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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TEPHRA-235) Flushes and compactions can remove committed data
Date Thu, 22 Jun 2017 18:33:00 GMT

    [ https://issues.apache.org/jira/browse/TEPHRA-235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16059830#comment-16059830

ASF GitHub Bot commented on TEPHRA-235:

Github user asfgit closed the pull request at:


> Flushes and compactions can remove committed data
> -------------------------------------------------
>                 Key: TEPHRA-235
>                 URL: https://issues.apache.org/jira/browse/TEPHRA-235
>             Project: Tephra
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 0.11.0-incubating, 0.12.0-incubating
>            Reporter: Poorna Chandra
>            Assignee: Poorna Chandra
>            Priority: Blocker
>             Fix For: 0.13.0-incubating
> Transaction co-processor uses the transaction snapshot generated by the Transaction Manager
to remove deleted and invalid cells during HBase compactions and flushes. The co-processor
expects the invalid list in the transaction snapshot to be sorted. However, the invalid list
is not sorted during a snapshot creation in the Transaction Manager. This leads to invalid
transactions becoming visible during compactions, and thus committed transactions with write
pointers smaller than the invalid transaction will get removed.
> We missed this piece when fixing TEPHRA-223.

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