[Openstack] [OpenStack] How to speed up the instance launch time?

Balamurugan V G balamuruganvg at gmail.com
Wed Mar 6 16:27:25 UTC 2013


Yes it makes sense to have /var/lib/glance/images and
/var/lib/nova/instances/_base on the same network file system. But Quantum
network node being a bottle neck today, would the benefits be nullified by
a choked network?

Regards,
Balu

On Wed, Mar 6, 2013 at 9:42 PM, Mark Lehrer <mark at tpsit.com> wrote:

>
>  The change I made that helped the most was to disable NBD.  You have
>>>
>>
>> Was that to disable injection at startup?
>>
>
> No, NBD is just slow and unreliable for some reason.  Disabling it made
> my users happy.  I haven't had time to find out why NBD is so horrible.
>
> Eventually I would like to see /var/lib/glance/images and
> /var/lib/nova/instances/_base be on the same BTRFS file system and use
> reflink copies.
>
> Mark
>
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