On 11/08/2013 03:50 AM, Wido den Hollander wrote:
On 11/07/2013 08:42 PM, Gruher, Joseph R wrote:
Is there any plan to implement some kind of QoS in Ceph? Say I want to
provide service level assurance to my OpenStack VMs and I might have to
throttle bandwidth to some to provide adequate bandwidth to others - is
anything like that planned for Ceph? Generally with regard to block
storage (rbds), not object or filesystem.
Or is there already a better way to do this elsewhere in the OpenStack
cloud?
I don't know if OpenStack supports it, but in CloudStack we recently
implemented the I/O throttling mechanism of Qemu via libvirt.
That might be a solution if OpenStack implements that as well?
Indeed, that was implemented in OpenStack Havana. I think the docs
haven't been updated yet, but one of the related blueprints is:
https://blueprints.launchpad.net/cinder/+spec/pass-ratelimit-info-to-nova
Thanks,
Joe
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