[jira] Commented: (LUCENE-140) docs out of order

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[jira] Commented: (LUCENE-140) docs out of order

JIRA jira@apache.org

    [ https://issues.apache.org/jira/browse/LUCENE-140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12463202 ]

Jed Wesley-Smith commented on LUCENE-140:
-----------------------------------------

Hi Michael,

This is awesome, I have prepared a patched 1.9.1: http://jira.atlassian.com/secure/attachment/19390/lucene-core-1.9.1-atlassian-patched-2007-01-09.jar

Unfortunately we don't have a repeatable test for this so we will have to distribute to afflicted customers and - well, pray I guess. We have been seeing this sporadically in our main JIRA instance http://jira.atlassian.com so we will hopefully not observe it now.

We do only use the deleteDocuments(Term) method, so we are not sure whether this will truly fix our problem, but we note that that method calls deleteDocument(int) based on the TermDocs returned for the Term - and maybe they can be incorrect???

Out of interest, apart from changing from 1.4.3 to 1.9.1, in the JIRA 3.7 release we changed our default merge factor to 4 from 10. We hadn't seen this problem before, and suddenly we have had a reasonable number of occurrences.

> docs out of order
> -----------------
>
>                 Key: LUCENE-140
>                 URL: https://issues.apache.org/jira/browse/LUCENE-140
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: unspecified
>         Environment: Operating System: Linux
> Platform: PC
>            Reporter: legez
>         Assigned To: Michael McCandless
>         Attachments: bug23650.txt, corrupted.part1.rar, corrupted.part2.rar
>
>
> Hello,
>   I can not find out, why (and what) it is happening all the time. I got an
> exception:
> java.lang.IllegalStateException: docs out of order
>         at
> org.apache.lucene.index.SegmentMerger.appendPostings(SegmentMerger.java:219)
>         at
> org.apache.lucene.index.SegmentMerger.mergeTermInfo(SegmentMerger.java:191)
>         at
> org.apache.lucene.index.SegmentMerger.mergeTermInfos(SegmentMerger.java:172)
>         at org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:135)
>         at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:88)
>         at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:341)
>         at org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:250)
>         at Optimize.main(Optimize.java:29)
> It happens either in 1.2 and 1.3rc1 (anyway what happened to it? I can not find
> it neither in download nor in version list in this form). Everything seems OK. I
> can search through index, but I can not optimize it. Even worse after this
> exception every time I add new documents and close IndexWriter new segments is
> created! I think it has all documents added before, because of its size.
> My index is quite big: 500.000 docs, about 5gb of index directory.
> It is _repeatable_. I drop index, reindex everything. Afterwards I add a few
> docs, try to optimize and receive above exception.
> My documents' structure is:
>   static Document indexIt(String id_strony, Reader reader, String data_wydania,
> String id_wydania, String id_gazety, String data_wstawienia)
> {
>     Document doc = new Document();
>     doc.add(Field.Keyword("id", id_strony ));
>     doc.add(Field.Keyword("data_wydania", data_wydania));
>     doc.add(Field.Keyword("id_wydania", id_wydania));
>     doc.add(Field.Text("id_gazety", id_gazety));
>     doc.add(Field.Keyword("data_wstawienia", data_wstawienia));
>     doc.add(Field.Text("tresc", reader));
>     return doc;
> }
> Sincerely,
> legez

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