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https://issues.apache.org/jira/browse/HBASE-4583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13143458#comment-13143458
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stack commented on HBASE-4583:
------------------------------
Nice work Lars.
bq. Increment/Append/ICV currently work because all changes are visible to all
scanners, because only then can we safely remove the duplicates.
This is 'cheating', right?
bq. Since we do not have that information and readers also do not take out any
locks, I don't see any way of making this work.
Downside to leaving the duplicates in place would make for an explosion in
versions?
> 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: 0.94.0
>
> Attachments: 4583-v2.txt, 4583-v3.txt, 4583-v4.txt, 4583.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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