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https://issues.apache.org/jira/browse/LUCENE-8381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nhat Nguyen updated LUCENE-8381:
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Summary: IW counts hard-deletes as soft-deletes in merges (was:
PendingSoftDeletes#onNewReader should adjust soft-delete count)
> IW counts hard-deletes as soft-deletes in merges
> ------------------------------------------------
>
> Key: LUCENE-8381
> URL: https://issues.apache.org/jira/browse/LUCENE-8381
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 7.4
> Reporter: Nhat Nguyen
> Assignee: Simon Willnauer
> Priority: Major
> Fix For: master (8.0), 7.5, 7.4.1
>
> Attachments: LUCENE-8381-inline.patch, LUCENE-8381-merge.patch,
> LUCENE-8381.patch, LUCENE-8381.patch, LUCENE-8381.patch,
> merge-soft-hard-deletes.patch
>
>
> The current PendingSoftDeletes#onNewReader does not handle these two edge
> cases correctly.
> # If the soft-deletes DV was applied to PendingSoftDeletes already,
> newDelCount should be less than the soft delete count recorded in
> SegmentInfo. testSoftDeleteWithTryUpdateDocValue trips the newSoftDelCount
> assertion.
> # If the soft-deleted docs were hard-deleted, we should reduce the
> softDelCount in the segmentInfo on a new reader.
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