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[Xen-users] XCP oddity number 2, XCCS load balancer

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Subject: [Xen-users] XCP oddity number 2, XCCS load balancer
From: Vern Burke <vburke@xxxxxxxx>
Date: 2010年8月03日 21:45:59 -0400
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XCP 0.5.0 again, I don't think this really counts as a bug, but it does seem to be a change in behavior (undocumented as far as I can tell) from 0.1.1. When migrating VMs between 2 hosts, 0.5.0 seems to be rather pokey about settling out the memory changes. Since the XCCS load balancer runs up to 5 rebalance passes every time it's called, the load balancer may run the second pass before the hosts are settled out from the first. This means that passes 2-5 may produce less than accurate results in balance.
I'll adding a slight delay to each load balancer pass for the 0.5.1 release.
--
Vern Burke
SwiftWater Telecom
http://www.swiftwatertel.com
Xen Cloud Control System
http://www.xencloudcontrol.com
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