Add state field to node class

apps/clustering/literals.py

@@ -1,3 +1,15 @@
+from django.utils.translation import ugettext_lazy as _
+
 DEFAULT_NODE_HEARTBEAT_INTERVAL = 10
 DEFAULT_NODE_HEARTBEAT_TIMEOUT = 60
 DEFAULT_DEAD_NODE_REMOVAL_INTERVAL = 10
+
+NODE_STATE_HEALTHY = 'h'
+NODE_STATE_DEAD = 'd'
+
+NODE_STATE_CHOICES = (
+    (NODE_STATE_HEALTHY, _(u'healthy')),
+    (NODE_STATE_DEAD, _(u'dead')),
+)
+
+DEFAULT_JOB_QUEUE_POLL_INTERVAL = 2