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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9949) Fix the race condition between Compaction and StoreScanner.init
Date Sat, 23 Nov 2013 18:40:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13830737#comment-13830737
] 

Andrew Purtell commented on HBASE-9949:
---------------------------------------

​Shall we revert the HBASE-9949 commit to trunk until we have consensus on the testing part?
Seems both Jon and I, and probably Stack also given his comment on dev@, have an issue with
the testing bits that were committed. (Sorry I didn't come around to this issue before it
went it.)​ 

> Fix the race condition between Compaction and StoreScanner.init
> ---------------------------------------------------------------
>
>                 Key: HBASE-9949
>                 URL: https://issues.apache.org/jira/browse/HBASE-9949
>             Project: HBase
>          Issue Type: Bug
>          Components: Scanners
>    Affects Versions: 0.89-fb
>            Reporter: Manukranth Kolloju
>            Assignee: Manukranth Kolloju
>            Priority: Minor
>             Fix For: 0.89-fb, 0.98.0
>
>         Attachments: 9949-0.96.addendum, 9949-trunk-v1.txt, 9949-trunk-v2.txt, 9949-trunk-v3.txt,
9949.addendum
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> The StoreScanner constructor has multiple stages and there can be a race betwwen an ongoing
compaction and the StoreScanner constructor where we might get the list of scanners before
a compaction and seek on those scanners after the compaction.



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