Re: [ovirt-users] the better way to update vdsm
Replying to my own mail since upgrading opportunities are not many.
Considering the procdure mentioned worked very well, it needs some
refinement.
On 24.09.2014 13:30, Daniel Helgenberger wrote:
Hello Nathanaël,
I think the supposed way to upgrade would be:
Here you need to insert:
# yum update engine-setup on the engine
(and for a new major version also new .repo files)
this is necessary since the engine-setup utility cannot upgrade itself
(though this might be doable; RFE? :)
* (hosted-engine only) put cluster in global maintenance if running
hosted-enfgine
* upgrade Engine using engine-setup (this *should* detect product updates)
* (hosted-engine only) disable global maintenance
* Put host in maintenance mode (witch will migrate VMs automatically)
This did not
work for the hosted engine VM for some reason; I migrated
it manually. Is this intentional?
* Click 'reinstall host' in Engine (this step will will
invoke yum update?)
* Activate host
continue with the other hosts
If there are kernel updates, I usually update them as well in the
process (involving manual yum).
Can anyone clarify if 'reinstall host' invokes yum? Thanks!
It will run yum
update; but only on oVirt packages. One might want to
run it again to update all other system packages. Again, this makes sense.
On 24.09.2014 11:41, Nathanaël Blanchet wrote:
> Hi all,
>
> I'm about to update to 3.4.4 with the associated vdsm. Updating vdsm with yum is
> trivial, but it usually breaks running vms on the host.
> So these are the steps I follow each time:
>
> * live migrating runnings vms to a another host in the cluster
> * putting the host in maintenance
> * updating vdsm
> * activating the host
> * getting back the vms
> * and so on with the other hosts...
>
> But sometimes it is not enough, I need to reinstall the host so as to the host
> be able to successfully activate.
>
> When getting back the vms on the initial host, I must do it manually to load
> balance vms between the hosts and this is not very convinient.
>
> So my question is : do I update in the right way, or is there any
> recommendations that I didn't find anyway?
>
> Thanks.
>
--
Daniel Helgenberger
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