On 07/05/2017 04:18 AM, Eddie Yen wrote:
Hi everyone,
I'm using OpenStack Mitaka (which deployed from Fuel 9.2) and doing GPU
things.
I got a problem is I need to delete current instance which contains GPU
to release device if I want assign GPU to another new instance temperately.
I'll got "No valid host was found" if I creating new instance contains
GPU flavor without delete present instance, even the instance is shutdown.
Is there any way that I just shutdown the instance rather than delete it
to release GPU device?
As Dinesh mentioned you *can* use shelve for this, but frankly, I think
the shelve API leads to more problems than it solves (see his response
about needing to delete the new instance before unshelving).
I'd recommend redesigning your application to be more cloud-native. In
other words, separate operating system state from application state, use
volumes for all persistent application state, and do not rely on a
persistent IP address. [1]
Once you've done that, you can just treat your VMs like cattle and
terminate them.
Best,
-jay
[1] Please note I did not use the word "container" in this description
of cloud-native application.
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