Re: IO rate-limiting with Ceph RBD (and libvirt)

["Anthony D'Atri" <aad@xxxxxxxxxxxxxx>]

FYI: I/O limiting in combination with OpenStack 10/12 + Ceph doesn?t work properly. Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1476830

That's an OpenStack bug, nothing to do with Ceph.  Nothing stops you from using virsh to throttle directly:

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_tuning_and_optimization_guide/sect-virtualization_tuning_optimization_guide-blockio-techniques

https://github.com/cernceph/ceph-scripts/blob/master/tools/virsh-throttle-rbd.py

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