FYI you can also set the balancer mode to crush-compat, this way even if
the balancer is re enabled for any reason error messages will not occurs.
https://docs.ceph.com/en/pacific/rados/operations/balancer/
On Thu, Dec 12, 2024, 15:28 Janne Johansson wrote:
> I have clusters that have been upgr
I have clusters that have been upgraded into "upmap"-capable releases,
but in those cases, it was never in upmap mode, since these clusters
would also have jewel-clients as lowest possible, so if you tried to
enable balancer in upmap mode it would tell me to first bump clients
to luminous at least,
As you discovered, it looks like there are no upmap items in your
cluster right now. The `ceph osd dump` command will list them, in JSON
as you show, or you can `grep ^pg_upmap` without JSON as well (same
output, different format).
I think the balancer would have been enabled by default in Nau
