| We run CEPH OSDs on the same hosts as QEMU/KVM with OpenStack. You need to segregate the processes so the OSDs have their dedicated cores and memory, other than that it works fine. Our MONs also run on the same hosts as the OpenStack controller nodes (L3 agents and such) - no problem here, you just need dedicated drives for their data.
Jan
Hi All,
So this may have been asked but I’ve googled the crap out of this so maybe my google-fu needs work. Does anyone have any experience running a Ceph cluster with the Ceph daemons (mons/osds/rgw) running on the same hosts as other services (so say
Docker containers, or really anything generating load). What has been your experience? Used cgroups or seen any reason too? Any performance issues? Troubleshooting a pain? Any other general observations?
Just curious if anyone out there has done it and to what scale and what issues they’ve encountered.
Cheers everyone
Kris Gillespie| System Engineer | bol.com
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