No, this is not supported. You must follow the upgrade order for services. The reason is that many parts of RGW are implemented in the OSD themselves, so you can't run a new RGW against an old OSD. Paul -- Paul Emmerich Looking for help with your Ceph cluster? Contact us at https://croit.io croit GmbH Freseniusstr. 31h 81247 München www.croit.io Tel: +49 89 1896585 90 On Fri, Apr 3, 2020 at 4:15 PM Scheurer François <francois.scheurer@everyware.ch> wrote:
Dear All
One ceph cluster is running with all daemons (mon, mgr, osd, rgw) having the version 12.2.12.
Let's say we configure an additional radosgw instance with version 14.2.8, configured with the same ceph cluster name, realm, zonegroup and zone as the existing instances.
Is it dangerous to start a different version of rgw concurrently with the older rgw?
Can both versions server PUT & GET requests concurrently on the same buckets?
It is probably ok, because during an upgrade it is as well assumed to have temporarily different versions running concurrently... So the question is kind of the same as asking if one may cancel the radosgw upgrade from Luminous to Nautilus in the middle, rolling back the radosgw packages.
Many thanks in advance.
Cheers
Francois Scheurer
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