Re: How to increase filesizelimit ?

[Markus Goldberg <goldberg@xxxxxxxxxxxxxxxxx>]

Hi Sage,
hopefully two last questions:
How to delete an existing mds ? The ceph-manual says: "Coming soon"
I tried:
  root@bd-a:/# ceph-deploy mds destroy bd-0 bd-1 bd-2
  [ceph_deploy.cli][INFO  ] Invoked (1.3.4): /usr/bin/ceph-deploy mds 
destroy bd-0 bd-1 bd-2
  [ceph_deploy.mds][ERROR ] subcommand destroy not implemented
  root@bd-a:/#

I think the existing data is lost during destroying the mds.
Is it possible to create a second mds beside the existing and copy the 
data from one to the other internally or do i have to save the data to 
an external repository ?

Thank you,
  Markus
Am 09.01.2014 13:21, schrieb Sage Weil:
> I take it back: it is encoded in teh MDSMap, so it can be changed for an
> existing file system, except for teh fact that the monitor doesn't yet
> have a command to do it.  I can put a patch together to do that.  In the
> meantime, you *can* set the limit on cluster creation by adding
>
>   mds max file size = 100000000000000
>
> (or whatever) to your ceph.conf before creating the monitors.
>
> sage
>
>
> On Thu, 9 Jan 2014, Markus Goldberg wrote:
>
> > Hi Sage,
> > that sounds good.
> >
> > Thank you very much,
> >    Markus
> > Am 09.01.2014 13:10, schrieb Sage Weil:
> >
> >        Hi Markus,
> >
> >        There is a compile time limit of 1 tb per file in cephfs.  We
> >        can increase that pretty easily.  I need to check whether it can
> >        be safely switched to a configurable...
> >
> >        sage
> >
> >
> >
> >        Markus Goldberg <goldberg@xxxxxxxxxxxxxxxxx> wrote:
> >
> > Hi,
> > i want to use my ceph for a backup-repository holding virtual-tapes.
> > When i copy files from my existing backup-system to ceph all files are
> > cut at 1TB. The biggest files are arounf 5TB for now.
> > So i'm afraid, that the actual filesizelimit is set to 1TB.
> > How can I increase this limit ?
> > Can this be done without losing existing data ?
> >
> > Thank you very much,
> >     Markus
> >
> >
> > ____________________________________________________________________________
> >
> > Markus Goldberg       Universit?t Hildesheim
> >                         Rechenzentrum
> > Tel +49 5121 88392822 Marienburger Platz 22, D-31141 Hildesheim, Germany
> > Fax +49 5121 88392823 email goldberg@xxxxxxxxxxxxxxxxx
> > ____________________________________________________________________________
> >
> >
> >
> > ____________________________________________________________________________
> >
> > ceph-users mailing list
> > ceph-users@xxxxxxxxxxxxxx
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
> >
> > --
> > Sent from Kaiten Mail. Please excuse my brevity.
> >
> >
> >
> > --
> > MfG,
> >    Markus Goldberg
> >
> > --------------------------------------------------------------------------
> > Markus Goldberg       Universit?t Hildesheim
> >                        Rechenzentrum
> > Tel +49 5121 88392822 Marienburger Platz 22, D-31141 Hildesheim, Germany
> > Fax +49 5121 88392823 email goldberg@xxxxxxxxxxxxxxxxx
> > --------------------------------------------------------------------------


--
MfG,
  Markus Goldberg

--------------------------------------------------------------------------
Markus Goldberg       Universität Hildesheim
                      Rechenzentrum
Tel +49 5121 88392822 Marienburger Platz 22, D-31141 Hildesheim, Germany
Fax +49 5121 88392823 email goldberg@xxxxxxxxxxxxxxxxx
--------------------------------------------------------------------------


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