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https://issues.apache.org/jira/browse/SOLR-5140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13737543#comment-13737543
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ASF subversion and git services commented on SOLR-5140:
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Commit 1513297 from hoss...@apache.org in branch 'dev/trunk'
[ https://svn.apache.org/r1513297 ]
SOLR-5140: pin TestGroupingSearch to use LogDocMergePolicy for predictable
'unordered' results
> TestGroupingSearch fails in unreproducible ways
> -----------------------------------------------
>
> Key: SOLR-5140
> URL: https://issues.apache.org/jira/browse/SOLR-5140
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
> Assignee: Hoss Man
>
> There have been two very recent jenkins failures in TestGroupingSearch whose
> failure conditions seem to suggest they may be related to the MergePolicy
> randomization changes made in SOLR-4952, because they depending on exact
> ordered comparisons of (grouped) results that are not sorted - so differently
> merged indexes might produce differnet results...
> https://mail-archives.apache.org/mod_mbox/lucene-dev/201308.mbox/%3c556758084.41.1376060637739.javamail.jenk...@serv1.sd-datasolutions.de%3E
> https://mail-archives.apache.org/mod_mbox/lucene-dev/201308.mbox/%3c1729705091.81.1376255711416.javamail.jenk...@serv1.sd-datasolutions.de%3E
> ...oddly, these failures don't seem to reproduce reliably with the same seed,
> so rather then just fix the MP as part of SOLR-4952 I'm opening a new linked
> issue to keep track of this in case additional failures still happen
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