[openstack-dev] [nova][cinder] Schedule Instances according to Local disk based Volume?

Jay S. Bryant jsbryant at electronicjungle.net
Fri Sep 23 15:19:53 UTC 2016


Kevin,

This is functionality that has been requested in the past but has never 
been implemented.

The best way to proceed would likely be to propose a blueprint/spec for 
this and start working this through that.

-Jay


On 09/23/2016 02:51 AM, Zhenyu Zheng wrote:
> Hi Novaers and Cinders:
>
> Quite often application requirements would demand using locally 
> attached disks (or direct attached disks) for OpenStack compute 
> instances. One such example is running virtual hadoop clusters via 
> OpenStack.
>
> We can now achieve this by using BlockDeviceDriver as Cinder driver 
> and using AZ in Nova and Cinder, illustrated in[1], which is not very 
> feasible in large scale production deployment.
>
> Now that Nova is working on resource provider trying to build an 
> generic-resource-pool, is it possible to perform 
> "volume-based-scheduling" to build instances according to volume? As 
> this could be much easier to build instances like mentioned above.
>
> Or do we have any other ways of doing this?
>
> References:
> [1] 
> http://cloudgeekz.com/71/how-to-setup-openstack-to-use-local-disks-for-instances.html
>
> Thanks,
>
> Kevin Zheng
>
>
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