Hi, Thanks for the information. Will note it down for later.
Jeff On Mon, Feb 15, 2016 at 1:29 PM, Simon Weller <swel...@ena.com> wrote: > Jeff, > > The bridge naming format changed and to make the transition smoother, a > libvirt hook was used to rename the bridges within the libvirt config. > See the release notes for 4.3 and search for 'hook': > http://cloudstack-release-notes.readthedocs.org/en/4.3/rnotes.html > > - Si > ________________________________________ > From: Jeff Hair <j...@greenqloud.com> > Sent: Monday, February 15, 2016 3:45 AM > To: users@cloudstack.apache.org > Subject: Re: Upgrading from ACS 4.2 to 4.7 > > As a person also interested in eventually going from 4.2 to 4.7, can you > explain a little more about this libvirt hook? > > On Sun, Feb 14, 2016 at 7:17 PM, Simon Weller <swel...@ena.com> wrote: > > > Indra, > > > > I would strongly suggest you test the upgrade prior to doing it in your > > production environment. > > I would build a lab platform, even if it's virtualized so you can test > the > > process. 4.2 is very old and in my opinion, the most likely problems > you'll > > face will be related to database upgrades or a lesser known feature that > > has broken in some way. > > > > There were also some interface name changes that occurred around the 4.3 > > time frame, that requite a libvirt hook in order to address them. > > > > - Si > > > > > > ________________________________________ > > From: Indra Pramana <in...@sg.or.id> > > Sent: Sunday, February 7, 2016 2:28 AM > > To: users@cloudstack.apache.org > > Subject: Upgrading from ACS 4.2 to 4.7 > > > > Dear all, > > > > We are currently still using ACS 4.2.0 with KVM hypervisor hosts and Ceph > > RBD for primary storage. We are planning to upgrade all our management > and > > agent servers to ACS 4.7.0 (the latest stable version available on ACS > > website). > > > > > > > http://docs.cloudstack.apache.org/projects/cloudstack-release-notes/en/4.7.0/upgrade/upgrade-4.2.html > > > > Anyone has experience in performing the upgrade? Appreciate if anyone can > > share with me anything I need to take note during the upgrade. > > > > - SystemVM template update, is it straightforward or shall I expect any > > issues along the way? > > - We are running Ubuntu 12.04 for all our servers, while ACS 4.7 only > > specifically supports Ubuntu 14.04, can I upgrade to ACS 4.7 without > having > > to do "release-upgrade" Ubuntu from 12.04 to 14.04? > > - Since all the system VMs and virtual routers need to be restarted as > part > > of the upgrade, there will be downtime to users. Anyone can advise > roughly > > how long it will take for the whole upgrade process so that we can plan > > accordingly? > > - If the whole upgrade fails, can we revert back to the original version > > 4.2? Quite worried that it's not possible since systemVM template and > > database needs to be upgraded as part of the upgrade. > > > > Any other tips / tricks that I need to take note of during the upgrade? > We > > do not have any staging / test environment so it's very important for the > > upgrade to be successful. > > > > Any advice is greatly appreciated. > > > > Looking forward to your reply, thank you. > > > > Cheers. > > > > -ip- > > > > > > -- > *Jeff Hair* > Technical Lead and Software Developer > > Tel: (+354) 415 0200 > j...@greenqloud.com > www.greenqloud.com > -- *Jeff Hair* Technical Lead and Software Developer Tel: (+354) 415 0200 j...@greenqloud.com www.greenqloud.com
