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[Xen-users] load detection and domU migration

To: xen-users@xxxxxxxxxxxxxxxxxxx, "James Miller" <jimm@xxxxxxxxxxxxxxx>
Subject: [Xen-users] load detection and domU migration
From: "Lamia M. Youseff" <lyouseff@xxxxxxxxxxx>
Date: Fri, 09 Jun 2006 11:16:36 -0700
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Hi James,

There is a tool called NWS (network weather service), that can not only measure but also predict cpu usage, network bandwidth and latency as well as other machine characteristics. This tool can help you make better informed decisions about when and where to migrate your domU. It is widely used in distributed systems, and it would be pretty simple to deploy it on Xen Dom0 and write a simple application to trigger migration based on the information the tool provides. The link to the tool is at http://nws.cs.ucsb.edu
Hope this helps,
Lamia Youseff


Message: 5
Date: Fri, 9 Jun 2006 11:55:40 -0500
From: "James Miller" <jimm@xxxxxxxxxxxxxxx>
Subject: [Xen-users] Load detection and domU migration
To: <xen-users@xxxxxxxxxxxxxxxxxxx>
Message-ID: <GJEGKFGLCCDAOOCGDAMMAEDJCBAA.jimm@xxxxxxxxxxxxxxx>
Content-Type: text/plain;       charset="iso-8859-1"

Is anyone aware of any tools to trigger a domU migration (live) based on
memory/cpu load?  It would need to monitor both Dom0 servers as well as all
DomUs to determine the best Dom0 server to migrate to.

I'm sure it wouldn't be too hard (famous last words) to write something up
which monitors the Dom0s and domUs using SNMP and MON but why re-invent the
wheel if a tool already exists ;)




Thanks,
Jim



James Miller - MCSE, CISSP
Sr Systems & Network Administrator
Simutronics Corp.
www.play.net
636.946.4263 x113




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