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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15554) StoreFile$Writer.appendGeneralBloomFilter generates extra KV
Date Fri, 05 Aug 2016 13:04:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15409417#comment-15409417
] 

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

bq.Ok that can be fixed as part of another Jira. At least in Bloom area we can make sure we
dont keep ref to prev cells.
This lastCell ref we may need or something of that sort because in case of where we have dupliacate
row or duplicate cols how to know if we have a new key? we need to compare the current cell
with the prev cell. Lets see what can be done there. 

> 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: ramkrishna.s.vasudevan
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15554.patch, HBASE-15554_3.patch, HBASE-15554_4.patch, HBASE-15554_6.patch,
HBASE-15554_7.patch
>
>
> Accounts for 10% memory allocation in compaction thread when BloomFilterType is ROWCOL.



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