diff --git a/apps/emqx_bridge/src/emqx_bridge_api.erl b/apps/emqx_bridge/src/emqx_bridge_api.erl
index 36f8cf0f5..2f15bbcd7 100644
--- a/apps/emqx_bridge/src/emqx_bridge_api.erl
+++ b/apps/emqx_bridge/src/emqx_bridge_api.erl
@@ -57,22 +57,95 @@
     end
 ).
 
--define(METRICS(MATCH, SUCC, FAILED, RATE, RATE_5, RATE_MAX), #{
-    matched => MATCH,
-    success => SUCC,
-    failed => FAILED,
-    rate => RATE,
-    rate_last5m => RATE_5,
-    rate_max => RATE_MAX
-}).
--define(metrics(MATCH, SUCC, FAILED, RATE, RATE_5, RATE_MAX), #{
-    matched := MATCH,
-    success := SUCC,
-    failed := FAILED,
-    rate := RATE,
-    rate_last5m := RATE_5,
-    rate_max := RATE_MAX
-}).
+-define(EMPTY_METRICS,
+    ?METRICS(
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    )
+).
+
+-define(METRICS(
+    Batched,
+    Dropped,
+    DroppedOther,
+    DroppedQueueFull,
+    DroppedQueueNotEnabled,
+    DroppedResourceNotFound,
+    DroppedResourceStopped,
+    Matched,
+    Queued,
+    Retried,
+    Sent,
+    SentExcpt,
+    SentFailed,
+    SentInflight,
+    SentSucc,
+    RATE,
+    RATE_5,
+    RATE_MAX
+),
+    #{
+        'batched' => Batched,
+        'dropped' => Dropped,
+        'dropped.other' => DroppedOther,
+        'dropped.queue_full' => DroppedQueueFull,
+        'dropped.queue_not_enabled' => DroppedQueueNotEnabled,
+        'dropped.resource_not_found' => DroppedResourceNotFound,
+        'dropped.resource_stopped' => DroppedResourceStopped,
+        'matched' => Matched,
+        'queued' => Queued,
+        'retried' => Retried,
+        'sent' => Sent,
+        'sent.exception' => SentExcpt,
+        'sent.failed' => SentFailed,
+        'sent.inflight' => SentInflight,
+        'sent.success' => SentSucc,
+        rate => RATE,
+        rate_last5m => RATE_5,
+        rate_max => RATE_MAX
+    }
+).
+
+-define(metrics(
+    Batched,
+    Dropped,
+    DroppedOther,
+    DroppedQueueFull,
+    DroppedQueueNotEnabled,
+    DroppedResourceNotFound,
+    DroppedResourceStopped,
+    Matched,
+    Queued,
+    Retried,
+    Sent,
+    SentExcpt,
+    SentFailed,
+    SentInflight,
+    SentSucc,
+    RATE,
+    RATE_5,
+    RATE_MAX
+),
+    #{
+        'batched' := Batched,
+        'dropped' := Dropped,
+        'dropped.other' := DroppedOther,
+        'dropped.queue_full' := DroppedQueueFull,
+        'dropped.queue_not_enabled' := DroppedQueueNotEnabled,
+        'dropped.resource_not_found' := DroppedResourceNotFound,
+        'dropped.resource_stopped' := DroppedResourceStopped,
+        'matched' := Matched,
+        'queued' := Queued,
+        'retried' := Retried,
+        'sent' := Sent,
+        'sent.exception' := SentExcpt,
+        'sent.failed' := SentFailed,
+        'sent.inflight' := SentInflight,
+        'sent.success' := SentSucc,
+        rate := RATE,
+        rate_last5m := RATE_5,
+        rate_max := RATE_MAX
+    }
+).
 
 namespace() -> "bridge".
 
@@ -193,11 +266,11 @@ method_example(_Type, put) ->
 
 maybe_with_metrics_example(TypeNameExam, get) ->
     TypeNameExam#{
-        metrics => ?METRICS(0, 0, 0, 0, 0, 0),
+        metrics => ?EMPTY_METRICS,
         node_metrics => [
             #{
                 node => node(),
-                metrics => ?METRICS(0, 0, 0, 0, 0, 0)
+                metrics => ?EMPTY_METRICS
             }
         ]
     };
@@ -217,7 +290,16 @@ info_example_basic(webhook) ->
         ssl => #{enable => false},
         local_topic => <<"emqx_webhook/#">>,
         method => post,
-        body => <<"${payload}">>
+        body => <<"${payload}">>,
+        resource_opts => #{
+            worker_pool_size => 1,
+            health_check_interval => 15000,
+            auto_restart_interval => 15000,
+            query_mode => sync,
+            async_inflight_window => 100,
+            enable_queue => true,
+            max_queue_bytes => 1024 * 1024 * 1024
+        }
     };
 info_example_basic(mqtt) ->
     (mqtt_main_example())#{
@@ -619,19 +701,37 @@ collect_metrics(Bridges) ->
     [maps:with([node, metrics], B) || B <- Bridges].
 
 aggregate_metrics(AllMetrics) ->
-    InitMetrics = ?METRICS(0, 0, 0, 0, 0, 0),
+    InitMetrics = ?EMPTY_METRICS,
     lists:foldl(
         fun(
-            #{metrics := ?metrics(Match1, Succ1, Failed1, Rate1, Rate5m1, RateMax1)},
-            ?metrics(Match0, Succ0, Failed0, Rate0, Rate5m0, RateMax0)
+            #{
+                metrics := ?metrics(
+                    M1, M2, M3, M4, M5, M6, M7, M8, M9, M10, M11, M12, M13, M14, M15, M16, M17, M18
+                )
+            },
+            ?metrics(
+                N1, N2, N3, N4, N5, N6, N7, N8, N9, N10, N11, N12, N13, N14, N15, N16, N17, N18
+            )
         ) ->
             ?METRICS(
-                Match1 + Match0,
-                Succ1 + Succ0,
-                Failed1 + Failed0,
-                Rate1 + Rate0,
-                Rate5m1 + Rate5m0,
-                RateMax1 + RateMax0
+                M1 + N1,
+                M2 + N2,
+                M3 + N3,
+                M4 + N4,
+                M5 + N5,
+                M6 + N6,
+                M7 + N7,
+                M8 + N8,
+                M9 + N9,
+                M10 + N10,
+                M11 + N11,
+                M12 + N12,
+                M13 + N13,
+                M14 + N14,
+                M15 + N15,
+                M16 + N16,
+                M17 + N17,
+                M18 + N18
             )
         end,
         InitMetrics,
@@ -660,12 +760,47 @@ format_resp(
     }.
 
 format_metrics(#{
-    counters := #{failed := Failed, exception := Ex, matched := Match, success := Succ},
+    counters := #{
+        'batched' := Batched,
+        'dropped' := Dropped,
+        'dropped.other' := DroppedOther,
+        'dropped.queue_full' := DroppedQueueFull,
+        'dropped.queue_not_enabled' := DroppedQueueNotEnabled,
+        'dropped.resource_not_found' := DroppedResourceNotFound,
+        'dropped.resource_stopped' := DroppedResourceStopped,
+        'matched' := Matched,
+        'queued' := Queued,
+        'retried' := Retried,
+        'sent' := Sent,
+        'sent.exception' := SentExcpt,
+        'sent.failed' := SentFailed,
+        'sent.inflight' := SentInflight,
+        'sent.success' := SentSucc
+    },
     rate := #{
         matched := #{current := Rate, last5m := Rate5m, max := RateMax}
     }
 }) ->
-    ?METRICS(Match, Succ, Failed + Ex, Rate, Rate5m, RateMax).
+    ?METRICS(
+        Batched,
+        Dropped,
+        DroppedOther,
+        DroppedQueueFull,
+        DroppedQueueNotEnabled,
+        DroppedResourceNotFound,
+        DroppedResourceStopped,
+        Matched,
+        Queued,
+        Retried,
+        Sent,
+        SentExcpt,
+        SentFailed,
+        SentInflight,
+        SentSucc,
+        Rate,
+        Rate5m,
+        RateMax
+    ).
 
 fill_defaults(Type, RawConf) ->
     PackedConf = pack_bridge_conf(Type, RawConf),
diff --git a/apps/emqx_connector/src/emqx_connector_http.erl b/apps/emqx_connector/src/emqx_connector_http.erl
index f63873fe3..2562bf272 100644
--- a/apps/emqx_connector/src/emqx_connector_http.erl
+++ b/apps/emqx_connector/src/emqx_connector_http.erl
@@ -286,6 +286,13 @@ on_query(
             Retry
         )
     of
+        {error, econnrefused} ->
+            ?SLOG(warning, #{
+                msg => "http_connector_do_request_failed",
+                reason => econnrefused,
+                connector => InstId
+            }),
+            {recoverable_error, econnrefused};
         {error, Reason} = Result ->
             ?SLOG(error, #{
                 msg => "http_connector_do_request_failed",