My guess is that the system reservation change was very welcome for me as well.
Note that a service as AKS also draws in new customers that may not yet have years of Kubernetes experience. I'm one of those for example, and I created an AKS cluster so we could deploy short-lived environments for branches of our product. We're using GitLab and the 'Review Apps' integration with Kubernetes.
The instability experienced by the author of this article is something I experienced as well, and I have spent a lot of time draining, rebooting, and scaling nodes to try and find out what is happening. I would not have been able to guess the absence of resource limits could possibly kill a node.
Fortunately these instabilities disappeared a couple of weeks ago after a redeployment of the AKS instance, and it has been stable ever since. I guess the system reservation change was included there? From my perspective that was also the moment AKS truly started feeling like a GA product.
Note that a service as AKS also draws in new customers that may not yet have years of Kubernetes experience. I'm one of those for example, and I created an AKS cluster so we could deploy short-lived environments for branches of our product. We're using GitLab and the 'Review Apps' integration with Kubernetes.
The instability experienced by the author of this article is something I experienced as well, and I have spent a lot of time draining, rebooting, and scaling nodes to try and find out what is happening. I would not have been able to guess the absence of resource limits could possibly kill a node.
Fortunately these instabilities disappeared a couple of weeks ago after a redeployment of the AKS instance, and it has been stable ever since. I guess the system reservation change was included there? From my perspective that was also the moment AKS truly started feeling like a GA product.