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From "Robert Muir (JIRA)" <>
Subject [jira] [Commented] (LUCENE-5612) LockStressTest fails always with NativeFSLockFactory
Date Thu, 17 Apr 2014 20:49:18 GMT


Robert Muir commented on LUCENE-5612:

Cool: maybe we can run the python script just with jython or something? it doesnt need to
be fast.

My problem with ant/java here: is getting server and client to terminate without hiding bugs.
We dont really want to interrupt() the server sleeping in accept() and so on, or rely on the
clients to send a shutdown message or whatever. These things could cause loops or hide actual

> LockStressTest fails always with NativeFSLockFactory
> ----------------------------------------------------
>                 Key: LUCENE-5612
>                 URL:
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Robert Muir
>            Priority: Blocker
>             Fix For: 4.8
>         Attachments: LUCENE-5612-instant-crush.patch, LUCENE-5612-instant-crush.patch,
LUCENE-5612-tester.patch, LUCENE-5612-tester.patch, LUCENE-5612.patch
> I was looking at this, because i wanted to remove the static map inside NativeFSLockFactory
(no particular reason: it just smells bad, we require java7, and you get overlappingexception
as of java6 so its unnecessary).
> Before changing any code, i wanted to run lockstresstest first, just to ensure it works:
but it fails always. Simple works fine always.
> Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: lock
was double acquired at$CheckedLock.verify(

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