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author | juhlig <[email protected]> | 2019-04-30 16:13:07 +0200 |
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committer | Loïc Hoguin <[email protected]> | 2019-05-06 10:08:58 +0200 |
commit | f07391b5eb8ef4f6c22d1666105db9856f5f1b66 (patch) | |
tree | d5e0ada912374cbbfed6d78072b7fd4160458e41 /src/ranch_conns_sup_sup.erl | |
parent | 7cbc7fed32940a4aa7beedec9cac23376a19a8c0 (diff) | |
download | ranch-f07391b5eb8ef4f6c22d1666105db9856f5f1b66.tar.gz ranch-f07391b5eb8ef4f6c22d1666105db9856f5f1b66.tar.bz2 ranch-f07391b5eb8ef4f6c22d1666105db9856f5f1b66.zip |
Create one ranch_conns_sup per num_acceptor
This gets rid of a bottleneck that occurs when many connections
are handled by a single supervisor. The bigger issue occurred
when many connections were dropped at once and the supervisor
couldn't keep up.
Diffstat (limited to 'src/ranch_conns_sup_sup.erl')
-rw-r--r-- | src/ranch_conns_sup_sup.erl | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/ranch_conns_sup_sup.erl b/src/ranch_conns_sup_sup.erl new file mode 100644 index 0000000..423c5db --- /dev/null +++ b/src/ranch_conns_sup_sup.erl @@ -0,0 +1,34 @@ +%% Copyright (c) 2019, Jan Uhlig <[email protected]> +%% +%% Permission to use, copy, modify, and/or distribute this software for any +%% purpose with or without fee is hereby granted, provided that the above +%% copyright notice and this permission notice appear in all copies. +%% +%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +-module(ranch_conns_sup_sup). + +-behaviour(supervisor). + +-export([start_link/4]). +-export([init/1]). + +start_link(Ref, NumAcceptors, Transport, Protocol) -> + ok = ranch_server:cleanup_connections_sups(Ref), + supervisor:start_link(?MODULE, { + Ref, NumAcceptors, Transport, Protocol + }). + +init({Ref, NumAcceptors, Transport, Protocol}) -> + ChildSpecs = [ + {{ranch_conns_sup, N}, {ranch_conns_sup, start_link, + [Ref, N, Transport, Protocol]}, + permanent, infinity, supervisor, [ranch_conns_sup]} + || N <- lists:seq(1, NumAcceptors)], + {ok, {{one_for_one, 1, 5}, ChildSpecs}}. |