X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/b7f67c80916c2efa0c234ab5f4e92c24d47223c5..35ade8a042094a27e2ca5cfd5e9754aa3513410c:/services/nodemanager/arvnodeman/timedcallback.py

diff --git a/services/nodemanager/arvnodeman/timedcallback.py b/services/nodemanager/arvnodeman/timedcallback.py
index a1df8ec17b..615f798f5b 100644
--- a/services/nodemanager/arvnodeman/timedcallback.py
+++ b/services/nodemanager/arvnodeman/timedcallback.py
@@ -23,8 +23,9 @@ class TimedCallBackActor(actor_class):
         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: