On Wed, Jan 22, 2014 at 8:04 AM, Dan Ryder (daryder) <dary...@cisco.com> wrote: > > Hello, > > > > I am wondering if there is any detailed documentation for obtaining I/O > statistics for a Ceph cluster. > > The important metrics I’m looking for are: the number of operations, size of > operations, and latency of operations – by operations I’m referring to > read/write. > > > > I’ve seen what look like the right statistics after running a “ceph > --admin-daemon /var/run/ceph/ceph-osd.0.asok perf dump”, and looking under > the “osd” section, but I would like to confirm what exactly these stats > represent. > > > > If there is any documentation you could point me to, or any other pertinent > information to offer it would be very helpful.
Those are indeed performance statistics on various parts of the OSD pipeline, but I'm not aware of any documentation on them. I know we've described them in emails before though, so googling their names should find you what you're looking for. -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
