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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12282) Ensure Cells and its implementations work with Buffers also
Date Wed, 29 Oct 2014 09:43:33 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14188181#comment-14188181
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ramkrishna.s.vasudevan commented on HBASE-12282:
------------------------------------------------

Another thing is if that is the case then all the new APIs that we add in ByteBufferUtils
could just handle only the DBB cases (including the Unsafe cases for DBB). Not the cases of
normal BB because in this case we could still work with byte[] inside the BB.

> Ensure Cells and its implementations work with Buffers also
> -----------------------------------------------------------
>
>                 Key: HBASE-12282
>                 URL: https://issues.apache.org/jira/browse/HBASE-12282
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver, Scanners
>    Affects Versions: 0.99.1
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0, 0.99.2
>
>         Attachments: HBASE-12224_2.patch
>
>
> This issue can be used to brainstorm and then do the necessary changes for the offheap
work.  All impl of cells deal with byte[] but when we change the Hfileblocks/Readers to work
purely with Buffers then the byte[] usage would mean that always the data is copied to the
onheap.  Cell may need some interface change to implement this.



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