diff --git a/monasca_api/common/repositories/fake/metrics_repository.py b/monasca_api/common/repositories/fake/metrics_repository.py
index 38af13728..545bcd343 100644
--- a/monasca_api/common/repositories/fake/metrics_repository.py
+++ b/monasca_api/common/repositories/fake/metrics_repository.py
@@ -12,12 +12,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from oslo_log import log
-
 from monasca_api.common.repositories import metrics_repository
 
-LOG = log.getLogger(__name__)
-
 
 class MetricsRepository(metrics_repository.AbstractMetricsRepository):
     def __init__(self):
diff --git a/monasca_api/common/repositories/mysql/notification_method_type_repository.py b/monasca_api/common/repositories/mysql/notification_method_type_repository.py
index 4c636a31e..cea45ec8e 100644
--- a/monasca_api/common/repositories/mysql/notification_method_type_repository.py
+++ b/monasca_api/common/repositories/mysql/notification_method_type_repository.py
@@ -14,12 +14,9 @@
 
 
 from monasca_common.repositories.mysql import mysql_repository
-from oslo_log import log
 
 from monasca_api.common.repositories import notification_method_type_repository as nr
 
-LOG = log.getLogger(__name__)
-
 
 class NotificationMethodTypeRepository(mysql_repository.MySQLRepository,
                                        nr.NotificationMethodTypeRepository):
diff --git a/monasca_api/common/repositories/mysql/notifications_repository.py b/monasca_api/common/repositories/mysql/notifications_repository.py
index 0f21d574f..6dabf99b4 100644
--- a/monasca_api/common/repositories/mysql/notifications_repository.py
+++ b/monasca_api/common/repositories/mysql/notifications_repository.py
@@ -15,14 +15,11 @@
 import datetime
 
 from monasca_common.repositories.mysql import mysql_repository
-from oslo_log import log
 from oslo_utils import uuidutils
 
 from monasca_api.common.repositories import exceptions
 from monasca_api.common.repositories import notifications_repository as nr
 
-LOG = log.getLogger(__name__)
-
 
 class NotificationsRepository(mysql_repository.MySQLRepository,
                               nr.NotificationsRepository):
diff --git a/monasca_api/common/repositories/sqla/alarm_definitions_repository.py b/monasca_api/common/repositories/sqla/alarm_definitions_repository.py
index 1b3026552..9e8a9e40d 100644
--- a/monasca_api/common/repositories/sqla/alarm_definitions_repository.py
+++ b/monasca_api/common/repositories/sqla/alarm_definitions_repository.py
@@ -15,7 +15,6 @@
 
 import datetime
 
-from oslo_log import log
 from oslo_utils import uuidutils
 
 from monasca_api.common.repositories import alarm_definitions_repository as adr
@@ -28,9 +27,6 @@ from sqlalchemy import select, text, bindparam, null, literal_column
 from sqlalchemy import or_
 
 
-LOG = log.getLogger(__name__)
-
-
 class AlarmDefinitionsRepository(sql_repository.SQLRepository,
                                  adr.AlarmDefinitionsRepository):
 
diff --git a/monasca_api/common/repositories/sqla/alarms_repository.py b/monasca_api/common/repositories/sqla/alarms_repository.py
index 548da0e83..d106cdd48 100644
--- a/monasca_api/common/repositories/sqla/alarms_repository.py
+++ b/monasca_api/common/repositories/sqla/alarms_repository.py
@@ -18,8 +18,6 @@
 from datetime import datetime
 from time import time
 
-from oslo_log import log
-
 from monasca_api.common.repositories import alarms_repository
 from monasca_api.common.repositories import exceptions
 from monasca_api.common.repositories.sqla import models
@@ -28,9 +26,6 @@ from sqlalchemy import MetaData, update, delete, select, text, bindparam, func,
 from sqlalchemy import or_
 
 
-LOG = log.getLogger(__name__)
-
-
 class AlarmsRepository(sql_repository.SQLRepository,
                        alarms_repository.AlarmsRepository):
 
diff --git a/monasca_api/common/repositories/sqla/notification_method_type_repository.py b/monasca_api/common/repositories/sqla/notification_method_type_repository.py
index 9a64d9caf..01f371d55 100644
--- a/monasca_api/common/repositories/sqla/notification_method_type_repository.py
+++ b/monasca_api/common/repositories/sqla/notification_method_type_repository.py
@@ -16,12 +16,9 @@
 from monasca_api.common.repositories import notification_method_type_repository as nr
 from monasca_api.common.repositories.sqla import models
 from monasca_api.common.repositories.sqla import sql_repository
-from oslo_log import log
 from sqlalchemy import MetaData
 from sqlalchemy import select
 
-LOG = log.getLogger(__name__)
-
 
 class NotificationMethodTypeRepository(sql_repository.SQLRepository,
                                        nr.NotificationMethodTypeRepository):
diff --git a/monasca_api/common/repositories/sqla/notifications_repository.py b/monasca_api/common/repositories/sqla/notifications_repository.py
index bd69e9d0b..a440a46cd 100644
--- a/monasca_api/common/repositories/sqla/notifications_repository.py
+++ b/monasca_api/common/repositories/sqla/notifications_repository.py
@@ -15,7 +15,6 @@
 
 import datetime
 
-from oslo_log import log
 from oslo_utils import uuidutils
 
 from monasca_api.common.repositories import exceptions
@@ -25,8 +24,6 @@ from monasca_api.common.repositories.sqla import sql_repository
 from sqlalchemy import MetaData, update, insert, delete
 from sqlalchemy import select, bindparam, func, and_, literal_column
 
-LOG = log.getLogger(__name__)
-
 
 class NotificationsRepository(sql_repository.SQLRepository,
                               nr.NotificationsRepository):
diff --git a/monasca_api/v2/reference/notificationstype.py b/monasca_api/v2/reference/notificationstype.py
index 128009dad..9851ce4ee 100644
--- a/monasca_api/v2/reference/notificationstype.py
+++ b/monasca_api/v2/reference/notificationstype.py
@@ -15,14 +15,11 @@
 import falcon
 from monasca_common.simport import simport
 from oslo_config import cfg
-from oslo_log import log
 
 from monasca_api.api import notificationstype_api_v2
 from monasca_api.v2.reference import helpers
 from monasca_api.v2.reference import resource
 
-LOG = log.getLogger(__name__)
-
 
 class NotificationsType(notificationstype_api_v2.NotificationsTypeV2API):
     def __init__(self):