Concept/idea - proactive state change notification from oVirt/RHEV

Justin Clift jclift at redhat.com
Wed Nov 7 13:22:54 UTC 2012


Just as an idea, oVirt/RHEV has hooks available that can be called
when instance states change (and for various other events).

Nicely, these hooks can be written in any language. (Python hooks
are definitely around)

So, how about the idea of us creating hooks which get installed on
oVirt/RHEV hosts, and proactively notify us (or deltacloud) when
instances change state.  So, we don't need to do polling.

Obviously it would have to be an optional approach, as it's an
intrusive measure for these hosts.  But it should allow for low
latency state change notification and better scalability, for
these places that need it.

Other provider types (ie vSphere?) might also have hooks too
(unsure).

Interesting idea?

+ Justin

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