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From eks dev <eks...@yahoo.co.uk>
Subject Re: OOM with 2.9
Date Sun, 12 Jul 2009 11:53:46 GMT

Thanks Uwe, 
yes it is on 32 bit in extremely tight memory situation. I just was curious what the reason
is (on bigger machine it works). Lucene core requires more real memory? Can you please a bit
elaborate, can I estimate it somehow? I do not remember seeing any changes that would cause
core to use more memory (we do not sort, no norms overall... this failed just on opening IndexReader)...

cheers, eks




----- Original Message ----
> From: Uwe Schindler <uwe@thetaphi.de>
> To: java-user@lucene.apache.org
> Sent: Sunday, 12 July, 2009 13:39:23
> Subject: RE: OOM with 2.9
> 
> Is it a 32 or 64 bit JVM? If 32 bit, this error can happen, if the new
> Lucene Core needs more real memory and so the MMaped address space is
> already used. MMapDirectory should only be used with 64 bit machines.
> 
> -----
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: uwe@thetaphi.de
> 
> > -----Original Message-----
> > From: eks dev [mailto:eksdev@yahoo.co.uk]
> > Sent: Sunday, July 12, 2009 1:24 PM
> > To: java-user@lucene.apache.org
> > Subject: Re: OOM with 2.9
> > 
> > 
> > Stack trace
> > 
> > java.io.IOException: Map failed
> >  at sun.nio.ch.FileChannelImpl.map(Unknown Source)
> >  at org.apache.lucene.store.MMapDirectory$MMapIndexInput.(Unknown
> > Source)
> >  at org.apache.lucene.store.MMapDirectory$MMapIndexInput.(Unknown
> > Source)
> >  at org.apache.lucene.store.MMapDirectory.openInput(Unknown Source)
> >  at org.apache.lucene.index.SegmentReader$CoreReaders.(Unknown
> > Source)
> >  at org.apache.lucene.index.SegmentReader.get(Unknown Source)
> >  at org.apache.lucene.index.SegmentReader.get(Unknown Source)
> >  at org.apache.lucene.index.DirectoryReader.(Unknown Source)
> >  at org.apache.lucene.index.ReadOnlyDirectoryReader.(Unknown Source)
> >  at org.apache.lucene.index.DirectoryReader$1.doBody(Unknown Source)
> >  at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(Unknown
> > Source)
> >  at org.apache.lucene.index.DirectoryReader.open(Unknown Source)
> >  at org.apache.lucene.index.IndexReader.open(Unknown Source)
> >  at org.apache.lucene.index.IndexReader.open(Unknown Source)
> >  at
> > com.qspi.su.search.IndexReaderFactory.getNewIndexReaderInstance(IndexReade
> > rFactory.java:70)
> >  at com.qspi.su.search.SearchStrategy.(SearchStrategy.java:147)
> >  at com.qspi.su.search.Searcher.(Searcher.java:170)
> >  at com.qspi.su.search.Searchers.(Searchers.java:21)
> >  at com.qspi.su.ipc.SUProtocolImpl.(SUProtocolImpl.java:76)
> >  at com.qspi.su.ipc.SUServer.run(SUServer.java:84)
> >  at com.qspi.su.ipc.SUServer.main(SUServer.java:204)
> > Caused by: java.lang.OutOfMemoryError: Map failed
> >  at sun.nio.ch.FileChannelImpl.map0(Native Method)
> > 
> > 
> > 
> > 
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> 
> 
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