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From "Shad Storhaug (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENENET-617) Deadlock caused by NativeFSLockFactory
Date Thu, 15 Aug 2019 05:33:00 GMT
Shad Storhaug created LUCENENET-617:
---------------------------------------

             Summary: Deadlock caused by NativeFSLockFactory
                 Key: LUCENENET-617
                 URL: https://issues.apache.org/jira/browse/LUCENENET-617
             Project: Lucene.Net
          Issue Type: Bug
          Components: Lucene.Net Core
    Affects Versions: Lucene.Net 4.8.0
            Reporter: Shad Storhaug
            Assignee: Shad Storhaug
             Fix For: Lucene.Net 4.8.0


The NativeFSLockFactory is causing the {{Lucene.Net.Replicator.IndexAndTaxonomyReplicationClientTest::TestConsistencyOnExceptions()}}
test to deadlock. 

It is also seemingly causing random failures to:

* {{Lucene.Net.Store.TestMockDirectoryWrapper::TestDiskFull()}}

I have confirmed over 15 test runs that reverting the changes from the following commits eliminates
the issue without producing any side effects:

* [7f6c78570d4b7e5e4bbb8708acfe3a397822baca|https://github.com/apache/lucenenet/commit/7f6c78570d4b7e5e4bbb8708acfe3a397822baca]
* [c3e7ae30de1f23ec4198c817073096e302fc7a1b|https://github.com/apache/lucenenet/commit/c3e7ae30de1f23ec4198c817073096e302fc7a1b]
* [7f2b76a0a81c3fbe7dd5e329cbf1d6504dba9e2c|https://github.com/apache/lucenenet/commit/7f2b76a0a81c3fbe7dd5e329cbf1d6504dba9e2c]

These include commits were introduced in [pull request #222](https://github.com/apache/lucenenet/pull/222)
and patches applied to it.

It is unknown what the impact to consumers of 4.8.0-beta00006 is, but this issue appears to
be very rare judging by the tests.



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