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Posted to dev@openjpa.apache.org by "Michael Dick (JIRA)" <ji...@apache.org> on 2010/11/30 21:20:11 UTC
[jira] Resolved: (OPENJPA-1898) TestQueryMultiThreaded fails with
OOME "unable to create new native thread"
[ https://issues.apache.org/jira/browse/OPENJPA-1898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Dick resolved OPENJPA-1898.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
2.1.0
Assignee: Michael Dick
Thanks for the patch Mark, I've committed it to trunk and 2.1.x.
> TestQueryMultiThreaded fails with OOME "unable to create new native thread"
> ---------------------------------------------------------------------------
>
> Key: OPENJPA-1898
> URL: https://issues.apache.org/jira/browse/OPENJPA-1898
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.0.1
> Reporter: Mark Struberg
> Assignee: Michael Dick
> Fix For: 2.1.0, 2.2.0
>
> Attachments: OPENJPA-1898.patch
>
>
> here comes the stacktrace:
> <error message="unable to create new native thread" type="java.lang.OutOfMemoryError">java.lang.OutOfMemoryError: unable to create new native thread
> at java.lang.Thread.start0(Native Method)
> at java.lang.Thread.start(Thread.java:597)
> at org.apache.openjpa.slice.TestQueryMultiThreaded.testHeavyLoad(TestQueryMultiThreaded.java:236)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at junit.framework.TestCase.runTest(TestCase.java:154)
> reducing the thread count to 800 should help to prevent this problem. This might be caused to the 1024 processes ulimit on most linux installations.
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