Hi All
after a long while being in health_err state (due to an unfound object,
which we eventually decided to "forget"), we are now planning to upgrade
our cluster which is running Pacific (at least on the mons/mdss/osds,
the gateways are by accident running quincy already). The installation
is via packages from ceph.com, unless it's quincy from ubuntu.
ceph versions:
"mon": {"ceph version 16.2.13
(5378749ba6be3a0868b51803968ee9cde4833a3e) pacific (stable)": 3},
"mgr": {"ceph version 16.2.13
(5378749ba6be3a0868b51803968ee9cde4833a3e) pacific (stable)": 3},
"osd": {"ceph version 16.2.13
(5378749ba6be3a0868b51803968ee9cde4833a3e) pacific (stable)": 252,
"ceph version 16.2.14 (238ba602515df21ea7ffc75c88db29f9e5ef12c9)
pacific (stable)": 12 },
"mds": { "ceph version 16.2.13
(5378749ba6be3a0868b51803968ee9cde4833a3e) pacific (stable)": 2 },
"rgw": {"ceph version 17.2.6
(d7ff0d10654d2280e08f1ab989c7cdf3064446a5) quincy (stable)": 8 },
"overall": {"ceph version 16.2.13
(5378749ba6be3a0868b51803968ee9cde4833a3e) pacific (stable)": 260,
"ceph version 16.2.14
(238ba602515df21ea7ffc75c88db29f9e5ef12c9) pacific (stable)": 12,
"ceph version 17.2.6 (d7ff0d10654d2280e08f1ab989c7cdf3064446a5)
quincy (stable)": 8 }
The OS on the mons and mdss are still ubuntu 18.04, the osds are a mix
of ubuntu 18 and ubuntu 20. The gateways are ubuntu 22.04, which is why
these are already on quincy.
The plan is to move to quincy and eventually cephadm/containered ceph,
since that is apparently "the way to go", though I have my doubts.
The steps we think are the right order are:
- reinstall the mons with ubuntu 22.04 + quincy
- reinstall the osds (same)
- reinstall the mdss (same)
Once this is up and running, we want to investigate and migrate to
cephadm orchestration.
Alternative appear to be: move to orchestration first and then upgrade
ceph to quincy (possibly skipping the ubuntu upgrade?)
Another alternative could be to upgrade to quincy on ubuntu 18.04 using
packages, but I haven't investigated the availability of quincy packages
for ubuntu 18.04 (which is out of free (LTS) support by canonical)
Cheers
/Simon
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