Huang,
If you are willing to modify code, you might want to take a look at the code at
lp:~usc-isi/nova/hpc-trunk that has a scheduler (nova/scheduler/arch.py) that
does not allow creating new instances if cpu or other resources are used up. If
you have any question on the branch, please feel
Hi all,
In my setup of Cactus, I found Nova scheduler would place newly created
instance to a compute node that is already full occupied (in terms of memory
or # of virtual processors), which lead to swapping and VP overcommitting.
That would cause serious performance issue on a busy
Hi Huang:
You can use the simple scheduler, allocates new instances to hosts that have
the fewest instances currently running.
--scheduler_driver=nova.scheduler.simple.SimpleScheduler
More sophisticated schedulers are currently under active development, but they
haven't made it to the trunk
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