rbd watchers

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Hi,

Thanks for the suggestion, but unfortunately there are no snapshots for
this image either.

Still confused :(


On 22 May 2014 02:54, Mandell Degerness <mandell at pistoncloud.com> wrote:

> The times I have seen this message, it has always been because there
> are snapshots of the image that haven't been deleted yet. You can see
> the snapshots with "rbd snap list <image>".
>
> On Tue, May 20, 2014 at 4:26 AM, James Eckersall
> <james.eckersall at gmail.com> wrote:
> > Hi,
> >
> >
> >
> > I'm having some trouble with an rbd image.  I want to rename the current
> rbd
> > and create a new rbd with the same name.
> >
> > I renamed the rbd with rbd mv, but it was still mapped on another node,
> so
> > rbd mv gave me an error that it was unable to remove the source.
> >
> >
> > I then unmapped the original rbd and tried to remove it.
> >
> >
> > Despite it being unmapped, the cluster still believes that there is a
> > watcher on the rbd:
> >
> >
> > root at ceph-admin:~# rados -p poolname listwatchers rbdname.rbd
> >
> > watcher=x.x.x.x:0/2329830975 client.26367 cookie=48
> >
> > root at ceph-admin:~# rbd rm -p poolname rbdname
> >
> > Removing image: 99% complete...failed.2014-05-20 11:50:15.023823
> > 7fa6372e4780 -1 librbd: error removing header: (16) Device or resource
> busy
> >
> >
> > rbd: error: image still has watchers
> >
> > This means the image is still open or the client using it crashed. Try
> again
> > after closing/unmapping it or waiting 30s for the crashed client to
> timeout.
> >
> >
> >
> > I've already rebooted the node that the cluster claims is a watcher and
> > confirmed it definitely is not mapped.
> >
> > I'm 99.9% sure that there are no nodes actually using this rbd.
> >
> >
> > Does anyone know how I can get rid of it?
> >
> >
> > Currently running ceph 0.73-1 on Ubuntu 12.04.
> >
> >
> > Thanks
> >
> >
> > J
> >
> >
> > _______________________________________________
> > ceph-users mailing list
> > ceph-users at lists.ceph.com
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
>
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