On Wed, Jan 4, 2017 at 4:33 PM, Henrik Korkuc <lists@xxxxxxxxx> wrote: > On 17-01-04 03:16, Gregory Farnum wrote: >> >> On Fri, Dec 23, 2016 at 12:04 AM, Henrik Korkuc <lists@xxxxxxxxx> wrote: >>> >>> Hello, >>> >>> I wondered if Ceph can emit stats (via perf counters, statsd or in some >>> other way) IO and bandwidth stats per Ceph user? I was unable to find >>> such >>> stats. I know that we can get at least some of these stats from RGW, but >>> I'd >>> like to have something like that for RBD and CephFS. Example usage could >>> be >>> figuring out who is hammering CephFS with IO requests. >>> >>> Maybe someone could provide basic guidance where to dig in if I'd like to >>> make this feature myself? I there any plans/blueprints for such stats? >> >> This really isn't feasible right now as a starter project: doing it >> "for real" requires all OSDs track all clients and IOs and then a >> central location to receive that data and correlate it. We discussed a >> sampling implementation for ceph-mgr recently in the Ceph Dev Monthly >> and I think work is upcoming to enable it, but I'm not sure what kind >> of timeline it's on. >> -Greg > > > I am thinking about implementing it myself. My high level idea is to have > additional thread per OSD to collect these stats and periodically emit them > to statsd for aggregation by metrics system. As I am not familiar with Ceph > code base it may take a while to implement.. :) > > If there are some docs/plans for ceph-mgr metrics maybe I could contribute It's not metrics but something: https://github.com/ceph/ceph/tree/master/doc/mgr > to that instead doing it my way? This way we would be more aligned and it > would be easier to contribute it back to Ceph. > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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