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https://issues.apache.org/jira/browse/LUCENE-2361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853811#action_12853811
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Michael McCandless commented on LUCENE-2361:
--------------------------------------------
Hmm are you sure you're setting infoStream on all writers you create? The
above output just shows an IW that was opened, not used for anything (no
deletions, additions), and then closed.
And eg the OOME in the opening here during a merge should result in some
details being posted to the infoStream.
> OutOfMemoryException while Indexing
> -----------------------------------
>
> Key: LUCENE-2361
> URL: https://issues.apache.org/jira/browse/LUCENE-2361
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 2.9.1
> Environment: Windows
> Reporter: Shivender Devarakonda
>
> Hi,
> We use lucene 2.9.1 version.
> We see the following OutOfMemory error in our environment, I think This is
> happening at a significant high load. Have you observed this anytime? Please
> let me know your thoughts on this.
> org.apache.lucene.index.MergePolicy$MergeException:
> java.lang.OutOfMemoryError: PermGen space
> at
> org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:351)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:315)
> Caused by: java.lang.OutOfMemoryError: PermGen space
> at java.lang.String.$$YJP$$intern(Native Method)
> at java.lang.String.intern(Unknown Source)
> at
> org.apache.lucene.util.SimpleStringInterner.intern(SimpleStringInterner.java:74)
> at org.apache.lucene.util.StringHelper.intern(StringHelper.java:36)
> at org.apache.lucene.index.FieldInfos.read(FieldInfos.java:356)
> at org.apache.lucene.index.FieldInfos.<init>(FieldInfos.java:71)
> at
> org.apache.lucene.index.SegmentReader$CoreReaders.<init>(SegmentReader.java:116)
> at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:638)
> at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:608)
> at
> org.apache.lucene.index.IndexWriter$ReaderPool.get(IndexWriter.java:686)
> at
> org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4979)
> at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:4614)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:235)
> at
> org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:291)
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