http://git-wip-us.apache.org/repos/asf/hbase-site/blob/cef8af03/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/ChunkCreator.MemStoreChunkPool.StatisticsThread.html
----------------------------------------------------------------------
diff --git
a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/ChunkCreator.MemStoreChunkPool.StatisticsThread.html
b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/ChunkCreator.MemStoreChunkPool.StatisticsThread.html
index ecd285a..976c905 100644
---
a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/ChunkCreator.MemStoreChunkPool.StatisticsThread.html
+++
b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/ChunkCreator.MemStoreChunkPool.StatisticsThread.html
@@ -26,439 +26,430 @@
<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>
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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.Map;<a
name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.util.Set;<a
name="line.24"></a>
-<span class="sourceLineNo">025</span>import
java.util.concurrent.BlockingQueue;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import
java.util.concurrent.ConcurrentHashMap;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import java.util.concurrent.Executors;<a
name="line.27"></a>
-<span class="sourceLineNo">028</span>import
java.util.concurrent.LinkedBlockingQueue;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import
java.util.concurrent.ScheduledExecutorService;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import java.util.concurrent.TimeUnit;<a
name="line.30"></a>
-<span class="sourceLineNo">031</span>import
java.util.concurrent.atomic.AtomicInteger;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import
java.util.concurrent.atomic.AtomicLong;<a name="line.32"></a>
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-<span class="sourceLineNo">034</span>import org.apache.commons.logging.Log;<a
name="line.34"></a>
-<span class="sourceLineNo">035</span>import
org.apache.commons.logging.LogFactory;<a name="line.35"></a>
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org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import
org.apache.hadoop.hbase.regionserver.HeapMemoryManager.HeapMemoryTuneObserver;<a
name="line.37"></a>
-<span class="sourceLineNo">038</span>import
org.apache.hadoop.hbase.util.Bytes;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import
org.apache.hadoop.util.StringUtils;<a name="line.39"></a>
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org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a
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org.apache.hadoop.hbase.shaded.com.google.common.util.concurrent.ThreadFactoryBuilder;<a
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-<span class="sourceLineNo">044</span>/**<a name="line.44"></a>
-<span class="sourceLineNo">045</span> * Does the management of memstoreLAB
chunk creations. A monotonically incrementing id is associated<a
name="line.45"></a>
-<span class="sourceLineNo">046</span> * with every chunk<a name="line.46"></a>
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name="line.48"></a>
-<span class="sourceLineNo">049</span>public class ChunkCreator {<a
name="line.49"></a>
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LogFactory.getLog(ChunkCreator.class);<a name="line.50"></a>
-<span class="sourceLineNo">051</span> // monotonically increasing chunkid<a
name="line.51"></a>
-<span class="sourceLineNo">052</span> private AtomicInteger chunkID = new
AtomicInteger(1);<a name="line.52"></a>
-<span class="sourceLineNo">053</span> // maps the chunk against the
monotonically increasing chunk id. We need to preserve the<a name="line.53"></a>
-<span class="sourceLineNo">054</span> // natural ordering of the key<a
name="line.54"></a>
-<span class="sourceLineNo">055</span> // CellChunkMap creation should convert
the weak ref to hard reference<a name="line.55"></a>
-<span class="sourceLineNo">056</span><a name="line.56"></a>
-<span class="sourceLineNo">057</span> // chunk id of each chunk is the first
integer written on each chunk,<a name="line.57"></a>
-<span class="sourceLineNo">058</span> // the header size need to be changed
in case chunk id size is changed<a name="line.58"></a>
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SIZEOF_CHUNK_HEADER = Bytes.SIZEOF_INT;<a name="line.59"></a>
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reference can be garbage collected, in opposite to an object<a
name="line.61"></a>
-<span class="sourceLineNo">062</span> // referenced by a strong (regular)
reference. Every chunk created via ChunkCreator is referenced<a
name="line.62"></a>
-<span class="sourceLineNo">063</span> // from either weakChunkIdMap or
strongChunkIdMap.<a name="line.63"></a>
-<span class="sourceLineNo">064</span> // Upon chunk C creation, C's ID is
mapped into weak reference to C, in order not to disturb C's<a
name="line.64"></a>
-<span class="sourceLineNo">065</span> // GC in case all other reference to C
are going to be removed.<a name="line.65"></a>
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CellChunkMap (via C's ID) it is possible to GC the chunk C.<a
name="line.66"></a>
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CellChunkMap, C's ID is mapped into strong (regular)<a name="line.67"></a>
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WeakReference<Chunk>>();<a name="line.72"></a>
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collection<a name="line.74"></a>
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strongChunkIdMap = new ConcurrentHashMap<Integer, Chunk>();<a
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false;<a name="line.82"></a>
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offheap, long globalMemStoreSize, float poolSizePercentage,<a
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HeapMemoryManager heapMemoryManager) {<a name="line.87"></a>
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name="line.88"></a>
-<span class="sourceLineNo">089</span> this.offheap = offheap;<a
name="line.89"></a>
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initializePool(globalMemStoreSize, poolSizePercentage,
initialCountPercentage);<a name="line.90"></a>
-<span class="sourceLineNo">091</span> if (heapMemoryManager != null
&& this.pool != null) {<a name="line.91"></a>
-<span class="sourceLineNo">092</span> // Register with Heap Memory
manager<a name="line.92"></a>
-<span class="sourceLineNo">093</span>
heapMemoryManager.registerTuneObserver(this.pool);<a name="line.93"></a>
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MSLABChunkCreator<a name="line.98"></a>
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name="line.99"></a>
-<span class="sourceLineNo">100</span> * @param offheap indicates if the
chunk is to be created offheap or not<a name="line.100"></a>
-<span class="sourceLineNo">101</span> * @param globalMemStoreSize the
global memstore size<a name="line.101"></a>
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percentage<a name="line.102"></a>
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initial count of the chunk pool if any<a name="line.103"></a>
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heapmemory manager<a name="line.104"></a>
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MSLABChunkCreator<a name="line.105"></a>
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@edu.umd.cs.findbugs.annotations.SuppressWarnings(value =
"LI_LAZY_INIT_STATIC",<a name="line.107"></a>
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name="line.109"></a>
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initialize(int chunkSize, boolean offheap, long globalMemStoreSize,<a
name="line.110"></a>
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initialCountPercentage, HeapMemoryManager heapMemoryManager) {<a
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INSTANCE;<a name="line.112"></a>
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ChunkCreator(chunkSize, offheap, globalMemStoreSize, poolSizePercentage,<a
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heapMemoryManager);<a name="line.114"></a>
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name="line.119"></a>
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-<span class="sourceLineNo">122</span> /**<a name="line.122"></a>
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-<span class="sourceLineNo">124</span> * @return the chunk that was
initialized<a name="line.124"></a>
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name="line.127"></a>
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name="line.128"></a>
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internally. The chunk#init() call happens here<a name="line.129"></a>
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name="line.130"></a>
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maxCount<a name="line.131"></a>
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name="line.132"></a>
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name="line.133"></a>
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full. Reached maxCount= " + this.pool.getMaxCount()<a name="line.134"></a>
-<span class="sourceLineNo">135</span> + ". Creating chunk
onheap.");<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">021</span>import java.util.Iterator;<a
name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.util.Map;<a
name="line.22"></a>
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name="line.23"></a>
+<span class="sourceLineNo">024</span>import
java.util.concurrent.BlockingQueue;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import
java.util.concurrent.ConcurrentHashMap;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.concurrent.Executors;<a
name="line.26"></a>
+<span class="sourceLineNo">027</span>import
java.util.concurrent.LinkedBlockingQueue;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import
java.util.concurrent.ScheduledExecutorService;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.concurrent.TimeUnit;<a
name="line.29"></a>
+<span class="sourceLineNo">030</span>import
java.util.concurrent.atomic.AtomicInteger;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import
java.util.concurrent.atomic.AtomicLong;<a name="line.31"></a>
+<span class="sourceLineNo">032</span><a name="line.32"></a>
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name="line.33"></a>
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org.apache.commons.logging.LogFactory;<a name="line.34"></a>
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org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.35"></a>
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org.apache.hadoop.hbase.regionserver.HeapMemoryManager.HeapMemoryTuneObserver;<a
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org.apache.hadoop.hbase.util.Bytes;<a name="line.37"></a>
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org.apache.hadoop.util.StringUtils;<a name="line.38"></a>
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+<span class="sourceLineNo">040</span>import
org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a
name="line.40"></a>
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org.apache.hadoop.hbase.shaded.com.google.common.util.concurrent.ThreadFactoryBuilder;<a
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+<span class="sourceLineNo">042</span><a name="line.42"></a>
+<span class="sourceLineNo">043</span>/**<a name="line.43"></a>
+<span class="sourceLineNo">044</span> * Does the management of memstoreLAB
chunk creations. A monotonically incrementing id is associated<a
name="line.44"></a>
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+<span class="sourceLineNo">046</span> */<a name="line.46"></a>
+<span class="sourceLineNo">047</span>@InterfaceAudience.Private<a
name="line.47"></a>
+<span class="sourceLineNo">048</span>public class ChunkCreator {<a
name="line.48"></a>
+<span class="sourceLineNo">049</span> private static final Log LOG =
LogFactory.getLog(ChunkCreator.class);<a name="line.49"></a>
+<span class="sourceLineNo">050</span> // monotonically increasing chunkid<a
name="line.50"></a>
+<span class="sourceLineNo">051</span> private AtomicInteger chunkID = new
AtomicInteger(1);<a name="line.51"></a>
+<span class="sourceLineNo">052</span> // maps the chunk against the
monotonically increasing chunk id. We need to preserve the<a name="line.52"></a>
+<span class="sourceLineNo">053</span> // natural ordering of the key<a
name="line.53"></a>
+<span class="sourceLineNo">054</span> // CellChunkMap creation should convert
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+<span class="sourceLineNo">055</span><a name="line.55"></a>
+<span class="sourceLineNo">056</span> // chunk id of each chunk is the first
integer written on each chunk,<a name="line.56"></a>
+<span class="sourceLineNo">057</span> // the header size need to be changed
in case chunk id size is changed<a name="line.57"></a>
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chunkIdMap = new ConcurrentHashMap<Integer, Chunk>();<a
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false;<a name="line.68"></a>
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offheap, long globalMemStoreSize, float poolSizePercentage,<a
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HeapMemoryManager heapMemoryManager) {<a name="line.73"></a>
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initializePool(globalMemStoreSize, poolSizePercentage,
initialCountPercentage);<a name="line.76"></a>
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&& this.pool != null) {<a name="line.77"></a>
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manager<a name="line.78"></a>
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heapMemoryManager.registerTuneObserver(this.pool);<a name="line.79"></a>
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initial count of the chunk pool if any<a name="line.89"></a>
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heapmemory manager<a name="line.90"></a>
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MSLABChunkCreator<a name="line.91"></a>
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@edu.umd.cs.findbugs.annotations.SuppressWarnings(value =
"LI_LAZY_INIT_STATIC",<a name="line.93"></a>
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by single thread at the starting of RS")<a name="line.94"></a>
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initialize(int chunkSize, boolean offheap, long globalMemStoreSize,<a
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+<span class="sourceLineNo">097</span> float poolSizePercentage, float
initialCountPercentage, HeapMemoryManager heapMemoryManager) {<a
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+<span class="sourceLineNo">098</span> if (INSTANCE != null) return
INSTANCE;<a name="line.98"></a>
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ChunkCreator(chunkSize, offheap, globalMemStoreSize, poolSizePercentage,<a
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+<span class="sourceLineNo">100</span> initialCountPercentage,
heapMemoryManager);<a name="line.100"></a>
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default implementation.<a name="line.109"></a>
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initialized<a name="line.110"></a>
+<span class="sourceLineNo">111</span> */<a name="line.111"></a>
+<span class="sourceLineNo">112</span> Chunk getChunk() {<a
name="line.112"></a>
+<span class="sourceLineNo">113</span> return
getChunk(CompactingMemStore.IndexType.ARRAY_MAP);<a name="line.113"></a>
+<span class="sourceLineNo">114</span> }<a name="line.114"></a>
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+<span class="sourceLineNo">116</span> /**<a name="line.116"></a>
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+<span class="sourceLineNo">118</span> * @return the chunk that was
initialized<a name="line.118"></a>
+<span class="sourceLineNo">119</span> * @param chunkIndexType whether the
requested chunk is going to be used with CellChunkMap index<a
name="line.119"></a>
+<span class="sourceLineNo">120</span> */<a name="line.120"></a>
+<span class="sourceLineNo">121</span> Chunk
getChunk(CompactingMemStore.IndexType chunkIndexType) {<a name="line.121"></a>
+<span class="sourceLineNo">122</span> Chunk chunk = null;<a
name="line.122"></a>
+<span class="sourceLineNo">123</span> if (pool != null) {<a
name="line.123"></a>
+<span class="sourceLineNo">124</span> // the pool creates the chunk
internally. The chunk#init() call happens here<a name="line.124"></a>
+<span class="sourceLineNo">125</span> chunk = this.pool.getChunk();<a
name="line.125"></a>
+<span class="sourceLineNo">126</span> // the pool has run out of
maxCount<a name="line.126"></a>
+<span class="sourceLineNo">127</span> if (chunk == null) {<a
name="line.127"></a>
+<span class="sourceLineNo">128</span> if (LOG.isTraceEnabled()) {<a
name="line.128"></a>
+<span class="sourceLineNo">129</span> LOG.trace("The chunk pool is
full. Reached maxCount= " + this.pool.getMaxCount()<a name="line.129"></a>
+<span class="sourceLineNo">130</span> + ". Creating chunk
onheap.");<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> }<a name="line.133"></a>
+<span class="sourceLineNo">134</span> if (chunk == null) {<a
name="line.134"></a>
+<span class="sourceLineNo">135</span> // the second boolean parameter
means:<a name="line.135"></a>
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requested, put allocated on demand chunk mapping into chunkIdMap<a
name="line.136"></a>
+<span class="sourceLineNo">137</span> chunk = createChunk(false,
chunkIndexType);<a name="line.137"></a>
<span class="sourceLineNo">138</span> }<a name="line.138"></a>
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name="line.139"></a>
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weakChunkIdMap<a name="line.142"></a>
-<span class="sourceLineNo">143</span>
this.weakChunkIdMap.put(chunk.getId(), new WeakReference<>(chunk));<a
name="line.143"></a>
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expensive memory allocation step in case of a new chunk,<a name="line.144"></a>
-<span class="sourceLineNo">145</span> // else only the offset is set to the
beginning of the chunk to accept allocations<a name="line.145"></a>
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name="line.150"></a>
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name="line.151"></a>
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-<span class="sourceLineNo">154</span> /**<a name="line.154"></a>
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offheap<a name="line.155"></a>
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name="line.157"></a>
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{<a name="line.159"></a>
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name="line.160"></a>
-<span class="sourceLineNo">161</span> assert id > 0;<a
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name="line.163"></a>
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id, pool);<a name="line.164"></a>
-<span class="sourceLineNo">165</span> } else {<a name="line.165"></a>
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id, pool);<a name="line.166"></a>
-<span class="sourceLineNo">167</span> }<a name="line.167"></a>
-<span class="sourceLineNo">168</span> }<a name="line.168"></a>
-<span class="sourceLineNo">169</span><a name="line.169"></a>
-<span class="sourceLineNo">170</span> @VisibleForTesting<a
name="line.170"></a>
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chunk ref<a name="line.171"></a>
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name="line.172"></a>
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weakChunkIdMap.get(id);<a name="line.173"></a>
-<span class="sourceLineNo">174</span> if (ref != null) {<a
name="line.174"></a>
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name="line.175"></a>
-<span class="sourceLineNo">176</span> }<a name="line.176"></a>
-<span class="sourceLineNo">177</span> // check also the strong mapping<a
name="line.177"></a>
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name="line.178"></a>
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-<span class="sourceLineNo">180</span><a name="line.180"></a>
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strong chunk pointer<a name="line.181"></a>
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name="line.182"></a>
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strongChunkIdMap.get(chunkID); // check whether the chunk is already
protected<a name="line.183"></a>
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// with strong pointer<a name="line.184"></a>
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weakChunkIdMap.get(chunkID);<a name="line.186"></a>
-<span class="sourceLineNo">187</span> if (ref != null) {<a
name="line.187"></a>
-<span class="sourceLineNo">188</span> c = ref.get();<a
name="line.188"></a>
-<span class="sourceLineNo">189</span> }<a name="line.189"></a>
-<span class="sourceLineNo">190</span> if (c != null) {<a
name="line.190"></a>
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chunk into the strongChunkIdMap<a name="line.191"></a>
-<span class="sourceLineNo">192</span> // the read of the weakMap is
always happening before the read of the strongMap<a name="line.192"></a>
-<span class="sourceLineNo">193</span> // so no synchronization issues
here<a name="line.193"></a>
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c);<a name="line.194"></a>
-<span class="sourceLineNo">195</span>
this.weakChunkIdMap.remove(chunkID);<a name="line.195"></a>
-<span class="sourceLineNo">196</span> return c;<a name="line.196"></a>
-<span class="sourceLineNo">197</span> }<a name="line.197"></a>
-<span class="sourceLineNo">198</span> // we should actually never return
null as someone should not ask to save from GC a chunk,<a name="line.198"></a>
-<span class="sourceLineNo">199</span> // which is already released.
However, we are not asserting it here and we let the caller<a
name="line.199"></a>
-<span class="sourceLineNo">200</span> // to deal with the return value an
assert if needed<a name="line.200"></a>
-<span class="sourceLineNo">201</span> return null;<a name="line.201"></a>
+<span class="sourceLineNo">139</span><a name="line.139"></a>
+<span class="sourceLineNo">140</span> // now we need to actually do the
expensive memory allocation step in case of a new chunk,<a name="line.140"></a>
+<span class="sourceLineNo">141</span> // else only the offset is set to the
beginning of the chunk to accept allocations<a name="line.141"></a>
+<span class="sourceLineNo">142</span> chunk.init();<a name="line.142"></a>
+<span class="sourceLineNo">143</span> return chunk;<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> /**<a name="line.146"></a>
+<span class="sourceLineNo">147</span> * Creates the chunk either onheap or
offheap<a name="line.147"></a>
+<span class="sourceLineNo">148</span> * @param pool indicates if the chunks
have to be created which will be used by the Pool<a name="line.148"></a>
+<span class="sourceLineNo">149</span> * @param chunkIndexType<a
name="line.149"></a>
+<span class="sourceLineNo">150</span> * @return the chunk<a
name="line.150"></a>
+<span class="sourceLineNo">151</span> */<a name="line.151"></a>
+<span class="sourceLineNo">152</span> private Chunk createChunk(boolean pool,
CompactingMemStore.IndexType chunkIndexType) {<a name="line.152"></a>
+<span class="sourceLineNo">153</span> Chunk chunk = null;<a
name="line.153"></a>
+<span class="sourceLineNo">154</span> int id = chunkID.getAndIncrement();<a
name="line.154"></a>
+<span class="sourceLineNo">155</span> assert id > 0;<a
name="line.155"></a>
+<span class="sourceLineNo">156</span> // do not create offheap chunk on
demand<a name="line.156"></a>
+<span class="sourceLineNo">157</span> if (pool && this.offheap) {<a
name="line.157"></a>
+<span class="sourceLineNo">158</span> chunk = new OffheapChunk(chunkSize,
id, pool);<a name="line.158"></a>
+<span class="sourceLineNo">159</span> } else {<a name="line.159"></a>
+<span class="sourceLineNo">160</span> chunk = new OnheapChunk(chunkSize,
id, pool);<a name="line.160"></a>
+<span class="sourceLineNo">161</span> }<a name="line.161"></a>
+<span class="sourceLineNo">162</span> if (pool || (chunkIndexType ==
CompactingMemStore.IndexType.CHUNK_MAP)) {<a name="line.162"></a>
+<span class="sourceLineNo">163</span> // put the pool chunk into the
chunkIdMap so it is not GC-ed<a name="line.163"></a>
+<span class="sourceLineNo">164</span> this.chunkIdMap.put(chunk.getId(),
chunk);<a name="line.164"></a>
+<span class="sourceLineNo">165</span> }<a name="line.165"></a>
+<span class="sourceLineNo">166</span> return chunk;<a name="line.166"></a>
+<span class="sourceLineNo">167</span> }<a name="line.167"></a>
+<span class="sourceLineNo">168</span><a name="line.168"></a>
+<span class="sourceLineNo">169</span> @VisibleForTesting<a
name="line.169"></a>
+<span class="sourceLineNo">170</span> // Used to translate the ChunkID into a
chunk ref<a name="line.170"></a>
+<span class="sourceLineNo">171</span> Chunk getChunk(int id) {<a
name="line.171"></a>
+<span class="sourceLineNo">172</span> // can return null if chunk was never
mapped<a name="line.172"></a>
+<span class="sourceLineNo">173</span> return chunkIdMap.get(id);<a
name="line.173"></a>
+<span class="sourceLineNo">174</span> }<a name="line.174"></a>
+<span class="sourceLineNo">175</span><a name="line.175"></a>
+<span class="sourceLineNo">176</span> int getChunkSize() {<a
name="line.176"></a>
+<span class="sourceLineNo">177</span> return this.chunkSize;<a
name="line.177"></a>
+<span class="sourceLineNo">178</span> }<a name="line.178"></a>
+<span class="sourceLineNo">179</span><a name="line.179"></a>
+<span class="sourceLineNo">180</span> boolean isOffheap() {<a
name="line.180"></a>
+<span class="sourceLineNo">181</span> return this.offheap;<a
name="line.181"></a>
+<span class="sourceLineNo">182</span> }<a name="line.182"></a>
+<span class="sourceLineNo">183</span><a name="line.183"></a>
+<span class="sourceLineNo">184</span> private void
removeChunks(Set<Integer> chunkIDs) {<a name="line.184"></a>
+<span class="sourceLineNo">185</span>
this.chunkIdMap.keySet().removeAll(chunkIDs);<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> Chunk removeChunk(int chunkId) {<a
name="line.188"></a>
+<span class="sourceLineNo">189</span> return
this.chunkIdMap.remove(chunkId);<a name="line.189"></a>
+<span class="sourceLineNo">190</span> }<a name="line.190"></a>
+<span class="sourceLineNo">191</span><a name="line.191"></a>
+<span class="sourceLineNo">192</span> @VisibleForTesting<a
name="line.192"></a>
+<span class="sourceLineNo">193</span> // the chunks in the chunkIdMap may
already be released so we shouldn't relay<a name="line.193"></a>
+<span class="sourceLineNo">194</span> // on this counting for strong
correctness. This method is used only in testing.<a name="line.194"></a>
+<span class="sourceLineNo">195</span> int numberOfMappedChunks() {<a
name="line.195"></a>
+<span class="sourceLineNo">196</span> return this.chunkIdMap.size();<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> @VisibleForTesting<a
name="line.199"></a>
+<span class="sourceLineNo">200</span> void clearChunkIds() {<a
name="line.200"></a>
+<span class="sourceLineNo">201</span> this.chunkIdMap.clear();<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>
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name="line.204"></a>
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name="line.205"></a>
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this.weakChunkIdMap.keySet().removeAll(chunkIDs);<a name="line.213"></a>
-<span class="sourceLineNo">214</span>
this.strongChunkIdMap.keySet().removeAll(chunkIDs);<a name="line.214"></a>
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-<span class="sourceLineNo">217</span> Chunk removeChunk(int chunkId) {<a
name="line.217"></a>
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this.weakChunkIdMap.remove(chunkId);<a name="line.218"></a>
-<span class="sourceLineNo">219</span> Chunk strong =
this.strongChunkIdMap.remove(chunkId);<a name="line.219"></a>
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-<span class="sourceLineNo">226</span> @VisibleForTesting<a
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this.weakChunkIdMap.size()+this.strongChunkIdMap.size();<a name="line.230"></a>
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name="line.235"></a>
-<span class="sourceLineNo">236</span> this.weakChunkIdMap.clear();<a
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-<span class="sourceLineNo">238</span><a name="line.238"></a>
-<span class="sourceLineNo">239</span> /**<a name="line.239"></a>
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name="line.240"></a>
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-<span class="sourceLineNo">243</span> * decrease allocating bytes when
writing, thereby optimizing the garbage<a name="line.243"></a>
-<span class="sourceLineNo">244</span> * collection on JVM.<a
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name="line.249"></a>
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BlockingQueue<Chunk> reclaimedChunks;<a name="line.250"></a>
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poolSizePercentage;<a name="line.251"></a>
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*/<a name="line.253"></a>
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ScheduledExecutorService scheduleThreadPool;<a name="line.254"></a>
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statThreadPeriod = 60 * 5;<a name="line.256"></a>
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new AtomicLong();<a name="line.257"></a>
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reusedChunkCount = new AtomicLong();<a name="line.258"></a>
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name="line.261"></a>
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poolSizePercentage;<a name="line.262"></a>
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LinkedBlockingQueue<>();<a name="line.263"></a>
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initialCount; i++) {<a name="line.264"></a>
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createChunk(true);<a name="line.265"></a>
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Thread.currentThread().getName();<a name="line.270"></a>
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Executors.newScheduledThreadPool(1, new ThreadFactoryBuilder()<a
name="line.271"></a>
-<span class="sourceLineNo">272</span> .setNameFormat(n +
"-MemStoreChunkPool Statistics").setDaemon(true).build());<a
name="line.272"></a>
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this.scheduleThreadPool.scheduleAtFixedRate(new StatisticsThread(),
statThreadPeriod,<a name="line.273"></a>
-<span class="sourceLineNo">274</span> statThreadPeriod,
TimeUnit.SECONDS);<a name="line.274"></a>
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it if not null, else create a new chunk to return if we have<a
name="line.278"></a>
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count. When we have already created max allowed chunks and<a
name="line.279"></a>
-<span class="sourceLineNo">280</span> * no free chunks as of now, return
null. It is the responsibility of the caller to make a chunk<a
name="line.280"></a>
-<span class="sourceLineNo">281</span> * then.<a name="line.281"></a>
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name="line.283"></a>
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reclaimedChunks.poll();<a name="line.287"></a>
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name="line.288"></a>
-<span class="sourceLineNo">289</span> chunk.reset();<a
name="line.289"></a>
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reusedChunkCount.incrementAndGet();<a name="line.290"></a>
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yet created the maxCount chunks<a name="line.292"></a>
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{<a name="line.295"></a>
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(this.chunkCount.compareAndSet(created, created + 1)) {<a name="line.296"></a>
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-<span class="sourceLineNo">308</span> /**<a name="line.308"></a>
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putbackChunks(Set<Integer> chunks) {<a name="line.313"></a>
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this.maxCount - reclaimedChunks.size());<a name="line.314"></a>
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iterator.next();<a name="line.317"></a>
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though they are from the pool or not<a name="line.318"></a>
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ChunkCreator.this.removeChunk(chunkId);<a name="line.319"></a>
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+<span class="sourceLineNo">205</span> * A pool of {@link Chunk} instances.<a
name="line.205"></a>
+<span class="sourceLineNo">206</span> *<a name="line.206"></a>
+<span class="sourceLineNo">207</span> * MemStoreChunkPool caches a number of
retired chunks for reusing, it could<a name="line.207"></a>
+<span class="sourceLineNo">208</span> * decrease allocating bytes when
writing, thereby optimizing the garbage<a name="line.208"></a>
+<span class="sourceLineNo">209</span> * collection on JVM.<a
name="line.209"></a>
+<span class="sourceLineNo">210</span> */<a name="line.210"></a>
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implements HeapMemoryTuneObserver {<a name="line.211"></a>
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name="line.212"></a>
+<span class="sourceLineNo">213</span><a name="line.213"></a>
+<span class="sourceLineNo">214</span> // A queue of reclaimed chunks<a
name="line.214"></a>
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BlockingQueue<Chunk> reclaimedChunks;<a name="line.215"></a>
+<span class="sourceLineNo">216</span> private final float
poolSizePercentage;<a name="line.216"></a>
+<span class="sourceLineNo">217</span><a name="line.217"></a>
+<span class="sourceLineNo">218</span> /** Statistics thread schedule pool
*/<a name="line.218"></a>
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ScheduledExecutorService scheduleThreadPool;<a name="line.219"></a>
+<span class="sourceLineNo">220</span> /** Statistics thread */<a
name="line.220"></a>
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statThreadPeriod = 60 * 5;<a name="line.221"></a>
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new AtomicLong();<a name="line.222"></a>
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reusedChunkCount = new AtomicLong();<a name="line.223"></a>
+<span class="sourceLineNo">224</span><a name="line.224"></a>
+<span class="sourceLineNo">225</span> MemStoreChunkPool(int maxCount, int
initialCount, float poolSizePercentage) {<a name="line.225"></a>
+<span class="sourceLineNo">226</span> this.maxCount = maxCount;<a
name="line.226"></a>
+<span class="sourceLineNo">227</span> this.poolSizePercentage =
poolSizePercentage;<a name="line.227"></a>
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LinkedBlockingQueue<>();<a name="line.228"></a>
+<span class="sourceLineNo">229</span> for (int i = 0; i <
initialCount; i++) {<a name="line.229"></a>
+<span class="sourceLineNo">230</span> // Chunks from pool are covered
with strong references anyway<a name="line.230"></a>
+<span class="sourceLineNo">231</span> // TODO: change to CHUNK_MAP if
it is generally defined<a name="line.231"></a>
+<span class="sourceLineNo">232</span> Chunk chunk = createChunk(true,
CompactingMemStore.IndexType.ARRAY_MAP);<a name="line.232"></a>
+<span class="sourceLineNo">233</span> chunk.init();<a
name="line.233"></a>
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name="line.234"></a>
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+<span class="sourceLineNo">236</span> chunkCount.set(initialCount);<a
name="line.236"></a>
+<span class="sourceLineNo">237</span> final String n =
Thread.currentThread().getName();<a name="line.237"></a>
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Executors.newScheduledThreadPool(1, new ThreadFactoryBuilder()<a
name="line.238"></a>
+<span class="sourceLineNo">239</span> .setNameFormat(n +
"-MemStoreChunkPool Statistics").setDaemon(true).build());<a
name="line.239"></a>
+<span class="sourceLineNo">240</span>
this.scheduleThreadPool.scheduleAtFixedRate(new StatisticsThread(),
statThreadPeriod,<a name="line.240"></a>
+<span class="sourceLineNo">241</span> statThreadPeriod,
TimeUnit.SECONDS);<a name="line.241"></a>
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+<span class="sourceLineNo">243</span><a name="line.243"></a>
+<span class="sourceLineNo">244</span> /**<a name="line.244"></a>
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it if not null, else create a new chunk to return if we have<a
name="line.245"></a>
+<span class="sourceLineNo">246</span> * not yet created max allowed chunks
count. When we have already created max allowed chunks and<a
name="line.246"></a>
+<span class="sourceLineNo">247</span> * no free chunks as of now, return
null. It is the responsibility of the caller to make a chunk<a
name="line.247"></a>
+<span class="sourceLineNo">248</span> * then.<a name="line.248"></a>
+<span class="sourceLineNo">249</span> * Note: Chunks returned by this pool
must be put back to the pool after its use.<a name="line.249"></a>
+<span class="sourceLineNo">250</span> * @return a chunk<a
name="line.250"></a>
+<span class="sourceLineNo">251</span> * @see #putbackChunks(Chunk)<a
name="line.251"></a>
+<span class="sourceLineNo">252</span> */<a name="line.252"></a>
+<span class="sourceLineNo">253</span> Chunk getChunk() {<a
name="line.253"></a>
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reclaimedChunks.poll();<a name="line.254"></a>
+<span class="sourceLineNo">255</span> if (chunk != null) {<a
name="line.255"></a>
+<span class="sourceLineNo">256</span> chunk.reset();<a
name="line.256"></a>
+<span class="sourceLineNo">257</span>
reusedChunkCount.incrementAndGet();<a name="line.257"></a>
+<span class="sourceLineNo">258</span> } else {<a name="line.258"></a>
+<span class="sourceLineNo">259</span> // Make a chunk iff we have not
yet created the maxCount chunks<a name="line.259"></a>
+<span class="sourceLineNo">260</span> while (true) {<a
name="line.260"></a>
+<span class="sourceLineNo">261</span> long created =
this.chunkCount.get();<a name="line.261"></a>
+<span class="sourceLineNo">262</span> if (created < this.maxCount)
{<a name="line.262"></a>
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(this.chunkCount.compareAndSet(created, created + 1)) {<a name="line.263"></a>
+<span class="sourceLineNo">264</span> // TODO: change to
CHUNK_MAP if it is generally defined<a name="line.264"></a>
+<span class="sourceLineNo">265</span> chunk = createChunk(true,
CompactingMemStore.IndexType.ARRAY_MAP);<a name="line.265"></a>
+<span class="sourceLineNo">266</span> break;<a
name="line.266"></a>
+<span class="sourceLineNo">267</span> }<a name="line.267"></a>
+<span class="sourceLineNo">268</span> } else {<a name="line.268"></a>
+<span class="sourceLineNo">269</span> break;<a name="line.269"></a>
+<span class="sourceLineNo">270</span> }<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> return chunk;<a name="line.273"></a>
+<span class="sourceLineNo">274</span> }<a name="line.274"></a>
+<span class="sourceLineNo">275</span><a name="line.275"></a>
+<span class="sourceLineNo">276</span> /**<a name="line.276"></a>
+<span class="sourceLineNo">277</span> * Add the chunks to the pool, when
the pool achieves the max size, it will skip the remaining<a
name="line.277"></a>
+<span class="sourceLineNo">278</span> * chunks<a name="line.278"></a>
+<span class="sourceLineNo">279</span> * @param c<a name="line.279"></a>
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{<a name="line.281"></a>
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reclaimedChunks.size();<a name="line.282"></a>
+<span class="sourceLineNo">283</span> if (c.isFromPool() && toAdd
> 0) {<a name="line.283"></a>
+<span class="sourceLineNo">284</span> reclaimedChunks.add(c);<a
name="line.284"></a>
+<span class="sourceLineNo">285</span> } else {<a name="line.285"></a>
+<span class="sourceLineNo">286</span> // remove the chunk (that is not
going to pool)<a name="line.286"></a>
+<span class="sourceLineNo">287</span> // though it is initially from
the pool or not<a name="line.287"></a>
+<span class="sourceLineNo">288</span>
ChunkCreator.this.removeChunk(c.getId());<a name="line.288"></a>
+<span class="sourceLineNo">289</span> }<a name="line.289"></a>
+<span class="sourceLineNo">290</span> }<a name="line.290"></a>
+<span class="sourceLineNo">291</span><a name="line.291"></a>
+<span class="sourceLineNo">292</span> private class StatisticsThread
extends Thread {<a name="line.292"></a>
+<span class="sourceLineNo">293</span> StatisticsThread() {<a
name="line.293"></a>
+<span class="sourceLineNo">294</span>
super("MemStoreChunkPool.StatisticsThread");<a name="line.294"></a>
+<span class="sourceLineNo">295</span> setDaemon(true);<a
name="line.295"></a>
+<span class="sourceLineNo">296</span> }<a name="line.296"></a>
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+<span class="sourceLineNo">298</span> @Override<a name="line.298"></a>
+<span class="sourceLineNo">299</span> public void run() {<a
name="line.299"></a>
+<span class="sourceLineNo">300</span> logStats();<a name="line.300"></a>
+<span class="sourceLineNo">301</span> }<a name="line.301"></a>
+<span class="sourceLineNo">302</span><a name="line.302"></a>
+<span class="sourceLineNo">303</span> private void logStats() {<a
name="line.303"></a>
+<span class="sourceLineNo">304</span> if (!LOG.isDebugEnabled())
return;<a name="line.304"></a>
+<span class="sourceLineNo">305</span> long created =
chunkCount.get();<a name="line.305"></a>
+<span class="sourceLineNo">306</span> long reused =
reusedChunkCount.get();<a name="line.306"></a>
+<span class="sourceLineNo">307</span> long total = created + reused;<a
name="line.307"></a>
+<span class="sourceLineNo">308</span> LOG.debug("Stats: current pool
size=" + reclaimedChunks.size()<a name="line.308"></a>
+<span class="sourceLineNo">309</span> + ",created chunk count=" +
created<a name="line.309"></a>
+<span class="sourceLineNo">310</span> + ",reused chunk count=" +
reused<a name="line.310"></a>
+<span class="sourceLineNo">311</span> + ",reuseRatio=" + (total ==
0 ? "0" : StringUtils.formatPercent(<a name="line.311"></a>
+<span class="sourceLineNo">312</span> (float) reused / (float)
total, 2)));<a name="line.312"></a>
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+<span class="sourceLineNo">314</span> }<a name="line.314"></a>
+<span class="sourceLineNo">315</span><a name="line.315"></a>
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name="line.316"></a>
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name="line.317"></a>
+<span class="sourceLineNo">318</span> }<a name="line.318"></a>
+<span class="sourceLineNo">319</span><a name="line.319"></a>
+<span class="sourceLineNo">320</span> @Override<a name="line.320"></a>
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newMemstoreSize, long newBlockCacheSize) {<a name="line.321"></a>
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offheap memstore<a name="line.322"></a>
+<span class="sourceLineNo">323</span> if (isOffheap()) {<a
name="line.323"></a>
+<span class="sourceLineNo">324</span> LOG.warn("Not tuning the chunk
pool as it is offheap");<a name="line.324"></a>
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<span class="sourceLineNo">326</span> }<a name="line.326"></a>
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super("MemStoreChunkPool.StatisticsThread");<a name="line.331"></a>
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return;<a name="line.341"></a>
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chunkCount.get();<a name="line.342"></a>
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reusedChunkCount.get();<a name="line.343"></a>
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name="line.344"></a>
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size=" + reclaimedChunks.size()<a name="line.345"></a>
-<span class="sourceLineNo">346</span> + ",created chunk count=" +
created<a name="line.346"></a>
-<span class="sourceLineNo">347</span> + ",reused chunk count=" +
reused<a name="line.347"></a>
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0 ? "0" : StringUtils.formatPercent(<a name="line.348"></a>
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poolSizePercentage / getChunkSize());<a name="line.328"></a>
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{<a name="line.329"></a>
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chunks numbers<a name="line.330"></a>
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this.maxCount) {<a name="line.331"></a>
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increased. Just change the variable. Later calls to getChunk() would<a
name="line.332"></a>
+<span class="sourceLineNo">333</span> // create and add them to Q<a
name="line.333"></a>
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increased from " + this.maxCount + " to " + newMaxCount);<a name="line.334"></a>
+<span class="sourceLineNo">335</span> this.maxCount = newMaxCount;<a
name="line.335"></a>
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decreased. We may need to clear off some of the pooled chunks now<a
name="line.337"></a>
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are serving already, do not pool those when we get them back<a
name="line.338"></a>
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decreased from " + this.maxCount + " to " + newMaxCount);<a name="line.339"></a>
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name="line.340"></a>
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> newMaxCount) {<a name="line.341"></a>
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(this.reclaimedChunks.size() > newMaxCount) {<a name="line.343"></a>
+<span class="sourceLineNo">344</span>
this.reclaimedChunks.poll();<a name="line.344"></a>
+<span class="sourceLineNo">345</span> }<a name="line.345"></a>
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+<span class="sourceLineNo">350</span> }<a name="line.350"></a>
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name="line.370"></a>
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name="line.375"></a>
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+<span class="sourceLineNo">356</span> }<a name="line.356"></a>
+<span class="sourceLineNo">357</span><a name="line.357"></a>
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initializePool(long globalMemStoreSize, float poolSizePercentage,<a
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+<span class="sourceLineNo">359</span> float initialCountPercentage) {<a
name="line.359"></a>
+<span class="sourceLineNo">360</span> if (poolSizePercentage <= 0) {<a
name="line.360"></a>
+<span class="sourceLineNo">361</span> LOG.info("PoolSizePercentage is
less than 0. So not using pool");<a name="line.361"></a>
+<span class="sourceLineNo">362</span> return null;<a name="line.362"></a>
+<span class="sourceLineNo">363</span> }<a name="line.363"></a>
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+<span class="sourceLineNo">367</span> if (poolSizePercentage > 1.0) {<a
name="line.367"></a>
+<span class="sourceLineNo">368</span> throw new
IllegalArgumentException(<a name="line.368"></a>
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MemStoreLAB.CHUNK_POOL_MAXSIZE_KEY + " must be between 0.0 and 1.0");<a
name="line.369"></a>
+<span class="sourceLineNo">370</span> }<a name="line.370"></a>
+<span class="sourceLineNo">371</span> int maxCount = (int)
(globalMemStoreSize * poolSizePercentage / getChunkSize());<a
name="line.371"></a>
+<span class="sourceLineNo">372</span> if (initialCountPercentage > 1.0
|| initialCountPercentage < 0) {<a name="line.372"></a>
+<span class="sourceLineNo">373</span> throw new
IllegalArgumentException(<a name="line.373"></a>
+<span class="sourceLineNo">374</span>
MemStoreLAB.CHUNK_POOL_INITIALSIZE_KEY + " must be between 0.0 and 1.0");<a
name="line.374"></a>
+<span class="sourceLineNo">375</span> }<a name="line.375"></a>
+<span class="sourceLineNo">376</span> int initialCount = (int)
(initialCountPercentage * maxCount);<a name="line.376"></a>
+<span class="sourceLineNo">377</span> LOG.info("Allocating
MemStoreChunkPool with chunk size "<a name="line.377"></a>
+<span class="sourceLineNo">378</span> +
StringUtils.byteDesc(getChunkSize()) + ", max count " + maxCount<a
name="line.378"></a>
+<span class="sourceLineNo">379</span> + ", initial count " +
initialCount);<a name="line.379"></a>
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MemStoreChunkPool(maxCount, initialCount, poolSizePercentage);<a
name="line.380"></a>
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+<span class="sourceLineNo">382</span><a name="line.382"></a>
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IllegalArgumentException(<a name="line.405"></a>
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MemStoreLAB.CHUNK_POOL_MAXSIZE_KEY + " must be between 0.0 and 1.0");<a
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(globalMemStoreSize * poolSizePercentage / getChunkSize());<a
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|| initialCountPercentage < 0) {<a name="line.409"></a>
-<span class="sourceLineNo">410</span> throw new
IllegalArgumentException(<a name="line.410"></a>
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MemStoreLAB.CHUNK_POOL_INITIALSIZE_KEY + " must be between 0.0 and 1.0");<a
name="line.411"></a>
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(initialCountPercentage * maxCount);<a name="line.413"></a>
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MemStoreChunkPool with chunk size "<a name="line.414"></a>
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StringUtils.byteDesc(getChunkSize()) + ", max count " + maxCount<a
name="line.415"></a>
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initialCount);<a name="line.416"></a>
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MemStoreChunkPool(maxCount, initialCount, poolSizePercentage);<a
name="line.417"></a>
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+<span class="sourceLineNo">390</span><a name="line.390"></a>
+<span class="sourceLineNo">391</span> @VisibleForTesting<a
name="line.391"></a>
+<span class="sourceLineNo">392</span> int getPoolSize() {<a
name="line.392"></a>
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name="line.393"></a>
+<span class="sourceLineNo">394</span> return
pool.reclaimedChunks.size();<a name="line.394"></a>
+<span class="sourceLineNo">395</span> }<a name="line.395"></a>
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+<span class="sourceLineNo">398</span><a name="line.398"></a>
+<span class="sourceLineNo">399</span> @VisibleForTesting<a
name="line.399"></a>
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+<span class="sourceLineNo">402</span> // chunks that are from pool will
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+<span class="sourceLineNo">403</span> Chunk c = getChunk(chunkId);<a
name="line.403"></a>
+<span class="sourceLineNo">404</span> if (c==null) {<a
name="line.404"></a>
+<span class="sourceLineNo">405</span> return false;<a
name="line.405"></a>
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+<span class="sourceLineNo">407</span> return
pool.reclaimedChunks.contains(c);<a name="line.407"></a>
+<span class="sourceLineNo">408</span> }<a name="line.408"></a>
+<span class="sourceLineNo">409</span><a name="line.409"></a>
+<span class="sourceLineNo">410</span> return false;<a name="line.410"></a>
+<span class="sourceLineNo">411</span> }<a name="line.411"></a>
+<span class="sourceLineNo">412</span><a name="line.412"></a>
+<span class="sourceLineNo">413</span> /*<a name="line.413"></a>
+<span class="sourceLineNo">414</span> * Only used in testing<a
name="line.414"></a>
+<span class="sourceLineNo">415</span> */<a name="line.415"></a>
+<span class="sourceLineNo">416</span> @VisibleForTesting<a
name="line.416"></a>
+<span class="sourceLineNo">417</span> void clearChunksInPool() {<a
name="line.417"></a>
+<span class="sourceLineNo">418</span> if (pool != null) {<a
name="line.418"></a>
+<span class="sourceLineNo">419</span> pool.reclaimedChunks.clear();<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><a name="line.422"></a>
+<span class="sourceLineNo">423</span> synchronized void
putbackChunks(Set<Integer> chunks) {<a name="line.423"></a>
+<span class="sourceLineNo">424</span> // if there is no pool just try to
clear the chunkIdMap in case there is something<a name="line.424"></a>
+<span class="sourceLineNo">425</span> if ( pool == null ) {<a
name="line.425"></a>
+<span class="sourceLineNo">426</span> this.removeChunks(chunks);<a
name="line.426"></a>
+<span class="sourceLineNo">427</span> return;<a name="line.427"></a>
+<span class="sourceLineNo">428</span> }<a name="line.428"></a>
+<span class="sourceLineNo">429</span><a name="line.429"></a>
+<span class="sourceLineNo">430</span> // if there is pool, go over all
chunk IDs that came back, the chunks may be from pool or not<a
name="line.430"></a>
+<span class="sourceLineNo">431</span> for (int chunkID : chunks) {<a
name="line.431"></a>
+<span class="sourceLineNo">432</span> // translate chunk ID to chunk, if
chunk initially wasn't in pool<a name="line.432"></a>
+<span class="sourceLineNo">433</span> // this translation will (most
likely) return null<a name="line.433"></a>
+<span class="sourceLineNo">434</span> Chunk chunk =
ChunkCreator.this.getChunk(chunkID);<a name="line.434"></a>
+<span class="sourceLineNo">435</span> if (chunk != null) {<a
name="line.435"></a>
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+<span class="sourceLineNo">437</span> }<a name="line.437"></a>
+<span class="sourceLineNo">438</span> // if chunk is null, it was never
covered by the chunkIdMap (and so wasn't in pool also),<a name="line.438"></a>
+<span class="sourceLineNo">439</span> // so we have nothing to do on its
release<a name="line.439"></a>
+<span class="sourceLineNo">440</span> }<a name="line.440"></a>
+<span class="sourceLineNo">441</span> return;<a name="line.441"></a>
+<span class="sourceLineNo">442</span> }<a name="line.442"></a>
+<span class="sourceLineNo">443</span><a name="line.443"></a>
+<span class="sourceLineNo">444</span>}<a name="line.444"></a>