diff --git a/apps/emqx/src/emqx_map_lib.erl b/apps/emqx/src/emqx_map_lib.erl
index d666e315e..650ef0401 100644
--- a/apps/emqx/src/emqx_map_lib.erl
+++ b/apps/emqx/src/emqx_map_lib.erl
@@ -197,7 +197,6 @@ covert_keys_to_atom(BinKeyMap, Conv) ->
     ).
 
 %% copy from maps.erl OTP24.0
--compile({inline, [error_with_info/2]}).
 merge_with(Combiner, Map1, Map2) when
     is_map(Map1),
     is_map(Map2),
diff --git a/apps/emqx_authn/src/emqx_authn_api.erl b/apps/emqx_authn/src/emqx_authn_api.erl
index 51a3ea046..9974d66de 100644
--- a/apps/emqx_authn/src/emqx_authn_api.erl
+++ b/apps/emqx_authn/src/emqx_authn_api.erl
@@ -89,7 +89,8 @@
     delete_user/3,
     find_user/3,
     update_user/4,
-    serialize_error/1
+    serialize_error/1,
+    aggregate_metrics/1
 ]).
 
 -elvis([{elvis_style, god_modules, disable}]).
@@ -992,7 +993,7 @@ aggregate_metrics([]) ->
     empty_metrics_and_status;
 aggregate_metrics([HeadMetrics | AllMetrics]) ->
     CombinerFun =
-        fun ComFun(Val1, Val2) ->
+        fun ComFun(_Key, Val1, Val2) ->
             case erlang:is_map(Val1) of
                 true -> emqx_map_lib:merge_with(ComFun, Val1, Val2);
                 false -> Val1 + Val2
diff --git a/apps/emqx_authn/test/emqx_authn_api_SUITE.erl b/apps/emqx_authn/test/emqx_authn_api_SUITE.erl
index 7889143f3..d7342185a 100644
--- a/apps/emqx_authn/test/emqx_authn_api_SUITE.erl
+++ b/apps/emqx_authn/test/emqx_authn_api_SUITE.erl
@@ -119,6 +119,23 @@ t_listener_authenticator_move(_) ->
 t_listener_authenticator_import_users(_) ->
     test_authenticator_import_users(["listeners", ?TCP_DEFAULT]).
 
+t_aggregate_metrics(_) ->
+    Metrics = #{ 'emqx@node1.emqx.io' => #{metrics =>
+                                               #{failed => 0,matched => 1,rate => 0.0,
+                                                 rate_last5m => 0.0,rate_max => 0.1,
+                                                 success => 1}
+                                          },
+                 'emqx@node2.emqx.io' => #{metrics =>
+                                               #{failed => 0,matched => 1,rate => 0.0,
+                                                 rate_last5m => 0.0,rate_max => 0.1,
+                                                 success => 1}
+                                          }
+               },
+    Res = emqx_authn_api:aggregate_metrics(maps:values(Metrics)),
+    ?assertEqual(#{metrics =>
+                       #{failed => 0,matched => 2,rate => 0.0,rate_last5m => 0.0,
+                         rate_max => 0.2,success => 2}}, Res).
+
 test_authenticators(PathPrefix) ->
     ValidConfig = emqx_authn_test_lib:http_example(),
     {ok, 200, _} = request(
diff --git a/apps/emqx_authz/src/emqx_authz_api_sources.erl b/apps/emqx_authz/src/emqx_authz_api_sources.erl
index c05f9f133..22bfbac42 100644
--- a/apps/emqx_authz/src/emqx_authz_api_sources.erl
+++ b/apps/emqx_authz/src/emqx_authz_api_sources.erl
@@ -46,7 +46,8 @@
 -export([
     sources/2,
     source/2,
-    move_source/2
+    move_source/2,
+    aggregate_metrics/1
 ]).
 
 api_spec() ->
@@ -373,7 +374,7 @@ aggregate_metrics([]) ->
     empty_metrics_and_status;
 aggregate_metrics([HeadMetrics | AllMetrics]) ->
     CombinerFun =
-        fun ComFun(Val1, Val2) ->
+        fun ComFun(_Key, Val1, Val2) ->
             case erlang:is_map(Val1) of
                 true -> emqx_map_lib:merge_with(ComFun, Val1, Val2);
                 false -> Val1 + Val2
diff --git a/apps/emqx_authz/test/emqx_authz_api_sources_SUITE.erl b/apps/emqx_authz/test/emqx_authz_api_sources_SUITE.erl
index 7cf4472bc..a41f98d27 100644
--- a/apps/emqx_authz/test/emqx_authz_api_sources_SUITE.erl
+++ b/apps/emqx_authz/test/emqx_authz_api_sources_SUITE.erl
@@ -448,6 +448,23 @@ t_move_source(_) ->
 
     ok.
 
+t_aggregate_metrics(_) ->
+    Metrics = #{ 'emqx@node1.emqx.io' => #{metrics =>
+                                               #{failed => 0,matched => 1,rate => 0.0,
+                                                 rate_last5m => 0.0,rate_max => 0.1,
+                                                 success => 1}
+                                          },
+                 'emqx@node2.emqx.io' => #{metrics =>
+                                               #{failed => 0,matched => 1,rate => 0.0,
+                                                 rate_last5m => 0.0,rate_max => 0.1,
+                                                 success => 1}
+                                          }
+               },
+    Res = emqx_authn_api:aggregate_metrics(maps:values(Metrics)),
+    ?assertEqual(#{metrics =>
+                       #{failed => 0,matched => 2,rate => 0.0,rate_last5m => 0.0,
+                         rate_max => 0.2,success => 2}}, Res).
+
 get_sources(Result) ->
     maps:get(<<"sources">>, jsx:decode(Result), []).