Erlang supervisor restart interval

2018-05-31 06:39:35

I have a supervisor with one_for_one restart strategy. Is it possible to set some time interval between child process restarting?

Fe remote db crushed and I want to wait 10 seconds between restore connection attempt.

Actually, you could let the supervisor to immediately restart its children and implement what is called lazy initialization:

The supervisor (re)starts (immediately) the child (say, a gen_server)

The gen_server returns a 0 timeout in its init function

In the handle_info you do an active wait (your 10 seconds) to ensure the DB is properly initialized

This way, you ensure that all requests to the gen_server are processed after the DB is properly initialized.

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