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https://issues.apache.org/jira/browse/LUCENE-8819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16854352#comment-16854352
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Atri Sharma commented on LUCENE-8819:
-------------------------------------
The problem is that the assert does not account for docIDs within a single
segment i.e. when there are multiple documents within a segment collected by
the same leaf collector. The assert should only be checking at segment
boudaries to ensure that subsequent segments have the right sequence of DocIDs.
Attached is a patch to fix the same. I ran ant check and the guilty tests
passed.
[~ivera] Could you check if this fix passes at your end as well?
[^LUCENE-8819.patch]
> org.apache.lucene.search.TestTopDocsMerge.testSort_1 failure
> ------------------------------------------------------------
>
> Key: LUCENE-8819
> URL: https://issues.apache.org/jira/browse/LUCENE-8819
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Ignacio Vera
> Priority: Major
> Attachments: LUCENE-8819.patch
>
>
> It can be reproduced with:
>
> {code:java}
> ant test -Dtestcase=TestTopDocsMerge -Dtests.method=testSort_1
> -Dtests.seed=E916688CE5BC9122 -Dtests.multiplier=3 -Dtests.slow=true
> -Dtests.locale=es-US -Dtests.timezone=Pacific/Johnston -Dtests.asserts=true
> -Dtests.file.encoding=ISO-8859-1{code}
>
> Test fails in master and branch 8.x but it does not fail in branch 8.1.
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