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Posted to dev@omid.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2019/04/01 03:51:00 UTC

[jira] [Commented] (OMID-139) Rollback is extremely slow

    [ https://issues.apache.org/jira/browse/OMID-139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16806366#comment-16806366 ] 

Lars Hofhansl commented on OMID-139:
------------------------------------

Cool!
I wasn't sure whether you needed the familyDeleteCache. (That seems to be a per-row cache...?)

1000 is fine. Although it's always best to leave it to HBase and do it size based. If you just write with autocommit on with a final flush then HBase will pick the "best" flush size (at least you configure it once for HBase)


> Rollback is extremely slow
> --------------------------
>
>                 Key: OMID-139
>                 URL: https://issues.apache.org/jira/browse/OMID-139
>             Project: Apache Omid
>          Issue Type: Bug
>    Affects Versions: 1.0.1
>            Reporter: Lars Hofhansl
>            Priority: Major
>         Attachments: 138_139.patch
>
>
> Almost 3 minutes for about 100k rows.
> Haven't debugged it, yet, but it is possible that this is not batching the cleanup and doing individual RPCs?



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