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From "Allan Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17757) Unify blocksize after encoding to decrease memory fragment
Date Thu, 27 Apr 2017 07:34:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15986149#comment-15986149
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Allan Yang commented on HBASE-17757:
------------------------------------

ping [~apurtell], [~anoopsamjohn], [~saint.ack@gmail.com], any other comment before committing´╝č

> Unify blocksize after encoding to decrease memory fragment 
> -----------------------------------------------------------
>
>                 Key: HBASE-17757
>                 URL: https://issues.apache.org/jira/browse/HBASE-17757
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Allan Yang
>            Assignee: Allan Yang
>         Attachments: HBASE-17757.patch, HBASE-17757v2.patch
>
>
> Usually, we store encoded block(uncompressed) in blockcache/bucketCache. Though we have
set the blocksize, after encoding, blocksize is varied. Varied blocksize will cause memory
fragment problem, which will result in more FGC finally.In order to relief the memory fragment,
This issue adjusts the encoded block to a unified size.



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