How many apps are on that Web App Plan (assuming it is a premium plan)? If more than one, I believe this will impact the total memory assignment for each app, outside the default so that's is something to keep in mind - you may want to create a new app plan if that is the case.
You're right to use the app setting WEBSITE_MEMORY_LIMIT_MB
as this is the necessary app setting to increase beyond the default limit. Double check the value is a valid MB number. E.g. 4GB will be 4096
. I don't believe the container memory one is necessary so maybe remove this, and restart the app and see how that goes.
Memory check
In addition, you can view the memory assignment instantly via the backend KUDU service:
- Locate your App > Under Development Tools on the left find Advanced Tools > Go > Process Explorer and you should be able to view the memory allocation.
Let us know how you get on, if you need more help drop a comment. If this solves your issue, feel free to mark as an accepted answer. Cheers!