Re: [MooseFS-Users] Large trash space without performing deletion operations

[Piotr R. K. <pio...@mo...>]

Maybe rsync deleted some files during syncing if it was called several times?

MooseFS has a system-wide trash with a per-file configurable trashtime period (see https://moosefs.com/manpages/mfstrashtime.html <https://moosefs.com/manpages/mfstrashtime.html>), by default it is 86400 seconds, so 24 hours. You can configure trashtime before file is deleted.


You can access the trash by mounting it:

mkdir /mnt/mfsmeta
mfsmount -H mfsmaster.host.name -o mfsmeta /mnt/mfsmeta

in /mnt/mfsmeta/trash you have 4096 sub-trashes, just navigate to one and list files - their names will be pseudo-paths, so you can check what actually is in trash (ls -l). You can move these files to "undel" dir, which will cause undelete or remove them from (sub)trash - just issue rm *

You can also mount a trash with no subtrashes (-o mfsmeta,mfsflattrash), but in case of many objects in trash, listing them may be not a good idea.


Best regards,
Peter

-- 
Piotr Robert Konopelko
MooseFS Client Support Team | moosefs.com <https://moosefs.com/>
> On 12 May 2017, at 11:59 PM, David Myer <dav...@pr...> wrote:
> 
> Hi,
> 
> I have noticed a large amount of trashed files despite performing no deletion operations.
> 
> So far I have only been filling up my mfs mount using rsync (without any rsync destination deletion flags set).
> 
> What would be causing this large trash space?
> 
> total space: 8.0 TiB
> avail space: 4.2 TiB
> trash space: 387 GiB
> trash files: 915451
> files: 3928894
> chunks: 3609973
> all chunk copies: 7219946
> 
> Thanks,
> Dave
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