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Posted to java-user@lucene.apache.org by Phil Whelan <ph...@gmail.com> on 2009/08/02 05:10:18 UTC
Re: java.io.IOException when trying to list terms in index
(IndexReader)
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, <oh...@cox.net> wrote:
> reader = IndexReader.open(args[0]);
> Term term = new Term("path", "");
> termsEnumerator = reader.terms(term);
Cheers,
Phil
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Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by oh...@cox.net.
Erick,
It's working now (I removed the finally, and put the close() elsewhere). Thanks for the explanation.
Jim
---- Erick Erickson <er...@gmail.com> wrote:
> I've seen Eclipse get into weird states, but I don't think that's your
> problem.
>
> You open the IndexReader and set up a TermEnum on it. Then, no matter
> what you close the underlying IndexReader in the finally block. Then later
> you use the TermEnum *even though the underlying reader has been closed*.
> You want something like
> try {
> open reader
> set up TermEnum
> enumerate terms
> close termEnum
> } catch () {
> }
> finally {
> close reader
> }
>
> Getting an IO exception isn't at all strange in this situation, and exactly
> when
> you throw the exception is indeterminate.
>
> See below.
> public class ReadIndex {
>
> public static void main(String[] args) {
> IndexReader reader = null;
> TermEnum termsEnumerator = null;
> Term currentTerm = null;
>
> try {
> reader = IndexReader.open(args[0]);
> Term term = new Term("path", "");
> termsEnumerator = reader.terms(term);
> } catch (IOException e) {
> System.out.println("** ERROR **: Exception when
> opened IndexReader: [" + e + "]");
> } finally {
> **********
> Why close the reader here? You need it later I think.
> **********
> try { reader.close(); } catch (IOException e) { /*
> suck it up */ }
> }
>
> System.out.println("Index in directory :[" + args[0] + "] was
> opened successfully!");
>
> try {
> System.out.println("About to drop into while()...");
> **************
> This relies on the underlying reader that has been closed???
> **************
>
> while (termsEnumerator.next()) {
> System.out.println("About to get
> terms.Enumerator.term()...");
> currentTerm = termsEnumerator.term();
> System.out.println("Term = [" +
> currentTerm.text() + "]");
> }
> termsEnumerator.close();
> } catch (Exception e) {
> System.out.println("** ERROR **: Exception while
> stepping through index: [" + e + "]");
> }
> } // end main()
>
> } // end CLASS ReadIndex
>
> On Sun, Aug 2, 2009 at 3:15 PM, <oh...@cox.net> wrote:
>
> > 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 <se...@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 <ph...@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, <oh...@cox.net> wrote:
> > > >> > > > > reader = IndexReader.open(args[0]);
> > > >> > > > > Term term = new Term("path", "");
> > > >> > > > > termsEnumerator = reader.terms(term);
> > > >> > > >
> > > >> > > > Cheers,
> > > >> > > > Phil
> > > >> > > >
> > > >> > > >
> > > >> ---------------------------------------------------------------------
> > > >> > > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > >> > > > For additional commands, e-mail:
> > java-user-help@lucene.apache.org
> > > >> > > >
> > > >> > >
> > > >> > >
> > > >> > >
> > ---------------------------------------------------------------------
> > > >> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > >> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > > >> > >
> > > >> >
> > > >> >
> > > >> >
> > ---------------------------------------------------------------------
> > > >> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > >> > For additional commands, e-mail: java-user-help@lucene.apache.org
> > > >> >
> > > >>
> > > >>
> > > >> ---------------------------------------------------------------------
> > > >> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > >> For additional commands, e-mail: java-user-help@lucene.apache.org
> > > >>
> > > >
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > > >
> > > >
> > > >
> > >
> > > --
> > > 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.
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
> >
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Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by Erick Erickson <er...@gmail.com>.
I've seen Eclipse get into weird states, but I don't think that's your
problem.
You open the IndexReader and set up a TermEnum on it. Then, no matter
what you close the underlying IndexReader in the finally block. Then later
you use the TermEnum *even though the underlying reader has been closed*.
You want something like
try {
open reader
set up TermEnum
enumerate terms
close termEnum
} catch () {
}
finally {
close reader
}
Getting an IO exception isn't at all strange in this situation, and exactly
when
you throw the exception is indeterminate.
See below.
public class ReadIndex {
public static void main(String[] args) {
IndexReader reader = null;
TermEnum termsEnumerator = null;
Term currentTerm = null;
try {
reader = IndexReader.open(args[0]);
Term term = new Term("path", "");
termsEnumerator = reader.terms(term);
} catch (IOException e) {
System.out.println("** ERROR **: Exception when
opened IndexReader: [" + e + "]");
} finally {
**********
Why close the reader here? You need it later I think.
**********
try { reader.close(); } catch (IOException e) { /*
suck it up */ }
}
System.out.println("Index in directory :[" + args[0] + "] was
opened successfully!");
try {
System.out.println("About to drop into while()...");
**************
This relies on the underlying reader that has been closed???
**************
while (termsEnumerator.next()) {
System.out.println("About to get
terms.Enumerator.term()...");
currentTerm = termsEnumerator.term();
System.out.println("Term = [" +
currentTerm.text() + "]");
}
termsEnumerator.close();
} catch (Exception e) {
System.out.println("** ERROR **: Exception while
stepping through index: [" + e + "]");
}
} // end main()
} // end CLASS ReadIndex
On Sun, Aug 2, 2009 at 3:15 PM, <oh...@cox.net> wrote:
> 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 <se...@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 <ph...@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, <oh...@cox.net> wrote:
> > >> > > > > reader = IndexReader.open(args[0]);
> > >> > > > > Term term = new Term("path", "");
> > >> > > > > termsEnumerator = reader.terms(term);
> > >> > > >
> > >> > > > Cheers,
> > >> > > > Phil
> > >> > > >
> > >> > > >
> > >> ---------------------------------------------------------------------
> > >> > > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > >> > > > For additional commands, e-mail:
> java-user-help@lucene.apache.org
> > >> > > >
> > >> > >
> > >> > >
> > >> > >
> ---------------------------------------------------------------------
> > >> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > >> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > >> > >
> > >> >
> > >> >
> > >> >
> ---------------------------------------------------------------------
> > >> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > >> > For additional commands, e-mail: java-user-help@lucene.apache.org
> > >> >
> > >>
> > >>
> > >> ---------------------------------------------------------------------
> > >> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > >> For additional commands, e-mail: java-user-help@lucene.apache.org
> > >>
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > >
> > >
> > >
> >
> > --
> > 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.
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>
Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by oh...@cox.net.
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 <se...@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 <ph...@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, <oh...@cox.net> wrote:
> >> > > > > reader = IndexReader.open(args[0]);
> >> > > > > Term term = new Term("path", "");
> >> > > > > termsEnumerator = reader.terms(term);
> >> > > >
> >> > > > Cheers,
> >> > > > Phil
> >> > > >
> >> > > >
> >> ---------------------------------------------------------------------
> >> > > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >> > > > For additional commands, e-mail: java-user-help@lucene.apache.org
> >> > > >
> >> > >
> >> > >
> >> > > ---------------------------------------------------------------------
> >> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> >> > >
> >> >
> >> >
> >> > ---------------------------------------------------------------------
> >> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >> >
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >> For additional commands, e-mail: java-user-help@lucene.apache.org
> >>
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
> >
> >
>
> --
> 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.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org
Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by se3g2011 <se...@gmail.com>.
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 <ph...@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, <oh...@cox.net> wrote:
>> > > > > reader = IndexReader.open(args[0]);
>> > > > > Term term = new Term("path", "");
>> > > > > termsEnumerator = reader.terms(term);
>> > > >
>> > > > Cheers,
>> > > > Phil
>> > > >
>> > > >
>> ---------------------------------------------------------------------
>> > > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>> > > > For additional commands, e-mail: java-user-help@lucene.apache.org
>> > > >
>> > >
>> > >
>> > > ---------------------------------------------------------------------
>> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>> > > For additional commands, e-mail: java-user-help@lucene.apache.org
>> > >
>> >
>> >
>> > ---------------------------------------------------------------------
>> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>> > For additional commands, e-mail: java-user-help@lucene.apache.org
>> >
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
>> For additional commands, e-mail: java-user-help@lucene.apache.org
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
>
>
--
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Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by oh...@cox.net.
Hi,
I don't know what happened, but all of a sudden, it started working :(...
Jim
---- ohaya@cox.net 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 <ph...@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, <oh...@cox.net> wrote:
> > > > > > reader = IndexReader.open(args[0]);
> > > > > > Term term = new Term("path", "");
> > > > > > termsEnumerator = reader.terms(term);
> > > > >
> > > > > Cheers,
> > > > > Phil
> > > > >
> > > > > ---------------------------------------------------------------------
> > > > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > > > >
> > > >
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > > >
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
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Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by oh...@cox.net.
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 <ph...@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, <oh...@cox.net> wrote:
> > > > > reader = IndexReader.open(args[0]);
> > > > > Term term = new Term("path", "");
> > > > > termsEnumerator = reader.terms(term);
> > > >
> > > > Cheers,
> > > > Phil
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > > >
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
---------------------------------------------------------------------
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Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by oh...@cox.net.
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 <ph...@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, <oh...@cox.net> wrote:
> > > > reader = IndexReader.open(args[0]);
> > > > Term term = new Term("path", "");
> > > > termsEnumerator = reader.terms(term);
> > >
> > > Cheers,
> > > Phil
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > > For additional commands, e-mail: java-user-help@lucene.apache.org
> > >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
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Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by oh...@cox.net.
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 <ph...@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, <oh...@cox.net> wrote:
> > > reader = IndexReader.open(args[0]);
> > > Term term = new Term("path", "");
> > > termsEnumerator = reader.terms(term);
> >
> > Cheers,
> > Phil
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
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Re: java.io.IOException when trying to list terms in index
(IndexReader)
Posted by oh...@cox.net.
Phil,
Yes, that exception is not very helpful :)!!
I'll try your suggestions and post back.
Thanks,
Jim
---- Phil Whelan <ph...@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, <oh...@cox.net> wrote:
> > reader = IndexReader.open(args[0]);
> > Term term = new Term("path", "");
> > termsEnumerator = reader.terms(term);
>
> Cheers,
> Phil
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>
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