From 6c465cfb8f89fe5e1859b8eba58d6503f332898f Mon Sep 17 00:00:00 2001
From: JianBo He <heeejianbo@gmail.com>
Date: Mon, 13 Jun 2022 17:43:06 +0800
Subject: [PATCH] fix(gw): fix list listeners failed if gateway disabled

---
 apps/emqx_gateway/src/emqx_gateway_api_listeners.erl | 9 ++++++++-
 apps/emqx_gateway/src/emqx_gateway_insta_sup.erl     | 6 +++---
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/apps/emqx_gateway/src/emqx_gateway_api_listeners.erl b/apps/emqx_gateway/src/emqx_gateway_api_listeners.erl
index 1e851d1c4..0db5264b8 100644
--- a/apps/emqx_gateway/src/emqx_gateway_api_listeners.erl
+++ b/apps/emqx_gateway/src/emqx_gateway_api_listeners.erl
@@ -292,7 +292,14 @@ do_listeners_cluster_status(Listeners) ->
         fun({Id, ListenOn}, Acc) ->
             BinId = erlang:atom_to_binary(Id),
             {ok, #{<<"max_connections">> := Max}} = emqx_gateway_conf:listener(BinId),
-            Curr = esockd:get_current_connections({Id, ListenOn}),
+            Curr =
+                try esockd:get_current_connections({Id, ListenOn}) of
+                    Int -> Int
+                catch
+                    %% not started
+                    error:not_found ->
+                        0
+                end,
             Acc#{
                 Id => #{
                     node => Node,
diff --git a/apps/emqx_gateway/src/emqx_gateway_insta_sup.erl b/apps/emqx_gateway/src/emqx_gateway_insta_sup.erl
index c47b8a050..08c06a9d8 100644
--- a/apps/emqx_gateway/src/emqx_gateway_insta_sup.erl
+++ b/apps/emqx_gateway/src/emqx_gateway_insta_sup.erl
@@ -173,14 +173,14 @@ handle_info(
 ) ->
     case lists:member(Pid, Pids) of
         true ->
-            ?SLOG(error, #{
+            ?SLOG(info, #{
                 msg => "child_process_exited",
                 child => Pid,
                 reason => Reason
             }),
             case Pids -- [Pid] of
                 [] ->
-                    ?SLOG(error, #{
+                    ?SLOG(info, #{
                         msg => "gateway_all_children_process_existed",
                         gateway_name => Name
                     }),
@@ -193,7 +193,7 @@ handle_info(
                     {noreply, State#state{child_pids = RemainPids}}
             end;
         _ ->
-            ?SLOG(error, #{
+            ?SLOG(info, #{
                 msg => "gateway_catch_a_unknown_process_exited",
                 child => Pid,
                 reason => Reason,