[Lustre-discuss] delete a "undeletable" file

[David Cohen]

You can move the entire folder (mv) to another location /lustre_fs/somthing/badfiles recreate the folder and mv back only the good files.

> If I run "unlink .viminfo" I got the same error:
> 
> unlink: cannot unlink `.viminfo': Invalid argument
> 
> 
> I can't stop the MDS/OSS  to do a lfsck or e2fsck because is a filesystem in 
> production of a lots of "terabytes"
> 
> 
> Any idea more to delete the "damm file"?
> 
> 
> 
> THANKS!
> 
> -----Mensaje original----- 
> From: Bob Ball
> Sent: Thursday, March 07, 2013 6:09 PM
> To: Colin Faber
> Cc: Alfonso Pardo ; Ben Evans ; lustre-discuss at lists.lustre.org
> Subject: Re: [Lustre-discuss] delete a "undeletable" file
> 
> You could just unlink it instead.  That will work when rm fails.
> 
> bob
> 
> On 3/7/2013 11:10 AM, Colin Faber wrote:
> > Hi,
> >
> > If the file is disassociated with an OST which is offline, bring the OST
> > back online, if the OST object it self is missing then you can remove
> > the file using 'unlink' rather than 'rm' to unlink the object meta data.
> >
> > If you want to try and recover the missing OST object an lfs getstripe
> > against the file should yield the the OST on which it resides. Once
> > that's determined you can take that OST offline and e2fsck may
> > successfully restore it.
> >
> > Another option as Ben correctly points out, lfsck will correct / prune
> > this meta data as well as the now orphaned (if any) OST object.
> >
> > -cf
> >
> >
> > On 03/07/2013 08:30 AM, Ben Evans wrote:
> >> The snarky reply would be to use Emacs.
> >>
> >> More seriously:
> >>
> >> When I see something like ?????? in the attributes for a file, my
> >> first thought is that the group_upcall on the filesystem is not
> >> correct, so permissions are broken. If you can log on as root, you may
> >> be able to see it clearly.
> >>
> >> If that doesn't work, you may have to run an fsck on the MDT (which
> >> may take minutes to hours depending on the size of your MDT)
> >>
> >> If that doesn't work, follow the procedure for running an lfsck (which
> >> will take a long time, and require quite a bit of storage to execute)
> >>
> >> -Ben Evans
> >>
> >> ------------------------------------------------------------------------
> >> *From:* lustre-discuss-bounces at lists.lustre.org
> >> [lustre-discuss-bounces at lists.lustre.org] on behalf of Alfonso Pardo
> >> [alfonso.pardo at ciemat.es]
> >> *Sent:* Thursday, March 07, 2013 10:09 AM
> >> *To:* lustre-discuss at lists.lustre.org; wc-discuss at whamcloud.com
> >> *Subject:* [Lustre-discuss] delete a "undeletable" file
> >>
> >> Hello,
> >> I have a corrupt file than I can’t delete.
> >> This is my file:
> >>> ls –la .viminfo
> >> /-????????? ? ? ? ? ? .viminfo/
> >> />lfs getstripe .viminfo/
> >> /.viminfo/
> >> /lmm_stripe_count: 6/
> >> /lmm_stripe_size: 1048576/
> >> /lmm_layout_gen: 0/
> >> /lmm_stripe_offset: 18/
> >> /obdidx objid objid group/
> >> /18 1442898 0x160452 0/
> >> /22 48 0x30 0/
> >> /19 1442770 0x1603d2 0/
> >> /21 49 0x31 0/
> >> /23 48 0x30 0/
> >> /20 50 0x32 0/
> >> And these are my OST:
> >> />lctl dl/
> >> /0 UP mgc MGC192.168.11.9 at tcp f6d5b76f-a7e0-61ca-b389-cb3896b86186 5/
> >> /1 UP lov cetafs-clilov-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 4/
> >> /2 UP lmv cetafs-clilmv-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 4/
> >> /3 UP mdc cetafs-MDT0000-mdc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /4 UP osc cetafs-OST0000-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /5 UP osc cetafs-OST0001-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /6 UP osc cetafs-OST0002-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /7 UP osc cetafs-OST0003-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /8 UP osc cetafs-OST0004-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /9 UP osc cetafs-OST0005-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /10 UP osc cetafs-OST0006-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /11 UP osc cetafs-OST0007-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /12 UP osc cetafs-OST0012-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /13 UP osc cetafs-OST0013-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /14 UP osc cetafs-OST0008-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /15 UP osc cetafs-OST000a-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /16 UP osc cetafs-OST0009-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /17 UP osc cetafs-OST000b-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /18 UP osc cetafs-OST000c-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /19 UP osc cetafs-OST000d-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /20 UP osc cetafs-OST000e-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /21 UP osc cetafs-OST000f-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /22 UP osc cetafs-OST0010-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /23 UP osc cetafs-OST0011-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /24 UP osc cetafs-OST0018-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /25 UP osc cetafs-OST0015-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /26 UP osc cetafs-OST0016-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> /27 UP osc cetafs-OST0017-osc-ffff88009816e400
> >> a7ba6783-6ed8-2197-4ffc-fecbff9860a5 5/
> >> When I try to delete the file I got the next menssage:
> >> /> rm .viminfo/
> >> /rm: cannot remove `.viminfo': Invalid argument/
> >> How can I do to delete the file?
> >> THANKS!
> >>
> >> //
> >>
> >> //
> >>
> >> //
> >>
> >> //
> >>
> >> /Alfonso Pardo Díaz
> >> /*/Researcher / System Administrator at CETA-Ciemat /*
> >> /c/ Sola nº 1; 10200 Trujillo, ESPAÑA/
> >> /Tel: +34 927 65 93 17 Fax: +34 927 32 32 37/
> >>
> >> CETA-Ciemat logo <http://www.ceta-ciemat.es/>
> >>
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