Well, that project is interesting but they recreate a new scheduler from scratch, that is exactly what I'd like to avoid.
2014-04-14 15:26 GMT+02:00 Carlo Daffara <carlo.daff...@cloudweavers.eu>: > Then you may look into the Green Scheduler: > http://coned.utcluj.ro/GreenCloudScheduler/Documentation.html > and http://wiki.opennebula.org/ecosystem:green_cloud_scheduler > It's for 3.x, but most of the infrastructure is the same for 4.x; for > example, it uses the VM hooks to activate the java > component that starts or shutdowns the nodes. > cheers > carlo > > ----- Messaggio originale ----- > Da: "Marco Fanti" <marco.semprenom...@gmail.com> > A: "Carlo Daffara" <carlo.daff...@cloudweavers.eu> > Cc: "Users OpenNebula" <users@lists.opennebula.org> > Inviato: Lunedì, 14 aprile 2014 15:19:37 > Oggetto: Re: [one-users] How to interrogate the scheduler > > I know, but in my configuration I need that the unused hosts are shutted > down, so they are not usable from the scheduler. > What i need is: > before to instantiate or reschedule a VM, i check the scheduler, if the > best host selected from the scheduler is suitable to run the VM, then ok. > If the host is not suitable (e.g. the used_cpu is more than 80% and i don't > want it), then wake up one of the hosts that are in standby and repeat the > procedure. > > > 2014-04-14 15:07 GMT+02:00 Carlo Daffara <carlo.daff...@cloudweavers.eu>: > > > There is actually already a scheduler that does it, it uses the "packing > > policy": > > Packing Policy > > > > Target: Minimize the number of cluster nodes in use > > Heuristic: Pack the VMs in the cluster nodes to reduce VM > fragmentation > > Implementation: Use those nodes with more VMs running first > > > > RANK = RUNNING_VMS > > > > ( > http://archives.opennebula.org/documentation:rel4.4:schg#packing_policy) > > cheers, > > Carlo Daffara > > > > ----- Messaggio originale ----- > > Da: "Marco Fanti" <marco.fa...@studenti.polito.it> > > A: "Users OpenNebula" <users@lists.opennebula.org> > > Inviato: Lunedì, 14 aprile 2014 14:54:11 > > Oggetto: [one-users] How to interrogate the scheduler > > > > I'm writing a program that has to minimize the number of running hosts. > > > > I need to know, before that I command a VM reschedule or a template > > instantiation, if it is possible to ask to the scheduler which will be > the > > selected host. > > > > Kind regards, > > Marco Fanti > > > > _______________________________________________ > > Users mailing list > > Users@lists.opennebula.org > > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > > _______________________________________________ > > Users mailing list > > Users@lists.opennebula.org > > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > > >
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