Hi all, still #1 has not been answered :) but I would suggest to look at this link which has lots of info and will answer your questions below.
https://wiki.openstack.org/wiki/ReleaseNotes/Juno <https://wiki.openstack.org/wiki/ReleaseNotes/Juno> Remo > On Aug 18, 2015, at 05:45, Chris <cont...@progbau.de> wrote: > > Hello, > > 1) We have in total 4 separate clouds who need the upgrade with each > more than 100 compute nodes. We just use the basic services like nova, > keystone, neutron, glance and horizon. No Cinder, heat, trove etc. > Our network setup is flat provider network, which means we don’t use the > neutron router. All in all the from the openstack service perspective a > minimal setup. > 2) One of our cloud is set up as HA with two management nodes (keystone, > nova, horizon, glance) behind a haproxy. It’s not a big deal to have the same > setup implemented in all clouds if it’s helpful for the upgrade > 3) We don’t think about upgrading from Centos 6 to 7. Instead build new > Centos 7 compute nodes and move the VMs with live migration (is it a good > idea?) > 4) What does it affect? Let’s say we set up a second management node wit > Centos 7 and the openstack Juno/Kilo services will it work against the Centos > 6/Icehouse compute nodes and the Icehouse DB schema? > > Thanks in advance! > > Cheers, > Chris > > From: Remo Mattei [mailto:r...@italy1.com <mailto:r...@italy1.com>] > Sent: Monday, August 17, 2015 19:54 > To: Chris <cont...@progbau.de <mailto:cont...@progbau.de>> > Cc: openstack@lists.openstack.org <mailto:openstack@lists.openstack.org>; > Mark Hollow <m...@markhollow.com <mailto:m...@markhollow.com>>; Soputhi Sea > <pu...@live.com <mailto:pu...@live.com>> > Subject: Re: [Openstack] OpenStack upgrade Icehouse Centos 6 best practice > > Well this can be very time consuming but first thing first > 1) how is your installation done? > 2) is this an HA env? > 3) chaining from 6.x to 7 is good but may not play well > 4) database schema changed from Icehouse to Juno so keep that in mind. > > Then you can start thinking on the upgrades. I know some of my coworker had > hard time to upgrade. Recommended is rebuild / migrate. > > Ciao > Remo >> On Aug 17, 2015, at 12:53, Chris <cont...@progbau.de >> <mailto:cont...@progbau.de>> wrote: >> >> Hello, >> >> We currently plan to upgrade our Openstack setup from Icehouse to Juno or >> even Kilo. This also includes a version upgrade on the host based OS from >> Centos 6.6 to 7.x >> I have some questions regarding the upgrade an hope to learn from your >> experience. >> >> First question is, is there a Openstack version compatibility guaranteed >> within the different releases? The idea behind it to upgrade the different >> services (compute nodes / management nodes) in separate phases. >> Second, is the live-migration with block-migrate feature compatible between >> versions. One upgrade solution we currently playing with is to move existing >> VMs with live-migration & block-migrate (no shared storage) to fresh >> installed Centos 7 Kilo compute nodes. >> >> Any best practice tips highly appreciated! >> >> Cheers, >> Chris >> >> >> >> >> _______________________________________________ >> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack> >> Post to : openstack@lists.openstack.org >> <mailto:openstack@lists.openstack.org> >> Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> <http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack> >> >> >> !DSPAM:1,55d1bf33255572126019201! > > > !DSPAM:1,55d2ac04104691467697610!
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