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From "Varun Sharma (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4583) Integrate RWCC with Append and Increment operations
Date Tue, 13 Nov 2012 02:09:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13495856#comment-13495856
] 

Varun Sharma commented on HBASE-4583:
-------------------------------------

Oh okay - I thought from your previous comment that you agreed on a solution for 0.94 - maybe
you only meant that we fix the Race condition b/w put and append/increment like we do it for
checkAndPut and not really do the MVCC part ? Or did I misunderstand ?

Varun
                
> Integrate RWCC with Append and Increment operations
> ---------------------------------------------------
>
>                 Key: HBASE-4583
>                 URL: https://issues.apache.org/jira/browse/HBASE-4583
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.96.0
>
>         Attachments: 4583-mixed.txt, 4583-mixed-v2.txt, 4583-mixed-v4.txt, 4583-trunk-less-radical.txt,
4583-trunk-less-radical-v2.txt, 4583-trunk-less-radical-v3.txt, 4583-trunk-less-radical-v4.txt,
4583-trunk-less-radical-v5.txt, 4583-trunk-less-radical-v6.txt, 4583-trunk-radical.txt, 4583-trunk-radical_v2.txt,
4583-trunk-v3.txt, 4583.txt, 4583-v2.txt, 4583-v3.txt, 4583-v4.txt, 4584-0.94-v1.txt
>
>
> Currently Increment and Append operations do not work with RWCC and hence a client could
see the results of multiple such operation mixed in the same Get/Scan.
> The semantics might be a bit more interesting here as upsert adds and removes to and
from the memstore.

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