def test_change_agent_id_with_inactive_node(self):
"""Tests the NodeManager where a registered node changes its agent ID, and the node is inactive"""
manager = NodeManager()
manager.register_agents([self.agent_1, self.agent_2])
manager.sync_with_database(scheduler_mgr.config)
# Node 2 is now inactive
Node.objects.filter(
id=manager.get_node(self.agent_2.agent_id).id).update(
is_active=False)
manager.sync_with_database(scheduler_mgr.config)
manager.lost_node(self.agent_2.agent_id)
manager.register_agents([self.agent_3])
manager.sync_with_database(scheduler_mgr.config)
# Make sure two nodes are registered, one for agent 1 and one for agent 3, and both are online
nodes = manager.get_nodes()
self.assertEqual(len(nodes), 2)
node_1 = manager.get_node(self.agent_1.agent_id)
self.assertEqual(node_1.hostname, self.node_1.hostname)
self.assertTrue(node_1._is_online)
self.assertIsNone(manager.get_node(self.agent_2.agent_id))
node_2 = manager.get_node(self.agent_3.agent_id)
self.assertEqual(node_2.hostname, 'host_2')
self.assertTrue(node_2._is_online)
self.assertFalse(node_2._is_active)
def test_lost_known_node(self):
"""Tests the NodeManager where a known node was lost"""
manager = NodeManager()
manager.register_agents([self.agent_1, self.agent_2])
manager.sync_with_database(scheduler_mgr.config)
manager.lost_node(self.agent_2.agent_id)
nodes = manager.get_nodes()
self.assertEqual(len(nodes), 2)
node_1 = manager.get_node(self.agent_1.agent_id)
self.assertTrue(node_1._is_online)
node_2 = manager.get_node(self.agent_2.agent_id)
self.assertFalse(node_2._is_online)
def test_lost_unknown_node(self):
"""Tests the NodeManager where an unknown node was lost"""
manager = NodeManager()
manager.register_agents([self.agent_1, self.agent_2])
manager.lost_node(self.agent_2.agent_id)
manager.sync_with_database(scheduler_mgr.config)
# Unknown node 2 was lost before syncing with database, it should not appear in the manager
nodes = manager.get_nodes()
self.assertEqual(len(nodes), 1)
node_1 = manager.get_node(self.agent_1.agent_id)
self.assertEqual(node_1.hostname, self.node_1.hostname)
self.assertTrue(node_1._is_online)
self.assertIsNone(manager.get_node(self.agent_2.agent_id))
def test_no_job_exe_no_offers(self):
"""Tests the NodeManager where a node is not running an exe and has not given offers to Scale in 1 hour.
Expected behavior: The node is deleted and the DB model is update with is_active=False"""
last_offer = now() - datetime.timedelta(hours=1)
node_mgr = NodeManager()
node_mgr.register_agents([self.agent_1])
node_mgr.sync_with_database(scheduler_mgr.config)
# Set last_offer_received to 1 hour ago
Node.objects.filter(id=self.node_1.id).update(last_offer_received=last_offer)
# This inspects what nodes are running jobs and what nodes need to be removed if they
# have not sent offers in the last 5 minutes
node_mgr.sync_with_database(scheduler_mgr.config)
# Get the DB state
db_record = Node.objects.get(id=self.node_1.id)
self.assertIsNone(node_mgr.get_node(self.agent_1.agent_id))
self.assertEqual(db_record.is_active, False)