id="line-452"> if (this.reclaimedChunks.size() > newMaxCount) {</span> |
| <span class="source-line-no">453</span><span id="line-453"> synchronized (this) {</span> |
| <span class="source-line-no">454</span><span id="line-454"> while (this.reclaimedChunks.size() > newMaxCount) {</span> |
| <span class="source-line-no">455</span><span id="line-455"> this.reclaimedChunks.poll();</span> |
| <span class="source-line-no">456</span><span id="line-456"> }</span> |
| <span class="source-line-no">457</span><span id="line-457"> }</span> |
| <span class="source-line-no">458</span><span id="line-458"> }</span> |
| <span class="source-line-no">459</span><span id="line-459"> }</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"> }</span> |
| <span class="source-line-no">463</span><span id="line-463"></span> |
| <span class="source-line-no">464</span><span id="line-464"> static void clearDisableFlag() {</span> |
| <span class="source-line-no">465</span><span id="line-465"> chunkPoolDisabled = false;</span> |
| <span class="source-line-no">466</span><span id="line-466"> }</span> |
| <span class="source-line-no">467</span><span id="line-467"></span> |
| <span class="source-line-no">468</span><span id="line-468"> private MemStoreChunkPool initializePool(String label, long globalMemStoreSize,</span> |
| <span class="source-line-no">469</span><span id="line-469"> float poolSizePercentage, float initialCountPercentage, int chunkSize, ChunkType chunkType,</span> |
| <span class="source-line-no">470</span><span id="line-470"> HeapMemoryManager heapMemoryManager) {</span> |
| <span class="source-line-no">471</span><span id="line-471"> if (poolSizePercentage <= 0) {</span> |
| <span class="source-line-no">472</span><span id="line-472"> LOG.info("{} poolSizePercentage is less than 0. So not using pool", label);</span> |
| <span class="source-line-no">473</span><span id="line-473"> return null;</span> |
| <span class="source-line-no">474</span><span id="line-474"> }</span> |
| <span class="source-line-no">475</span><span id="line-475"> if (chunkPoolDisabled) {</span> |
| <span class="source-line-no">476</span><span id="line-476"> return null;</span> |
| <span class="source-line-no">477</span><span id="line-477"> }</span> |
| <span class="source-line-no">478</span><span id="line-478"> if (poolSizePercentage > 1.0) {</span> |
| <span class="source-line-no">479</span><span id="line-479"> throw new IllegalArgumentException(</span> |
| <span class="source-line-no">480</span><span id="line-480"> MemStoreLAB.CHUNK_POOL_MAXSIZE_KEY + " must be between 0.0 and 1.0");</span> |
| <span class="source-line-no">481</span><span id="line-481"> }</span> |
| <span class="source-line-no">482</span><span id="line-482"> int maxCount = (int) (globalMemStoreSize * poolSizePercentage / chunkSize);</span> |
| <span class="source-line-no">483</span><span id="line-483"> if (initialCountPercentage > 1.0 || initialCountPercentage < 0) {</span> |
| <span class="source-line-no">484</span><span id="line-484"> throw new IllegalArgumentException(</span> |
| <span class="source-line-no">485</span><span id="line-485"> label + " " + MemStoreLAB.CHUNK_POOL_INITIALSIZE_KEY + " must be between 0.0 and 1.0");</span> |
| <span class="source-line-no">486</span><span id="line-486"> }</span> |
| <span class="source-line-no">487</span><span id="line-487"> int initialCount = (int) (initialCountPercentage * maxCount);</span> |
| <span class="source-line-no">488</span><span id="line-488"> LOG.info("Allocating {} MemStoreChunkPool with chunk size {}, max count {}, initial count {}",</span> |
| <span class="source-line-no">489</span><span id="line-489"> label, StringUtils.byteDesc(chunkSize), maxCount, initialCount);</span> |
| <span class="source-line-no">490</span><span id="line-490"> MemStoreChunkPool memStoreChunkPool = new MemStoreChunkPool(label, chunkSize, chunkType,</span> |
| <span class="source-line-no">491</span><span id="line-491"> maxCount, initialCount, poolSizePercentage);</span> |
| <span class="source-line-no">492</span><span id="line-492"> if (heapMemoryManager != null && memStoreChunkPool != null) {</span> |
| <span class="source-line-no">493</span><span id="line-493"> // Register with Heap Memory manager</span> |
| <span class="source-line-no">494</span><span id="line-494"> heapMemoryManager.registerTuneObserver(memStoreChunkPool);</span> |
| <span class="source-line-no">495</span><span id="line-495"> }</span> |
| <span class="source-line-no">496</span><span id="line-496"> return memStoreChunkPool;</span> |
| <span class="source-line-no">497</span><span id="line-497"> }</span> |
| <span class="source-line-no">498</span><span id="line-498"></span> |
| <span class="source-line-no">499</span><span id="line-499"> int getMaxCount() {</span> |
| <span class="source-line-no">500</span><span id="line-500"> return getMaxCount(ChunkType.DATA_CHUNK);</span> |
| <span class="source-line-no">501</span><span id="line-501"> }</span> |
| <span class="source-line-no">502</span><span id="line-502"></span> |
| <span class="source-line-no">503</span><span id="line-503"> int getMaxCount(ChunkType chunkType) {</span> |
| <span class="source-line-no">504</span><span id="line-504"> switch (chunkType) {</span> |
| <span class="source-line-no">505</span><span id="line-505"> case INDEX_CHUNK:</span> |
| <span class="source-line-no">506</span><span id="line-506"> if (indexChunksPool != null) {</span> |
| <span class="source-line-no">507</span><span id="line-507"> return indexChunksPool.getMaxCount();</span> |
| <span class="source-line-no">508</span><span id="line-508"> }</span> |
| <span class="source-line-no">509</span><span id="line-509"> break;</span> |
| <span class="source-line-no">510</span><span id="line-510"> case DATA_CHUNK:</span> |
| <span class="source-line-no">511</span><span id="line-511"> if (dataChunksPool != null) {</span> |
| <span class="source-line-no">512</span><span id="line-512"> return dataChunksPool.getMaxCount();</span> |
| <span class="source-line-no">513</span><span id="line-513"> }</span> |
| <span class="source-line-no">514</span><span id="line-514"> break;</span> |
| <span class="source-line-no">515</span><span id="line-515"> default:</span> |
| <span class="source-line-no">516</span><span id="line-516"> throw new IllegalArgumentException("chunkType must either be INDEX_CHUNK or DATA_CHUNK");</span> |
| <span class="source-line-no">517</span><span id="line-517"> }</span> |
| <span class="source-line-no">518</span><span id="line-518"></span> |
| <span class="source-line-no">519</span><span id="line-519"> return 0;</span> |
| <span class="source-line-no">520</span><span id="line-520"> }</span> |
| <span class="source-line-no">521</span><span id="line-521"></span> |
| <span class="source-line-no">522</span><span id="line-522"> int getPoolSize() {</span> |
| <span class="source-line-no">523</span><span id="line-523"> return getPoolSize(ChunkType.DATA_CHUNK);</span> |
| <span class="source-line-no">524</span><span id="line-524"> }</span> |
| <span class="source-line-no">525</span><span id="line-525"></span> |
| <span class="source-line-no">526</span><span id="line-526"> int getPoolSize(ChunkType chunkType) {</span> |
| <span class="source-line-no">527</span><span id="line-527"> switch (chunkType) {</span> |
| <span class="source-line-no">528</span><span id="line-528"> case INDEX_CHUNK:</span> |
| <span class="source-line-no">529</span><span id="line-529"> if (indexChunksPool != null) {</span> |
| <span class="source-line-no">530</span><span id="line-530"> return indexChunksPool.reclaimedChunks.size();</span> |
| <span class="source-line-no">531</span><span id="line-531"> }</span> |
| <span class="source-line-no">532</span><span id="line-532"> break;</span> |
| <span class="source-line-no">533</span><span id="line-533"> case DATA_CHUNK:</span> |
| <span class="source-line-no">534</span><span id="line-534"> if (dataChunksPool != null) {</span> |
| <span class="source-line-no">535</span><span id="line-535"> return dataChunksPool.reclaimedChunks.size();</span> |
| <span class="source-line-no">536</span><span id="line-536"> }</span> |
| <span class="source-line-no">537</span><span id="line-537"> break;</span> |
| <span class="source-line-no">538</span><span id="line-538"> default:</span> |
| <span class="source-line-no">539</span><span id="line-539"> throw new IllegalArgumentException("chunkType must either be INDEX_CHUNK or DATA_CHUNK");</span> |
| <span class="source-line-no">540</span><span id="line-540"> }</span> |
| <span class="source-line-no">541</span><span id="line-541"> return 0;</span> |
| <span class="source-line-no">542</span><span id="line-542"> }</span> |
| <span class="source-line-no">543</span><span id="line-543"></span> |
| <span class="source-line-no">544</span><span id="line-544"> boolean isChunkInPool(int chunkId) {</span> |
| <span class="source-line-no">545</span><span id="line-545"> Chunk c = getChunk(chunkId);</span> |
| <span class="source-line-no">546</span><span id="line-546"> if (c == null) {</span> |
| <span class="source-line-no">547</span><span id="line-547"> return false;</span> |
| <span class="source-line-no">548</span><span id="line-548"> }</span> |
| <span class="source-line-no">549</span><span id="line-549"></span> |
| <span class="source-line-no">550</span><span id="line-550"> // chunks that are from pool will return true chunk reference not null</span> |
| <span class="source-line-no">551</span><span id="line-551"> if (dataChunksPool != null && dataChunksPool.reclaimedChunks.contains(c)) {</span> |
| <span class="source-line-no">552</span><span id="line-552"> return true;</span> |
| <span class="source-line-no">553</span><span id="line-553"> } else if (indexChunksPool != null && indexChunksPool.reclaimedChunks.contains(c)) {</span> |
| <span class="source-line-no">554</span><span id="line-554"> return true;</span> |
| <span class="source-line-no">555</span><span id="line-555"> }</span> |
| <span class="source-line-no">556</span><span id="line-556"> return false;</span> |
| <span class="source-line-no">557</span><span id="line-557"> }</span> |
| <span class="source-line-no">558</span><span id="line-558"></span> |
| <span class="source-line-no">559</span><span id="line-559"> /*</span> |
| <span class="source-line-no">560</span><span id="line-560"> * Only used in testing</span> |
| <span class="source-line-no">561</span><span id="line-561"> */</span> |
| <span class="source-line-no">562</span><span id="line-562"> void clearChunksInPool() {</span> |
| <span class="source-line-no">563</span><span id="line-563"> if (dataChunksPool != null) {</span> |
| <span class="source-line-no">564</span><span id="line-564"> dataChunksPool.reclaimedChunks.clear();</span> |
| <span class="source-line-no">565</span><span id="line-565"> }</span> |
| <span class="source-line-no">566</span><span id="line-566"> if (indexChunksPool != null) {</span> |
| <span class="source-line-no">567</span><span id="line-567"> indexChunksPool.reclaimedChunks.clear();</span> |
| <span class="source-line-no">568</span><span id="line-568"> }</span> |
| <span class="source-line-no">569</span><span id="line-569"> }</span> |
| <span class="source-line-no">570</span><span id="line-570"></span> |
| <span class="source-line-no">571</span><span id="line-571"> int getChunkSize() {</span> |
| <span class="source-line-no">572</span><span id="line-572"> return getChunkSize(ChunkType.DATA_CHUNK);</span> |
| <span class="source-line-no">573</span><span id="line-573"> }</span> |
| <span class="source-line-no">574</span><span id="line-574"></span> |
| <span class="source-line-no">575</span><span id="line-575"> int getChunkSize(ChunkType chunkType) {</span> |
| <span class="source-line-no">576</span><span id="line-576"> switch (chunkType) {</span> |
| <span class="source-line-no">577</span><span id="line-577"> case INDEX_CHUNK:</span> |
| <span class="source-line-no">578</span><span id="line-578"> if (indexChunksPool != null) {</span> |
| <span class="source-line-no">579</span><span id="line-579"> return indexChunksPool.getChunkSize();</span> |
| <span class="source-line-no">580</span><span id="line-580"> } else {</span> |
| <span class="source-line-no">581</span><span id="line-581"> return indexChunkSize;</span> |
| <span class="source-line-no">582</span><span id="line-582"> }</span> |
| <span class="source-line-no">583</span><span id="line-583"> case DATA_CHUNK:</span> |
| <span class="source-line-no">584</span><span id="line-584"> if (dataChunksPool != null) {</span> |
| <span class="source-line-no">585</span><span id="line-585"> return dataChunksPool.getChunkSize();</span> |
| <span class="source-line-no">586</span><span id="line-586"> } else { // When pools are empty</span> |
| <span class="source-line-no">587</span><span id="line-587"> return chunkSize;</span> |
| <span class="source-line-no">588</span><span id="line-588"> }</span> |
| <span class="source-line-no">589</span><span id="line-589"> default:</span> |
| <span class="source-line-no">590</span><span id="line-590"> throw new IllegalArgumentException("chunkType must either be INDEX_CHUNK or DATA_CHUNK");</span> |
| <span class="source-line-no">591</span><span id="line-591"> }</span> |
| <span class="source-line-no">592</span><span id="line-592"> }</span> |
| <span class="source-line-no">593</span><span id="line-593"></span> |
| <span class="source-line-no">594</span><span id="line-594"> synchronized void putbackChunks(Set<Integer> chunks) {</span> |
| <span class="source-line-no">595</span><span id="line-595"> // if there is no pool just try to clear the chunkIdMap in case there is something</span> |
| <span class="source-line-no">596</span><span id="line-596"> if (dataChunksPool == null && indexChunksPool == null) {</span> |
| <span class="source-line-no">597</span><span id="line-597"> this.removeChunks(chunks);</span> |
| <span class="source-line-no">598</span><span id="line-598"> return;</span> |
| <span class="source-line-no">599</span><span id="line-599"> }</span> |
| <span class="source-line-no">600</span><span id="line-600"></span> |
| <span class="source-line-no">601</span><span id="line-601"> // if there is a pool, go over all chunk IDs that came back, the chunks may be from pool or not</span> |
| <span class="source-line-no">602</span><span id="line-602"> for (int chunkID : chunks) {</span> |
| <span class="source-line-no">603</span><span id="line-603"> // translate chunk ID to chunk, if chunk initially wasn't in pool</span> |
| <span class="source-line-no">604</span><span id="line-604"> // this translation will (most likely) return null</span> |
| <span class="source-line-no">605</span><span id="line-605"> Chunk chunk = ChunkCreator.this.getChunk(chunkID);</span> |
| <span class="source-line-no">606</span><span id="line-606"> if (chunk != null) {</span> |
| <span class="source-line-no">607</span><span id="line-607"> if (chunk.isFromPool() && chunk.isIndexChunk()) {</span> |
| <span class="source-line-no">608</span><span id="line-608"> indexChunksPool.putbackChunks(chunk);</span> |
| <span class="source-line-no">609</span><span id="line-609"> } else if (chunk.isFromPool() && chunk.isDataChunk()) {</span> |
| <span class="source-line-no">610</span><span id="line-610"> dataChunksPool.putbackChunks(chunk);</span> |
| <span class="source-line-no">611</span><span id="line-611"> } else {</span> |
| <span class="source-line-no">612</span><span id="line-612"> // chunks which are not from one of the pools</span> |
| <span class="source-line-no">613</span><span id="line-613"> // should be released without going to the pools.</span> |
| <span class="source-line-no">614</span><span id="line-614"> // Removing them from chunkIdMap will cause their removal by the GC.</span> |
| <span class="source-line-no">615</span><span id="line-615"> this.removeChunk(chunkID);</span> |
| <span class="source-line-no">616</span><span id="line-616"> }</span> |
| <span class="source-line-no">617</span><span id="line-617"> }</span> |
| <span class="source-line-no">618</span><span id="line-618"> // if chunk is null, it was never covered by the chunkIdMap (and so wasn't in pool also),</span> |
| <span class="source-line-no">619</span><span id="line-619"> // so we have nothing to do on its release</span> |
| <span class="source-line-no">620</span><span id="line-620"> }</span> |
| <span class="source-line-no">621</span><span id="line-621"> return;</span> |
| <span class="source-line-no">622</span><span id="line-622"> }</span> |
| <span class="source-line-no">623</span><span id="line-623"></span> |
| <span class="source-line-no">624</span><span id="line-624"> MemStoreChunkPool getIndexChunksPool() {</span> |
| <span class="source-line-no">625</span><span id="line-625"> return this.indexChunksPool;</span> |
| <span class="source-line-no">626</span><span id="line-626"> }</span> |
| <span class="source-line-no">627</span><span id="line-627"></span> |
| <span class="source-line-no">628</span><span id="line-628"> MemStoreChunkPool getDataChunksPool() {</span> |
| <span class="source-line-no">629</span><span id="line-629"> return this.dataChunksPool;</span> |
| <span class="source-line-no">630</span><span id="line-630"> }</span> |
| <span class="source-line-no">631</span><span id="line-631"></span> |
| <span class="source-line-no">632</span><span id="line-632">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
