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From Shai Erera <ser...@gmail.com>
Subject Re: TestIndexWriter failure
Date Sun, 02 Aug 2009 10:49:42 GMT
Isn't this expected? I mean, if you close IndexWriter, but there are merges
run in the background, aren't they expected to hit an
AlreadyClosedException?

Perhaps we should fix the test to check whether CMS hit this exception and
if so clear it (as AFAIU, it's expected), and leave any other exceptions?
This will require some change in CMS (to expose that information, through
e.g. getUnhandledExceptions).

Or add to CMS.Thread.run() a catch for AlreadyClosedException and ignore it,
as we do for MergeAbortedException?

Or, stop doing any merges if CMS.close() has been called?

On Sun, Aug 2, 2009 at 12:49 AM, Michael Busch <buschmic@gmail.com> wrote:

> While running 'ant test' I just got this failure (on Mac OS 10.5.7). Even
> worse, the next time I ran it the test passed, so this might be hard to
> reproduce.
> I haven't tried yet to find out what caused this.
>
>    [junit] Exception in thread "Lucene Merge Thread #1"
> org.apache.lucene.index.MergePolicy$MergeException:
> org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:351)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:315)
>    [junit] Caused by: org.apache.lucene.store.AlreadyClosedException: this
> IndexWriter is closed
>    [junit]     at
> org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:791)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.getDirectory(IndexWriter.java:2303)
>    [junit]     at
> org.apache.lucene.index.SegmentMerger.<init>(SegmentMerger.java:88)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4942)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4598)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:235)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:291)
>    [junit] Exception in thread "Lucene Merge Thread #2"
> org.apache.lucene.index.MergePolicy$MergeException:
> org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:351)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:315)
>    [junit] Caused by: org.apache.lucene.store.AlreadyClosedException: this
> IndexWriter is closed
>    [junit]     at
> org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:791)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.getDirectory(IndexWriter.java:2303)
>    [junit]     at
> org.apache.lucene.index.SegmentMerger.<init>(SegmentMerger.java:88)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4942)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4598)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:235)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:291)
>    [junit] Exception in thread "Lucene Merge Thread #3"
> org.apache.lucene.index.MergePolicy$MergeException:
> org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:351)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:315)
>    [junit] Caused by: org.apache.lucene.store.AlreadyClosedException: this
> IndexWriter is closed
>    [junit]     at
> org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:791)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.getDirectory(IndexWriter.java:2303)
>    [junit]     at
> org.apache.lucene.index.SegmentMerger.<init>(SegmentMerger.java:88)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4942)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4598)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:235)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:291)
>    [junit] Exception in thread "Lucene Merge Thread #4"
> org.apache.lucene.index.MergePolicy$MergeException:
> org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:351)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:315)
>    [junit] Caused by: org.apache.lucene.store.AlreadyClosedException: this
> IndexWriter is closed
>    [junit]     at
> org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:791)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.getDirectory(IndexWriter.java:2303)
>    [junit]     at
> org.apache.lucene.index.SegmentMerger.<init>(SegmentMerger.java:88)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4942)
>    [junit]     at
> org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4598)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:235)
>    [junit]     at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:291)
>    [junit] ------------- ---------------- ---------------
>    [junit] Testcase:
> testNoWaitClose(org.apache.lucene.index.TestIndexWriter):    FAILED
>    [junit] ConcurrentMergeScheduler hit unhandled exceptions
>    [junit] junit.framework.AssertionFailedError: ConcurrentMergeScheduler
> hit unhandled exceptions
>    [junit]     at
> org.apache.lucene.util.LuceneTestCase.tearDown(LuceneTestCase.java:54)
>    [junit] Test org.apache.lucene.index.TestIndexWriter FAILED
>
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