Backend service freezes on IKV server.

[alex-c]

The backend service freezes on the IKV server after a few successful requests. It is run with Docker and the reason is not clear. One possibility is resource/thread starvation (found a warning of type Microsoft.AspNetCore.Server.Kestrel [...] Heartbeat took longer than "00:00:01" in the logs after one of the crashes)...

Possible solutions:

• migration to .NET Core 3.1 (LTS)
• change code hot paths from API calls to DB calls to async/await signatures