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@@ -29,6 +29,9 @@
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%% these apps are always (re)started by emqx_machine
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-define(BASIC_REBOOT_APPS, [gproc, esockd, ranch, cowboy, emqx]).
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+%% If any of these applications crash, the entire EMQX node shuts down
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+-define(BASIC_PERMANENT_APPS, [mria, ekka, esockd, emqx]).
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+
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post_boot() ->
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ok = ensure_apps_started(),
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ok = print_vsn(),
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@@ -76,7 +79,7 @@ ensure_apps_started() ->
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start_one_app(App) ->
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?SLOG(debug, #{msg => "starting_app", app => App}),
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- case application:ensure_all_started(App) of
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+ case application:ensure_all_started(App, restart_type(App)) of
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{ok, Apps} ->
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?SLOG(debug, #{msg => "started_apps", apps => Apps});
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{error, Reason} ->
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@@ -84,6 +87,16 @@ start_one_app(App) ->
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error({failed_to_start_app, App, Reason})
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end.
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+restart_type(App) ->
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+ PermanentApps =
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+ ?BASIC_PERMANENT_APPS ++ application:get_env(emqx_machine, permanent_applications, []),
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+ case lists:member(App, PermanentApps) of
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+ true ->
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+ permanent;
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+ false ->
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+ temporary
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+ end.
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+
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%% list of app names which should be rebooted when:
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%% 1. due to static config change
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%% 2. after join a cluster
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ieQu1