Add the node_heartbeat signal

apps/clustering/tasks.py

@@ -5,6 +5,7 @@ import logging
 from lock_manager.decorators import simple_locking
 
 from .models import Node, ClusteringConfig
+from .signals import node_heartbeat
 
 LOCK_EXPIRE = 10
 
@@ -12,10 +13,11 @@ logger = logging.getLogger(__name__)
 
 
 @simple_locking('node_heartbeat', 10)
-def node_heartbeat():
+def send_heartbeat():
     logger.debug('starting')
     node = Node.objects.myself()
     node.send_heartbeat()
+    node_heartbeat.send(sender=node, node=node)
 
 
 @simple_locking('house_keeping', 10)