diff --git a/doc/notification_samples/instance-reboot-end.json b/doc/notification_samples/instance-reboot-end.json
index f2700dbe02..03b2004913 100644
--- a/doc/notification_samples/instance-reboot-end.json
+++ b/doc/notification_samples/instance-reboot-end.json
@@ -2,7 +2,7 @@
     "event_type":"instance.reboot.end",
     "payload":{
         "nova_object.data":{
-            "architecture":null,
+            "architecture": "x86_64",
             "availability_zone": "nova",
             "created_at":"2012-10-29T13:42:11Z",
             "deleted_at":null,
@@ -28,7 +28,7 @@
             "auto_disk_config":"MANUAL",
             "kernel_id":"",
             "launched_at":"2012-10-29T13:42:11Z",
-            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
+            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
             "metadata":{},
             "locked":false,
             "node":"fake-mini",
diff --git a/doc/notification_samples/instance-reboot-error.json b/doc/notification_samples/instance-reboot-error.json
index c54a440c96..bdeb6095f4 100644
--- a/doc/notification_samples/instance-reboot-error.json
+++ b/doc/notification_samples/instance-reboot-error.json
@@ -2,7 +2,7 @@
     "event_type":"instance.reboot.error",
     "payload":{
         "nova_object.data":{
-            "architecture": null,
+            "architecture": "x86_64",
             "availability_zone": "nova",
             "created_at":"2012-10-29T13:42:11Z",
             "deleted_at":null,
@@ -38,7 +38,7 @@
             "auto_disk_config":"MANUAL",
             "kernel_id":"",
             "launched_at":"2012-10-29T13:42:11Z",
-            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
+            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
             "metadata":{},
             "locked":false,
             "node":"fake-mini",
diff --git a/doc/notification_samples/instance-reboot-start.json b/doc/notification_samples/instance-reboot-start.json
index 16538f17d0..ecfac7cda4 100644
--- a/doc/notification_samples/instance-reboot-start.json
+++ b/doc/notification_samples/instance-reboot-start.json
@@ -2,7 +2,7 @@
     "event_type":"instance.reboot.start",
     "payload":{
         "nova_object.data":{
-            "architecture":null,
+            "architecture": "x86_64",
             "availability_zone": "nova",
             "created_at":"2012-10-29T13:42:11Z",
             "deleted_at":null,
@@ -28,7 +28,7 @@
             "auto_disk_config":"MANUAL",
             "kernel_id":"",
             "launched_at":"2012-10-29T13:42:11Z",
-            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
+            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
             "metadata":{},
             "locked":false,
             "node":"fake-mini",
diff --git a/doc/notification_samples/instance-volume_attach-end.json b/doc/notification_samples/instance-volume_attach-end.json
index a8161b2930..26d01f4d7d 100644
--- a/doc/notification_samples/instance-volume_attach-end.json
+++ b/doc/notification_samples/instance-volume_attach-end.json
@@ -2,7 +2,7 @@
     "event_type": "instance.volume_attach.end",
     "payload": {
         "nova_object.data": {
-            "architecture": null,
+            "architecture": "x86_64",
             "availability_zone": "nova",
             "created_at": "2012-10-29T13:42:11Z",
             "deleted_at": null,
@@ -33,7 +33,7 @@
             },
             "host": "compute",
             "host_name": "some-server",
-            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
+            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
             "ip_addresses": [{
                 "nova_object.data": {
                     "address": "192.168.1.3",
diff --git a/doc/notification_samples/instance-volume_attach-error.json b/doc/notification_samples/instance-volume_attach-error.json
index 425674a849..fa52c20445 100644
--- a/doc/notification_samples/instance-volume_attach-error.json
+++ b/doc/notification_samples/instance-volume_attach-error.json
@@ -2,7 +2,7 @@
     "event_type": "instance.volume_attach.error",
     "payload": {
         "nova_object.data": {
-            "architecture": null,
+            "architecture": "x86_64",
             "availability_zone": "nova",
             "created_at": "2012-10-29T13:42:11Z",
             "deleted_at": null,
@@ -43,7 +43,7 @@
             },
             "host": "compute",
             "host_name": "some-server",
-            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
+            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
             "ip_addresses": [{
                 "nova_object.data": {
                     "address": "192.168.1.3",
diff --git a/doc/notification_samples/instance-volume_attach-start.json b/doc/notification_samples/instance-volume_attach-start.json
index e0fa8cac59..2f68f06840 100644
--- a/doc/notification_samples/instance-volume_attach-start.json
+++ b/doc/notification_samples/instance-volume_attach-start.json
@@ -2,7 +2,7 @@
     "event_type": "instance.volume_attach.start",
     "payload": {
         "nova_object.data": {
-            "architecture": null,
+            "architecture": "x86_64",
             "availability_zone": "nova",
             "created_at": "2012-10-29T13:42:11Z",
             "deleted_at": null,
@@ -33,7 +33,7 @@
             },
             "host": "compute",
             "host_name": "some-server",
-            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
+            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
             "ip_addresses": [{
                 "nova_object.data": {
                     "address": "192.168.1.3",
diff --git a/doc/notification_samples/instance-volume_detach-end.json b/doc/notification_samples/instance-volume_detach-end.json
index f06ff24d79..37b5e465d1 100644
--- a/doc/notification_samples/instance-volume_detach-end.json
+++ b/doc/notification_samples/instance-volume_detach-end.json
@@ -2,7 +2,7 @@
     "event_type": "instance.volume_detach.end",
     "payload": {
         "nova_object.data": {
-            "architecture": null,
+            "architecture": "x86_64",
             "availability_zone": "nova",
             "created_at": "2012-10-29T13:42:11Z",
             "deleted_at": null,
@@ -33,7 +33,7 @@
             },
             "host": "compute",
             "host_name": "some-server",
-            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
+            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
             "ip_addresses": [{
                 "nova_object.data": {
                     "address": "192.168.1.3",
diff --git a/doc/notification_samples/instance-volume_detach-start.json b/doc/notification_samples/instance-volume_detach-start.json
index ab2d263b75..798975646d 100644
--- a/doc/notification_samples/instance-volume_detach-start.json
+++ b/doc/notification_samples/instance-volume_detach-start.json
@@ -2,7 +2,7 @@
     "event_type": "instance.volume_detach.start",
     "payload": {
         "nova_object.data": {
-            "architecture": null,
+            "architecture": "x86_64",
             "availability_zone": "nova",
             "created_at": "2012-10-29T13:42:11Z",
             "deleted_at": null,
@@ -33,7 +33,7 @@
             },
             "host": "compute",
             "host_name": "some-server",
-            "image_uuid": "a2459075-d96c-40d5-893e-577ff92e721c",
+            "image_uuid": "155d900f-4e14-4e4c-a73d-069cbf4541e6",
             "ip_addresses": [{
                 "nova_object.data": {
                     "address": "192.168.1.3",
diff --git a/nova/tests/functional/notification_sample_tests/test_instance.py b/nova/tests/functional/notification_sample_tests/test_instance.py
index 38037d4f3a..c8dca3cdc9 100644
--- a/nova/tests/functional/notification_sample_tests/test_instance.py
+++ b/nova/tests/functional/notification_sample_tests/test_instance.py
@@ -75,7 +75,6 @@ class TestInstanceNotificationSample(
             self._test_revert_server,
             self._test_resize_confirm_server,
             self._test_snapshot_server,
-            self._test_rebuild_server,
             self._test_reboot_server,
             self._test_reboot_server_error,
             self._test_trigger_crash_dump,
@@ -560,7 +559,17 @@ class TestInstanceNotificationSample(
                 'uuid': server['id']},
             actual=fake_notifier.VERSIONED_NOTIFICATIONS[1])
 
-    def _test_rebuild_server(self, server):
+    def test_rebuild_server(self):
+        # NOTE(gabor_antal): Rebuild changes the image used by the instance,
+        # therefore the actions tested in test_instance_action had to be in
+        # specific order. To avoid this problem, rebuild was moved from
+        # test_instance_action to its own method.
+
+        server = self._boot_a_server(
+            extra_params={'networks': [{'port': self.neutron.port_1['id']}]})
+
+        fake_notifier.reset()
+
         post = {
             'rebuild': {
                 'imageRef': 'a2459075-d96c-40d5-893e-577ff92e721c',