MB-48047: Kill epmd when joining cluster if required.

Change-Id: Ifab29901b3b9a5a4fde1f4a12f8c180144b34a2d
Reviewed-on: http://review.couchbase.org/c/ns_server/+/165274
Tested-by: Build Bot <[email protected]>
Tested-by: Abhijeeth Nuthan <[email protected]>
Reviewed-by: Timofey Barmin <[email protected]>
Well-Formed: Restriction Checker

Author: anuthan

src/ns_cluster.erl

@@ -1317,6 +1317,7 @@ perform_actual_join(RemoteNode, NewCookie) ->
 
         ok = ns_config_rep:pull_from_one_node_directly(RemoteNode),
         ?cluster_debug("pre-join merged config is:~n~p", [ns_config_log:sanitize(ns_config:get())]),
+        netconfig_updater:maybe_kill_epmd(),
 
         {ok, ok}
     catch