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From "Michael McCandless (JIRA)" <>
Subject [jira] [Resolved] (LUCENE-7894) IndexWriter suffers temporary short-term amnesia
Date Sun, 02 Jul 2017 19:34:00 GMT


Michael McCandless resolved LUCENE-7894.
    Resolution: Fixed

> IndexWriter suffers temporary short-term amnesia
> ------------------------------------------------
>                 Key: LUCENE-7894
>                 URL:
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>            Priority: Blocker
>             Fix For: master (7.0)
>         Attachments: LUCENE-7894.patch
> Nightly benchmarks had been failing to run for a while due to trunk API changes, but
when I finally fixed those, the indexer fails because {{IW.maxDoc}} disagrees with the number
of documents indexed after all threads are done indexing.
> It's sort of crazy none of our tests caught this!
> I tracked down the bug; it was caused in LUCENE-7868.  The bug is not as bad as it sounds:
documents are not in fact lost, it's just IW's internal accounting for maxDoc that's temporarily
incorrect until you do a refresh or commit or close the index.
> I'm marking as blocker for 7.0.

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