On 07/24/2018 12:51 PM, Mateusz Skala (UST, POL) wrote: > Hello again, > > How can I determine $cctid for specific rbd name? Or is there any good > way to map admin-socket with rbd? >
Yes, check the output of 'perf dump', you can fetch the RBD image information from that JSON output. Wido > Regards > > Mateusz > > > > *From:*ceph-users [mailto:[email protected]] *On Behalf > Of *Mateusz Skala (UST, POL) > *Sent:* Tuesday, July 24, 2018 9:49 AM > *To:* [email protected] > *Cc:* [email protected] > *Subject:* [Possibly Forged Email] Re: [ceph-users] Read/write > statistics per RBD image > > > > Thank You for help, it is exactly that I need. > > Regards > > Mateusz > > > > *From:*Jason Dillaman [mailto:[email protected]] > *Sent:* Wednesday, July 18, 2018 1:28 PM > *To:* Mateusz Skala (UST, POL) <[email protected] > <mailto:[email protected]>> > *Cc:* dillaman <[email protected] <mailto:[email protected]>>; > ceph-users <[email protected] <mailto:[email protected]>> > *Subject:* Re: [ceph-users] Read/write statistics per RBD image > > > > Yup, on the host running librbd, you just need to enable the "admin > socket" in your ceph.conf and then use "ceph --admin-daemon > /path/to/image/admin/socket.asok perf dump" (i.e. not "ceph perf dump"). > > > > See the example in this tip window [1] for how to configure for a > "libvirt" CephX user. > > > > [1] http://docs.ceph.com/docs/mimic/rbd/libvirt/#configuring-ceph > > > > On Wed, Jul 18, 2018 at 4:02 AM Mateusz Skala (UST, POL) > <[email protected] <mailto:[email protected]>> wrote: > > Thanks for response. > > In ‘ceph perf dump’ there is no statistics for read/write operations > on specific RBD image, only for osd and total client operations. I > need to get statistics on one specific RBD image, to get top used > images. It is possible? > > Regards > > Mateusz > > > > *From:*Jason Dillaman [mailto:[email protected] > <mailto:[email protected]>] > *Sent:* Tuesday, July 17, 2018 3:29 PM > *To:* Mateusz Skala (UST, POL) <[email protected] > <mailto:[email protected]>> > *Cc:* ceph-users <[email protected] > <mailto:[email protected]>> > *Subject:* Re: [ceph-users] Read/write statistics per RBD image > > > > Yes, you just need to enable the "admin socket" in your ceph.conf > and then use "ceph --admin-daemon /path/to/image/admin/socket.asok > perf dump". > > > > On Tue, Jul 17, 2018 at 8:53 AM Mateusz Skala (UST, POL) > <[email protected] <mailto:[email protected]>> > wrote: > > Hi, > > It is possible to get statistics of issued reads/writes to > specific RBD image? Best will be statistics like in > /proc/diskstats in linux. > > Regards > > Mateusz > > _______________________________________________ > ceph-users mailing list > [email protected] <mailto:[email protected]> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > -- > > Jason > > > > > -- > > Jason > > > > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
