Hi,

I have a cluster running on Ubuntu Bionic, with stock Ubuntu Ceph packages. When upgrading, I always try to follow the procedure as documented here: https://docs.ceph.com/docs/master/install/upgrading-ceph/

However, the Ubuntu packages restart all daemons upon upgrade, per node. So if I upgrade the first node, it will restart mon, osds, rgw, and mds'es on that node, even though the rest of the cluster is running the old version.

I tried upgrading a single package, to see how that goes, but due to dependencies in dpkg, all other packages are upgraded as well.