The Ranch application with SSL listener fails after calling init:stop/0 in Erlang/OTP 17.1 and 17.3

[ninenines]

The Ranch application with SSL listener fails after calling init:stop/0 in Erlang/OTP 17.1 and 17.3

[chaehb]

I have struggled the same issue after erlang/otp 17.1.

[essen]

If the listening socket got closed, we need to reopen it, therefore we crash here so the error bubbles up the supervision tree until the code that reopens the socket.

The relevant mailing list discussion can be found at http://erlang.org/pipermail/erlang-questions/2014-October/081183.html

This code should not be triggered on shutdown as these processes are brutally killed.

The issue comes from the application start/stop order. If you make Ranch depend on SSL, everything works correctly. What I am unsure of is what has changed that makes code that worked before 17.1 to suddenly stop working, though.

[vicbaz]

Thank you for the clarification. I think this issue can be closed.

[essen]

I will keep it open for now as I need to investigate further, so this will be my reminder. Thanks for the report!

[MarkNijhof]

Hi @essen ,
How do I make Ranch depend on SSL to it prevents the crash on stop?

[vicbaz]

sed is your friend.

I do this:

include erlang.mk

deps::
    sed -i 's/\(stdlib\)$$/\1,\n\t\tssl/' deps/ranch/ebin/ranch.app

[MarkNijhof]

Awesome, thanks for that tip

[justnoxx]

Hi, after erlang upgrade to r18 I have this issue again. Proposed solution with sed has no effect.

[justnoxx]

Fixed sed command:

sed -i 's/\(stdlib\)/\1,\t\tssl/' deps/ranch/ebin/ranch.app

[essen]

So this is fixed in my local copy. Push later and will be in 1.3.0. Closing, thanks!