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| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.regionserver;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.Map;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Set;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.concurrent.BlockingQueue;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.concurrent.Executors;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.concurrent.LinkedBlockingQueue;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.concurrent.ScheduledExecutorService;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.concurrent.TimeUnit;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.concurrent.atomic.LongAdder;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span><a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.slf4j.Logger;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.slf4j.LoggerFactory;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.HeapMemoryManager.HeapMemoryTuneObserver;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.util.StringUtils;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span>/**<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * Does the management of memstoreLAB chunk creations. A monotonically incrementing id is associated<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * with every chunk<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> */<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>@InterfaceAudience.Private<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>public class ChunkCreator {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private static final Logger LOG = LoggerFactory.getLogger(ChunkCreator.class);<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> // monotonically increasing chunkid. Starts at 1.<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> private AtomicInteger chunkID = new AtomicInteger(1);<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> // maps the chunk against the monotonically increasing chunk id. We need to preserve the<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> // natural ordering of the key<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> // CellChunkMap creation should convert the weak ref to hard reference<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> // chunk id of each chunk is the first integer written on each chunk,<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> // the header size need to be changed in case chunk id size is changed<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> public static final int SIZEOF_CHUNK_HEADER = Bytes.SIZEOF_INT;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> /**<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * Types of chunks, based on their sizes<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public enum ChunkType {<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> // An index chunk is a small chunk, allocated from the index chunks pool.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> // Its size is fixed and is 10% of the size of a data chunk.<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> INDEX_CHUNK,<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> // A data chunk is a regular chunk, allocated from the data chunks pool.<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> // Its size is fixed and given as input to the ChunkCreator c'tor.<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> DATA_CHUNK,<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> // A jumbo chunk isn't allocated from pool. Its size is bigger than the size of a<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> // data chunk, and is determined per chunk (meaning, there is no fixed jumbo size).<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> JUMBO_CHUNK<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> }<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> // mapping from chunk IDs to chunks<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> private Map<Integer, Chunk> chunkIdMap = new ConcurrentHashMap<Integer, Chunk>();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private final boolean offheap;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> @VisibleForTesting<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> static ChunkCreator instance;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> @VisibleForTesting<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> static boolean chunkPoolDisabled = false;<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private MemStoreChunkPool dataChunksPool;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> private final int chunkSize;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private MemStoreChunkPool indexChunksPool;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> @VisibleForTesting<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> ChunkCreator(int chunkSize, boolean offheap, long globalMemStoreSize, float poolSizePercentage,<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> float initialCountPercentage, HeapMemoryManager heapMemoryManager,<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> float indexChunkSizePercentage) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> this.offheap = offheap;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> this.chunkSize = chunkSize; // in case pools are not allocated<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> initializePools(chunkSize, globalMemStoreSize, poolSizePercentage, indexChunkSizePercentage,<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> initialCountPercentage, heapMemoryManager);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> @VisibleForTesting<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> private void initializePools(int chunkSize, long globalMemStoreSize,<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> float poolSizePercentage, float indexChunkSizePercentage,<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> float initialCountPercentage,<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> HeapMemoryManager heapMemoryManager) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> this.dataChunksPool = initializePool("data", globalMemStoreSize,<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> (1 - indexChunkSizePercentage) * poolSizePercentage,<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> initialCountPercentage, chunkSize, heapMemoryManager);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> // The index chunks pool is needed only when the index type is CCM.<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // Since the pools are not created at all when the index type isn't CCM,<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> // we don't need to check it here.<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> this.indexChunksPool = initializePool("index", globalMemStoreSize,<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> indexChunkSizePercentage * poolSizePercentage,<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> initialCountPercentage, (int) (indexChunkSizePercentage * chunkSize),<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> heapMemoryManager);<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> }<a name="line.111"></a> |
| <span class="sourceLineNo">112</span><a name="line.112"></a> |
| <span class="sourceLineNo">113</span> /**<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * Initializes the instance of ChunkCreator<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * @param chunkSize the chunkSize<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * @param offheap indicates if the chunk is to be created offheap or not<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * @param globalMemStoreSize the global memstore size<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * @param poolSizePercentage pool size percentage<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * @param initialCountPercentage the initial count of the chunk pool if any<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> * @param heapMemoryManager the heapmemory manager<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> * @return singleton MSLABChunkCreator<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> */<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "LI_LAZY_INIT_STATIC",<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> justification = "Method is called by single thread at the starting of RS")<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> @VisibleForTesting<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> public static ChunkCreator initialize(int chunkSize, boolean offheap, long globalMemStoreSize,<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> float poolSizePercentage, float initialCountPercentage,<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> HeapMemoryManager heapMemoryManager,<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> float indexChunkSizePercent) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (instance != null) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> return instance;<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> instance = new ChunkCreator(chunkSize, offheap, globalMemStoreSize, poolSizePercentage,<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> initialCountPercentage, heapMemoryManager, indexChunkSizePercent);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> return instance;<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> }<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> @VisibleForTesting<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> public static ChunkCreator getInstance() {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> return instance;<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> /**<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> * Creates and inits a chunk. The default implementation for a specific chunk size.<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> * @return the chunk that was initialized<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> */<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> Chunk getChunk(ChunkType chunkType) {<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> return getChunk(CompactingMemStore.IndexType.ARRAY_MAP, chunkType);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> /**<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> * Creates and inits a chunk. The default implementation.<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> * @return the chunk that was initialized<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> */<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> Chunk getChunk() {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> return getChunk(CompactingMemStore.IndexType.ARRAY_MAP, ChunkType.DATA_CHUNK);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<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> * Creates and inits a chunk. The default implementation for a specific index type.<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> * @return the chunk that was initialized<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> */<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> Chunk getChunk(CompactingMemStore.IndexType chunkIndexType) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> return getChunk(chunkIndexType, ChunkType.DATA_CHUNK);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<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> * Creates and inits a chunk with specific index type and type.<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> * @return the chunk that was initialized<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> */<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> Chunk getChunk(CompactingMemStore.IndexType chunkIndexType, ChunkType chunkType) {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> switch (chunkType) {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> case INDEX_CHUNK:<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> if (indexChunksPool != null) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> return getChunk(chunkIndexType, indexChunksPool.getChunkSize());<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> }<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> case DATA_CHUNK:<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> if (dataChunksPool == null) {<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> return getChunk(chunkIndexType, chunkSize);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> } else {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> return getChunk(chunkIndexType, dataChunksPool.getChunkSize());<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> default:<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> throw new IllegalArgumentException(<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> "chunkType must either be INDEX_CHUNK or DATA_CHUNK");<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<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> * Creates and inits a chunk.<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> * @return the chunk that was initialized<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> * @param chunkIndexType whether the requested chunk is going to be used with CellChunkMap index<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> * @param size the size of the chunk to be allocated, in bytes<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> */<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> Chunk getChunk(CompactingMemStore.IndexType chunkIndexType, int size) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> Chunk chunk = null;<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> MemStoreChunkPool pool = null;<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> // if the size is suitable for one of the pools<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> if (dataChunksPool != null && size == dataChunksPool.getChunkSize()) {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> pool = dataChunksPool;<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> } else if (indexChunksPool != null && size == indexChunksPool.getChunkSize()) {<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> pool = indexChunksPool;<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> }<a name="line.204"></a> |
| <span class="sourceLineNo">205</span><a name="line.205"></a> |
| <span class="sourceLineNo">206</span> // if we have a pool<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> if (pool != null) {<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> // the pool creates the chunk internally. The chunk#init() call happens here<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> chunk = pool.getChunk();<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> // the pool has run out of maxCount<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> if (chunk == null) {<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> if (LOG.isTraceEnabled()) {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> LOG.trace("The chunk pool is full. Reached maxCount= " + pool.getMaxCount()<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> + ". Creating chunk onheap.");<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> }<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> if (chunk == null) {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> // the second parameter explains whether CellChunkMap index is requested,<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> // in that case, put allocated on demand chunk mapping into chunkIdMap<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> chunk = createChunk(false, chunkIndexType, size);<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> }<a name="line.223"></a> |
| <span class="sourceLineNo">224</span><a name="line.224"></a> |
| <span class="sourceLineNo">225</span> // now we need to actually do the expensive memory allocation step in case of a new chunk,<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> // else only the offset is set to the beginning of the chunk to accept allocations<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> chunk.init();<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> return chunk;<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span><a name="line.230"></a> |
| <span class="sourceLineNo">231</span> /**<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> * Creates and inits a chunk of a special size, bigger than a regular chunk size.<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> * Such a chunk will never come from pool and will always be on demand allocated.<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> * @return the chunk that was initialized<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> * @param jumboSize the special size to be used<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> */<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> Chunk getJumboChunk(int jumboSize) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> int allocSize = jumboSize + SIZEOF_CHUNK_HEADER;<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> if (allocSize <= dataChunksPool.getChunkSize()) {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> LOG.warn("Jumbo chunk size " + jumboSize + " must be more than regular chunk size "<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> + dataChunksPool.getChunkSize() + ". Converting to regular chunk.");<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> return getChunk(CompactingMemStore.IndexType.CHUNK_MAP);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> // the new chunk is going to hold the jumbo cell data and needs to be referenced by<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> // a strong map. Therefore the CCM index type<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> return getChunk(CompactingMemStore.IndexType.CHUNK_MAP, allocSize);<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> }<a name="line.247"></a> |
| <span class="sourceLineNo">248</span><a name="line.248"></a> |
| <span class="sourceLineNo">249</span> /**<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> * Creates the chunk either onheap or offheap<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> * @param pool indicates if the chunks have to be created which will be used by the Pool<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> * @param chunkIndexType whether the requested chunk is going to be used with CellChunkMap index<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> * @param size the size of the chunk to be allocated, in bytes<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> * @return the chunk<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> */<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> private Chunk createChunk(boolean pool, CompactingMemStore.IndexType chunkIndexType, int size) {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> Chunk chunk = null;<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> int id = chunkID.getAndIncrement();<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> assert id > 0;<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> // do not create offheap chunk on demand<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> if (pool && this.offheap) {<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> chunk = new OffheapChunk(size, id, pool);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> } else {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> chunk = new OnheapChunk(size, id, pool);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> if (pool || (chunkIndexType == CompactingMemStore.IndexType.CHUNK_MAP)) {<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> // put the pool chunk into the chunkIdMap so it is not GC-ed<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> this.chunkIdMap.put(chunk.getId(), chunk);<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> return chunk;<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> // Chunks from pool are created covered with strong references anyway<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> // TODO: change to CHUNK_MAP if it is generally defined<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> private Chunk createChunkForPool(CompactingMemStore.IndexType chunkIndexType, int chunkSize) {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> if (chunkSize != dataChunksPool.getChunkSize() &&<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> chunkSize != indexChunksPool.getChunkSize()) {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> return null;<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> return createChunk(true, chunkIndexType, chunkSize);<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> @VisibleForTesting<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> // Used to translate the ChunkID into a chunk ref<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> Chunk getChunk(int id) {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> // can return null if chunk was never mapped<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> return chunkIdMap.get(id);<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> boolean isOffheap() {<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> return this.offheap;<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> }<a name="line.292"></a> |
| <span class="sourceLineNo">293</span><a name="line.293"></a> |
| <span class="sourceLineNo">294</span> private void removeChunks(Set<Integer> chunkIDs) {<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> this.chunkIdMap.keySet().removeAll(chunkIDs);<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> Chunk removeChunk(int chunkId) {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> return this.chunkIdMap.remove(chunkId);<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span><a name="line.301"></a> |
| <span class="sourceLineNo">302</span> @VisibleForTesting<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> // the chunks in the chunkIdMap may already be released so we shouldn't relay<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> // on this counting for strong correctness. This method is used only in testing.<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> int numberOfMappedChunks() {<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> return this.chunkIdMap.size();<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> }<a name="line.307"></a> |
| <span class="sourceLineNo">308</span><a name="line.308"></a> |
| <span class="sourceLineNo">309</span> @VisibleForTesting<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> void clearChunkIds() {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> this.chunkIdMap.clear();<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> }<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> /**<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> * A pool of {@link Chunk} instances.<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> *<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> * MemStoreChunkPool caches a number of retired chunks for reusing, it could<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> * decrease allocating bytes when writing, thereby optimizing the garbage<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> * collection on JVM.<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> */<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> private class MemStoreChunkPool implements HeapMemoryTuneObserver {<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> private final int chunkSize;<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> private int maxCount;<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> // A queue of reclaimed chunks<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> private final BlockingQueue<Chunk> reclaimedChunks;<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> private final float poolSizePercentage;<a name="line.327"></a> |
| <span class="sourceLineNo">328</span><a name="line.328"></a> |
| <span class="sourceLineNo">329</span> /** Statistics thread schedule pool */<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> private final ScheduledExecutorService scheduleThreadPool;<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> /** Statistics thread */<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> private static final int statThreadPeriod = 60 * 5;<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> private final AtomicLong chunkCount = new AtomicLong();<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> private final LongAdder reusedChunkCount = new LongAdder();<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> private final String label;<a name="line.335"></a> |
| <span class="sourceLineNo">336</span><a name="line.336"></a> |
| <span class="sourceLineNo">337</span> MemStoreChunkPool(String label, int chunkSize, int maxCount, int initialCount,<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> float poolSizePercentage) {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> this.label = label;<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> this.chunkSize = chunkSize;<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> this.maxCount = maxCount;<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> this.poolSizePercentage = poolSizePercentage;<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> this.reclaimedChunks = new LinkedBlockingQueue<>();<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> for (int i = 0; i < initialCount; i++) {<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> Chunk chunk = createChunk(true, CompactingMemStore.IndexType.ARRAY_MAP, chunkSize);<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> chunk.init();<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> reclaimedChunks.add(chunk);<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> }<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> chunkCount.set(initialCount);<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> final String n = Thread.currentThread().getName();<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> scheduleThreadPool = Executors.newScheduledThreadPool(1, new ThreadFactoryBuilder()<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> .setNameFormat(n + "-MemStoreChunkPool Statistics").setDaemon(true).build());<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> this.scheduleThreadPool.scheduleAtFixedRate(new StatisticsThread(), statThreadPeriod,<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> statThreadPeriod, TimeUnit.SECONDS);<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> }<a name="line.355"></a> |
| <span class="sourceLineNo">356</span><a name="line.356"></a> |
| <span class="sourceLineNo">357</span> /**<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> * Poll a chunk from the pool, reset it if not null, else create a new chunk to return if we have<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> * not yet created max allowed chunks count. When we have already created max allowed chunks and<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> * no free chunks as of now, return null. It is the responsibility of the caller to make a chunk<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> * then.<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> * Note: Chunks returned by this pool must be put back to the pool after its use.<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> * @return a chunk<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> * @see #putbackChunks(Chunk)<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> */<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> Chunk getChunk() {<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> return getChunk(CompactingMemStore.IndexType.ARRAY_MAP);<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> }<a name="line.368"></a> |
| <span class="sourceLineNo">369</span><a name="line.369"></a> |
| <span class="sourceLineNo">370</span> Chunk getChunk(CompactingMemStore.IndexType chunkIndexType) {<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> Chunk chunk = reclaimedChunks.poll();<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> if (chunk != null) {<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> chunk.reset();<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> reusedChunkCount.increment();<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> } else {<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> // Make a chunk iff we have not yet created the maxCount chunks<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> while (true) {<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> long created = this.chunkCount.get();<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> if (created < this.maxCount) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> if (this.chunkCount.compareAndSet(created, created + 1)) {<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> chunk = createChunkForPool(chunkIndexType, chunkSize);<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> break;<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> } else {<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> break;<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> }<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> }<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> }<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> return chunk;<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> int getChunkSize() {<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> return chunkSize;<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span><a name="line.395"></a> |
| <span class="sourceLineNo">396</span> /**<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> * Add the chunks to the pool, when the pool achieves the max size, it will skip the remaining<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> * chunks<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> * @param c<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> */<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> private void putbackChunks(Chunk c) {<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> int toAdd = this.maxCount - reclaimedChunks.size();<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> if (c.isFromPool() && c.size == chunkSize && toAdd > 0) {<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> reclaimedChunks.add(c);<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> } else {<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> // remove the chunk (that is not going to pool)<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> // though it is initially from the pool or not<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> ChunkCreator.this.removeChunk(c.getId());<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> }<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> }<a name="line.410"></a> |
| <span class="sourceLineNo">411</span><a name="line.411"></a> |
| <span class="sourceLineNo">412</span> private class StatisticsThread extends Thread {<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> StatisticsThread() {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> super("MemStoreChunkPool.StatisticsThread");<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> setDaemon(true);<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> }<a name="line.416"></a> |
| <span class="sourceLineNo">417</span><a name="line.417"></a> |
| <span class="sourceLineNo">418</span> @Override<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> public void run() {<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> logStats();<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> private void logStats() {<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> if (!LOG.isDebugEnabled()) return;<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> long created = chunkCount.get();<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> long reused = reusedChunkCount.sum();<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> long total = created + reused;<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> LOG.debug("{} stats (chunk size={}): current pool size={}, created chunk count={}, " +<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> "reused chunk count={}, reuseRatio={}", label, chunkSize, reclaimedChunks.size(),<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> created, reused,<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> (total == 0? "0": StringUtils.formatPercent((float)reused/(float)total,2)));<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> }<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> }<a name="line.433"></a> |
| <span class="sourceLineNo">434</span><a name="line.434"></a> |
| <span class="sourceLineNo">435</span> private int getMaxCount() {<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> return this.maxCount;<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> }<a name="line.437"></a> |
| <span class="sourceLineNo">438</span><a name="line.438"></a> |
| <span class="sourceLineNo">439</span> @Override<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> public void onHeapMemoryTune(long newMemstoreSize, long newBlockCacheSize) {<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> // don't do any tuning in case of offheap memstore<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> if (isOffheap()) {<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> LOG.warn("{} not tuning the chunk pool as it is offheap", label);<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> return;<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> }<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> int newMaxCount =<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> (int) (newMemstoreSize * poolSizePercentage / getChunkSize());<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> if (newMaxCount != this.maxCount) {<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> // We need an adjustment in the chunks numbers<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> if (newMaxCount > this.maxCount) {<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> // Max chunks getting increased. Just change the variable. Later calls to getChunk() would<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> // create and add them to Q<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> LOG.info("{} max count for chunks increased from {} to {}", this.label, this.maxCount,<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> newMaxCount);<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> this.maxCount = newMaxCount;<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> } else {<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> // Max chunks getting decreased. We may need to clear off some of the pooled chunks now<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> // itself. If the extra chunks are serving already, do not pool those when we get them back<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> LOG.info("{} max count for chunks decreased from {} to {}", this.label, this.maxCount,<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> newMaxCount);<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> this.maxCount = newMaxCount;<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> if (this.reclaimedChunks.size() > newMaxCount) {<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> synchronized (this) {<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> while (this.reclaimedChunks.size() > newMaxCount) {<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> this.reclaimedChunks.poll();<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> }<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> }<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> }<a name="line.472"></a> |
| <span class="sourceLineNo">473</span><a name="line.473"></a> |
| <span class="sourceLineNo">474</span> @VisibleForTesting<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> static void clearDisableFlag() {<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> chunkPoolDisabled = false;<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> }<a name="line.477"></a> |
| <span class="sourceLineNo">478</span><a name="line.478"></a> |
| <span class="sourceLineNo">479</span> private MemStoreChunkPool initializePool(String label, long globalMemStoreSize,<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> float poolSizePercentage, float initialCountPercentage, int chunkSize,<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> HeapMemoryManager heapMemoryManager) {<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> if (poolSizePercentage <= 0) {<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> LOG.info("{} poolSizePercentage is less than 0. So not using pool", label);<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> return null;<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> }<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> if (chunkPoolDisabled) {<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> return null;<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> }<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> if (poolSizePercentage > 1.0) {<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> throw new IllegalArgumentException(<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> MemStoreLAB.CHUNK_POOL_MAXSIZE_KEY + " must be between 0.0 and 1.0");<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> }<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> int maxCount = (int) (globalMemStoreSize * poolSizePercentage / chunkSize);<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> if (initialCountPercentage > 1.0 || initialCountPercentage < 0) {<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> throw new IllegalArgumentException(label + " " + MemStoreLAB.CHUNK_POOL_INITIALSIZE_KEY +<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> " must be between 0.0 and 1.0");<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> }<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> int initialCount = (int) (initialCountPercentage * maxCount);<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> LOG.info("Allocating {} MemStoreChunkPool with chunk size {}, max count {}, initial count {}",<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> label, StringUtils.byteDesc(chunkSize), maxCount, initialCount);<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> MemStoreChunkPool memStoreChunkPool = new MemStoreChunkPool(label, chunkSize, maxCount,<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> initialCount, poolSizePercentage);<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> if (heapMemoryManager != null && memStoreChunkPool != null) {<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> // Register with Heap Memory manager<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> heapMemoryManager.registerTuneObserver(memStoreChunkPool);<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> }<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> return memStoreChunkPool;<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> }<a name="line.508"></a> |
| <span class="sourceLineNo">509</span><a name="line.509"></a> |
| <span class="sourceLineNo">510</span> @VisibleForTesting<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> int getMaxCount() {<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> return getMaxCount(ChunkType.DATA_CHUNK);<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> }<a name="line.513"></a> |
| <span class="sourceLineNo">514</span><a name="line.514"></a> |
| <span class="sourceLineNo">515</span> @VisibleForTesting<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> int getMaxCount(ChunkType chunkType) {<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> switch (chunkType) {<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> case INDEX_CHUNK:<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> if (indexChunksPool != null) {<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> return indexChunksPool.getMaxCount();<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> }<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> break;<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> case DATA_CHUNK:<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> if (dataChunksPool != null) {<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> return dataChunksPool.getMaxCount();<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> }<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> break;<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> default:<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> throw new IllegalArgumentException(<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> "chunkType must either be INDEX_CHUNK or DATA_CHUNK");<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> }<a name="line.531"></a> |
| <span class="sourceLineNo">532</span><a name="line.532"></a> |
| <span class="sourceLineNo">533</span> return 0;<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> }<a name="line.534"></a> |
| <span class="sourceLineNo">535</span><a name="line.535"></a> |
| <span class="sourceLineNo">536</span> @VisibleForTesting<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> int getPoolSize() {<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> return getPoolSize(ChunkType.DATA_CHUNK);<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> }<a name="line.539"></a> |
| <span class="sourceLineNo">540</span><a name="line.540"></a> |
| <span class="sourceLineNo">541</span> @VisibleForTesting<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> int getPoolSize(ChunkType chunkType) {<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> switch (chunkType) {<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> case INDEX_CHUNK:<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> if (indexChunksPool != null) {<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> return indexChunksPool.reclaimedChunks.size();<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> }<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> break;<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> case DATA_CHUNK:<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> if (dataChunksPool != null) {<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> return dataChunksPool.reclaimedChunks.size();<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> }<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> break;<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> default:<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> throw new IllegalArgumentException(<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> "chunkType must either be INDEX_CHUNK or DATA_CHUNK");<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> }<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> return 0;<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> }<a name="line.559"></a> |
| <span class="sourceLineNo">560</span><a name="line.560"></a> |
| <span class="sourceLineNo">561</span> @VisibleForTesting<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> boolean isChunkInPool(int chunkId) {<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> Chunk c = getChunk(chunkId);<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> if (c==null) {<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> return false;<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> }<a name="line.566"></a> |
| <span class="sourceLineNo">567</span><a name="line.567"></a> |
| <span class="sourceLineNo">568</span> // chunks that are from pool will return true chunk reference not null<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> if (dataChunksPool != null && dataChunksPool.reclaimedChunks.contains(c)) {<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> return true;<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> } else if (indexChunksPool != null && indexChunksPool.reclaimedChunks.contains(c)) {<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> return true;<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> }<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> return false;<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> }<a name="line.575"></a> |
| <span class="sourceLineNo">576</span><a name="line.576"></a> |
| <span class="sourceLineNo">577</span> /*<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> * Only used in testing<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> */<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> @VisibleForTesting<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> void clearChunksInPool() {<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> if (dataChunksPool != null) {<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> dataChunksPool.reclaimedChunks.clear();<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> }<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> if (indexChunksPool != null) {<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> indexChunksPool.reclaimedChunks.clear();<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> }<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> }<a name="line.588"></a> |
| <span class="sourceLineNo">589</span><a name="line.589"></a> |
| <span class="sourceLineNo">590</span> int getChunkSize() {<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> return getChunkSize(ChunkType.DATA_CHUNK);<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> }<a name="line.592"></a> |
| <span class="sourceLineNo">593</span><a name="line.593"></a> |
| <span class="sourceLineNo">594</span> int getChunkSize(ChunkType chunkType) {<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> switch (chunkType) {<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> case INDEX_CHUNK:<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> if (indexChunksPool != null) {<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> return indexChunksPool.getChunkSize();<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> }<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> case DATA_CHUNK:<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> if (dataChunksPool != null) {<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> return dataChunksPool.getChunkSize();<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> } else { // When pools are empty<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> return chunkSize;<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> }<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> default:<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> throw new IllegalArgumentException(<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> "chunkType must either be INDEX_CHUNK or DATA_CHUNK");<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> }<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> }<a name="line.610"></a> |
| <span class="sourceLineNo">611</span><a name="line.611"></a> |
| <span class="sourceLineNo">612</span> synchronized void putbackChunks(Set<Integer> chunks) {<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> // if there is no pool just try to clear the chunkIdMap in case there is something<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> if (dataChunksPool == null && indexChunksPool == null) {<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> this.removeChunks(chunks);<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> return;<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> // if there is a pool, go over all chunk IDs that came back, the chunks may be from pool or not<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> for (int chunkID : chunks) {<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> // translate chunk ID to chunk, if chunk initially wasn't in pool<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> // this translation will (most likely) return null<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> Chunk chunk = ChunkCreator.this.getChunk(chunkID);<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> if (chunk != null) {<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> if (chunk.isFromPool() && chunk.isIndexChunk()) {<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> indexChunksPool.putbackChunks(chunk);<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> } else if (chunk.isFromPool() && chunk.size == dataChunksPool.getChunkSize()) {<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> dataChunksPool.putbackChunks(chunk);<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> } else {<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> // chunks which are not from one of the pools<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> // should be released without going to the pools.<a name="line.631"></a> |
| <span class="sourceLineNo">632</span> // Removing them from chunkIdMap will cause their removal by the GC.<a name="line.632"></a> |
| <span class="sourceLineNo">633</span> this.removeChunk(chunkID);<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> }<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> }<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> // if chunk is null, it was never covered by the chunkIdMap (and so wasn't in pool also),<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> // so we have nothing to do on its release<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> }<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> return;<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> }<a name="line.640"></a> |
| <span class="sourceLineNo">641</span><a name="line.641"></a> |
| <span class="sourceLineNo">642</span>}<a name="line.642"></a> |
| <span class="sourceLineNo">643</span><a name="line.643"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
