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From "Jason Brown (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6503) sstables from stalled repair sessions become live after a reboot and can resurrect deleted data
Date Thu, 30 Jan 2014 18:02:15 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6503?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13886836#comment-13886836
] 

Jason Brown commented on CASSANDRA-6503:
----------------------------------------

Committed the 1.2 patch to 1.2, have a few questions for [~yukim] that I'll here in a minute
(after coffee)

> sstables from stalled repair sessions become live after a reboot and can resurrect deleted
data
> -----------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6503
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6503
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jeremiah Jordan
>            Assignee: Jason Brown
>            Priority: Minor
>             Fix For: 1.2.14, 2.0.5
>
>         Attachments: 6503_2.0-v2.diff, 6503_2.0-v3.diff, 6503_c1.2-v1.patch
>
>
> The sstables streamed in during a repair session don't become active until the session
finishes.  If something causes the repair session to hang for some reason, those sstables
will hang around until the next reboot, and become active then.  If you don't reboot for 3
months, this can cause data to resurrect, as GC grace has expired, so tombstones for the data
in those sstables may have already been collected.



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