lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Peter Keegan <peterlkee...@gmail.com>
Subject Re: IO exception during merge/optimize
Date Thu, 29 Oct 2009 19:46:46 GMT
A handful of the source documents did contain the U+FFFF character. The
patch from *LUCENE-2016 <https://issues.apache.org/jira/browse/LUCENE-2016>
*fixed the problem.
Thanks Mike!

Peter

On Wed, Oct 28, 2009 at 1:29 PM, Michael McCandless <
lucene@mikemccandless.com> wrote:

> Hmm, only a few affected terms, and all this particular
> "literals:cfid196$" term, with optional suffixes.  Really strange.
>
> One things that's odd is the exact term "literals:cfid196$" is printed
> twice, which should never happen (every unique term should be stored
> only once, in the terms dict).
>
> And, otherwise, CheckIndex got through the index just fine.
>
> Try searching a TermQuery with these affected terms and see if it
> succeeds?  If so, maybe trying making an index with one or two of
> them, alone, and see if that index shows the problem?
>
> OK I'm attaching more mods.  Can you re-run your CheckIndex?  It will
> produce an enormous amount of output, but if you can excise the few
> lines around when that warning comes out & post back that'd be great.
>
> Mike
>
> On Wed, Oct 28, 2009 at 12:23 PM, Peter Keegan <peterlkeegan@gmail.com>
> wrote:
> > Just to be safe, I ran with the official jar file from one of the mirrors
> > and reproduced the problem.
> > The debug session is not showing any characters = '\uffff' (checking this
> in
> > Tokenizer).
> > The output from the modified CheckIndex follows. There are only a few
> terms
> > with the inconsistency. They are all legitimate terms from the app's
> > context. With this info, I might be able to isolate the source documents.
> > What should I be looking for when they are indexed?
> >
> > CheckInput output:
> >
> > Opening index @ D:\mnsavs\lresumes1\lresumes1.luc\lresumes1.search.main.4
> >
> > Segments file=segments_2 numSegments=3 version=FORMAT_DIAGNOSTICS [Lucene
> > 2.9]
> >  1 of 3: name=_0 docCount=413585
> >    compound=false
> >    hasProx=true
> >    numFiles=8
> >    size (MB)=1,148.817
> >    diagnostics = {os.version=5.2, os=Windows 2003, lucene.version=2.9.0
> > 817268P - 2009-09-21 10:25:09, source=flush, os.arch=amd64,
> > java.version=1.6.0_16, java.vendor=Sun Microsystems Inc.}
> >    docStoreOffset=0
> >    docStoreSegment=_0
> >    docStoreIsCompoundFile=false
> >    no deletions
> >    test: open reader.........OK
> >    test: fields..............OK [33 fields]
> >    test: field norms.........OK [33 fields]
> >    test: terms, freq, prox...OK [7704753 terms; 180326717 terms/docs
> pairs;
> > 340244234 tokens]
> >    test: stored fields.......OK [1240755 total field count; avg 3 fields
> > per doc]
> >    test: term vectors........OK [0 total vector count; avg 0 term/freq
> > vector fields per doc]
> >
> >  2 of 3: name=_1 docCount=359068
> >    compound=false
> >    hasProx=true
> >    numFiles=8
> >    size (MB)=1,125.161
> >    diagnostics = {os.version=5.2, os=Windows 2003, lucene.version=2.9.0
> > 817268P - 2009-09-21 10:25:09, source=flush, os.arch=amd64,
> > java.version=1.6.0_16, java.vendor=Sun Microsystems Inc.}
> >    docStoreOffset=413585
> >    docStoreSegment=_0
> >    docStoreIsCompoundFile=false
> >    no deletions
> >    test: open reader.........OK
> >    test: fields..............OK [33 fields]
> >    test: field norms.........OK [33 fields]
> >    test: terms, freq, prox...WARNING: term  literals:cfid196$ docFreq=43
> !=
> > num docs seen 4 + num docs deleted 0
> > WARNING: term  literals:cfid196$ docFreq=1 != num docs seen 4 + num docs
> > deleted 0
> > WARNING: term  literals:cfid196$ docFreq=1 != num docs seen 4 + num docs
> > deleted 0
> > WARNING: term  literals:cfid196$commandant docFreq=1 != num docs seen 9 +
> > num docs deleted 0
> > WARNING: term  literals:cfid196$on docFreq=3178 != num docs seen 1 + num
> > docs deleted 0
> > OK [7137621 terms; 179101847 terms/docs pairs; 346076058 tokens]
> >    test: stored fields.......OK [1077204 total field count; avg 3 fields
> > per doc]
> >    test: term vectors........OK [0 total vector count; avg 0 term/freq
> > vector fields per doc]
> >
> >  3 of 3: name=_2 docCount=304849
> >    compound=false
> >    hasProx=true
> >    numFiles=8
> >    size (MB)=962.004
> >    diagnostics = {os.version=5.2, os=Windows 2003, lucene.version=2.9.0
> > 817268P - 2009-09-21 10:25:09, source=flush, os.arch=amd64,
> > java.version=1.6.0_16, java.vendor=Sun Microsystems Inc.}
> >    docStoreOffset=772653
> >    docStoreSegment=_0
> >    docStoreIsCompoundFile=false
> >    no deletions
> >    test: open reader.........OK
> >    test: fields..............OK [33 fields]
> >    test: field norms.........OK [33 fields]
> >    test: terms, freq, prox...WARNING: term  contents:? docFreq=1 != num
> > docs seen 246 + num docs deleted 0
> > WARNING: term  literals:cfid196$ docFreq=45 != num docs seen 4 + num docs
> > deleted 0
> > WARNING: term  literals:cfid196$ docFreq=1 != num docs seen 4 + num docs
> > deleted 0
> > WARNING: term  literals:cfid196$cashier docFreq=1 != num docs seen 37 +
> num
> > docs deleted 0
> > WARNING: term  literals:cfid196$interrogation docFreq=181 != num docs
> seen 1
> > + num docs deleted 0
> > WARNING: term  literals:cfid196$leader docFreq=1 != num docs seen 353 +
> num
> > docs deleted 0
> > WARNING: term  literals:cfid196$microsoft docFreq=3114 != num docs seen 1
> +
> > num docs deleted 0
> > WARNING: term  literals:cfid196$nt docFreq=200 != num docs seen 1 + num
> docs
> > deleted 0
> > OK [6497769 terms; 145296880 terms/docs pairs; 293458734 tokens]
> >    test: stored fields.......OK [914547 total field count; avg 3 fields
> per
> > doc]
> >    test: term vectors........OK [0 total vector count; avg 0 term/freq
> > vector fields per doc]
> >
> > No problems were detected with this index.
> >
> > Peter
> >
> >
> > On Wed, Oct 28, 2009 at 11:29 AM, Michael McCandless <
> > lucene@mikemccandless.com> wrote:
> >
> >> On Wed, Oct 28, 2009 at 10:58 AM, Peter Keegan <peterlkeegan@gmail.com>
> >> wrote:
> >> > The only change I made to the source code was the patch for
> >> PayloadNearQuery
> >> > (LUCENE-1986).
> >>
> >> That patch certainly shouldn't lead to this.
> >>
> >> > It's possible that our content contains U+FFFF. I will run in debugger
> >> and
> >> > see.
> >>
> >> OK may as well check just so we cover all possibilities.
> >>
> >> > The data is 'sensitive', so I may not be able to provide a bad
> segment,
> >> > unfortunately.
> >>
> >> OK, maybe we can modify your CheckIndex instead.  Let's start with
> >> this, which prints a warning whenever the docFreq differs but
> >> otherwise continues (vs throwing RuntimeException).  I'm curious how
> >> many terms show this, and whether the TermEnum keeps working after
> >> this term that has different docFreq:
> >>
> >> Index: src/java/org/apache/lucene/index/CheckIndex.java
> >> ===================================================================
> >> --- src/java/org/apache/lucene/index/CheckIndex.java    (revision
> 829889)
> >> +++ src/java/org/apache/lucene/index/CheckIndex.java    (working copy)
> >> @@ -672,8 +672,8 @@
> >>         }
> >>
> >>         if (freq0 + delCount != docFreq) {
> >> -          throw new RuntimeException("term " + term + " docFreq=" +
> >> -                                     docFreq + " != num docs seen " +
> >> freq0 + " + num docs deleted " + delCount);
> >> +          System.out.println("WARNING: term  " + term + " docFreq=" +
> >> +                             docFreq + " != num docs seen " + freq0 +
> >> " + num docs deleted " + delCount);
> >>         }
> >>       }
> >>
> >> Mike
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> >> For additional commands, e-mail: java-user-help@lucene.apache.org
> >>
> >>
> >
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message