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From "Bob Clary (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-926) Compaction does not release file descriptors
Date Tue, 08 Feb 2011 12:25:57 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12991951#comment-12991951
] 

Bob Clary commented on COUCHDB-926:
-----------------------------------

While the situation in 1.0.2 is much improved over 1.0.1, there are still cases where the
deleted files are not released and are still held open by beam. I don't have specific steps
to reproduce however it appears to be related to heavy load with couchdb crashing after compacting
views and leaving the original file open.

> Compaction does not release file descriptors
> --------------------------------------------
>
>                 Key: COUCHDB-926
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-926
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Database Core
>    Affects Versions: 1.0.1
>         Environment: Ubuntu 9.04/10.4
>            Reporter: Russell van der Walt
>            Assignee: Filipe Manana
>             Fix For: 1.0.2, 1.1
>
>         Attachments: test_comp.sh
>
>
> When couch compacts a database, file descriptors of the deleted files are left open,
causing the freed disk space to not be released to the system. With regular compaction, the
system eventually runs out of disk space.
> There is a conversation thread in the user mailing list titled "Couch not releasing deleted
files" that gives more insight into the problem, but I have been unable to find a bug report
for it, so please accept my apologies if this has already been dealt with.

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