mirror of
https://github.com/processone/ejabberd.git
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515f8b22c0
Previous version was inefficient: it had a lot of false positives along with a lot of false negatives, making its usage pointless. The new verion is based on memsup(3erl) application: the OOM watchdog is only started when total OS memory consumption is more than 80%. A watchdog periodically inspects all running processes and collects statistics about overloaded ones (those queueing a lot of messages). If the OOM killer is enabled (`oom_killer: true`), all overloaded processes would be killed. By default, OOM killer is enabled. When memory consumption is back to normal, the OOM watchdog is stopped.
189 lines
5.8 KiB
Erlang
189 lines
5.8 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : ejabberd_sup.erl
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%%% Author : Alexey Shchepin <alexey@process-one.net>
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%%% Purpose : Erlang/OTP supervisor
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%%% Created : 31 Jan 2003 by Alexey Shchepin <alexey@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2017 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%%----------------------------------------------------------------------
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-module(ejabberd_sup).
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-author('alexey@process-one.net').
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-behaviour(supervisor).
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-export([start_link/0, init/1]).
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start_link() ->
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supervisor:start_link({local, ?MODULE}, ?MODULE, []).
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init([]) ->
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Hooks =
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{ejabberd_hooks,
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{ejabberd_hooks, start_link, []},
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permanent,
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brutal_kill,
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worker,
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[ejabberd_hooks]},
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Cluster = {ejabberd_cluster,
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{ejabberd_cluster, start_link, []},
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permanent,
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5000,
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worker,
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[ejabberd_cluster]},
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S2S =
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{ejabberd_s2s,
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{ejabberd_s2s, start_link, []},
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permanent,
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brutal_kill,
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worker,
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[ejabberd_s2s]},
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Captcha =
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{ejabberd_captcha,
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{ejabberd_captcha, start_link, []},
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permanent,
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brutal_kill,
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worker,
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[ejabberd_captcha]},
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Listener =
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{ejabberd_listener,
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{ejabberd_listener, start_link, []},
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permanent,
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infinity,
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supervisor,
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[ejabberd_listener]},
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S2SInSupervisor =
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{ejabberd_s2s_in_sup,
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{ejabberd_tmp_sup, start_link,
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[ejabberd_s2s_in_sup, ejabberd_s2s_in]},
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permanent,
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infinity,
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supervisor,
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[ejabberd_tmp_sup]},
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S2SOutSupervisor =
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{ejabberd_s2s_out_sup,
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{ejabberd_tmp_sup, start_link,
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[ejabberd_s2s_out_sup, ejabberd_s2s_out]},
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permanent,
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infinity,
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supervisor,
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[ejabberd_tmp_sup]},
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ServiceSupervisor =
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{ejabberd_service_sup,
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{ejabberd_tmp_sup, start_link,
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[ejabberd_service_sup, ejabberd_service]},
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permanent,
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infinity,
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supervisor,
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[ejabberd_tmp_sup]},
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IQSupervisor =
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{ejabberd_iq_sup,
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{ejabberd_tmp_sup, start_link,
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[ejabberd_iq_sup, gen_iq_handler]},
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permanent,
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infinity,
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supervisor,
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[ejabberd_tmp_sup]},
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BackendSupervisor = {ejabberd_backend_sup,
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{ejabberd_backend_sup, start_link, []},
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permanent, infinity, supervisor,
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[ejabberd_backend_sup]},
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ACL = {acl, {acl, start_link, []},
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permanent, 5000, worker, [acl]},
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Shaper = {shaper, {shaper, start_link, []},
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permanent, 5000, worker, [shaper]},
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SQLSupervisor = {ejabberd_rdbms,
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{ejabberd_rdbms, start_link, []},
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permanent, infinity, supervisor, [ejabberd_rdbms]},
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RiakSupervisor = {ejabberd_riak_sup,
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{ejabberd_riak_sup, start_link, []},
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permanent, infinity, supervisor, [ejabberd_riak_sup]},
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RedisSupervisor = {ejabberd_redis_sup,
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{ejabberd_redis_sup, start_link, []},
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permanent, infinity, supervisor, [ejabberd_redis_sup]},
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Router = {ejabberd_router, {ejabberd_router, start_link, []},
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permanent, 5000, worker, [ejabberd_router]},
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RouterMulticast = {ejabberd_router_multicast,
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{ejabberd_router_multicast, start_link, []},
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permanent, 5000, worker, [ejabberd_router_multicast]},
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Local = {ejabberd_local, {ejabberd_local, start_link, []},
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permanent, 5000, worker, [ejabberd_local]},
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SM = {ejabberd_sm, {ejabberd_sm, start_link, []},
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permanent, 5000, worker, [ejabberd_sm]},
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GenModSupervisor = {ejabberd_gen_mod_sup, {gen_mod, start_link, []},
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permanent, infinity, supervisor, [gen_mod]},
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ExtMod = {ext_mod, {ext_mod, start_link, []},
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permanent, 5000, worker, [ext_mod]},
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Auth = {ejabberd_auth, {ejabberd_auth, start_link, []},
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permanent, 5000, worker, [ejabberd_auth]},
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OAuth = {ejabberd_oauth, {ejabberd_oauth, start_link, []},
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permanent, 5000, worker, [ejabberd_oauth]},
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Translation = {translate, {translate, start_link, []},
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permanent, 5000, worker, [translate]},
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AccessPerms = {ejabberd_access_permissions,
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{ejabberd_access_permissions, start_link, []},
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permanent, 5000, worker, [ejabberd_access_permissions]},
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Ctl = {ejabberd_ctl, {ejabberd_ctl, start_link, []},
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permanent, 5000, worker, [ejabberd_ctl]},
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Commands = {ejabberd_commands, {ejabberd_commands, start_link, []},
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permanent, 5000, worker, [ejabberd_commands]},
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Admin = {ejabberd_admin, {ejabberd_admin, start_link, []},
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permanent, 5000, worker, [ejabberd_admin]},
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CyrSASL = {cyrsasl, {cyrsasl, start_link, []},
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permanent, 5000, worker, [cyrsasl]},
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PKIX = {ejabberd_pkix, {ejabberd_pkix, start_link, []},
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permanent, 5000, worker, [ejabberd_pkix]},
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ACME = {ejabberd_acme, {ejabberd_acme, start_link, []},
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permanent, 5000, worker, [ejabberd_acme]},
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IQ = {ejabberd_iq, {ejabberd_iq, start_link, []},
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permanent, 5000, worker, [ejabberd_iq]},
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{ok, {{one_for_one, 10, 1},
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[Hooks,
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Cluster,
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CyrSASL,
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Translation,
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AccessPerms,
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Ctl,
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Commands,
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Admin,
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PKIX,
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ACME,
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Listener,
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S2S,
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Captcha,
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S2SInSupervisor,
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S2SOutSupervisor,
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ServiceSupervisor,
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IQSupervisor,
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ACL,
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Shaper,
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BackendSupervisor,
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SQLSupervisor,
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RiakSupervisor,
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RedisSupervisor,
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IQ,
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Router,
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RouterMulticast,
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Local,
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SM,
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ExtMod,
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GenModSupervisor,
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Auth,
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OAuth]}}.
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