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From "Robert Newson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COUCHDB-1592) Free space check for automatic compaction doesn't follow symlinks
Date Wed, 19 Mar 2014 11:55:43 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-1592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13940418#comment-13940418
] 

Robert Newson commented on COUCHDB-1592:
----------------------------------------

welp, read_file_info returns 'regular' for symlinks on OS X and Linux, so I guess this is
a bust.

vagrant@debian-6:~$ file bar
bar: symbolic link to `foo'
vagrant@debian-6:~$ erl
Erlang R14A (erts-5.8) [source] [64-bit] [rq:1] [async-threads:0] [kernel-poll:false]

Eshell V5.8  (abort with ^G)
1> file:read_file_info("bar").
{ok,{file_info,0,regular,read_write,
               {{2014,3,19},{11,53,29}},
               {{2014,3,19},{11,53,29}},
               {{2014,3,19},{11,53,29}},
               33188,1,65024,0,1417237,900,900}}

> Free space check for automatic compaction doesn't follow symlinks
> -----------------------------------------------------------------
>
>                 Key: COUCHDB-1592
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1592
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Database Core
>    Affects Versions: 1.2
>            Reporter: Nils Breunese
>
> We've got a problem with automatic compaction not running due to low diskspace according
to CouchDB. According to our system administrators there is more than enough space (more than
twice the currently used space), but the data directory is a symlink to the real data storage.
It seems CouchDB is checking the diskspace on the filesystem on which the symlink resides
instead of the diskspace on the linked filesystem.



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