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Posted to issues@lucene.apache.org by "Jim Ferenczi (Jira)" <ji...@apache.org> on 2021/10/27 14:02:00 UTC
[jira] [Created] (LUCENE-10208) Minimum score can decrease in
concurrent search
Jim Ferenczi created LUCENE-10208:
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Summary: Minimum score can decrease in concurrent search
Key: LUCENE-10208
URL: https://issues.apache.org/jira/browse/LUCENE-10208
Project: Lucene - Core
Issue Type: Bug
Reporter: Jim Ferenczi
TestLatLonPointDistanceFeatureQuery#testCompareSorting started to fail sporadically after https://github.com/apache/lucene/pull/331.
The test change added in this PR exposes an existing bug in top docs collector.
They re-set the minimum score multiple times per segment when a bulk scorer is used.
In practice this is not a problem because the local minimum score cannot decrease.
However when concurrent search is used, the global minimum score is updated after the local one so that breaks the assertion.
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