diff --git a/apps/emqx_auth_http/src/emqx_auth_http_app.erl b/apps/emqx_auth_http/src/emqx_auth_http_app.erl
index 487201e8e..e857fc681 100644
--- a/apps/emqx_auth_http/src/emqx_auth_http_app.erl
+++ b/apps/emqx_auth_http/src/emqx_auth_http_app.erl
@@ -61,20 +61,7 @@ translate_env(EnvName) ->
                                             _ -> 80
                                         end),
             Path = path(Path0),
-            Host = case inet:parse_address(Host0) of
-                       {ok, {_,_,_,_} = Addr} -> Addr;
-                       {ok, {_,_,_,_,_,_,_,_} = Addr} -> Addr;
-                       {error, einval} -> Host0
-                   end,
-            Inet = case Host of
-                       {_,_,_,_} -> inet;
-                       {_,_,_,_,_,_,_,_} -> inet6;
-                       _ ->
-                           case inet:getaddr(Host, inet6) of
-                               {error, _} -> inet;
-                               {ok, _} -> inet6
-                           end
-                   end,
+            {Inet, Host} = parse_host(Host0),
             MoreOpts = case Scheme of
                         "http" ->
                             [{transport_opts, [Inet]}];
@@ -152,6 +139,17 @@ unload_hooks() ->
     ehttpc_sup:stop_pool('emqx_auth_http/acl_req'),
     ok.
 
+parse_host(Host) ->
+    case inet:parse_address(Host) of
+        {ok, Addr} when size(Addr) =:= 4 -> {inet, Addr};
+        {ok, Addr} when size(Addr) =:= 8 -> {inet6, Addr};
+        {error, einval} ->
+            case inet:getaddr(Host, inet6) of
+                {ok, _} -> {inet6, Host};
+                {error, _} -> {inet, Host}
+            end
+    end.
+
 to_lower(Headers) ->
     [{string:to_lower(K), V} || {K, V} <- Headers].
 
diff --git a/apps/emqx_auth_redis/rebar.config b/apps/emqx_auth_redis/rebar.config
index a85b22fd1..72c91aa4e 100644
--- a/apps/emqx_auth_redis/rebar.config
+++ b/apps/emqx_auth_redis/rebar.config
@@ -1,5 +1,5 @@
 {deps,
- [{eredis_cluster, {git, "https://github.com/emqx/eredis_cluster", {tag, "0.6.3"}}}
+ [{eredis_cluster, {git, "https://github.com/emqx/eredis_cluster", {tag, "0.6.4"}}}
  ]}.
 
 {erl_opts, [warn_unused_vars,
diff --git a/apps/emqx_recon/rebar.config b/apps/emqx_recon/rebar.config
index adb1d4c65..1a6f20d2b 100644
--- a/apps/emqx_recon/rebar.config
+++ b/apps/emqx_recon/rebar.config
@@ -1,5 +1,5 @@
 {deps, [
-  {recon, {git, "https://github.com/ferd/recon", {tag, "2.5.0"}}}
+%% recon "https://github.com/ferd/recon" at root rebar.config
 ]}.
 
 {edoc_opts, [{preprocess, true}]}.
diff --git a/apps/emqx_web_hook/src/emqx_web_hook_actions.erl b/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
index cc585d1f1..7e7a901c9 100644
--- a/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
+++ b/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
@@ -340,20 +340,7 @@ pool_opts(Params = #{<<"url">> := URL}) ->
                                   end),
     PoolSize = maps:get(<<"pool_size">>, Params, 32),
     ConnectTimeout = timer:seconds(maps:get(<<"connect_timeout">>, Params, 5)),
-    Host = case inet:parse_address(Host0) of
-                       {ok, {_,_,_,_} = Addr} -> Addr;
-                       {ok, {_,_,_,_,_,_,_,_} = Addr} -> Addr;
-                       {error, einval} -> Host0
-                   end,
-    Inet = case Host of
-               {_,_,_,_} -> inet;
-               {_,_,_,_,_,_,_,_} -> inet6;
-               _ ->
-                   case inet:getaddr(Host, inet6) of
-                       {error, _} -> inet;
-                       {ok, _} -> inet6
-                   end
-           end,
+    {Inet, Host} = parse_host(Host0),
     MoreOpts = case Scheme of
                    "http" ->
                        [{transport_opts, [Inet]}];
@@ -388,3 +375,14 @@ pool_opts(Params = #{<<"url">> := URL}) ->
 
 pool_name(ResId) ->
     list_to_atom("webhook:" ++ str(ResId)).
+
+parse_host(Host) ->
+    case inet:parse_address(Host) of
+        {ok, Addr} when size(Addr) =:= 4 -> {inet, Addr};
+        {ok, Addr} when size(Addr) =:= 8 -> {inet6, Addr};
+        {error, einval} ->
+            case inet:getaddr(Host, inet6) of
+                {ok, _} -> {inet6, Host};
+                {error, _} -> {inet, Host}
+            end
+    end.
diff --git a/apps/emqx_web_hook/src/emqx_web_hook_app.erl b/apps/emqx_web_hook/src/emqx_web_hook_app.erl
index c427d2050..431cb5792 100644
--- a/apps/emqx_web_hook/src/emqx_web_hook_app.erl
+++ b/apps/emqx_web_hook/src/emqx_web_hook_app.erl
@@ -58,20 +58,7 @@ translate_env() ->
                                       _ -> 80
                                   end),
     Path = path(Path0),
-    Host = case inet:parse_address(Host0) of
-                       {ok, {_,_,_,_} = Addr} -> Addr;
-                       {ok, {_,_,_,_,_,_,_,_} = Addr} -> Addr;
-                       {error, einval} -> Host0
-                   end,
-    Inet = case Host of
-                       {_,_,_,_} -> inet;
-                       {_,_,_,_,_,_,_,_} -> inet6;
-                       _ ->
-                           case inet:getaddr(Host, inet6) of
-                               {error, _} -> inet;
-                               {ok, _} -> inet6
-                           end
-                   end,
+    {Inet, Host} = parse_host(Host0),
     PoolSize = application:get_env(?APP, pool_size, 32),
     MoreOpts = case Scheme of
                    "http" ->
@@ -117,3 +104,14 @@ path(Path) ->
 set_content_type(Headers) ->
     NHeaders = proplists:delete(<<"Content-Type">>, proplists:delete(<<"content-type">>, Headers)),
     [{<<"content-type">>, <<"application/json">>} | NHeaders].
+
+parse_host(Host) ->
+    case inet:parse_address(Host) of
+        {ok, Addr} when size(Addr) =:= 4 -> {inet, Addr};
+        {ok, Addr} when size(Addr) =:= 8 -> {inet6, Addr};
+        {error, einval} ->
+            case inet:getaddr(Host, inet6) of
+                {ok, _} -> {inet6, Host};
+                {error, _} -> {inet, Host}
+            end
+    end.
\ No newline at end of file
diff --git a/rebar.config b/rebar.config
index d97511c69..bed07d569 100644
--- a/rebar.config
+++ b/rebar.config
@@ -54,6 +54,7 @@
     , {pbkdf2, {git, "https://github.com/emqx/erlang-pbkdf2.git", {branch, "2.0.4"}}}
     , {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.2.3"}}}
     , {rulesql, {git, "https://github.com/emqx/rulesql", {tag, "0.1.2"}}}
+    , {recon, {git, "https://github.com/ferd/recon", {tag, "2.5.1"}}}
     , {getopt, "1.0.1"}
     ]}.
 
diff --git a/src/emqx_vm.erl b/src/emqx_vm.erl
index e1ab29b8b..5094eea03 100644
--- a/src/emqx_vm.erl
+++ b/src/emqx_vm.erl
@@ -275,14 +275,8 @@ util_alloc()->
     alloc(?UTIL_ALLOCATORS).
 
 alloc(Type) ->
-    [{{T, Instance}, Props} || {{T, Instance}, Props} <- allocators(), lists:member(T, Type)].
-
-allocators() ->
-    UtilAllocators = erlang:system_info(alloc_util_allocators),
-    Allocators = [sys_alloc, mseg_alloc|UtilAllocators],
-    [{{A, N}, lists:sort(proplists:delete(versions, Props))} ||
-        A <- Allocators, Allocs <- [erlang:system_info({allocator, A})],
-            Allocs =/= false, {_, N, Props} <- Allocs].
+    [{{T, Instance}, Props} ||
+     {{T, Instance}, Props} <- recon_alloc:allocators(), lists:member(T, Type)].
 
 container_size(Prop, Keyword, Container) ->
     Sbcs = container_value(Prop, Keyword, sbcs, Container),