Hi Goetz,
I've done the same, and went to Octopus and to Ubuntu. It worked like a
charm and with pip, you can get the pecan library working. I think I did it
with this:
yum -y install python36-six.noarch python36-PyYAML.x86_64
pip3 install pecan werkzeug cherrypy
Worked very well, until we got hit by this bug:
https://tracker.ceph.com/issues/53729#note-65
Nautilus seem not to have tooling to detect it, and the fix is not
backported to octopus.
And because our clusters started to act badly after the octopus upgrade,
and we fast forwarded to pacific (untested emergency cluster upgrades are
okayish but ugly :D ).
And because of the bug, we went another route with the last cluster.
I reinstalled all hosts with ubuntu 18.04, then update straight to pacific,
and then upgrade to ubuntu 20.04.
Hope that helped.
Cheers
Boris
Am Di., 1. Aug. 2023 um 20:06 Uhr schrieb Götz Reinicke <
goetz.reinicke(a)filmakademie.de>gt;:
Hi,
As I’v read and thought a lot about the migration as this is a bigger
project, I was wondering if anyone has done that already and might share
some notes or playbooks, because in all readings there where some parts
missing or miss understandable to me.
I do have some different approaches in mind, so may be you have some
suggestions or hints.
a) upgrade nautilus on centos 7 with the few missing features like
dashboard and prometheus. After that migrate one node after an other to
ubuntu 20.04 with octopus and than upgrade ceph to the recent stable
version.
b) migrate one node after an other to ubuntu 18.04 with nautilus and then
upgrade to octupus and after that to ubuntu 20.04.
or
c) upgrade one node after an other to ubuntu 20.04 with octopus and join
it to the cluster until all nodes are upgraded.
For test I tried c) with a mon node, but adding that to the cluster fails
with some failed state, still probing for the other mons. (I dont have the
right log at hand right now.)
So my questions are:
a) What would be the best (most stable) migration path and
b) is it in general possible to add a new octopus mon (not upgraded one)
to a nautilus cluster, where the other mons are still on nautilus?
I hope my thoughts and questions are understandable :)
Thanks for any hint and suggestion. Best . Götz
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