If you're using cephadm or other container deployment scheme, upgrades shouldn't be affected. When using a traditional package-based install, there can be snags in the unlikely event of a system rebooting at exactly the wrong time. I personally prefer to keep mon/mgr services on dedicated, modest nodes, having experienced unexpected effects from mon restarts in the past. But with recent Ceph releases, the daemons are better-behaved and lots of people converge in just this way. If your nodes do not have extra RAM available for mon/MDS/etc, you might starve the OSDs a bit. MDS is not multithreaded so it benefits from high freq CPU and doesn't care about cores. Some people thus tie MDS to specifically-chosen systems.
On Aug 23, 2024, at 11:10 AM, Phong Tran Thanh <tranphong079@gmail.com> wrote:
This is my first time setting up a Ceph cluster for OpenStack. Will running both the Mon service and the OSD service on the same node affect maintenance or upgrades in the future? While running Mon, MDS, and OSD services on the same node does offer some benefits, could someone provide me with additional advice?
Vào Th 6, 23 thg 8, 2024 vào lúc 17:31 Bogdan Adrian Velica < vbogdan@gmail.com> đã viết:
Ah, for OpenStack.. Yeah I've seen setups like that so it should be fine...
On Fri, Aug 23, 2024 at 1:27 PM Bogdan Adrian Velica <vbogdan@gmail.com> wrote:
Hi,
MON servers typically don't consume a lot of resources, so it's fairly common to run MGR/MON daemons on the same machines as the OSDs in a cluster. Do you have any insights on the type of workload or data you plan to use with your Ceph cluster?
Thank you, Bogdan Velica croit.io
On Fri, Aug 23, 2024 at 12:05 PM Phong Tran Thanh <tranphong079@gmail.com> wrote:
Hi Ceph users
I am designing a CEPH system with 6 servers running full NVMe. Do I need to use 3 separate servers to run the MON services that communicate with OpenStack, or should I integrate the MON services into the OSD servers? What is the recommendation? Thank you.
-- Email: tranphong079@gmail.com Skype: tranphong079 _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
-- Trân trọng, ----------------------------------------------------------------------------
*Tran Thanh Phong*
Email: tranphong079@gmail.com Skype: tranphong079 _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io