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Posted to dev@phoenix.apache.org by "Sergey Soldatov (JIRA)" <ji...@apache.org> on 2016/08/04 22:01:20 UTC

[jira] [Commented] (PHOENIX-3149) Local index got corrupted if intermediate compaction happen during the split.

    [ https://issues.apache.org/jira/browse/PHOENIX-3149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15408565#comment-15408565 ] 

Sergey Soldatov commented on PHOENIX-3149:
------------------------------------------

[~rajeshbabu] Please review.  

> Local index got corrupted if intermediate compaction happen during the split.
> -----------------------------------------------------------------------------
>
>                 Key: PHOENIX-3149
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3149
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.8.0
>            Reporter: Sergey Soldatov
>            Assignee: Sergey Soldatov
>         Attachments: PHOENIX-3149.patch
>
>
> The scenario is quite simple: 
> If we trigger split after index creation when we have a lot of HFiles not yet compacted, the compaction may happen for part of those files and the scan type will be COMPACT_RETAIN_DELETES, but not COMPACT_DROP_DELETES as we expect in preCompactScannerOpen. In this case the regular scanner will be used during compaction and we get incorrectly data in the local index. Discussed it with [~enis] offline and it seems that the check for COMPACT_DROP_DELETES is not necessary and can/should be deleted.



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