Open Stack

FYI. Concurrent calls are a problem all around in OpenStack!

Edgar

On 12/10/13 8:47 AM, "Abhishek Chanda" <abhishek at cloudscaling.com> wrote:

>** Changed in: nova
>       Status: New => Triaged
>
>-- 
>You received this bug notification because you are subscribed to
>neutron.
>https://bugs.launchpad.net/bugs/1257788
>
>Title:
>  nova-network doesn't handle large amount of concurrent booting
>  instances well
>
>Status in OpenStack Neutron (virtual network service):
>  Triaged
>Status in OpenStack Compute (Nova):
>  Triaged
>
>Bug description:
>  As seen by the large-ops test nova-network has trouble booting 150 VMs
>  concurrently. Part of the problem is that setting up the network for
>  each instance is relatively expensive with many locks and root-wrapped
>  calls. Both of which significantly hurt performance.  One possible fix
>  would be to do more bulk network operations when possible, so instead
>  of 100 separate calls to a root-wrapped tool call it once.
>
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