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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-555) Index Corruption
Date Tue, 25 Apr 2006 18:27:03 GMT
    [ http://issues.apache.org/jira/browse/LUCENE-555?page=comments#action_12376313 ] 

Yonik Seeley commented on LUCENE-555:
-------------------------------------

Dan, I am interested in the source if index corruption.
If you can share a test that reproduces this, it would be helpful.


> Index Corruption
> ----------------
>
>          Key: LUCENE-555
>          URL: http://issues.apache.org/jira/browse/LUCENE-555
>      Project: Lucene - Java
>         Type: Bug

>   Components: Index
>     Versions: 1.9
>  Environment: Linux FC4, Java 1.4.9
>     Reporter: dan
>     Priority: Critical

>
> Index Corruption
> >>>>>>>>> output
> java.io.FileNotFoundException: ../_aki.fnm (No such file or directory)
>         at java.io.RandomAccessFile.open(Native Method)
>         at java.io.RandomAccessFile.<init>(RandomAccessFile.java:204)
>         at org.apache.lucene.store.FSIndexInput$Descriptor.<init>(FSDirectory.java:425)
>         at org.apache.lucene.store.FSIndexInput.<init>(FSDirectory.java:434)
>         at org.apache.lucene.store.FSDirectory.openInput(FSDirectory.java:324)
>         at org.apache.lucene.index.FieldInfos.<init>(FieldInfos.java:56)
>         at org.apache.lucene.index.SegmentReader.initialize(SegmentReader.java:144)
>         at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:129)
>         at org.apache.lucene.index.SegmentReader.get(SegmentReader.java:110)
>         at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:674)
>         at org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:658)
>         at org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:517)
> >>>>>>>>> input
> - I open an index, I read, I write, I optimize, and eventually the above happens. The
index is unusable.
> - This has happened to me somewhere between 20 and 30 times now - on indexes of different
shapes and sizes.
> - I don't know the reason. But, the following requirement applies regardless.
> >>>>>>>>> requirement
> - Like all modern database programs, there has to be a way to repair an index. Period.

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