Re: cephfs does not seem to properly free up space

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On Tue, Apr 19, 2016 at 2:40 PM, Simion Rad <Simion.Rad@xxxxxxxxx> wrote:
> Hello,
>
>
> At my workplace we have a production cephfs cluster (334 TB on 60 OSDs)
> which was recently upgraded from Infernalis 9.2.0 to Infernalis 9.2.1 on
> Ubuntu 14.04.3 (linux 3.19.0-33).
>
> It seems that cephfs still doesn't free up space at all or at least that's
> what df command tells us.

Hmm, historically there were bugs with the purging code, but I thought
we fixed them before Infernalis.

Does the space get freed after you unmount the client?  Some issues
have involved clients holding onto references to unlinked inodes.

John

>
> Is there a better way of getting a df-like output with other command for
> cephfs  ?
>
>
> Thank you,
>
> Marius Rad
>
> SysAdmin
>
> www.propertyshark.com
>
>
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