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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17757) Unify blocksize after encoding to decrease memory fragment
Date Mon, 01 May 2017 10:54:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15990725#comment-15990725

Anoop Sam John commented on HBASE-17757:

bq.Seems like patch generated by 'git format-patch' can easily fail to run Hudson. So I resubmit
a new patch.
Really?   Seems as per the latest patch, the HadoopQA report is fine.. Can u attach the same
patch with git format way so that I can commit it to branch-1

> 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
>         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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