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https://issues.apache.org/jira/browse/LUCENE-3605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173597#comment-13173597
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Robert Muir commented on LUCENE-3605:
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I meant getter... you already nuked the setter
> revisit segments.gen sleeping
> -----------------------------
>
> Key: LUCENE-3605
> URL: https://issues.apache.org/jira/browse/LUCENE-3605
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Robert Muir
> Assignee: Michael McCandless
> Attachments: LUCENE-3605.patch
>
>
> in LUCENE-3601, i worked up a change where we intentionally crash() all
> un-fsynced files
> in tests to ensure that we are calling sync on files when we should.
> I think this would be nice to do always (and with some fixes all tests pass).
> But this is super-slow sometimes because when we corrupt the unsynced
> segments.gen, it causes
> SIS.read to take 500ms each time (and in checkindex for some reason we do
> this twice, which seems wrong).
> I can workaround this for now for tests (just do a partial crash that avoids
> corrupting the segments.gen),
> but I wanted to create this issue for discussion about the
> sleeping/non-fsyncing of segments.gen, just
> because i guess its possible someone could hit this slowness.
>
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