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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8849) CellCodec should write and read the memstoreTS/mvccVersion
Date Tue, 09 Jul 2013 07:37:49 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13703017#comment-13703017
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Anoop Sam John commented on HBASE-8849:
---------------------------------------

Handling the mvcc, I would say we need handle that fully in the Codec Encoder/Decoder. Let
the encoder decide what to do with the mvcc. Might not be good to pass it as a boolean arg
or so.
                
> CellCodec should write and read the memstoreTS/mvccVersion
> ----------------------------------------------------------
>
>                 Key: HBASE-8849
>                 URL: https://issues.apache.org/jira/browse/HBASE-8849
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.95.1
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>              Labels: keyvalue
>             Fix For: 0.98.0
>
>         Attachments: HBASE-8849_1.patch, HBASE-8849_2.patch
>
>
> This JIRA is wrt discussion over in HBASE-8496.
> Cell interface and the corresponding CellCodec provides a new way of serializing the
Keyvalues.  
> Cell interface supports getMvccVersion() and the javadoc says it could be > 0 if it
exists or 0 otherwise.
> But we don't tend to write/read the memstoreTS/mvccVersion in the Cell codec.

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