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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8849) CellCodec should write and read the memstoreTS/mvccVersion
Date Wed, 03 Jul 2013 06:30:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13698670#comment-13698670
] 

stack commented on HBASE-8849:
------------------------------

Just say not to Writables... even WritableUtils.

The vint done in WritableUtils is bad.  See Benoit on this: https://github.com/OpenTSDB/asynchbase/blob/master/src/HBaseRpc.java#L849

Just do a long for now I'd say [~ram_krish]  We can come back later and make a fancier encoding....
should probably do some prefix encoding in here anyways -- why not... Can d later. 
                
> 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
>
>
> 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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