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https://issues.apache.org/jira/browse/LUCENE-8734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nhat Nguyen updated LUCENE-8734:
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    Labels: pull-request-available  (was: )

> nextWriteDelGen of SegmentCommitInfo should be persisted
> --------------------------------------------------------
>
>                 Key: LUCENE-8734
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8734
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: core/index
>    Affects Versions: 7.7.1, 8.0
>            Reporter: Nhat Nguyen
>            Assignee: Nhat Nguyen
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> When opening an IndexWriter, we will set nextWriteDelGen, 
> nextWriteFieldInfosGen, and nextWriteDocValuesGen beyond what we have in the 
> directory to avoid double writes in cases where the previous IW was not 
> closed gracefully or the new IW is opened with a previous commit (not the 
> latest commit). We need to persist these values; otherwise, they will be lost 
> when the current IW is closed.



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