On Thu, 22 Apr 2021 at 15:08, Donny Davis <donny@fortnebula.com> wrote:
FWIW I had some excellent startup times in Fort Nebula due to using local storage backed by nvme drives. Once the cloud image is copied to the hypervisor, startup's of the vms were usually measured in seconds.
Nova image pre-caching might be useful here: https://docs.openstack.org/nova/ussuri/admin/image-caching.html#image-pre-ca... Cheers, Ollie
Not sure if that fits the requirements, but sub 30 second startups were the norm. This time was including the actual connection from nodepool to the instance. So I imagine the local start time was even faster.
What is the requirement for startup times?
On Mon, Apr 19, 2021 at 9:31 AM Jeremy Stanley <fungi@yuggoth.org> wrote:
On 2021-04-19 16:31:24 +0530 (+0530), open infra wrote:
On Thu, Mar 25, 2021 at 8:38 PM Jeremy Stanley <fungi@yuggoth.org> wrote: [...]
The next best thing is basically what Nodepool[*] does: start new virtual machines ahead of time and keep them available in the tenant. This does of course mean you're occupying additional quota for whatever base "ready" capacity you've set for your various images/flavors, and that you need to be able to predict how many of what kinds of virtual machines you're going to need in advance.
Is it recommended to use nodepool in a production environment?
I can't begin to guess what you mean by "in a production environment," but it forms the lifecycle management basis for our production CI/CD system (as it does for many other Zuul installations). In the case of the deployment I help run, it's continuously connected to over a dozen production clouds, both public and private.
But anyway, I didn't say "use Nodepool." I suggested you look at "what Nodepool does" as a model for starting server instances in advance within the tenants/projects which regularly require instant access to new virtual machines. -- Jeremy Stanley
-- ~/DonnyD C: 805 814 6800 "No mission too difficult. No sacrifice too great. Duty First"