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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12202) Support DirectByteBuffer usage in HFileBlock
Date Thu, 09 Oct 2014 05:14:33 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14164767#comment-14164767
] 

Lars Hofhansl commented on HBASE-12202:
---------------------------------------

Careful with DBBs. JVM will one for each size allocated and not reuse (unless same size),
and in addition they not cleaned until we do a full GC (at least that used to be the case).
So we need to make sure we allocate DBB of same size (maybe from a pool). There might be other
issues too.

> Support DirectByteBuffer usage in HFileBlock
> --------------------------------------------
>
>                 Key: HBASE-12202
>                 URL: https://issues.apache.org/jira/browse/HBASE-12202
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver, Scanners
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 2.0.0, 0.99.1
>
>




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