Hi, you're correct, the option doesn't exist in older clusters (I only checked one Reef and one Squid version < 19.2.6). I assume it's recommended to perform a staggered upgrade [0], and before you upgrade the RGWs, you set the config option. I guess that could have been made a bit clearer in the docs. The staggered upgrade works in this test cluster (I don't have multisite enabled): reef1:~ # ceph orch upgrade start --image quay.io/ceph/ceph:v19.2.6 --daemon-types mgr,mon,crash,osd,mds wait a bit... reef1:~ # ceph versions { "mon": { "ceph version 19.2.6 (f9fd95b4335bad6a26d7a74468f55d269e8dbef4) squid (stable)": 3 }, "mgr": { "ceph version 19.2.6 (f9fd95b4335bad6a26d7a74468f55d269e8dbef4) squid (stable)": 2 }, "osd": { "ceph version 19.2.6 (f9fd95b4335bad6a26d7a74468f55d269e8dbef4) squid (stable)": 5 }, "rgw": { "ceph version 18.2.7 (6b0e988052ec84cf2d4a54ff9bbbc5e720b621ad) reef (stable)": 2 }, "overall": { "ceph version 18.2.7 (6b0e988052ec84cf2d4a54ff9bbbc5e720b621ad) reef (stable)": 2, "ceph version 19.2.6 (f9fd95b4335bad6a26d7a74468f55d269e8dbef4) squid (stable)": 10 } } reef1:~ # ceph config set client.rgw rgw_sigv4_insecure true reef1:~ # reef1:~ # ceph orch upgrade start --image quay.io/ceph/ceph:v19.2.6 --daemon-types rgw And then upgrade the rest (omit daemon-types). Hope this helps! Eugen [0] https://docs.ceph.com/en/latest/cephadm/upgrade/#staggered-upgrade Zitat von Matthew Vernon <ceph-users@ceph.io>:
Hi,
On 19/08/2026 17:09, Patrick Donnelly wrote:
If you are running multisite, you must set the ``rgw_sigv4_insecure`` option to true before you begin to upgrade. After all clusters are upgraded, set the option to ``false`` again.
Stupid question - how/where does one set this, and will this be understood by older versions of Ceph?
I ask because I have a Reef multisite setup, which should be supported to upgrade to Tentacle. Which I fear I'm now going to have to do in a hurry!
AFAICT this is a new config setting, so I'd expect older versions of Ceph won't understand it... [and searching the reef docs doesn't find it]
Thanks,
Matthew _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io