On Sun, 9 Nov 2014 21:59:30 +0000 Daniel Schwager wrote: > Hi, > > is there a possibility to see which rbd-device (used by a kvm > hypervisor) produces high load on a ceph cluster? "ceph -w" shows only > the total usage - but I don't know see which client or rbd-device is > responsible for this load. > That's been asked before and answer unfortunately is no. There is a blueprint for the question that usually follows this one, as in a way regulate IO per image: http://wiki.ceph.com/Planning/Blueprints/Giant/Add_QoS_capacity_to_librbd So I'd assume this would likely expose counters that hold the information you're after. If you're using libvirt, using virt-top should make really busy VMs stand out pretty quickly. I'm using ganeti, so I'd _really_ love to have what you're asking for implemented in Ceph. Regards, Christian > best regards > Danny > -- Christian Balzer Network/Systems Engineer chibi@xxxxxxx Global OnLine Japan/Fusion Communications http://www.gol.com/ _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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