Re: [ovirt-users] InClusterUpgrade Scheduling Policy

Actually, I figured out a work around. I changed the HostedEngine VM's vds_group_id in the database to the vds_group_id of my temporary cluster (found from the vds_groups table). This worked and I could put my main cluster in upgrade mode. Now to continue the process...

Thanks, Scott On Fri, Jun 24, 2016, 9:29 AM Scott <romracer(a)gmail.com&gt; wrote: > > Hi Roman, > > I made it through step 6 however it does look like the problem you > mentioned has occurred. My engine VM is running on my host in the temporary > cluster. The stats under Hosts show this. But in the Virtual Machines tab > this VM still thinks its on my main cluster and I can't change that setting. > Did you have a suggestion on how to work around this? Thankfully only one > of my RHEV instances has this upgrade path. > > Thanks for your help, > Scott > > On Fri, Jun 24, 2016 at 2:15 AM Roman Mohr <rmohr(a)redhat.com&gt; wrote: >> >> On Thu, Jun 23, 2016 at 10:26 PM, Scott <romracer(a)gmail.com&gt; wrote: >> > Hi Roman, >> > >> > Thanks for the detailed steps. I follow the idea you have outlined and >> > I >> > think its easier than what I thought of (moving my self hosted engine >> > back >> > to physical hardware, upgrading and moving it back to self hosted). I >> > will >> > give it a spin in my build RHEV cluster tomorrow and let you know how I >> > get >> > on. >> > >> >> Thanks. >> >> The bug is here: https://bugzilla.redhat.com/show_bug.cgi?id=1349745. >> >> I thought about the solution and I see one possible problem with this >> approach. It might be that the engine still thinks that the VM is on >> the old cluster. >> Let me know if this happens, we can work around that too. >> >> Roman >> >> > Thanks again, >> > Scott >> > >> > On Thu, Jun 23, 2016 at 2:41 PM Roman Mohr <rmohr(a)redhat.com&gt; wrote: >> >> >> >> Hi Scott, >> >> >> >> On Thu, Jun 23, 2016 at 8:54 PM, Scott <romracer(a)gmail.com&gt; wrote: >> >> > Hello list, >> >> > >> >> > I'm trying to upgrade a self-hosted engine RHEV environment running >> >> > 3.5/el6 >> >> > to 3.6/el7. I'm following the process outlined in these two >> >> > documents: >> >> > >> >> > >> >> > >> >> > https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtuali... >> >> > https://access.redhat.com/solutions/2300331 >> >> > >> >> > The problem I'm having is I don't seem to be able to apply the >> >> > "InClusterUpgrade" policy (procedure 5.5, step 4). I get the >> >> > following >> >> > error: >> >> > >> >> > Can not start cluster upgrade mode, see below for details: >> >> > VM HostedEngine with id 5ca9cb38-82e5-4eea-8ff6-e2bc33598211 is >> >> > configured >> >> > to be not migratable. >> >> > >> >> That is correct, only the he-agents on each host decide where the >> >> hosted engine VM can start >> >> >> >> > But the HostedEngine VM is not one I can edit due to being >> >> > mid-upgrade. >> >> > And >> >> > even if I could, the setting its complaining about can't be managed >> >> > by >> >> > the >> >> > engine (I tried in another RHEV instance). >> >> > >> >> Also true, it is very limited what you can currently do with the >> >> hosted engine VM. >> >> >> >> >> >> > Is this a bug? What am I missing to be able to move on? As it >> >> > seems >> >> > now, >> >> > the InClusterUpgrade scheduling policy is useless and can't actually >> >> > be >> >> > used. >> >> >> >> That is indeed something the InClusterUpgrade does not take into >> >> consideration. I will file a bug report. >> >> >> >> But what you can do is the following: >> >> >> >> You can create a temporary cluster, move one host and the hosted >> >> engine VM there, upgrade all hosts and then start the hosted-engine VM >> >> in the original cluster again. >> >> >> >> The detailed steps are: >> >> >> >> 1) Enter the global maintenance mode >> >> 2) Create a temporary cluster >> >> 3) Put one of the hosted engine hosts which does not currently host >> >> the engine into maintenance >> >> 4) Move this host to the temporary cluster >> >> 5) Stop the hosted-engine-vm with `hosted-engine --destroy-vm` (it >> >> should not come up again since you are in maintenance mode) >> >> 6) Start the hosted-egine-vm with `hosted-engine --start-vm` on the >> >> host in the temporary cluster >> >> 7) Now you can enable the InClusterUpgrade policy on your main cluster >> >> 7) Proceed with your main cluster like described in >> >> >> >> >> >> https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtuali... >> >> 8) When all hosts are upgraded and InClusterUpgrade policy is disabled >> >> again, move the hosted-engine-vm back to the original cluster >> >> 9) Upgrade the last host >> >> 10) Migrate the last host back >> >> 11) Delete the temporary cluster >> >> 12) Deactivate maintenance mode >> >> >> >> Adding Sandro and Roy to keep me honest. >> >> >> >> Roman >> >> >> >> > >> >> > Thanks for any suggestions/help, >> >> > Scott >> >> > >> >> > _______________________________________________ >> >> > Users mailing list >> >> > Users(a)ovirt.org >> >> > http://lists.ovirt.org/mailman/listinfo/users >> >> >