Ceph

Starting on approximately March 3rd, the Rook daily CI running against Ceph main started failing.

The mgr daemon gets an error when Rook attempts to get the status from the mgr's admin socket:

1. ceph --admin-daemon /run/ceph/ceph-mgr.a.asok status
   no valid command found; 10 closest matches:
   0
   1
   2
   abort
   assert
   config diff
   config diff get <var>
   config get <var>
   config help [<var>]
   config set <var> <val>...
   admin_socket: invalid command
   [root@rook-ceph-mgr-a-f4d7bfb5b-sjz8w ceph]# echo $?
   22

This status command had been working for many years, and just now stopped working in Ceph main.
The same status command works fine in the mon daemon pod from ceph main.
This failure has not yet been seen in other branches.

This is a blocker for Rook running against main.
This does not block development efforts or any releases,
but it is a clear blocker for the release of Tentacle,
and also could mask if there are any other issues blocking Rook in Ceph main.

See Rook issue https://github.com/rook/rook/issues/15509