[erlang-questions] Supervisor maximum restart frequency under high load

Ilyushonak Barys <>
Mon Sep 24 13:27:00 CEST 2012


Hi, erlangers!

I am kindly ask you to help me clarify the way I see the Erlang design pattern for the following issue.
I have the server Erlang process called A, and many similar client processes, called B. The A process has two states – “ok” and “recovery”. While it “ok” – client can use the A API and do the stuff. While the A at the “recovery” the clients got the error and be restarted by the application supervisor.
The my problem starts while I have a lot of B processes and “recovery” state of A takes time. The supervisor of B got the “Maximum Restart Frequency” and fails.
While I am using application supervisor it brings me to restart my OTP application.

What the best way to fix it? Use the separate supervisor for the B? Should I handle the reply from the A in “recovery” state manually (what about fail early and often)?

Best Regards,
Barys Ilyushonak

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