I was delighted to see the native Debian 12 (bookworm) packages turn up
in Reef 18.2.1.
We currently run a number of ceph clusters on Debian11 (bullseye) /
Quincy 17.2.7. These are not cephadm-managed.
I have attempted to upgrade a test cluster, and it is not going well.
Quincy only supports bullseye, and Reef only supports bookworm, we are
reinstalling from bare metal. However I don't think either of these two
problems are related to that.
Problem 1
--------------
A simple "apt install ceph" goes most of the way, then errors with
Setting up cephadm (18.2.1-1~bpo12+1) ...
usermod: unlocking the user's password would result in a passwordless
account.
You should set a password with usermod -p to unlock this user's password.
mkdir: cannot create directory ‘/home/cephadm/.ssh’: No such file or
directory
dpkg: error processing package cephadm (--configure):
installed cephadm package post-installation script subprocess returned
error exit status 1
dpkg: dependency problems prevent configuration of ceph-mgr-cephadm:
ceph-mgr-cephadm depends on cephadm; however:
Package cephadm is not configured yet.
dpkg: error processing package ceph-mgr-cephadm (--configure):
dependency problems - leaving unconfigured
The two cephadm-related packages are then left in an error state, which
apt tries to continue each time it is run.
The cephadm user has a login directory of /nonexistent, however the
cephadm --configure script is trying to use /home/cephadm (as it was on
Quincy/bullseye).
So, we aren't using cephadm, and decided to keep going as the other
packages were actually installed, and deal with the package state later.
Problem 2
---------------
I upgraded 2/3 monitor nodes without any other problems, and (for the
moment) removed the other Quincy monitor prior to rebuild.
I then shutdown the remaining Quincy manager, and attempted to start the
Reef manager. Although the manager is running, "ceph mgr services" shows
it is only providing the restful and not the dashboard service. The log
file has lots of the following error:
ImportError: PyO3 modules may only be initialized once per interpreter
process
and ceph -s reports "Module 'dashboard' has failed dependency: PyO3
modules may only be initialized once per interpreter process
Questions
---------------
1. Have the Reef/bookworm packages ever been tested in a non-cephadm
environment?
2. I want to revert this cluster back to a fully functional state. I
cannot bring back up the remaining Quincy monitor though ("require
release 18 > 17"). Would I have to go through the procedure of starting
over, and trying to rescue the monmap from the OSDs? (OSDs and an active
MDS are still up and running Quincy). I'm aware that process exists but
have never had to delve into it.
Thanks, Chris
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