diff --git a/synergy_scheduler_manager/nova_manager.py b/synergy_scheduler_manager/nova_manager.py
index b8ff99d..aeb2512 100644
--- a/synergy_scheduler_manager/nova_manager.py
+++ b/synergy_scheduler_manager/nova_manager.py
@@ -668,6 +668,25 @@ class NovaManager(Manager):
 
         return response_data
 
+    def setServerMetadata(self, server, key, value):
+        if not server:
+            return
+
+        id = server.getId()
+        data = {"metadata": {key: value}}
+        url = "servers/%s/metadata" % id
+
+        try:
+            response_data = self.getResource(url, "POST", data)
+        except requests.exceptions.HTTPError as ex:
+            raise SynergyError("error on setting the metadata (id=%r)"
+                               ": %s" % (id, ex.response.json()))
+
+        if response_data:
+            response_data = response_data["metadata"]
+
+        return response_data
+
     def getHosts(self):
         data = {}
         url = "os-hosts"
@@ -709,7 +728,6 @@ class NovaManager(Manager):
         try:
             response_data = self.getResource(url, "GET", data)
         except requests.exceptions.HTTPError as ex:
-            LOG.info(ex)
             response = ex.response.json()
             raise SynergyError("error on retrieving the hypervisors list: %s"
                                % response["badRequest"]["message"])
@@ -1048,7 +1066,6 @@ where instance_uuid='%(id)s' and deleted_at is NULL""" % {"id": server.getId()}
                 server.setMetadata(metadata)
 
                 servers.append(server)
-
         except SQLAlchemyError as ex:
             raise SynergyError(ex.message)
         finally:
diff --git a/synergy_scheduler_manager/scheduler_manager.py b/synergy_scheduler_manager/scheduler_manager.py
index e38d6de..8f807f6 100644
--- a/synergy_scheduler_manager/scheduler_manager.py
+++ b/synergy_scheduler_manager/scheduler_manager.py
@@ -1,7 +1,10 @@
 import logging
+import time
 
 from common.quota import SharedQuota
 from common.request import Request
+from datetime import datetime
+from datetime import timedelta
 from oslo_config import cfg
 from synergy.common.manager import Manager
 from synergy.exception import SynergyError
@@ -259,15 +262,25 @@ class SchedulerManager(Manager):
                 project.setQueue(self.queue)
 
     def _processServerEvent(self, server, event, state):
+        project = self.project_manager.getProject(id=server.getProjectId())
+
+        if not project:
+            return
+
         if event == "compute.instance.create.end" and state == "active":
             LOG.info("the server %s is now active on host %s"
                      % (server.getId(), server.getHost()))
+
+            now = datetime.now()
+            expiration = now + timedelta(minutes=project.getTTL())
+            expiration = time.mktime(expiration.timetuple())
+            expiration = str(expiration)[:-2]
+
+            self.nova_manager.setServerMetadata(server,
+                                                "expiration_time",
+                                                expiration)
+
         else:
-            project = self.project_manager.getProject(id=server.getProjectId())
-
-            if not project:
-                return
-
             quota = project.getQuota()
 
             if event == "compute.instance.delete.end":
@@ -378,6 +391,6 @@ class SchedulerManager(Manager):
                                                    priority))
             else:
                 self.nova_manager.buildServer(request)
-        except SynergyError as ex:
+        except Exception as ex:
             LOG.error("Exception has occured", exc_info=1)
             LOG.error(ex)