X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/b7f67c80916c2efa0c234ab5f4e92c24d47223c5..795125d3d998bc1fdbaf31d7d3dd048564f8e685:/services/nodemanager/arvnodeman/timedcallback.py

diff --git a/services/nodemanager/arvnodeman/timedcallback.py b/services/nodemanager/arvnodeman/timedcallback.py
index a1df8ec17b..12d6280873 100644
--- a/services/nodemanager/arvnodeman/timedcallback.py
+++ b/services/nodemanager/arvnodeman/timedcallback.py
@@ -18,13 +18,14 @@ class TimedCallBackActor(actor_class):
     """
     def __init__(self, max_sleep=1):
         super(TimedCallBackActor, self).__init__()
-        self._proxy = self.actor_ref.proxy()
+        self._proxy = self.actor_ref.tell_proxy()
         self.messages = []
         self.max_sleep = max_sleep
 
     def schedule(self, delivery_time, receiver, *args, **kwargs):
+        if not self.messages:
+            self._proxy.deliver()
         heapq.heappush(self.messages, (delivery_time, receiver, args, kwargs))
-        self._proxy.deliver()
 
     def deliver(self):
         if not self.messages: