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https://issues.apache.org/jira/browse/LUCENE-6529?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hoss Man updated LUCENE-6529:
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Attachment: LUCENE-6529.patch
updated patch that remoes the DocTermOrds so it always uses OrdWrappedTermsEnum
instead of conditionally using it based on the underlying reader.
patch still contains nocommits about increasing randomness in the tests -- i'm
going to let my machine hammer on this a bit, then i plan to resolve those
remaining test tweaks and commit to trunk later today.
> NumericFields + SlowCompositeReaderWrapper + UninvertedReader +
> -Dtests.codec=random can results in incorrect SortedSetDocValues
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-6529
> URL: https://issues.apache.org/jira/browse/LUCENE-6529
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Hoss Man
> Attachments: LUCENE-6529.patch, LUCENE-6529.patch, LUCENE-6529.patch
>
>
> Digging into SOLR-7631 and SOLR-7605 I became fairly confident that the only
> explanation of the behavior i was seeing was some sort of bug in either the
> randomized codec/postings-format or the UninvertedReader, that was only
> evident when two were combined and used on a multivalued Numeric Field using
> precision steps. But since i couldn't find any -Dtests.codec or
> -Dtests.postings.format options that would cause the bug 100% regardless of
> seed, I switched tactices and focused on reproducing the problem using
> UninvertedReader directly and checking the SortedSetDocValues.getValueCount().
> I now have a test that fails frequently (and consistently for any seed i
> find), but only with -Dtests.codec=random -- override it with
> -Dtests.codec=default and everything works fine (based on the exhaustive
> testing I did in the linked issues, i suspect every named codec works fine -
> but i didn't re-do that testing here)
> The failures only seem to happen when checking the
> SortedSetDocValues.getValueCount() of a SlowCompositeReaderWrapper around the
> UninvertedReader -- which suggests the root bug may actually be in
> SlowCompositeReaderWrapper? (but still has some dependency on the random
> codec)
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