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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> *<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Collections;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Iterator;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Objects;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.SortedSet;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.concurrent.atomic.AtomicReference;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.concurrent.locks.ReentrantReadWriteLock;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span><a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.Cell;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.CellComparator;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.io.TimeRange;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.slf4j.Logger;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span>/**<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * This is an abstraction of a segment maintained in a memstore, e.g., the active<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * cell set or its snapshot.<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> *<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * This abstraction facilitates the management of the compaction pipeline and the shifts of these<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * segments from active set to snapshot set in the default implementation.<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 abstract class Segment implements MemStoreSizing {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> public final static long FIXED_OVERHEAD = ClassSize.align(ClassSize.OBJECT<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> + 6 * ClassSize.REFERENCE // cellSet, comparator, updatesLock, memStoreLAB, memStoreSizing,<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> // and timeRangeTracker<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> + Bytes.SIZEOF_LONG // minSequenceId<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> + Bytes.SIZEOF_BOOLEAN); // tagsPresent<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> public final static long DEEP_OVERHEAD = FIXED_OVERHEAD + ClassSize.ATOMIC_REFERENCE<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> + ClassSize.CELL_SET + 2 * ClassSize.ATOMIC_LONG<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> + ClassSize.REENTRANT_LOCK;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private AtomicReference<CellSet> cellSet= new AtomicReference<>();<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> private final CellComparator comparator;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private ReentrantReadWriteLock updatesLock;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> protected long minSequenceId;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> private MemStoreLAB memStoreLAB;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> // Sum of sizes of all Cells added to this Segment. Cell's HeapSize is considered. This is not<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> // including the heap overhead of this class.<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> protected final MemStoreSizing memStoreSizing;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> protected final TimeRangeTracker timeRangeTracker;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> protected volatile boolean tagsPresent;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> // Empty constructor to be used when Segment is used as interface,<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> // and there is no need in true Segments state<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> protected Segment(CellComparator comparator, TimeRangeTracker trt) {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> this.comparator = comparator;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> // Do we need to be thread safe always? What if ImmutableSegment?<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> // DITTO for the TimeRangeTracker below.<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> this.memStoreSizing = new ThreadSafeMemStoreSizing();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> this.timeRangeTracker = trt;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> protected Segment(CellComparator comparator, List<ImmutableSegment> segments,<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> TimeRangeTracker trt) {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> long dataSize = 0;<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> long heapSize = 0;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> long OffHeapSize = 0;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> int cellsCount = 0;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> for (Segment segment : segments) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> MemStoreSize memStoreSize = segment.getMemStoreSize();<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> dataSize += memStoreSize.getDataSize();<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> heapSize += memStoreSize.getHeapSize();<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> OffHeapSize += memStoreSize.getOffHeapSize();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> cellsCount += memStoreSize.getCellsCount();<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> this.comparator = comparator;<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> this.updatesLock = new ReentrantReadWriteLock();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> // Do we need to be thread safe always? What if ImmutableSegment?<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> // DITTO for the TimeRangeTracker below.<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> this.memStoreSizing = new ThreadSafeMemStoreSizing(dataSize, heapSize, OffHeapSize, cellsCount);<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> this.timeRangeTracker = trt;<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> }<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> // This constructor is used to create empty Segments.<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> protected Segment(CellSet cellSet, CellComparator comparator, MemStoreLAB memStoreLAB, TimeRangeTracker trt) {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> this.cellSet.set(cellSet);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> this.comparator = comparator;<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> this.updatesLock = new ReentrantReadWriteLock();<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> this.minSequenceId = Long.MAX_VALUE;<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> this.memStoreLAB = memStoreLAB;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> // Do we need to be thread safe always? What if ImmutableSegment?<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> // DITTO for the TimeRangeTracker below.<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> this.memStoreSizing = new ThreadSafeMemStoreSizing();<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> this.tagsPresent = false;<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> this.timeRangeTracker = trt;<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> protected Segment(Segment segment) {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> this.cellSet.set(segment.getCellSet());<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> this.comparator = segment.getComparator();<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> this.updatesLock = segment.getUpdatesLock();<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> this.minSequenceId = segment.getMinSequenceId();<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> this.memStoreLAB = segment.getMemStoreLAB();<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> this.memStoreSizing = segment.memStoreSizing;<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> this.tagsPresent = segment.isTagsPresent();<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> this.timeRangeTracker = segment.getTimeRangeTracker();<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> /**<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> * Creates the scanner for the given read point<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * @return a scanner for the given read point<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> */<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> protected KeyValueScanner getScanner(long readPoint) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> return new SegmentScanner(this, readPoint);<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> public List<KeyValueScanner> getScanners(long readPoint) {<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> return Collections.singletonList(new SegmentScanner(this, readPoint));<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<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> * @return whether the segment has any cells<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> */<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> public boolean isEmpty() {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> return getCellSet().isEmpty();<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><a name="line.144"></a> |
| <span class="sourceLineNo">145</span> /**<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> * Closing a segment before it is being discarded<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> */<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> public void close() {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> if (this.memStoreLAB != null) {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> this.memStoreLAB.close();<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> }<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> // do not set MSLab to null as scanners may still be reading the data here and need to decrease<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> // the counter when they finish<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span><a name="line.155"></a> |
| <span class="sourceLineNo">156</span> /**<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> * If the segment has a memory allocator the cell is being cloned to this space, and returned;<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> * otherwise the given cell is returned<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> *<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> * When a cell's size is too big (bigger than maxAlloc), it is not allocated on MSLAB.<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> * Since the process of flattening to CellChunkMap assumes that all cells<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> * are allocated on MSLAB, during this process, the input parameter<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> * forceCloneOfBigCell is set to 'true' and the cell is copied into MSLAB.<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> *<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> * @return either the given cell or its clone<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> */<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> public Cell maybeCloneWithAllocator(Cell cell, boolean forceCloneOfBigCell) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (this.memStoreLAB == null) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> return cell;<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> }<a name="line.170"></a> |
| <span class="sourceLineNo">171</span><a name="line.171"></a> |
| <span class="sourceLineNo">172</span> Cell cellFromMslab;<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> if (forceCloneOfBigCell) {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> cellFromMslab = this.memStoreLAB.forceCopyOfBigCellInto(cell);<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> } else {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> cellFromMslab = this.memStoreLAB.copyCellInto(cell);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> return (cellFromMslab != null) ? cellFromMslab : cell;<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> /**<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> * Get cell length after serialized in {@link KeyValue}<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> */<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> @VisibleForTesting<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> static int getCellLength(Cell cell) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> return cell.getSerializedSize();<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> public boolean shouldSeek(TimeRange tr, long oldestUnexpiredTS) {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> return !isEmpty()<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> && (tr.isAllTime() || timeRangeTracker.includesTimeRange(tr))<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> && timeRangeTracker.getMax() >= oldestUnexpiredTS;<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> }<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> public boolean isTagsPresent() {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> return tagsPresent;<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> public void incScannerCount() {<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> if (this.memStoreLAB != null) {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> this.memStoreLAB.incScannerCount();<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span><a name="line.204"></a> |
| <span class="sourceLineNo">205</span> public void decScannerCount() {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> if (this.memStoreLAB != null) {<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> this.memStoreLAB.decScannerCount();<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> /**<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> * Setting the CellSet of the segment - used only for flat immutable segment for setting<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> * immutable CellSet after its creation in immutable segment constructor<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> * @return this object<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> protected Segment setCellSet(CellSet cellSetOld, CellSet cellSetNew) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> this.cellSet.compareAndSet(cellSetOld, cellSetNew);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> return this;<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> }<a name="line.220"></a> |
| <span class="sourceLineNo">221</span><a name="line.221"></a> |
| <span class="sourceLineNo">222</span> @Override<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> public MemStoreSize getMemStoreSize() {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> return this.memStoreSizing.getMemStoreSize();<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> }<a name="line.225"></a> |
| <span class="sourceLineNo">226</span><a name="line.226"></a> |
| <span class="sourceLineNo">227</span> @Override<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> public long getDataSize() {<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> return this.memStoreSizing.getDataSize();<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> @Override<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> public long getHeapSize() {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> return this.memStoreSizing.getHeapSize();<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span><a name="line.236"></a> |
| <span class="sourceLineNo">237</span> @Override<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> public long getOffHeapSize() {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> return this.memStoreSizing.getOffHeapSize();<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span><a name="line.241"></a> |
| <span class="sourceLineNo">242</span> @Override<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> public int getCellsCount() {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> return memStoreSizing.getCellsCount();<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span><a name="line.246"></a> |
| <span class="sourceLineNo">247</span> @Override<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> public long incMemStoreSize(long delta, long heapOverhead, long offHeapOverhead, int cellsCount) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> return this.memStoreSizing.incMemStoreSize(delta, heapOverhead, offHeapOverhead, cellsCount);<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span><a name="line.251"></a> |
| <span class="sourceLineNo">252</span> public boolean sharedLock() {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> return updatesLock.readLock().tryLock();<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> }<a name="line.254"></a> |
| <span class="sourceLineNo">255</span><a name="line.255"></a> |
| <span class="sourceLineNo">256</span> public void sharedUnlock() {<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> updatesLock.readLock().unlock();<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> }<a name="line.258"></a> |
| <span class="sourceLineNo">259</span><a name="line.259"></a> |
| <span class="sourceLineNo">260</span> public void waitForUpdates() {<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> if(!updatesLock.isWriteLocked()) {<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> updatesLock.writeLock().lock();<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> }<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span><a name="line.265"></a> |
| <span class="sourceLineNo">266</span> @Override<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> public boolean compareAndSetDataSize(long expected, long updated) {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> return memStoreSizing.compareAndSetDataSize(expected, updated);<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> }<a name="line.269"></a> |
| <span class="sourceLineNo">270</span><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> public long getMinSequenceId() {<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> return minSequenceId;<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> }<a name="line.273"></a> |
| <span class="sourceLineNo">274</span><a name="line.274"></a> |
| <span class="sourceLineNo">275</span> public TimeRangeTracker getTimeRangeTracker() {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> return this.timeRangeTracker;<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> }<a name="line.277"></a> |
| <span class="sourceLineNo">278</span><a name="line.278"></a> |
| <span class="sourceLineNo">279</span> //*** Methods for SegmentsScanner<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> public Cell last() {<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> return getCellSet().last();<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> }<a name="line.282"></a> |
| <span class="sourceLineNo">283</span><a name="line.283"></a> |
| <span class="sourceLineNo">284</span> public Iterator<Cell> iterator() {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> return getCellSet().iterator();<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> }<a name="line.286"></a> |
| <span class="sourceLineNo">287</span><a name="line.287"></a> |
| <span class="sourceLineNo">288</span> public SortedSet<Cell> headSet(Cell firstKeyOnRow) {<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> return getCellSet().headSet(firstKeyOnRow);<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> }<a name="line.290"></a> |
| <span class="sourceLineNo">291</span><a name="line.291"></a> |
| <span class="sourceLineNo">292</span> public int compare(Cell left, Cell right) {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> return getComparator().compare(left, right);<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> }<a name="line.294"></a> |
| <span class="sourceLineNo">295</span><a name="line.295"></a> |
| <span class="sourceLineNo">296</span> public int compareRows(Cell left, Cell right) {<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> return getComparator().compareRows(left, right);<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> }<a name="line.298"></a> |
| <span class="sourceLineNo">299</span><a name="line.299"></a> |
| <span class="sourceLineNo">300</span> /**<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> * @return a set of all cells in the segment<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> */<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> protected CellSet getCellSet() {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> return cellSet.get();<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> }<a name="line.305"></a> |
| <span class="sourceLineNo">306</span><a name="line.306"></a> |
| <span class="sourceLineNo">307</span> /**<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> * Returns the Cell comparator used by this segment<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> * @return the Cell comparator used by this segment<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> */<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> protected CellComparator getComparator() {<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> return comparator;<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> protected void internalAdd(Cell cell, boolean mslabUsed, MemStoreSizing memstoreSizing,<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> boolean sizeAddedPreOperation) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> boolean succ = getCellSet().add(cell);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> updateMetaInfo(cell, succ, mslabUsed, memstoreSizing, sizeAddedPreOperation);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span><a name="line.320"></a> |
| <span class="sourceLineNo">321</span> protected void updateMetaInfo(Cell cellToAdd, boolean succ, boolean mslabUsed,<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> MemStoreSizing memstoreSizing, boolean sizeAddedPreOperation) {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> long delta = 0;<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> long cellSize = getCellLength(cellToAdd);<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> int cellsCount = succ ? 1 : 0;<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> // If there's already a same cell in the CellSet and we are using MSLAB, we must count in the<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> // MSLAB allocation size as well, or else there will be memory leak (occupied heap size larger<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> // than the counted number)<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> if (succ || mslabUsed) {<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> delta = cellSize;<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> }<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> if (sizeAddedPreOperation) {<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> delta -= cellSize;<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> }<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> long heapSize = heapSizeChange(cellToAdd, succ || mslabUsed);<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> long offHeapSize = offHeapSizeChange(cellToAdd, succ || mslabUsed);<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> incMemStoreSize(delta, heapSize, offHeapSize, cellsCount);<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> if (memstoreSizing != null) {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> memstoreSizing.incMemStoreSize(delta, heapSize, offHeapSize, cellsCount);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> }<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> getTimeRangeTracker().includeTimestamp(cellToAdd);<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> minSequenceId = Math.min(minSequenceId, cellToAdd.getSequenceId());<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> // In no tags case this NoTagsKeyValue.getTagsLength() is a cheap call.<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> // When we use ACL CP or Visibility CP which deals with Tags during<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> // mutation, the TagRewriteCell.getTagsLength() is a cheaper call. We do not<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> // parse the byte[] to identify the tags length.<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> if (cellToAdd.getTagsLength() > 0) {<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> tagsPresent = true;<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> }<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> }<a name="line.350"></a> |
| <span class="sourceLineNo">351</span><a name="line.351"></a> |
| <span class="sourceLineNo">352</span> protected void updateMetaInfo(Cell cellToAdd, boolean succ, MemStoreSizing memstoreSizing) {<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> updateMetaInfo(cellToAdd, succ, (getMemStoreLAB()!=null), memstoreSizing, false);<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> }<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> * @return The increase in heap size because of this cell addition. This includes this cell POJO's<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> * heap size itself and additional overhead because of addition on to CSLM.<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> */<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> protected long heapSizeChange(Cell cell, boolean allocated) {<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> long res = 0;<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> if (allocated) {<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> boolean onHeap = true;<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> MemStoreLAB memStoreLAB = getMemStoreLAB();<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> if(memStoreLAB != null) {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> onHeap = memStoreLAB.isOnHeap();<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> }<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> res += indexEntryOnHeapSize(onHeap);<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> if(onHeap) {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> res += cell.heapSize();<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> }<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> res = ClassSize.align(res);<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> }<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> return res;<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> }<a name="line.375"></a> |
| <span class="sourceLineNo">376</span><a name="line.376"></a> |
| <span class="sourceLineNo">377</span> protected long offHeapSizeChange(Cell cell, boolean allocated) {<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> long res = 0;<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> if (allocated) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> boolean offHeap = false;<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> MemStoreLAB memStoreLAB = getMemStoreLAB();<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> if(memStoreLAB != null) {<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> offHeap = memStoreLAB.isOffHeap();<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> }<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> res += indexEntryOffHeapSize(offHeap);<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> if(offHeap) {<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> res += cell.heapSize();<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> }<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> res = ClassSize.align(res);<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> return res;<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> }<a name="line.392"></a> |
| <span class="sourceLineNo">393</span><a name="line.393"></a> |
| <span class="sourceLineNo">394</span> protected long indexEntryOnHeapSize(boolean onHeap) {<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> // in most cases index is allocated on-heap<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> // override this method when it is not always the case, e.g., in CCM<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> return indexEntrySize();<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> }<a name="line.398"></a> |
| <span class="sourceLineNo">399</span><a name="line.399"></a> |
| <span class="sourceLineNo">400</span> protected long indexEntryOffHeapSize(boolean offHeap) {<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> // in most cases index is allocated on-heap<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> // override this method when it is not always the case, e.g., in CCM<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> return 0;<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> }<a name="line.404"></a> |
| <span class="sourceLineNo">405</span><a name="line.405"></a> |
| <span class="sourceLineNo">406</span> protected abstract long indexEntrySize();<a name="line.406"></a> |
| <span class="sourceLineNo">407</span><a name="line.407"></a> |
| <span class="sourceLineNo">408</span> /**<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> * Returns a subset of the segment cell set, which starts with the given cell<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> * @param firstCell a cell in the segment<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> * @return a subset of the segment cell set, which starts with the given cell<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> */<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> protected SortedSet<Cell> tailSet(Cell firstCell) {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> return getCellSet().tailSet(firstCell);<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> }<a name="line.415"></a> |
| <span class="sourceLineNo">416</span><a name="line.416"></a> |
| <span class="sourceLineNo">417</span> @VisibleForTesting<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> MemStoreLAB getMemStoreLAB() {<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> return memStoreLAB;<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> }<a name="line.420"></a> |
| <span class="sourceLineNo">421</span><a name="line.421"></a> |
| <span class="sourceLineNo">422</span> // Debug methods<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> /**<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> * Dumps all cells of the segment into the given log<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> */<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> void dump(Logger log) {<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> for (Cell cell: getCellSet()) {<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> log.debug(Objects.toString(cell));<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> }<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> }<a name="line.430"></a> |
| <span class="sourceLineNo">431</span><a name="line.431"></a> |
| <span class="sourceLineNo">432</span> @Override<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> public String toString() {<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> String res = "type=" + this.getClass().getSimpleName() + ", ";<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> res += "empty=" + (isEmpty()? "yes": "no") + ", ";<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> res += "cellCount=" + getCellsCount() + ", ";<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> res += "cellSize=" + getDataSize() + ", ";<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> res += "totalHeapSize=" + getHeapSize() + ", ";<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> res += "min timestamp=" + timeRangeTracker.getMin() + ", ";<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> res += "max timestamp=" + timeRangeTracker.getMax();<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> return res;<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> }<a name="line.442"></a> |
| <span class="sourceLineNo">443</span><a name="line.443"></a> |
| <span class="sourceLineNo">444</span> private ReentrantReadWriteLock getUpdatesLock() {<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> return updatesLock;<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> }<a name="line.446"></a> |
| <span class="sourceLineNo">447</span>}<a name="line.447"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
