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https://issues.apache.org/jira/browse/COUCHDB-1652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14392449#comment-14392449
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Robert Newson commented on COUCHDB-1652:
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does this ever happen without the compaction daemon enabled? I wonder if it's
holding the db open (which would be ironic...)
> CouchDB does not release disk space from .deleted files
> -------------------------------------------------------
>
> Key: COUCHDB-1652
> URL: https://issues.apache.org/jira/browse/COUCHDB-1652
> Project: CouchDB
> Issue Type: Bug
> Components: Database Core
> Affects Versions: 1.2
> Environment: Ubuntu 8.04, 10.04, 12.04 , CouchDB 1.2.0, CouchDB
> 1.2.1, Erlang 14b4 64bit platform
> Reporter: Simon Eisenmann
> Assignee: Randall Leeds
>
> I noticed on long running servers a disk space increase over time. Though the
> database in itself did not grow. After investigation i found that there are
> lots of files still open which have already been deleted.
> I see this on all installations on Ubuntu 8.04, 10.04 and 12.04 all 64bit
> with CouchDB 1.2.0 and 1.2.1 with Erlang 14b4.
> lsof |grep deleted
> beam.smp 4845 couchdb 24u REG 254,1 5890159
> 171082
> /var/lib/couchdb/.delete/582878aeee568e3c06dc3262fdac494b (deleted)
> beam.smp 4845 couchdb 25u REG 254,1 5890159
> 171080
> /var/lib/couchdb/.delete/95b92c25e3d7ea2f2045a2ee37afd8fe (deleted)
> beam.smp 4845 couchdb 26u REG 254,1 5890183
> 171081
> /var/lib/couchdb/.delete/bb616c2baae507b7ec890451650e40c9 (deleted)
> beam.smp 4845 couchdb 27u REG 254,1 5890159
> 244324
> /var/lib/couchdb/.delete/f7a4ba016d098c34f1ff97ca61a824f8 (deleted)
> beam.smp 4845 couchdb 28u REG 254,1 5890159
> 171196
> CouchDB should release the file pointer on those files, to release the disk
> space to tools like df.
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