Merge pull request #8156 from lafirest/fix/default_con_limiter

fix(limiter): add default connection limiter for listeners

apps/emqx/etc/emqx.conf

@@ -1,11 +1,13 @@
 listeners.tcp.default {
   bind = "0.0.0.0:1883"
   max_connections = 1024000
+  limiter.connection = default
 }
 
 listeners.ssl.default {
   bind = "0.0.0.0:8883"
   max_connections = 512000
+  limiter.connection = default
   ssl_options {
     keyfile = "{{ platform_etc_dir }}/certs/key.pem"
     certfile = "{{ platform_etc_dir }}/certs/cert.pem"
@@ -16,12 +18,14 @@ listeners.ssl.default {
 listeners.ws.default {
   bind = "0.0.0.0:8083"
   max_connections = 1024000
+  limiter.connection = default
   websocket.mqtt_path = "/mqtt"
 }
 
 listeners.wss.default {
   bind = "0.0.0.0:8084"
   max_connections = 512000
+  limiter.connection = default
   websocket.mqtt_path = "/mqtt"
   ssl_options {
     keyfile = "{{ platform_etc_dir }}/certs/key.pem"
@@ -34,6 +38,7 @@ listeners.wss.default {
 #  enabled = false
 #  bind = "0.0.0.0:14567"
 #  max_connections = 1024000
+#  limiter.connection = default
 #  keyfile = "{{ platform_etc_dir }}/certs/key.pem"
 #  certfile = "{{ platform_etc_dir }}/certs/cert.pem"
 #}

apps/emqx/i18n/emqx_limiter_i18n.conf

@@ -1,16 +1,5 @@
 emqx_limiter_schema {
 
-  enable {
-    desc {
-      en: """Enable"""
-      zh: """是否开启"""
-    }
-    label: {
-      en: """Enable"""
-      zh: """是否开启"""
-    }
-  }
-
   failure_strategy {
     desc {
       en: """The strategy when all the retries failed."""

apps/emqx/src/emqx_limiter/etc/emqx_limiter.conf

@@ -0,0 +1,11 @@
+limiter {
+  connection {
+    rate = "1000/s"
+    bucket {
+      default {
+        rate = "1000/s"
+        capacity = 1000
+      }
+    }
+  }
+}

apps/emqx/src/emqx_limiter/src/emqx_limiter_manager.erl

@@ -119,19 +119,9 @@ post_config_update([limiter, Type], _Config, NewConf, _OldConf, _AppEnvs) ->
     Config = maps:get(Type, NewConf),
     case emqx_limiter_server:whereis(Type) of
         undefined ->
-            case Config of
-                #{enable := false} ->
-                    ok;
-                _ ->
-                    start_server(Type)
-            end;
+            start_server(Type, Config);
         _ ->
-            case Config of
-                #{enable := false} ->
-                    stop_server(Type);
-                _ ->
-                    emqx_limiter_server:update_config(Type, Config)
-            end
+            emqx_limiter_server:update_config(Type, Config)
     end.
 
 %%--------------------------------------------------------------------

apps/emqx/src/emqx_limiter/src/emqx_limiter_schema.erl

@@ -30,8 +30,7 @@
     namespace/0,
     get_bucket_cfg_path/2,
     desc/1,
-    types/0,
-    is_enable/1
+    types/0
 ]).
 
 -define(KILOBYTE, 1024).
@@ -89,13 +88,12 @@ fields(limiter) ->
         {Type,
             ?HOCON(?R_REF(limiter_opts), #{
                 desc => ?DESC(Type),
-                default => #{<<"enable">> => false}
+                default => #{}
             })}
      || Type <- types()
     ];
 fields(limiter_opts) ->
     [
-        {enable, ?HOCON(boolean(), #{desc => ?DESC(enable), default => true})},
         {rate, ?HOCON(rate(), #{desc => ?DESC(rate), default => "infinity"})},
         {burst,
             ?HOCON(burst_rate(), #{
@@ -202,10 +200,6 @@ to_rate(Str) ->
 get_bucket_cfg_path(Type, BucketName) ->
     [limiter, Type, bucket, BucketName].
 
--spec is_enable(limiter_type()) -> boolean().
-is_enable(Type) ->
-    emqx:get_config([limiter, Type, enable], false).
-
 types() ->
     [bytes_in, message_in, connection, message_routing, batch].
 

apps/emqx/src/emqx_limiter/src/emqx_limiter_server.erl

@@ -113,13 +113,10 @@
 connect(_Type, undefined) ->
     {ok, emqx_htb_limiter:make_infinity_limiter()};
 connect(Type, BucketName) when is_atom(BucketName) ->
-    case check_enable_and_get_bucket_cfg(Type, BucketName) of
+    case get_bucket_cfg(Type, BucketName) of
         undefined ->
             ?SLOG(error, #{msg => "bucket_config_not_found", type => Type, bucket => BucketName}),
             {error, config_not_found};
-        limiter_not_started ->
-            ?SLOG(error, #{msg => "limiter_not_started", type => Type, bucket => BucketName}),
-            {error, limiter_not_started};
         #{
             rate := AggrRate,
             capacity := AggrSize,
@@ -602,13 +599,8 @@ call(Type, Msg) ->
             gen_server:call(Pid, Msg)
     end.
 
--spec check_enable_and_get_bucket_cfg(limiter_type(), bucket_name()) ->
+-spec get_bucket_cfg(limiter_type(), bucket_name()) ->
     undefined | limiter_not_started | hocons:config().
-check_enable_and_get_bucket_cfg(Type, Bucket) ->
-    case emqx_limiter_schema:is_enable(Type) of
-        false ->
-            limiter_not_started;
-        _ ->
-            Path = emqx_limiter_schema:get_bucket_cfg_path(Type, Bucket),
-            emqx:get_config(Path, undefined)
-    end.
+get_bucket_cfg(Type, Bucket) ->
+    Path = emqx_limiter_schema:get_bucket_cfg_path(Type, Bucket),
+    emqx:get_config(Path, undefined).

apps/emqx/src/emqx_limiter/src/emqx_limiter_server_sup.erl

@@ -101,14 +101,4 @@ make_child(Type, Cfg) ->
     }.
 
 childs() ->
-    Conf = emqx:get_config([limiter]),
-    lists:foldl(
-        fun
-            ({Type, #{enable := true}}, Acc) ->
-                [make_child(Type) | Acc];
-            (_, Acc) ->
-                Acc
-        end,
-        [],
-        maps:to_list(Conf)
-    ).
+    [make_child(Type) || Type <- emqx_limiter_schema:types()].

apps/emqx/test/emqx_listeners_SUITE.erl

@@ -49,32 +49,33 @@ init_per_testcase(Case, Config) when
         undefined -> ok;
         Listeners -> emqx_config:put([listeners], maps:remove(quic, Listeners))
     end,
-    PrevListeners = emqx_config:get([listeners, tcp], #{}),
-    PrevRateLimit = emqx_config:get([rate_limit], #{}),
-    emqx_config:put(
-        [listeners, tcp],
-        #{
+
+    PrevListeners = emqx_config:get([listeners]),
+    PureListeners = remove_default_limiter(PrevListeners),
+    PureListeners2 = PureListeners#{
+        tcp => #{
             listener_test => #{
                 bind => {"127.0.0.1", 9999},
                 max_connections => 4321,
                 limiter => #{}
             }
         }
-    ),
-    emqx_config:put([rate_limit], #{max_conn_rate => 1000}),
+    },
+    emqx_config:put([listeners], PureListeners2),
+
     ok = emqx_listeners:start(),
     [
-        {prev_listener_conf, PrevListeners},
-        {prev_rate_limit_conf, PrevRateLimit}
+        {prev_listener_conf, PrevListeners}
         | Config
     ];
 init_per_testcase(t_wss_conn, Config) ->
     catch emqx_config_handler:stop(),
     {ok, _} = emqx_config_handler:start_link(),
-    PrevListeners = emqx_config:get([listeners, wss], #{}),
-    emqx_config:put(
-        [listeners, wss],
-        #{
+
+    PrevListeners = emqx_config:get([listeners]),
+    PureListeners = remove_default_limiter(PrevListeners),
+    PureListeners2 = PureListeners#{
+        wss => #{
             listener_test => #{
                 bind => {{127, 0, 0, 1}, 9998},
                 limiter => #{},
@@ -85,7 +86,9 @@ init_per_testcase(t_wss_conn, Config) ->
                 }
             }
         }
-    ),
+    },
+    emqx_config:put([listeners], PureListeners2),
+
     ok = emqx_listeners:start(),
     [
         {prev_listener_conf, PrevListeners}
@@ -94,25 +97,31 @@ init_per_testcase(t_wss_conn, Config) ->
 init_per_testcase(_, Config) ->
     catch emqx_config_handler:stop(),
     {ok, _} = emqx_config_handler:start_link(),
-    Config.
+    PrevListeners = emqx_config:get([listeners]),
+    PureListeners = remove_default_limiter(PrevListeners),
+    emqx_config:put([listeners], PureListeners),
+    [
+        {prev_listener_conf, PrevListeners}
+        | Config
+    ].
 
 end_per_testcase(Case, Config) when
     Case =:= t_max_conns_tcp; Case =:= t_current_conns_tcp
 ->
     PrevListener = ?config(prev_listener_conf, Config),
-    PrevRateLimit = ?config(prev_rate_limit_conf, Config),
     emqx_listeners:stop(),
-    emqx_config:put([listeners, tcp], PrevListener),
-    emqx_config:put([rate_limit], PrevRateLimit),
+    emqx_config:put([listeners], PrevListener),
     _ = emqx_config_handler:stop(),
     ok;
 end_per_testcase(t_wss_conn, Config) ->
     PrevListener = ?config(prev_listener_conf, Config),
     emqx_listeners:stop(),
-    emqx_config:put([listeners, wss], PrevListener),
+    emqx_config:put([listeners], PrevListener),
     _ = emqx_config_handler:stop(),
     ok;
-end_per_testcase(_, _Config) ->
+end_per_testcase(_, Config) ->
+    PrevListener = ?config(prev_listener_conf, Config),
+    emqx_config:put([listeners], PrevListener),
     _ = emqx_config_handler:stop(),
     ok.
 
@@ -184,3 +193,16 @@ get_base_dir(Module) ->
 
 get_base_dir() ->
     get_base_dir(?MODULE).
+
+remove_default_limiter(Listeners) ->
+    maps:map(
+        fun(_, X) ->
+            maps:map(
+                fun(_, E) ->
+                    maps:remove(limiter, E)
+                end,
+                X
+            )
+        end,
+        Listeners
+    ).

apps/emqx/test/emqx_ratelimiter_SUITE.erl

@@ -29,7 +29,6 @@
     "\n"
     "limiter {\n"
     "  bytes_in {\n"
-    "    enable = true\n"
     "    bucket.default {\n"
     "      rate = infinity\n"
     "      capacity = infinity\n"
@@ -37,7 +36,6 @@
     "  }\n"
     "\n"
     "  message_in {\n"
-    "    enable = true\n"
     "    bucket.default {\n"
     "      rate = infinity\n"
     "      capacity = infinity\n"
@@ -45,7 +43,6 @@
     "  }\n"
     "\n"
     "  connection {\n"
-    "    enable = true\n"
     "    bucket.default {\n"
     "      rate = infinity\n"
     "      capacity = infinity\n"
@@ -53,7 +50,6 @@
     "  }\n"
     "\n"
     "  message_routing {\n"
-    "    enable = true\n"
     "    bucket.default {\n"
     "      rate = infinity\n"
     "      capacity = infinity\n"
@@ -61,7 +57,6 @@
     "  }\n"
     "\n"
     "  batch {\n"
-    "    enable = true\n"
     "    bucket.retainer {\n"
     "      rate = infinity\n"
     "      capacity = infinity\n"