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From <oh...@cox.net>
Subject Re: java.io.IOException when trying to list terms in index (IndexReader)
Date Sun, 02 Aug 2009 19:15:37 GMT
Hi,

I thought that, in the code that I posted, there was a close() in the finally?

Or, are you saying that when an IndexReader is opened, that that somehow persists in the system,
even past my Java app terminating?

FYI, I'm doing this testing on Windows, under Eclipse...

Jim



---- se3g2011 <se3g2011@gmail.com> wrote: 
> 
> hi,as you the error messages you listed below,pls put the 'reader.close()'
> block to the bottom of method.
> i think,if you invoke it first,the infrastructure stream is closed ,so
> exceptions is encountered.
> 
> 
> ohaya wrote:
> > 
> > Hi,
> > 
> > I changed the beginning of the try to:
> > 
> > 		try {
> > 			System.out.println("About to call .next()...");
> > 			boolean foo = termsEnumerator.next();
> > 			System.out.println("Finished calling first .next()");
> > 			System.out.println("About to drop into while()...");
> > .
> > .
> > .
> > 
> > and here's what I got when I ran the app:
> > 
> > Index in directory :[C:\lucene-devel\lucene-devel\index] was opened
> > successfully!
> > About to call .next()...
> > ** ERROR **: Exception while stepping through index: [java.io.IOException:
> > The handle is invalid]
> > java.io.IOException: The handle is invalid
> > 	at java.io.RandomAccessFile.seek(Native Method)
> > 	at
> > org.apache.lucene.store.FSDirectory$FSIndexInput.readInternal(FSDirectory.java:591)
> > 	at
> > org.apache.lucene.store.BufferedIndexInput.readBytes(BufferedIndexInput.java:136)
> > 	at
> > org.apache.lucene.index.CompoundFileReader$CSIndexInput.readInternal(CompoundFileReader.java:247)
> > 	at
> > org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:157)
> > 	at
> > org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:38)
> > 	at org.apache.lucene.store.IndexInput.readVInt(IndexInput.java:78)
> > 	at org.apache.lucene.index.TermBuffer.read(TermBuffer.java:64)
> > 	at org.apache.lucene.index.SegmentTermEnum.next(SegmentTermEnum.java:127)
> > 	at ReadIndex.main(ReadIndex.java:29)
> > 
> > Jim
> > 
> > ---- ohaya@cox.net wrote: 
> >> Hi,
> >> 
> >> BTW, the next() method is an abstract method in the Javadocs.  Does that
> >> mean that I'm suppose to have my own implementation?
> >> 
> >> Jim
> >> 
> >> 
> >> ---- ohaya@cox.net wrote: 
> >> > Phil,
> >> > 
> >> > I posted in haste.  Actually, from the output that I posted, doesn't it
> >> it look like the .next() itself is throwing the exception?
> >> > 
> >> > That is what has been puzzling me.  It looks like it got through the
> >> open() and terms() with no problem, then it blew up when calling the
> >> next()?
> >> > 
> >> > Jim
> >> > 
> >> > 
> >> > ---- ohaya@cox.net wrote: 
> >> > > Phil,
> >> > > 
> >> > > Yes, that exception is not very helpful :)!!
> >> > > 
> >> > > I'll try your suggestions and post back.
> >> > > 
> >> > > Thanks,
> >> > > Jim
> >> > > 
> >> > > 
> >> > > ---- Phil Whelan <phil123@gmail.com> wrote: 
> >> > > > Hi Jim,
> >> > > > 
> >> > > > I cannot see anything obvious, but both open() and terms() throw
> >> > > > IOException's. You could try putting these in separate try..catch
> >> > > > blocks to see which one it's coming from. Or using
> >> e.printStackTrace()
> >> > > > in the catch block will give more info to help you debug what's
> >> > > > happening.
> >> > > > 
> >> > > > On Sat, Aug 1, 2009 at 7:09 PM, <ohaya@cox.net> wrote:
> >> > > > >                        reader = IndexReader.open(args[0]);
> >> > > > >                        Term term = new Term("path",
"");
> >> > > > >                        termsEnumerator = reader.terms(term);
> >> > > > 
> >> > > > Cheers,
> >> > > > Phil
> >> > > > 
> >> > > >
> >> ---------------------------------------------------------------------
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> >> > > > 
> >> > > 
> >> > > 
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> >> > > 
> >> > 
> >> > 
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> >> > 
> >> 
> >> 
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> >> 
> > 
> > 
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> > 
> > 
> > 
> 
> -- 
> View this message in context: http://www.nabble.com/java.io.IOException-when-trying-to-list-terms-in-index-%28IndexReader%29-tp24774351p24775753.html
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
> 
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