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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15554) StoreFile$Writer.appendGeneralBloomFilter generates extra KV
Date Tue, 29 Mar 2016 07:15:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15215590#comment-15215590
] 

ramkrishna.s.vasudevan commented on HBASE-15554:
------------------------------------------------

Are you working on this [~vrodionov]?  I have a patch (internally) for this that also works
with offheap cells.  Anyway as far as we write the key part with row and qualifier the copy
we do may be needed for the RowCol unless the Hash algos are changed to work with cells. But
that needs to be more careful because once we make it to work with Cells then the assumption
of byte[] and index based retrieval in the hash algo wont work. 

> StoreFile$Writer.appendGeneralBloomFilter generates extra KV
> ------------------------------------------------------------
>
>                 Key: HBASE-15554
>                 URL: https://issues.apache.org/jira/browse/HBASE-15554
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Performance
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>             Fix For: 2.0.0
>
>
> Accounts for 10% memory allocation when BloomFilterType is ROWCOL.



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