vm: fix garbage collector

circle/vm/models/instance.py

@@ -616,21 +616,23 @@ class Instance(AclBase, VirtualMachineDescModel, TimeStampedModel):
         interval what the Lease allows. This rate is configurable with the
         only parameter, threshold (0.1 = 10% by default).
         """
-        return (self._is_suspend_expiring(self, threshold) or
-                self._is_delete_expiring(self, threshold))
+        return (self._is_suspend_expiring(threshold) or
+                self._is_delete_expiring(threshold))
 
     def _is_suspend_expiring(self, threshold=0.1):
         interval = self.lease.suspend_interval
-        if interval is not None:
-            limit = timezone.now() + threshold * self.lease.suspend_interval
+        if self.time_of_suspend is not None and interval is not None:
+            limit = timezone.now() + timedelta(seconds=(
+                threshold * self.lease.suspend_interval.total_seconds()))
             return limit > self.time_of_suspend
         else:
             return False
 
     def _is_delete_expiring(self, threshold=0.1):
         interval = self.lease.delete_interval
-        if interval is not None:
-            limit = timezone.now() + threshold * self.lease.delete_interval
+        if self.time_of_delete is not None and interval is not None:
+            limit = timezone.now() + timedelta(seconds=(
+                threshold * self.lease.delete_interval.total_seconds()))
             return limit > self.time_of_delete
         else:
             return False

circle/vm/tasks/local_periodic_tasks.py

@@ -26,7 +26,7 @@ def garbage_collector(timeout=15):
     """
     now = timezone.now()
     for i in Instance.objects.filter(destroyed=None).all():
-        if i.time_of_delete and now < i.time_of_delete:
+        if i.time_of_delete and now > i.time_of_delete:
             i.destroy_async()
             logger.info("Expired instance %d destroyed.", i.pk)
             try:
@@ -37,7 +37,7 @@ def garbage_collector(timeout=15):
             except Exception as e:
                 logger.debug('Could not notify owner of instance %d .%s',
                              i.pk, unicode(e))
-        elif (i.time_of_suspend and now < i.time_of_suspend and
+        elif (i.time_of_suspend and now > i.time_of_suspend and
               i.state == 'RUNNING'):
             i.sleep_async()
             logger.info("Expired instance %d suspended." % i.pk)