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Posted to issues@hbase.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2012/11/10 00:49:14 UTC

[jira] [Comment Edited] (HBASE-4583) Integrate RWCC with Append and Increment operations

    [ https://issues.apache.org/jira/browse/HBASE-4583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13494439#comment-13494439 ] 

Lars Hofhansl edited comment on HBASE-4583 at 11/9/12 11:49 PM:
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@Varun: I mostly agree.
Increment/Append won't play nicely with concurrent Puts/Deletes anyway (without this patch that is), whereas checkAndXXX does.

[~saint.ack@gmail.com] These tests finish pretty quickly on my laptop (about 2m), and < 15s on my (beefy) desktop. Should be OK.

OK... Going to commit later today. TestHFileOutputFormat is unrelated - I'll double check.
This is nice correctness improvement to HBase.
                
      was (Author: lhofhansl):
    @Varun: I mostly agree.
Increment/Append won't play nicely with concurrent Puts/Deletes anyway, whereas checkAndXXX does.

[~saint.ack@gmail.com] These tests finish pretty quickly on my laptop (about 2m), and < 15s on my (beefy) desktop. Should be OK.

OK... Going to commit later today. TestHFileOutputFormat is unrelated - I'll double check.
This is nice correctness improvement to HBase.
                  
> 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
>
>
> 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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