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RE: [Xen-devel] [XCP] Source for Workload Balancer?

To: 'David Erickson' <halcyon1981@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] [XCP] Source for Workload Balancer?
From: Dave Scott <Dave.Scott@xxxxxxxxxxxxx>
Date: Mon, 11 Jan 2010 17:43:25 +0000
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Thread-topic: [Xen-devel] [XCP] Source for Workload Balancer?
Hi,

The Workload Balancing windows service is not part of XCP but xapi does include 
an interface which allows it to talk to a 3rd party load-balancer. It would be 
possible to write one with your choice of policy and tools (eg. Linux+MySQL)

The interface code is mostly here:

http://xenbits.xen.org/xapi/xen-api.hg?file/650e531c3fe0/ocaml/xapi/workload_balancing.ml

Functions in this module are consulted on the various API entrypoints (eg 
VM.start) to determine where best to start VMs.

Cheers,
Dave 

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of David Erickson
> Sent: 07 January 2010 00:27
> To: xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-devel] [XCP] Source for Workload Balancer?
> 
> Hi I was wondering if the source and build instructions are available
> to all the components of the Workload Balancer?
> 
> I am also surprised at the curious choice of building it to require
> SQL Server and Windows, why not use free products like Linux and MySQL
> (or some variant)?
> 
> Thanks,
> David
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel

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