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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5108) Intermittent failure in AutomaticIndexStatisticsTest.testShutdownWhileScanningThenDelete on Windows
Date Tue, 07 Jun 2011 13:17:58 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13045411#comment-13045411
] 

Dag H. Wanvik commented on DERBY-5108:
--------------------------------------

I was just wondering about the code ca line 339-342 in TransactionResourceImpl.. could that
bypass it,? Note that
this is part of the old interrupt machinery to close down threads when shutting down the engine.
But presumably by then you have already shut down the thread. Depends what happens first,
the shutdown of the statistics  thread or the call to notifyAllActiveThreads, but I see in
DataBaseContextImpl#cleanupOnError you have inserted the logic *before* the call to notifyAllActiveThreads
so you should be golden.



> Intermittent failure in AutomaticIndexStatisticsTest.testShutdownWhileScanningThenDelete
on Windows
> ---------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-5108
>                 URL: https://issues.apache.org/jira/browse/DERBY-5108
>             Project: Derby
>          Issue Type: Bug
>          Components: Test
>    Affects Versions: 10.8.1.2
>         Environment: Windows platforms.
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>            Priority: Blocker
>         Attachments: derby-5108-1a-early_istats_shutdown.diff, derby-5108-2.diff, derby-5108-2a-early_istats_shutdown_broad.diff,
javacore.20110309.125807.4048.0001.txt, waitOnShutdown.diff
>
>
> The test AutomaticIndexStatisticsTest.testShutdownWhileScanningThenDelete fails intermittently
on Windows platforms because the test is unable to delete a database directory.
> Even after several retries and sleeps (the formula should be (attempt -1) * 2000, resulting
in a total sleep time of 12 seconds), the conglomerate system\singleUse\copyShutdown\seg0\c481.dat
cannot be deleted.
> For instance from http://dbtg.foundry.sun.com/derby/test/Daily/jvm1.6/testing/testlog/w2003/1078855-suitesAll_diff.txt
:
> (truncated paths)
> testShutdownWhileScanningThenDelete <assertDirectoryDeleted> attempt 1 left 3 files/dirs
behind: 0=system\singleUse\copyShutdown\seg0\c481.dat 1=system\singleUse\copyShutdown\seg0
2=system\singleUse\copyShutdown
> <assertDirectoryDeleted> attempt 2 left 3 files/dirs behind: 0=system\singleUse\copyShutdown\seg0\c481.dat
1=system\singleUse\copyShutdown\seg0 2=system\singleUse\copyShutdown
> <assertDirectoryDeleted> attempt 3 left 3 files/dirs behind: 0=system\singleUse\copyShutdown\seg0\c481.dat
1=system\singleUse\copyShutdown\seg0 2=system\singleUse\copyShutdown
> <assertDirectoryDeleted> attempt 4 left 3 files/dirs behind: 0=system\singleUse\copyShutdown\seg0\c481.dat
1=system\singleUse\copyShutdown\seg0 2=system\singleUse\copyShutdown
> used 205814 ms F.
> Maybe the database isn't shut down, or some specific timing of events causes a file to
be reopened when it shouldn't have been (i.e. after the database shutdown has been initiated).

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