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Date: Wed, 20 Jul 2011 12:43:58 +0000 (UTC)
From: "Knut Anders Hatlen (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (DERBY-5336) Repeated database creation causes
 OutOfMemoryError
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     [ https://issues.apache.org/jira/browse/DERBY-5336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Knut Anders Hatlen updated DERBY-5336:
--------------------------------------

           Component/s:     (was: Miscellaneous)
                        Services
      Issue & fix info: [Repro attached, Workaround attached]  (was: [Repro attached])
    Bug behavior facts: [Crash, Regression]  (was: [Crash])

I'm able to reproduce the OOME on trunk. It looks like the objects belonging to the stopped database instances are still referenced from the index statistics update daemon and cannot be freed.

Disabling automatic update of index statistics seems to work around the problem. If I run the repro with -Dderby.storage.indexStats.auto=false, I don't see the OOME.

I'm marking this bug as a regression, since the OOME is not seen with 10.7.1.1.

> Repeated database creation causes OutOfMemoryError
> --------------------------------------------------
>
>                 Key: DERBY-5336
>                 URL: https://issues.apache.org/jira/browse/DERBY-5336
>             Project: Derby
>          Issue Type: Bug
>          Components: Services
>    Affects Versions: 10.8.1.2
>         Environment: Windows 7 64-bit, jdk1.6.0_26
>            Reporter: Aja Walker
>         Attachments: DerbyOutOfMemoryErrorRepro.java
>
>
> Repeatedly creating, querying, updating, and shutting down a database or databases eventually causes OutOfMemoryError.
> Java source reproducing the problem is attached.

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