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Posted to dev@cloudstack.apache.org by Nguyen Anh Tu <ng...@gmail.com> on 2013/10/07 11:01:14 UTC
Autoscaling
Hi guys,
Do anyone try using AutoScaling with NetScaler device? I have no chance to
use, but having some questions:
- When a single VM having the same template and service offering with an
existing Autoscale group is started, is it automatically joined into that
group?
- Can users create two or more AutoScale groups using the same template?
- Where can I find some documents about NetScaler operation?
Thanks,
--
N.g.U.y.e.N.A.n.H.t.U
RE: Autoscaling
Posted by Nguyen Anh Tu <ng...@gmail.com>.
Got it. Thanks Sowmya.
Sent from my GT-N7000
On Oct 11, 2013 4:51 PM, "Sowmya Krishnan" <so...@citrix.com>
wrote:
> Answer inline...
>
> > -----Original Message-----
> > From: Nguyen Anh Tu [mailto:ng.tuna@gmail.com]
> > Sent: Friday, October 11, 2013 12:14 PM
> > To: dev@cloudstack.apache.org
> > Subject: Re: Autoscaling
> >
> > Dear Rajesh,
> >
> > Apologize for delay in response.
> >
> > You mean the netscaler api's used to create the autoscale functionality?
> > >
> >
> > Yes. And I just found a document about Netscaler config:
> > http://support.citrix.com/proddocs/topic/ns-system-10-map/ns-autoscale-
> > automatic-scaling-in-cloudplatform-env-wrapper-con.html
> > more info from:
> >
> http://support.citrix.com/servlet/KbServlet/download/30564-102-684000/NS-
> > CommandReference-Guide.pdf
> >
> > Also looking through Netscaler plugin implementation into ACS, I can
> understand
> > the operation.
> >
> > Btw, I'm confusing about this points:
> >
> > - When user change templateID in a AutoScale group, don't Netscaler call
> ACS to
> > destroy old VMs? Then, there are two type of VMs in that group: one with
> old
> > template and one with new template. Is it right?
> >
> When user changes template, Netscaler doesn't destroy VMs created with
> older template. VMs of both templates will co-exist in the autoscale group.
> Subsequent VMs that get created will use the new template. As long as the
> Scale down policy is not met, VMs won't be destroyed.
>
> > Thanks,
> > --
> >
> > N.g.U.y.e.N.A.n.H.t.U
>
RE: Autoscaling
Posted by Sowmya Krishnan <so...@citrix.com>.
Answer inline...
> -----Original Message-----
> From: Nguyen Anh Tu [mailto:ng.tuna@gmail.com]
> Sent: Friday, October 11, 2013 12:14 PM
> To: dev@cloudstack.apache.org
> Subject: Re: Autoscaling
>
> Dear Rajesh,
>
> Apologize for delay in response.
>
> You mean the netscaler api's used to create the autoscale functionality?
> >
>
> Yes. And I just found a document about Netscaler config:
> http://support.citrix.com/proddocs/topic/ns-system-10-map/ns-autoscale-
> automatic-scaling-in-cloudplatform-env-wrapper-con.html
> more info from:
> http://support.citrix.com/servlet/KbServlet/download/30564-102-684000/NS-
> CommandReference-Guide.pdf
>
> Also looking through Netscaler plugin implementation into ACS, I can understand
> the operation.
>
> Btw, I'm confusing about this points:
>
> - When user change templateID in a AutoScale group, don't Netscaler call ACS to
> destroy old VMs? Then, there are two type of VMs in that group: one with old
> template and one with new template. Is it right?
>
When user changes template, Netscaler doesn't destroy VMs created with older template. VMs of both templates will co-exist in the autoscale group. Subsequent VMs that get created will use the new template. As long as the Scale down policy is not met, VMs won't be destroyed.
> Thanks,
> --
>
> N.g.U.y.e.N.A.n.H.t.U
Re: Autoscaling
Posted by Nguyen Anh Tu <ng...@gmail.com>.
Dear Rajesh,
Apologize for delay in response.
You mean the netscaler api's used to create the autoscale functionality?
>
Yes. And I just found a document about Netscaler config:
http://support.citrix.com/proddocs/topic/ns-system-10-map/ns-autoscale-automatic-scaling-in-cloudplatform-env-wrapper-con.html
more info from:
http://support.citrix.com/servlet/KbServlet/download/30564-102-684000/NS-CommandReference-Guide.pdf
Also looking through Netscaler plugin implementation into ACS, I can
understand the operation.
Btw, I'm confusing about this points:
- When user change templateID in a AutoScale group, don't Netscaler call
ACS to destroy old VMs? Then, there are two type of VMs in that group: one
with old template and one with new template. Is it right?
Thanks,
--
N.g.U.y.e.N.A.n.H.t.U
RE: Autoscaling
Posted by Rajesh Battala <ra...@citrix.com>.
You mean the netscaler api's used to create the autoscale functionality?
-----Original Message-----
From: Nguyen Anh Tu [mailto:ng.tuna@gmail.com]
Sent: Monday, October 7, 2013 3:05 PM
To: dev@cloudstack.apache.org
Subject: Re: Autoscaling
2013/10/7 Rajesh Battala <ra...@citrix.com>
> No. VM won't join. deployVm api is called from NS and it will track
> the instances.
>
Okie, thanks Rajesh.
> You can get more info about Autoscale
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Autoscaling
>
I read this page before. I'm trying to understand NetScaler operation for re-simulating using HAProxy + Xapi RRDs instead. This page don't cover enough.
Thanks,
--
N.g.U.y.e.N.A.n.H.t.U
Re: Autoscaling
Posted by Nguyen Anh Tu <ng...@gmail.com>.
2013/10/7 Rajesh Battala <ra...@citrix.com>
> No. VM won't join. deployVm api is called from NS and it will track the
> instances.
>
Okie, thanks Rajesh.
> You can get more info about Autoscale
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Autoscaling
>
I read this page before. I'm trying to understand NetScaler operation for
re-simulating using HAProxy + Xapi RRDs instead. This page don't cover
enough.
Thanks,
--
N.g.U.y.e.N.A.n.H.t.U
RE: Autoscaling
Posted by Rajesh Battala <ra...@citrix.com>.
Hi Nguyen,
my comments are inline.
-----Original Message-----
From: Nguyen Anh Tu [mailto:ng.tuna@gmail.com]
Sent: Monday, October 7, 2013 2:31 PM
To: dev@cloudstack.apache.org
Subject: Autoscaling
Hi guys,
Do anyone try using AutoScaling with NetScaler device? I have no chance to use, but having some questions:
- When a single VM having the same template and service offering with an existing Autoscale group is started, is it automatically joined into that group?
No. VM won't join. deployVm api is called from NS and it will track the instances.
- Can users create two or more AutoScale groups using the same template?
Yes. We can create.
- Where can I find some documents about NetScaler operation?
You can get more info about Autoscale https://cwiki.apache.org/confluence/display/CLOUDSTACK/Autoscaling
Thanks,
--
N.g.U.y.e.N.A.n.H.t.U