openstack team mailing list archive

[Lorin Hochstein <lorin@xxxxxxxxxxxxxxxxxx>]

Yuriy:


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'),
    ]




Take care,

Lorin
--
Lorin Hochstein
Lead Architect - Cloud Services
Nimbis Services, Inc.
www.nimbisservices.com

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