Re: [jira] Commented: (LUCENE-2361) OutOfMemoryException while Indexing

[Lars Grote <la...@gmail.com>]

Hi,
are you loading a lot of Classes? I've seen this error "PermGem" when having
a huge classpath.
As far as I know GC is not cleaning this part of Memory.

You can tweak the size like this: -XX:PermSize=64M -XX:MaxPermSize=128M

Not sure if this helps in anyway.
Regards Lars


On Sat, Apr 3, 2010 at 10:31 AM, Michael McCandless (JIRA)
<ji...@apache.org>wrote:

>
>    [
> https://issues.apache.org/jira/browse/LUCENE-2361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853110#action_12853110]
>
> Michael McCandless commented on LUCENE-2361:
> --------------------------------------------
>
> Can you share some details on how you're using Lucene?  What's IndexWriters
> ramBufferSizeMB?  How much heap are you giving the JVM?  Are you calling
> commit (or closing/opening a new IndexWriter) frequently or rarely?
>
> Can you enable IndexWriter's infoStream and post the output?
>
> > 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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