On 05/03/2012 12:05 PM, Lorin Hochstein wrote:
On May 3, 2012, at 4:46 AM, Yuriy Taraday wrote:
Just note that since Essex release Nova by default use fill-first cost
function, meaning that nodes with less free RAM will be preferred for
new instances.
Kind regards, Yuriy.
I thought the default behavior in essex was spread-first:
From:
https://github.com/openstack/nova/blob/stable/essex/nova/scheduler/least_cost.py#L41
cfg.FloatOpt('compute_fill_first_cost_fn_weight',
default=-1.0,
help='How much weight to give the fill-first cost function. '
'A negative value will reverse behavior: '
'e.g. spread-first'),
]
Hi Lorin!
The behaviour actually changed late in Essex:
https://github.com/openstack/nova/commit/d4d081ad4cb028f9f9d389e0d7d4af3873c94cb6
Best,
-jay
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