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Posted to dev@lucene.apache.org by "Shai Erera (JIRA)" <ji...@apache.org> on 2014/05/01 20:43:18 UTC
[jira] [Commented] (LUCENE-5636) SegmentCommitInfo continues to
list unneeded gen'd files
[ https://issues.apache.org/jira/browse/LUCENE-5636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13986859#comment-13986859 ]
Shai Erera commented on LUCENE-5636:
------------------------------------
Hmm, actually I think I can fix it w/o breaking index back-compat, by manually removing the old .fnm files in SegCommitInfo (I'll also improve how this is done in general). Assuming very little apps, if at all, write their own FieldInfosFormat, I think that's acceptable? I'll work on a patch later.
> SegmentCommitInfo continues to list unneeded gen'd files
> --------------------------------------------------------
>
> Key: LUCENE-5636
> URL: https://issues.apache.org/jira/browse/LUCENE-5636
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/index
> Reporter: Shai Erera
> Assignee: Shai Erera
> Priority: Critical
> Attachments: LUCENE-5636.patch
>
>
> I thought I handled it in LUCENE-5246, but turns out I didn't handle it fully. I'll upload a patch which improves the test to expose the bug. I know where it is, but I'm not sure how to fix it without breaking index back-compat. Can we do that on experimental features?
> The problem is that if you update different fields in different gens, the FieldInfos files of older gens remain referenced (still!!). I open a new issue since LUCENE-5246 is already resolved and released, so don't want to mess up our JIRA...
> The severity of the bug is that unneeded files are still referenced in the index. Everything still works correctly, it's just that .fnm files are still there. But as I wrote, I'm still not sure how to solve it without requiring apps that use dv updates to reindex.
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