From 70e84021f222275f12e91302aab95aeb0a59ea4f Mon Sep 17 00:00:00 2001
From: jabber <jabber@kuku.jabber.ru>
Date: Sun, 17 Apr 2011 06:05:48 +0400
Subject: [PATCH] Remove global lock if there are no nodes available

---
 src/ejabberd_cluster.erl | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/ejabberd_cluster.erl b/src/ejabberd_cluster.erl
index e537e1faa..bc2f85da6 100644
--- a/src/ejabberd_cluster.erl
+++ b/src/ejabberd_cluster.erl
@@ -136,9 +136,13 @@ handle_call(announce, _From, State) ->
 				 {node_ready, node()}, ?REHASH_TIMEOUT),
 	    append_node(?HASHTBL, node()),
 	    register(?MODULE, self()),
-	    gen_server:abcast(OtherNodes -- BadNodes,
-			      ?MODULE, {node_ready, node()}),
-	    erlang:send_after(?MIGRATE_TIMEOUT, self(), del_lock)
+            case OtherNodes -- BadNodes of
+                [] ->
+                    global:del_lock(?LOCK);
+                WorkingNodes ->
+                    gen_server:abcast(WorkingNodes, ?MODULE, {node_ready, node()}),
+                    erlang:send_after(?MIGRATE_TIMEOUT, self(), del_lock)
+            end
     end,
     {reply, ok, State};
 handle_call({node_ready, Node}, _From, State) ->