Add the node_heartbeat signal

apps/clustering/__init__.py

@@ -8,7 +8,7 @@ from navigation.api import bind_links
 from project_tools.api import register_tool
 from project_setup.api import register_setup
 
-from .tasks import node_heartbeat, house_keeping
+from .tasks import send_heartbeat, house_keeping
 from .links import tool_link, node_list, clustering_config_edit, setup_link
 from .models import Node, ClusteringConfig
 
@@ -17,7 +17,7 @@ ClusteringConfig()
 def add_clustering_jobs():
     clustering_scheduler = LocalScheduler('clustering', _(u'Clustering'))
     try:
-        clustering_scheduler.add_interval_job('node_heartbeat', _(u'Update a node\'s properties.'), node_heartbeat, seconds=ClusteringConfig.get().node_heartbeat_interval)
+        clustering_scheduler.add_interval_job('send_heartbeat', _(u'Update a node\'s properties.'), send_heartbeat, seconds=ClusteringConfig.get().node_heartbeat_interval)
         clustering_scheduler.add_interval_job('house_keeping', _(u'Check for unresponsive nodes in the cluster list.'), house_keeping, seconds=ClusteringConfig.get().dead_node_removal_interval)
     except DatabaseError:
         transaction.rollback()

apps/clustering/signals.py

@@ -1,3 +1,4 @@
 from django.dispatch import Signal
 
 node_died = Signal(providing_args=['node'])
+node_heartbeat = Signal(providing_args=['node'])

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)