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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-17757) Unify blocksize after encoding to decrease memory fragment
Date Tue, 02 May 2017 04:41:04 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Anoop Sam John updated HBASE-17757:
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.4.0
           Status: Resolved  (was: Patch Available)

Pushed to branch-1 also.. Thanks for the patch Allan.

> 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
>             Fix For: 2.0.0, 1.4.0
>
>         Attachments: HBASE-17757-branch-1.v5.patch, HBASE-17757.patch, HBASE-17757v2.patch,
HBASE-17757v3.patch, HBASE-17757v4-branch-1.patch, HBASE-17757v4.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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