Hi Chiradeep,
The monitoring service seems to be collecting statistics using polling
and
triggers actions during threshold breach. This seems to be very
tasking.
Can it be designed to listen for events on threshold breach as well?
For ex. a configuration "response timeout > 30 ms" on a VIP can be
sent to LB appliance, the LB appliance can intimate the Monitoring
service
when the threshold breach has happened. Basically offloading the
responsibility.
Thanks,
Vijay V.
> -----Original Message-----
> From: Chiradeep Vittal [mailto:chiradeep.vit...@citrix.com]
> Sent: Tuesday, November 26, 2013 8:07 AM
> To: dev@cloudstack.apache.org
> Subject: Re: [Discuss] AutoScaling.next in CloudStack
>
> Hi Tuna,
>
> I boldly diagrammed out what we talked about here:
>
> https://cwiki.apache.org/confluence/x/M6YTAg
>
> The idea is to keep the monitoring part separate from the autoscale decision.
> So, the monitoring can be SNMP/RRD/whatever.
>
> Scale-up using reconfiguration then becomes a mere matter of modifying the
> autoscale service.
>
>
> On 11/25/13 8:57 AM, "tuna" <ng.t...@gmail.com> wrote:
>
> >Hi guys,
> >
> >At CCCEU13 I talked about the AutoScale without NetScaler feature
> >working with XenServer & XCP. For anyone don¹t know about this feature,
> >take a look into my slide here:
> >http://www.slideshare.net/tuna20073882/autoscale-without-
> netscalerccceu13.
> >
> >Chiradeep and I had a short talk after the presentation about how to
> >improve the AutoScale feature in future. We agreed that:
> >
> >+ Need to remove Load Balancing feature from AutoScaling. That¹s very
> >simple to do.
> >+ Need to use SNMP for monitoring not only instance-level but also
> >application-level.
> >+ Also, supporting well KVM hypervisor
> >
> >So, I blow up this thread for all of you guys to discuss the way we
> >design that feature, such as:
> >+ technical side, how to integrate effectively SNMP into CLoudStack.
> >Where do we put SNMP monitor components into infrastructure? etc
> >+ user experience, how user configure that feature with SNMP monitoring.
> >I image that user can figure out they need AutoScale for which of
> >following items: application, protocol (tcp, udp), port, bandwidth,
> >disk, cpu and memory also, etc
> >+ How about autoscale action, not just only deploy or destroy VM, we
> >+ need
> >maybe dynamically increase-decrease memory/cpu, nic bandwidth, disk,Š
> >
> >Personally, we should think about a completely autoscaling feature.
> >
> >Cheers,
> >
> >‹Tuna
