"T" == Tobias Moehle tobias.moehle@uni-rostock.de writes:
Hi Tobias,
T> Dear all, First of all I'd like to wish all T> developers/maintainers and users a happy new year and all the T> best.
thanks, our best wishes for the new year to you as well.
T> I know I am quite late with this topic, but other things T> distracted me so-far: I'd like to finally upgrade our cluster to T> 11.0.
T> According to the upgrade instructions T> (https://docs.qlustar.com/en-US/Qlustar_Cluster_OS/11.0/html-single/Release_N...) T> it is more or less an apt distupgrade; but since there are a lot T> of changes and I have very bad experience trying to upgrade T> merely ubuntu-versions (which usually breaks), I can't believe it T> is so simple?
It should be, as long as you follow the guide precisely. I didn't have problems while upgrading many customer clusters (otherwise they would have been solved by now anyway ;) ). Obviously we only install the minimum needed set of packages for a given cluster, so if you have pulled in many non-Qlustar related packages from base Ubuntu, you might run into problems on that side. But these should be rather minor and only concern the corresponding package(s).
T> So I'd like to ask whether it is really as simple and what your T> experiences are? Any caveats, things to keep in mind? Can I do it T> while calculations are running or should I rather wait for all of T> them to finish (we have run-times of months, therefore this is a T> thing in my case).
Better to wait for calculations to finish. All nodes will need a reboot anyway.
T> Any advice/comment is very welcome.
Best,
Roland