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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17757) Unify blocksize after encoding to decrease memory fragment
Date Mon, 10 Apr 2017 18:48:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15963331#comment-15963331
] 

Andrew Purtell commented on HBASE-17757:
----------------------------------------

+1
Let's commit.

> 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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