2:39 a.m.
On 28/04/15 16:20, Dan Yasny wrote:
HA does not mean multiple running instances of the same service. It
means
if the service is gone, it will automatically be restored on a working
server.
That is a pretty narrow definition of HA, which is not shared by
most parts of the community (and the world), leading to much confusion
of users on this very ML.
HA in general means your service downtime gets minimized, today mostly
realized through load balancing and clustering software services.
just restarting a service (in this case ovirt-engine vm) on a different
host is not what todays user expect under the term "HA" imho.
in theory it should be possible as a design goal to make multiple
ovirt-engine share one remote data base (remote database support is
already there).
I think this would be a huge feature for ovirt, but also requires quite
some design and coding to be done.
thus adding the devel list.
--
Mit freundlichen Grüßen / Regards
Sven Kieske
Systemadministrator
Mittwald CM Service GmbH & Co. KG
Königsberger Straße 6
32339 Espelkamp
T: +49-5772-293-100
F: +49-5772-293-333
https://www.mittwald.de
Geschäftsführer: Robert Meyer
St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen
Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen
6:17 p.m.
New subject: [ovirt-users] oVirt HA.
On 04/29/2015 10:39 AM, Sven Kieske wrote:
On 28/04/15 16:20, Dan Yasny wrote:
> HA does not mean multiple running instances of the same service. It means
> if the service is gone, it will automatically be restored on a working
> server.
That is a pretty narrow definition of HA, which is not shared by
most parts of the community (and the world), leading to much confusion
of users on this very ML.
HA in general means your service downtime gets minimized, today mostly
realized through load balancing and clustering software services.
just restarting a service (in this case ovirt-engine vm) on a different
host is not what todays user expect under the term "HA" imho.
in theory it should be possible as a design goal to make multiple
ovirt-engine share one remote data base (remote database support is
already there).
I think this would be a huge feature for ovirt, but also requires quite
some design and coding to be done.
thus adding the devel list.
Please open RFE with this and we can consider that for future versions.
--
Yaniv Dary
Technical Product Manager
Red Hat Israel Ltd.
34 Jerusalem Road
Building A, 4th floor
Ra'anana, Israel 4350109
Tel : +972 (9) 7692306
8272306
Email: ydary(a)redhat.com
IRC : ydary
6:31 p.m.
New subject: [ovirt-users] oVirt HA.
On 29-04-2015 20:17, Yaniv Dary wrote:
On 04/29/2015 10:39 AM, Sven Kieske wrote:
>
> On 28/04/15 16:20, Dan Yasny wrote:
>> HA does not mean multiple running instances of the same service. It
>> means
>> if the service is gone, it will automatically be restored on a working
>> server.
> That is a pretty narrow definition of HA, which is not shared by
> most parts of the community (and the world), leading to much confusion
> of users on this very ML.
>
> HA in general means your service downtime gets minimized, today mostly
> realized through load balancing and clustering software services.
>
> just restarting a service (in this case ovirt-engine vm) on a different
> host is not what todays user expect under the term "HA" imho.
>
> in theory it should be possible as a design goal to make multiple
> ovirt-engine share one remote data base (remote database support is
> already there).
>
> I think this would be a huge feature for ovirt, but also requires quite
> some design and coding to be done.
>
> thus adding the devel list.
>
Please open RFE with this and we can consider that for future versions.
See: http://www.ovirt.org/Features/Engine_High_Availability
Engine's PostgreSQL DB should also be replicated in a master-master fashion.
3294
days inactive
3294
days old
2 comments
3 participants
participants (3)
-
Christopher Pereira -
Sven Kieske -
Yaniv Dary