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Posted to dev@omid.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2018/07/09 22:33:00 UTC

[jira] [Commented] (OMID-103) DeleteFamily marker still visible after rollback fails

    [ https://issues.apache.org/jira/browse/OMID-103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16537717#comment-16537717 ] 

James Taylor commented on OMID-103:
-----------------------------------

FYI, [~ohads] - the specific scenario in this case is:
 * HBase write of family delete marker occurs successfully
 * Commit was successful
 * Write of shadow cells failed
 * Query/scan over rows doesn't properly filter out all deleted cells for the family delete marker

> DeleteFamily marker still visible after rollback fails
> ------------------------------------------------------
>
>                 Key: OMID-103
>                 URL: https://issues.apache.org/jira/browse/OMID-103
>             Project: Apache Omid
>          Issue Type: Bug
>            Reporter: James Taylor
>            Priority: Major
>
> If a DeleteFamily marker is written to HBase and the subsequent abort of the transaction fails, the delete marker is still visible and mistakenly continues to take effect. For a repro, see TransactionIT.testFailureToRollbackAfterDelete() which passes for Tephra but fails for Omid.



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