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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-5108) Intermittent failure in AutomaticIndexStatisticsTest.testShutdownWhileScanningThenDelete on Windows
Date Tue, 15 Mar 2011 22:46:29 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13007247#comment-13007247
] 

Knut Anders Hatlen commented on DERBY-5108:
-------------------------------------------

> if we go a reasonable amount of time without seeing it in nightly's or reported by anyone

Didn't you say you still saw the problem in one out of five runs with the fix?

> 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: 10.8.0.0
>         Environment: Windows platforms.
>            Reporter: Kristian Waagan
>            Priority: Blocker
>         Attachments: 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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