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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-3054) add assert to sorts catch broken comparators in tests
Date Fri, 29 Apr 2011 18:30:03 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-3054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Otis Gospodnetic updated LUCENE-3054:
-------------------------------------

    Affects Version/s: 3.1

Btw. this is with Lucene 3.1
For full thread: http://search-lucene.com/m/ytANA59Q9G1


> add assert to sorts catch broken comparators in tests
> -----------------------------------------------------
>
>                 Key: LUCENE-3054
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3054
>             Project: Lucene - Java
>          Issue Type: Task
>    Affects Versions: 3.1
>            Reporter: Robert Muir
>         Attachments: LUCENE-3054.patch
>
>
> Looking at Otis's sort problem on the mailing list, he said:
> {noformat}
> * looked for other places where this call is made - found it in
> MultiPhraseQuery$MultiPhraseWeight and changed that call from
> ArrayUtil.quickSort to ArrayUtil.mergeSort
> * now we no longer see SorterTemplate.quickSort in deep recursion when we do a
> thread dump
> {noformat}
> I thought this was interesting because PostingsAndFreq's comparator
> looks like it needs a tiebreaker.
> I think in our sorts we should add some asserts to try to catch some of these broken
comparators.

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