On Tue, 3 Jul 2012, Stefan Priebe - Profihost AG wrote:
> Hello,
>
> Am 02.07.2012 22:30, schrieb Josh Durgin:
> > If you add admin_socket=/path/to/admin_socket for your client running
> > qemu (in that client's ceph.conf section or manually in the qemu
> > command line) you can check that caching is enabled:
> >
> > ceph --admin-daemon /path/to/admin_socket show config | grep rbd_cache
> >
> > And see statistics it generates (look for cache) with:
> >
> > ceph --admin-daemon /path/to/admin_socket perfcounters_dump
>
> This doesn't work for me:
> ceph --admin-daemon /var/run/ceph.sock show config
> read only got 0 bytes of 4 expected for response length; invalid
> command?2012-07-03 09:46:57.931821 7fa75d129700 -1 asok(0x8115a0) AdminSocket:
> request 'show config' not defined
Oh, it's 'config show'. Also, 'help' will list the supported commands.
> Also perfcounters does not show anything:
> # ceph --admin-daemon /var/run/ceph.sock perfcounters_dump
> {}
There may be another daemon that tried to attach to the same socket file.
You might want to set 'admin socket = /var/run/ceph/$name.sock' or
something similar, or whatever else is necessary to make it a unique file.
> ~]# ceph -v
> ceph version 0.48argonaut-2-gb576faa
> (commit:b576faa6f24356f4d3ec7205e298d58659e29c68)
Out of curiousity, what patches are you applying on top of the release?
sage
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