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https://issues.apache.org/jira/browse/LUCENE-3339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13134870#comment-13134870
 ] 

Olve Sæther Hansen commented on LUCENE-3339:
--------------------------------------------

I am testing Lucene for my project now, and it seems that I run into this (or 
something like this) in 3.3.0. I try to index three different sources 
concurrently and all three processes get stuck here.

The indexation happens as cause of a scheduled event, and at startup time I try 
to debug and since my breakpoints synchronize the events, they continue in 
perfect sync om my four cores. 
I do not see that issue when I startup with my breakpoints disabled.

The stacktrace for my three processes are exactly the same. Is there a 
workaround for this issue or do I have to wait for 3.5 (that is if it is the 
same problem)?
{code}
minokWorkerExecutor-1@5444, prio=5, in group 'main', status: 'waiting'
  java.lang.Thread.State: WAITING
          at java.lang.Object.wait(Object.java:-1)
          at java.lang.Object.wait(Object.java:485)
          at 
org.apache.lucene.index.DocumentsWriter.waitForWaitQueue(DocumentsWriter.java:1057)
          at 
org.apache.lucene.index.DocumentsWriter.updateDocuments(DocumentsWriter.java:875)
          at 
org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:2163)
          at 
org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:2121)
          at 
org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:2105)
{code}
                
> TestNRTThreads hangs in nightly 3.x builds
> ------------------------------------------
>
>                 Key: LUCENE-3339
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3339
>             Project: Lucene - Java
>          Issue Type: Bug
>            Reporter: Robert Muir
>            Assignee: Michael McCandless
>             Fix For: 3.5
>
>         Attachments: LUCENE-3339.patch
>
>
> Maybe we have a problem, maybe its a bug in the test.
> But its strange that lately the 3.x nightlies have been hanging here.

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