[ceph-users] Ceph versions not showing RGW

Hans van den Bogert hansbogert at gmail.com
Thu Nov 2 04:16:03 PDT 2017

Hi all,

During our upgrade from Jewel to Luminous I saw the following behaviour, if
my memory serves me right:

When upgrading for example monitors and OSDs, we saw that the `ceph
versions` command correctly showed at one that some OSDs were still on
Jewel (10.2.x) and some were already upgraded and thus showed a version of
All as expected -- however, for the RGWs, those only showed up until they
were upgraded to luminous. So the command gives a false sense of a complete
overview of the Ceph cluster, e.g., in my case this resulted that I forgot
about 4 out of 6 RGW instances which were still on Jewel.

What are the semantics of the `ceph versions` ? -- Was I wrong in expecting
that Jewel RGWs should show up there?


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