On 08/08/2014 02:02 PM, Andrija Panic wrote:
Thanks Wido, yes I'm aware of CloudStack in that sense, but would prefer some precise OP/s per ceph Image at least... Will check CloudStack then...
Ceph doesn't really know that since RBD is just a layer on top of RADOS. In the end the CloudStack hypervisors are doing I/O towards RADOS objects, so giving exact stats of how many IOps you are seeing per image is hard to figure out.
The hypervisor knows this best since it sees all the I/O going through. Wido
Thx On 8 August 2014 13:53, Wido den Hollander <[email protected] <mailto:[email protected]>> wrote: On 08/08/2014 01:51 PM, Andrija Panic wrote: Hi, we just had some new clients, and have suffered very big degradation in CEPH performance for some reasons (we are using CloudStack). I'm wondering if there is way to monitor OP/s or similar usage by client connected, so we can isolate the heavy client ? This is not very easy to do with Ceph, but CloudStack keeps track of this in the usage database. With never versions of CloudStack you can also limit the IOps of Instances to prevent such situations. Also, what is the general best practice to monitor these kind of changes in CEPH ? I'm talking about R/W or OP/s change or similar... Thanks, -- Andrija Panić _________________________________________________ ceph-users mailing list [email protected] <mailto:[email protected]> http://lists.ceph.com/__listinfo.cgi/ceph-users-ceph.__com <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com> -- Wido den Hollander 42on B.V. Ceph trainer and consultant Phone: +31 (0)20 700 9902 <tel:%2B31%20%280%2920%20700%209902> Skype: contact42on _________________________________________________ ceph-users mailing list [email protected] <mailto:[email protected]> http://lists.ceph.com/__listinfo.cgi/ceph-users-ceph.__com <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com> -- Andrija Panić -------------------------------------- http://admintweets.com --------------------------------------
-- Wido den Hollander 42on B.V. Ceph trainer and consultant Phone: +31 (0)20 700 9902 Skype: contact42on _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
