I’m sorry for the long post beforehand.
I’ve recently upgraded to 2.6 as a part of upgrading to the newest EKS version (Add Kubernetes 1.21 for Amazon EKS · Issue #33723 · rancher/rancher · GitHub), and I was experiencing severe problems with the Cluster Explorer as I’m no longer able to use the good old Cluster Manager.
The areas I have the most trouble with:
- Cluster Nodes view
- Deployment view
- Navigation tool
- Overall slowness
To go through point by point:
- Lost the ability to add a custom name
- Added labels are no longer displayed
Both of these makes it difficult to overview the nodes because with a Cloud Provider provisioning you will end up having cryptic names that tell you nothing. In the previous UI, you could have changed the logical names so that it remains overviewable across the whole system.
Additionally, the labels are extremely useful to see on the main node list view when you do use node selectors. I have no desire to go into each node and then check one-by-one what labels they have, scan through a bunch of auto-generated ones and find the few I care about.
- Lost the ability to quickly check status & logs
- Lost the ability to quickly scale deployments
- Pod restarts are no longer displayed
One feature that we have been using regularly is to open a workload, see if the containers are healthy and enter their logs directly from the list view. This now requires you to open each workload individually, wait for the system to wake up its slumber (usually 3-8s) and then be able to see the logs. However, if you wanted to see what each containers states are, now you have to go into each pod, then wait for another slumber to see anything.
While the logs and status checks are still possible, scaling a deployment is no longer a thing on the UI. I have to edit each workload and change the replicas count there instead of a quick + and - sign.
On the list view, the Pod Restarts are no longer displayed. While this is not the end of the world, it would be great if we could see them as a clear indication that something is not stable.
- Selection of a Project (or Namespace) no longer redirects to the Deployments/Apps view
- The selection often changes the sidebar
When using the new navigation tool, it’s nice for having more options, however, it no longer switches the views. If you are on the Deployments or Installed Apps view, it does it correctly, but if you trying to switch from a Workload detail or Pod detail view, then it just freaks out and does not navigate you back to the most common top-level section.
Another thing is that depending on what you filter for the sidebar options change. Like, when you select a Project or a Namespace the Cluster menu disappears, so I have no way to quickly go back to the top-level overview.
- Switching between views are taking 3-8s or more
- Entering detail views quickly load the header information, but you wait for 3-8s for any details
- Browser blocking loading
The most amount of time wasted for me on the new UI is that everything takes a lot of loading time, often without even displaying a loader to indicate that the app is not just frozen, but working on something. I consistently experience 3 or more seconds for each screen I switch.
Additionally, it seems that the loading of the data blocks the Browser to do anything, this makes Rancher look like it’s frozen and broken while it’s only just loading.
Cluster Nodes view
- Add the ability to custom name nodes, or at least display the description
- Show the custom labels added for each node, maybe make it toggleable
- Add the Pod Restarts to the displayed fields, maybe make it configurable
- Add the opening of the Workloads back to review Pod states quickly
- Add the quick scale buttons back
- Set the top-level options (Cluster Home, Project/Namespace) to always visible
- Add auto-navigate to the most common top-level element when changing the context
- Fix it. Set a rule that every page MUST load under 1 second
- Rancher I’m using is 2.6.0-rc9
- Rancher is deployed in AWS, on a c4.xlarge EC2 instance
- CPU usage is usually around 10% mark
- Memory usage is usually around 30% mark
- Deployed using Docker (version 20.10.8, build 3967b7d)
- Two clusters are hooked up with this Rancher
- EKS cluster in the same region (v1.21.2-eks-0389ca3)
- AKS cluster in the same city region-wise (v1.18.10)
- My internet bandwidth is 1000Mbit
- Mainly using Firefox 91.0.1 (64-bit)