From 737a89d5e851c1a05ce26cbe407ffc6d956bea2d Mon Sep 17 00:00:00 2001
From: turtled <turtled@emqtt.io>
Date: Wed, 14 Dec 2016 18:09:41 +0800
Subject: [PATCH] rm net_adm:ping

---
 src/emqttd_cluster.erl | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/emqttd_cluster.erl b/src/emqttd_cluster.erl
index 33eda2499..d5494a6b9 100644
--- a/src/emqttd_cluster.erl
+++ b/src/emqttd_cluster.erl
@@ -30,12 +30,12 @@ join(Node) when Node =:= node() ->
     {error, {cannot_join_with_self, Node}};
 
 join(Node) when is_atom(Node) ->
-    case {net_adm:ping(Node), is_clustered(Node), emqttd:is_running(Node)} of
-        {pong, false, true} ->
+    case {is_clustered(Node), emqttd:is_running(Node)} of
+        {false, true} ->
             prepare(), ok = emqttd_mnesia:join_cluster(Node), reboot();
-        {_, false, false} ->
+        {false, false} ->
             {error, {node_not_running, Node}};
-        {_, true, _} ->
+        {true, _} ->
             {error, {already_clustered, Node}}
     end.