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https://issues.apache.org/jira/browse/LUCENE-8045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alan Woodward updated LUCENE-8045:
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Attachment: LUCENE-8045.patch
Turns out that it wasn't difficult to make ParallelLeafReader.getFieldInfos()
return the right thing, and dv updates do seem to work correctly otherwise.
Here's a patch fixing things.
> ParallelReader does not propagate doc values generation numbers
> ---------------------------------------------------------------
>
> Key: LUCENE-8045
> URL: https://issues.apache.org/jira/browse/LUCENE-8045
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Attachments: LUCENE-8045.patch
>
>
> Exposed by this test failure:
> https://jenkins.thetaphi.de/job/Lucene-Solr-7.x-Linux/777/testReport/junit/org.apache.lucene.search/TestLRUQueryCache/testDocValuesUpdatesDontBreakCache/
> A reader is randomly wrapped with a ParallelLeafReader, which does not then
> correctly propagate the dvGen into its own FieldInfo.
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