[
https://issues.apache.org/jira/browse/LUCENE-3874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Muir updated LUCENE-3874:
--------------------------------
Attachment: LUCENE-3874_test.patch
Simple test that overflows posinc.
Output is:
{noformat}
junit-sequential:
[junit] Testsuite: org.apache.lucene.index.TestIndexWriterExceptions
[junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 0.239 sec
[junit]
[junit] ------------- Standard Output ---------------
[junit] CheckIndex failed
[junit] Segments file=segments_1 numSegments=1 version=4.0
format=FORMAT_4_0 [Lucene 4.0]
[junit] 1 of 1: name=_0 docCount=1
[junit] codec=SimpleText
[junit] compound=false
[junit] hasProx=true
[junit] numFiles=4
[junit] size (MB)=0
[junit] diagnostics = {os.version=3.0.0-14-generic, os=Linux,
lucene.version=4.0-SNAPSHOT, source=flush, os.arch=amd64,
java.version=1.6.0_24, java.vendor=Sun Microsystems Inc.}
[junit] has deletions [delGen=-1]
[junit] test: open reader.........OK
[junit] test: fields..............OK [1 fields]
[junit] test: field norms.........OK [1 fields]
[junit] test: terms, freq, prox...ERROR: java.lang.RuntimeException:
term [66 6f 6f]: doc 0: pos -2 is out of bounds
[junit] java.lang.RuntimeException: term [66 6f 6f]: doc 0: pos -2 is out
of bounds
[junit] at
org.apache.lucene.index.CheckIndex.testPostings(CheckIndex.java:860)
...
{noformat}
> bogus positions create a corrumpt index
> ---------------------------------------
>
> Key: LUCENE-3874
> URL: https://issues.apache.org/jira/browse/LUCENE-3874
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Robert Muir
> Attachments: LUCENE-3874_test.patch
>
>
> Its pretty common that positionIncrement can overflow, this happens really
> easily
> if people write analyzers that don't clearAttributes().
> It used to be the case that if this happened (and perhaps still is in 3.x, i
> didnt check),
> that IW would throw an exception.
> But i couldnt find the code checking this, I wrote a test and it makes a
> corrumpt index...
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