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From "Hoss Man (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-7301) updateNumericDocValue mixed with updateDocument can cause data loss in some randomized testing
Date Thu, 26 May 2016 00:30:13 GMT
Hoss Man created LUCENE-7301:
--------------------------------

             Summary: updateNumericDocValue mixed with updateDocument can cause data loss
in some randomized testing
                 Key: LUCENE-7301
                 URL: https://issues.apache.org/jira/browse/LUCENE-7301
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Hoss Man



SOLR-5944 has been held up by a while due to some extremely rare randomized test failures.

Ishan and I have been working on whitling those Solr test failures down, trying to create
more isolated reproducable test failures, and i *think* i've tracked it down to a bug in IndexWriter
when the client calls to updateDocument intermixed with calls to updateNumericDocValue *AND*
IndexWriterConfig.setMaxBufferedDocs is very low (i suspect "how low" depends on the number
of quantity/types of updates -- but *just* got something that reproduced, and haven't tried
reproducing with higher values of maxBufferedDocs and larger sequences of updateDocument /
updateNumericDocValue calls.




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