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From "Anastasia Braginsky (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14921) Memory optimizations
Date Thu, 14 Apr 2016 12:59:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15241093#comment-15241093

Anastasia Braginsky commented on HBASE-14921:

And here we go!!!

Please take a look on the attached patch of CellFlatMaps connected to recent version of CompactingMemStore.
The CellSet can now be implemented also as CellArrayMap or CellChunkMap, thus influencing
the ImmutableSegment holding that CellSet.
For more explanations please also take a look on the attached "Introduction to New Flat and
Compact MemStore" document. There are still some completions and improvements to be done,
but please take a look to get the idea. Enjoy!

> Memory optimizations
> --------------------
>                 Key: HBASE-14921
>                 URL: https://issues.apache.org/jira/browse/HBASE-14921
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 2.0.0
>            Reporter: Eshcar Hillel
>            Assignee: Anastasia Braginsky
>         Attachments: CellBlocksSegmentInMemStore.pdf, CellBlocksSegmentinthecontextofMemStore(1).pdf,
HBASE-14921-V01.patch, HBASE-14921-V02.patch, HBASE-14921-V03.patch, IntroductiontoNewFlatandCompactMemStore.pdf
> Memory optimizations including compressed format representation and offheap allocations

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