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-rw-r--r--nova/scheduler/driver.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/nova/scheduler/driver.py b/nova/scheduler/driver.py
index 2e6a5a835..c89d25a47 100644
--- a/nova/scheduler/driver.py
+++ b/nova/scheduler/driver.py
@@ -42,7 +42,8 @@ class Scheduler(object):
def service_is_up(service):
"""Check whether a service is up based on last heartbeat."""
last_heartbeat = service['updated_at'] or service['created_at']
- elapsed = datetime.datetime.now() - last_heartbeat
+ # Timestamps in DB are UTC.
+ elapsed = datetime.datetime.utcnow() - last_heartbeat
return elapsed < datetime.timedelta(seconds=FLAGS.service_down_time)
def hosts_up(self, context, topic):