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From "Allan Yang (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HBASE-17757) Unify blocksize after encoding to decrease memory fragment
Date Fri, 28 Apr 2017 01:16:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987978#comment-15987978
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Allan Yang edited comment on HBASE-17757 at 4/28/17 1:15 AM:
-------------------------------------------------------------

Ping [~anoopsamjohn], is v4 patch what your need? I will prepare a branch-1 patch later


was (Author: allan163):
Ping [~anoopsamjohn], is v4 patch what your need?

> 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, HBASE-17757v3.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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