[ovirt-users] Changing Cluster CPU Type in a single Host with Hosted Engine environment

[Ralf Braendli]

Hi

I Tried this change but I can’t find a Table cluster in the postgres Database.

Best Regarfs

Ralf

Am 26.05.2016 um 15:22 schrieb Martin Polednik <mpolednik at redhat.com<mailto:mpolednik at redhat.com>>:

On 26/05/16 13:01 +0000, Ralf Braendli wrote:
Hi

Thanks a lot for you help.
Just to be sure.
The Database would be the Datebase on the HostedEngine right ?

Right.

After this operation should it work directly or is a restart required ?

You should most likely restart the machine (to avoid hitting cached
values).

And for the Bug report this should be done here https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt ?

Yes (ovirt-engine, virt team).

Best Regards

Ralf Brändli

Am 26.05.2016 um 14:42 schrieb Martin Polednik <mpolednik at redhat.com<mailto:mpolednik at redhat.com>>:

On 26/05/16 07:12 +0000, Ralf Braendli wrote:
Hi

I have the Problem that I selected the wrong CPU Type throw the setup process.
Is it posible to change it without an new installation ?

Hi!

I'm afraid this may not be possible using "regular" approach. You
could do this by directly changing the cpu type in database, but this
is not supported operation.

Just an example what would I do in this case (but proceed carefully
before changing anything in the DB):

$ su - postgres -c "psql -t engine -c \"SELECT
split_part(trim(regexp_split_to_table(option_value, ';')), ':', 2)
FROM vdc_options WHERE option_name = 'ServerCPUList' AND version =
'3.5';\""

gives you a nice list of supported cpu names (the database name must
be exact, so it's better to paste from that list.

Intel Conroe Family
Intel Penryn Family
Intel Nehalem Family
Intel Westmere Family
Intel SandyBridge Family
Intel Haswell-noTSX Family
Intel Haswell Family
Intel Broadwell-noTSX Family
Intel Broadwell Family
AMD Opteron G1
AMD Opteron G2
AMD Opteron G3
AMD Opteron G4
AMD Opteron G5
IBM POWER8

Then you can update the cluster directly:

$ su - postgres -c "psql -t engine -c \"UPDATE cluster SET cpu_name =
'YOUR CPU NAME' WHERE name = 'YOUR CLUSTER NAME';\""

('YOUR CPU NAME' and 'YOUR CLUSTER NAME' must of course correspond to
the cpu name from the list above and the name of the cluster
respectively)

Also, could you open a bug on this? I think we should be able to do
change the CPU type without all this.

Thanks,
mpolednik

We have a single Host with a Hosted Engine installed.
With this installation I can’t put the Host into Maintenance Mode because the Hosted Engine will run on this Host.

The Version we us is 3.5.5-1

Best Regards

Ralf Brändli
_______________________________________________
Users mailing list
Users at ovirt.org<mailto:Users at ovirt.org>
http://lists.ovirt.org/mailman/listinfo/users

_______________________________________________
Users mailing list
Users at ovirt.org<mailto:Users at ovirt.org>
http://lists.ovirt.org/mailman/listinfo/users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20160528/5cc17ad1/attachment-0001.html>