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From "Robert Muir (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-3647) DocValues merging is not associative, leading to different results depending upon how merges execute
Date Wed, 14 Dec 2011 12:13:30 GMT
DocValues merging is not associative, leading to different results depending upon how merges
execute
----------------------------------------------------------------------------------------------------

                 Key: LUCENE-3647
                 URL: https://issues.apache.org/jira/browse/LUCENE-3647
             Project: Lucene - Java
          Issue Type: Bug
    Affects Versions: 4.0
            Reporter: Robert Muir


recently I cranked up TestDuelingCodecs to actually test docvalues (previously it wasn't testing
it at all).

This test is simple, it indexes the same random content with 2 different indexwriters, it
just allows them
to use different codecs with different indexwriterconfigs.

then it asserts the indexes are equal.

Sometimes, always on BYTES_FIXED_DEREF type, we end out with one reader that has a zero-filled
byte[] for a doc,
but that same document in the other reader has no docvalues at all.


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