If I remember correctly, we see similar issues on VMware. Marcus, have you seen similar behavior on VMware? I think I remember us having to manually vMotion a lot of VMs very often...
*Will Stevens* Chief Technology Officer c 514.826.0190 <https://goo.gl/NYZ8KK> On Thu, Sep 6, 2018 at 2:34 PM Pierre-Luc Dion <pd...@cloudops.com> wrote: > Hi, > > I'm working with a University in Montreal and we are looking at working > together to improve the deployment planner. Mainly for post VM.CREATE > tasks. > Because what we observed with cloudstack, in our case with XenServer, > overtime, a cluster will become unbalanced in therm of workload, vm HA will > move VMs all over the the cluster which cause hotspot inside a cluster. > Also, when performing maintenance xenmotion of VM spread them in the > cluster but does not consider host usage and at the end of a maintenance it > require manual operation to repopulate VMs on the last host updated. OS > preference not taken into account except for VM.CREATE. > > So, > I'd like to work on improving VMs dispersion during and post outage and > maintenances. when a cluster resources are added or removed. > > Would you have any more requirement, we will document a feature spec in the > wiki which I believe it's still a requirement ? > > Does using KVM have similar issues over time? > > I don't think it would make sense to cloudstack to automatically take > decision on moving VMs but for now create report of recommended action to > do and provide steps to do them. tbd. > > Cheers, > > PL >
