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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14921) Memory optimizations
Date Tue, 19 Apr 2016 23:00:28 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15248855#comment-15248855
] 

stack commented on HBASE-14921:
-------------------------------

Man, it'd be cool if could use a long for Cell reference!

bq. But we can translate ConcurrentSkipListMap to CellArrayMap, which already reduces some
metadata overhead.

But if MSLAB has offheap chunks, then this will bring our data onheap?

How you thinking of making CellChunkMaps out of MSLAB+CSLM? (No hurry, just interested).

Thanks for the explanation above.




> 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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