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https://issues.apache.org/jira/browse/HBASE-19506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16371545#comment-16371545
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Hudson commented on HBASE-19506:
--------------------------------
FAILURE: Integrated in Jenkins build HBase-Trunk_matrix #4623 (See
[https://builds.apache.org/job/HBase-Trunk_matrix/4623/])
HBASE-19506: The CellChunkMap index chunks are usually small, so in (anastas:
rev 92d04d57516391376d34aaca6307e5906ffa4ae8)
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreLAB.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/Chunk.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ImmutableMemStoreLAB.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompactingMemStore.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreLABImpl.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/ChunkCreator.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreLAB.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreChunkPool.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMemstoreLABWithoutPool.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/CellChunkMap.java
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/CellChunkImmutableSegment.java
> Support variable sized chunks from ChunkCreator
> -----------------------------------------------
>
> Key: HBASE-19506
> URL: https://issues.apache.org/jira/browse/HBASE-19506
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anastasia Braginsky
> Priority: Major
> Attachments: HBASE-19506-V01.patch, HBASE-19506-V02.patch,
> HBASE-19506-V03.patch, HBASE-19506-V04.patch, HBASE-19506-V05.patch,
> HBASE-19506-V06.patch, HBASE-19506-V07.patch, HBASE-19506-V08.patch,
> HBASE-19506-V09.patch
>
>
> When CellChunkMap is created it allocates a special index chunk (or chunks)
> where array of cell-representations is stored. When the number of
> cell-representations is small, it is preferable to allocate a chunk smaller
> than a default value which is 2MB.
> On the other hand, those "non-standard size" chunks can not be used in pool.
> On-demand allocations in off-heap are costly. So this JIRA is about to
> investigate the trade of between memory usage and the final performance.
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