[ovirt-users] oVirt 3.5 : "Power Management Health Check" - feature pages

[Yair Zaslavsky]

----- Original Message -----
> From: "Gilad Chaplik" <gchaplik at redhat.com>
> To: "Yair Zaslavsky" <yzaslavs at redhat.com>
> Cc: "Arthur Berezin" <aberezin at redhat.com>, "users" <users at ovirt.org>
> Sent: Monday, May 5, 2014 10:57:01 AM
> Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health Check" - feature	pages
> 
> ----- Original Message -----
> > From: "Yair Zaslavsky" <yzaslavs at redhat.com>
> > To: "Arthur Berezin" <aberezin at redhat.com>
> > Cc: "Gilad Chaplik" <gchaplik at redhat.com>, "users" <users at ovirt.org>
> > Sent: Monday, May 5, 2014 6:39:02 AM
> > Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health Check" -
> > feature	pages
> > 
> > 
> > 
> > ----- Original Message -----
> > > From: "Arthur Berezin" <aberezin at redhat.com>
> > > To: "Gilad Chaplik" <gchaplik at redhat.com>
> > > Cc: "users" <users at ovirt.org>
> > > Sent: Sunday, May 4, 2014 5:35:59 PM
> > > Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health Check" -
> > > feature	pages
> > > 
> > > In this case engine periodically checks health of hosts' power management
> > > as
> > > HA relies on it.
> > > 
> > > Arthur
> > > 
> > > ----- Original Message -----
> > > 
> > > > From: "Gilad Chaplik" <gchaplik at redhat.com>
> > > > To: "Eli Mesika" <emesika at redhat.com>
> > > > Cc: "users" <users at ovirt.org>, "Arthur Berezin" <aberezin at redhat.com>
> > > > Sent: Sunday, May 4, 2014 5:26:45 PM
> > > > Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health Check"
> > > > -
> > > > feature pages
> > > 
> > > > Hi Eli,
> > > 
> > > > Here is my comment :)
> > > > Why engine needs to send the status health check, isn't there any 3rd
> > > > parties
> > > > that does it, that we can integrate with?
> > > > If found, it probably has /less (known) bugs/more features/ and it's
> > > > already
> > > > written, tested, documented, allows further integration and probably
> > > > deals
> > > > with scale.
> > > 
> > > > btw, fixed some typos in your pages :-)
> > > 
> > > > Thanks,
> > > > Gilad.
> > 
> > Hi, what 3rd party for example do you refer to?
> > The PM code already exists at engine,
> > And you're also using quartz for scheduling.
> > 
> 
> Yair,
> 
> You're are raising some good points, but imo the entire host monitoring (inc
> getVdsStats, etc.) should be externalized.
> There are 2 major issues that we still don't cover:
> - No HA for monitoring, who checks the hosts when the engine is down.
> - No scale - the engine is a bottle-neck in network and compute.
> Although the above is a huge arch change, we need to start somewhere, this
> feature sounds like a candidate to introduce it.
> 
> About the examples:
> http://sixrevisions.com/tools/10-free-server-network-monitoring-tools-that-kick-ass/
> The main goal of the feature if my suggestion is taken, is to select to most
> appropriate one.
> 
> Thanks,
> Gilad.


Well, Nagios is being considered to be used or used by Gluster guys.
However, it will still require (AFAIK) to code some nagios plugin to perfrom the health check.
In addition, you will have to report somehow the state change to engine.
IMHO, this a bit of an overkill (look also at the time that the check is run - once in an hour, so it can't be compared to getVmStats).


> 
> > 
> > > 
> > > > ----- Original Message -----
> > > > > From: "Eli Mesika" <emesika at redhat.com>
> > > > > To: "users" <users at ovirt.org>
> > > > > Cc: "Arthur Berezin" <aberezin at redhat.com>
> > > > > Sent: Sunday, May 4, 2014 12:18:47 PM
> > > > > Subject: [ovirt-users] oVirt 3.5 : "Power Management Health Check" -
> > > > > feature pages
> > > > >
> > > > > Hi
> > > > >
> > > > > The following wiki pages were added to the "Power Management Health
> > > > > Check"
> > > > > feature planned for oVirt 3.5
> > > > >
> > > > > http://www.ovirt.org/Features/PMHealthCheck
> > > > > http://www.ovirt.org/Features/Design/DetailedPMHealthCheck
> > > > >
> > > > > Your comments/questions are mostly welcomed.
> > > > >
> > > > > Thanks
> > > > > Eli Mesika
> > > > > _______________________________________________
> > > > > Users mailing list
> > > > > Users at ovirt.org
> > > > > http://lists.ovirt.org/mailman/listinfo/users
> > > > >
> > > 
> > > _______________________________________________
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> > > Users at ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/users
> > > 
> > 
>