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 <wido at 42on.com > <mailto:wido at 42on.com>> 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 Pani? > > > > _________________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com <mailto:ceph-users at lists.ceph.com> > 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 > ceph-users at lists.ceph.com <mailto:ceph-users at lists.ceph.com> > http://lists.ceph.com/__listinfo.cgi/ceph-users-ceph.__com > <http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com> > > > > > -- > > Andrija Pani? > -------------------------------------- > http://admintweets.com > -------------------------------------- -- Wido den Hollander 42on B.V. Ceph trainer and consultant Phone: +31 (0)20 700 9902 Skype: contact42on
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