Don't show diagnostics after "node already running" since diagnostics are meant to be about *not* being able to connect to a node.

1 files changed, 5 insertions, 6 deletions

diff --git a/src/rabbit_prelaunch.erl b/src/rabbit_prelaunch.erl
index 4037ed4410..5e2ef1e883 100644
--- a/src/rabbit_prelaunch.erl
+++ b/src/rabbit_prelaunch.erl
@@ -44,7 +44,7 @@ start() ->
         [NodeStr] ->
             Node = rabbit_nodes:make(NodeStr),
             {NodeName, NodeHost} = rabbit_nodes:parts(Node),
-            ok = duplicate_node_check(Node, NodeName, NodeHost),
+            ok = duplicate_node_check(NodeName, NodeHost),
             ok = dist_port_set_check(),
             ok = dist_port_use_check(NodeHost);
         [] ->
@@ -61,14 +61,13 @@ stop() ->
 %%----------------------------------------------------------------------------
 
 %% Check whether a node with the same name is already running
-duplicate_node_check(Node, NodeName, NodeHost) ->
+duplicate_node_check(NodeName, NodeHost) ->
     case rabbit_nodes:names(NodeHost) of
         {ok, NamePorts}  ->
             case proplists:is_defined(NodeName, NamePorts) of
-                true -> io:format("ERROR: node with name ~p "
-                                  "already running on ~p~n",
-                                  [NodeName, NodeHost]),
-                        io:format(rabbit_nodes:diagnostics([Node]) ++ "~n"),
+                true -> io:format(
+                          "ERROR: node with name ~p already running on ~p~n",
+                          [NodeName, NodeHost]),
                         rabbit_misc:quit(?ERROR_CODE);
                 false -> ok
             end;