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From "ryan rawson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2456) deleteChangedReaderObserver spitting warnings after HBASE-2248
Date Mon, 19 Apr 2010 14:45:53 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12858512#action_12858512
] 

ryan rawson commented on HBASE-2456:
------------------------------------


   [[ Old comment, sent by email on Thu, 15 Apr 2010 21:42:31 -0700 ]]

I've seen those before, the issue is closing a scanner more than once.
there should be a guard, but these are in fact harmless.

there is more concurrency going on with less row locks :-)





> deleteChangedReaderObserver spitting warnings after HBASE-2248
> --------------------------------------------------------------
>
>                 Key: HBASE-2456
>                 URL: https://issues.apache.org/jira/browse/HBASE-2456
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.20.4
>            Reporter: Todd Lipcon
>            Assignee: ryan rawson
>             Fix For: 0.20.4, 0.20.5, 0.21.0
>
>         Attachments: 2456.patch
>
>
> I'm seeing very occasional "Not in set" warnings on region servers under heavy concurrent
read/write test after HBASE-2248. Here's a log:
> http://pastebin.com/1Vm9C7Uf

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