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https://issues.apache.org/jira/browse/LUCENE-5612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13975521#comment-13975521
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Robert Muir commented on LUCENE-5612:
-------------------------------------
Uwe, ill let you take care of the note, and Ill just take care of the code, ok?
If it were up to me, we would not support NFS at all, just throw exception and
shut down the JVM completely if you try to use it. Its probably the number one
cause of index corruption.
> LockStressTest fails always with NativeFSLockFactory
> ----------------------------------------------------
>
> Key: LUCENE-5612
> URL: https://issues.apache.org/jira/browse/LUCENE-5612
> 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-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch,
> LUCENE-5612-more-sophisticated-crusher.patch, LUCENE-5612-tester.patch,
> LUCENE-5612-tester.patch, LUCENE-5612.patch, LUCENE-5612.patch,
> LUCENE-5612.patch, LUCENE-5612.patch, LUCENE-5612.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
> org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:67)
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