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<H1>[99s-extend] Stop ranch listeners without dropping connections</H1>
<B>Roger Lipscombe</B>
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TITLE="[99s-extend] Stop ranch listeners without dropping connections">roger at differentpla.net
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<I>Wed Jun 11 14:38:59 CEST 2014</I>
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<PRE>Using ranch, is there any way to stop the listener (and acceptors)
without dropping the existing connections?
I ask because I'd like to start another instance of my server on the
same box and have the old instance continue to handle its existing
connections for a while.
It looks to me that if I call ranch:stop_listener, it'll kill the
ranch_listener_sup, which will also kill the ranch_conns_sup (and the
existing connections).
If I manually do a supervisor:terminate_child(ListenerPid,
ranch_acceptors_sup), the acceptors go away, but the socket is still
open, which means that I can't start another instance of my server.
Thoughts?
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