TestQueryMultiThreaded fails with OOME "unable to create new native thread"
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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
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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