diff --git a/watcher/applier/actions/loading/default.py b/watcher/applier/actions/loading/default.py
index 3ebab3742..0ec2f933c 100644
--- a/watcher/applier/actions/loading/default.py
+++ b/watcher/applier/actions/loading/default.py
@@ -17,12 +17,8 @@
 
 from __future__ import unicode_literals
 
-from oslo_log import log
-
 from watcher.common.loader import default
 
-LOG = log.getLogger(__name__)
-
 
 class DefaultActionLoader(default.DefaultLoader):
     def __init__(self):
diff --git a/watcher/applier/workflow_engine/loading/default.py b/watcher/applier/workflow_engine/loading/default.py
index 6494987e1..5eba40475 100644
--- a/watcher/applier/workflow_engine/loading/default.py
+++ b/watcher/applier/workflow_engine/loading/default.py
@@ -17,12 +17,8 @@
 
 from __future__ import unicode_literals
 
-from oslo_log import log
-
 from watcher.common.loader import default
 
-LOG = log.getLogger(__name__)
-
 
 class DefaultWorkFlowEngineLoader(default.DefaultLoader):
     def __init__(self):
diff --git a/watcher/common/messaging/notification_handler.py b/watcher/common/messaging/notification_handler.py
index b9aded99f..4c67ab1a1 100644
--- a/watcher/common/messaging/notification_handler.py
+++ b/watcher/common/messaging/notification_handler.py
@@ -15,14 +15,12 @@
 # limitations under the License.
 
 import eventlet
-from oslo_log import log
 import oslo_messaging as messaging
 
 from watcher.common.messaging.utils import observable
 
 
 eventlet.monkey_patch()
-LOG = log.getLogger(__name__)
 
 
 class NotificationHandler(observable.Observable):
diff --git a/watcher/db/sqlalchemy/api.py b/watcher/db/sqlalchemy/api.py
index e87661365..f5eaecbcf 100644
--- a/watcher/db/sqlalchemy/api.py
+++ b/watcher/db/sqlalchemy/api.py
@@ -21,7 +21,6 @@ from oslo_config import cfg
 from oslo_db import exception as db_exc
 from oslo_db.sqlalchemy import session as db_session
 from oslo_db.sqlalchemy import utils as db_utils
-from oslo_log import log
 from sqlalchemy.orm import exc
 
 from watcher import _i18n
@@ -35,7 +34,6 @@ from watcher.objects import audit as audit_objects
 from watcher.objects import utils as objutils
 
 CONF = cfg.CONF
-LOG = log.getLogger(__name__)
 _ = _i18n._
 
 _FACADE = None
diff --git a/watcher/decision_engine/manager.py b/watcher/decision_engine/manager.py
index 90f597189..56446e26d 100644
--- a/watcher/decision_engine/manager.py
+++ b/watcher/decision_engine/manager.py
@@ -38,13 +38,11 @@ See :doc:`../architecture` for more details on this component.
 """
 
 from oslo_config import cfg
-from oslo_log import log
 
 from watcher.common.messaging import messaging_core
 from watcher.decision_engine.messaging import audit_endpoint
 
 
-LOG = log.getLogger(__name__)
 CONF = cfg.CONF
 
 WATCHER_DECISION_ENGINE_OPTS = [
diff --git a/watcher/decision_engine/model/model_root.py b/watcher/decision_engine/model/model_root.py
index eb5cda841..5ec65f9b1 100644
--- a/watcher/decision_engine/model/model_root.py
+++ b/watcher/decision_engine/model/model_root.py
@@ -13,16 +13,12 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from oslo_log import log
-
 from watcher._i18n import _
 from watcher.common import exception
 from watcher.decision_engine.model import hypervisor
 from watcher.decision_engine.model import mapping
 from watcher.decision_engine.model import vm
 
-LOG = log.getLogger(__name__)
-
 
 class ModelRoot(object):
     def __init__(self):
diff --git a/watcher/decision_engine/planner/loading/default.py b/watcher/decision_engine/planner/loading/default.py
index 010d8341c..c8896de39 100644
--- a/watcher/decision_engine/planner/loading/default.py
+++ b/watcher/decision_engine/planner/loading/default.py
@@ -17,12 +17,8 @@
 
 from __future__ import unicode_literals
 
-from oslo_log import log
-
 from watcher.common.loader.default import DefaultLoader
 
-LOG = log.getLogger(__name__)
-
 
 class DefaultPlannerLoader(DefaultLoader):
     def __init__(self):
diff --git a/watcher/decision_engine/rpcapi.py b/watcher/decision_engine/rpcapi.py
index 47b0124b4..ddfa36103 100644
--- a/watcher/decision_engine/rpcapi.py
+++ b/watcher/decision_engine/rpcapi.py
@@ -18,7 +18,6 @@
 #
 
 from oslo_config import cfg
-from oslo_log import log
 
 from watcher.common import exception
 from watcher.common.messaging import messaging_core
@@ -28,7 +27,6 @@ from watcher.decision_engine.manager import decision_engine_opt_group
 from watcher.decision_engine.manager import WATCHER_DECISION_ENGINE_OPTS
 
 
-LOG = log.getLogger(__name__)
 CONF = cfg.CONF
 
 CONF.register_group(decision_engine_opt_group)
diff --git a/watcher/decision_engine/solution/default.py b/watcher/decision_engine/solution/default.py
index aa0a06337..9784c3525 100644
--- a/watcher/decision_engine/solution/default.py
+++ b/watcher/decision_engine/solution/default.py
@@ -16,14 +16,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-from oslo_log import log
-
 from watcher.applier.actions import base as baction
 from watcher.common import exception
 from watcher.decision_engine.solution import base
 
-LOG = log.getLogger(__name__)
-
 
 class DefaultSolution(base.BaseSolution):
     def __init__(self):
diff --git a/watcher/decision_engine/strategy/loading/default.py b/watcher/decision_engine/strategy/loading/default.py
index 9059bf617..d44b893da 100644
--- a/watcher/decision_engine/strategy/loading/default.py
+++ b/watcher/decision_engine/strategy/loading/default.py
@@ -19,12 +19,9 @@
 
 from __future__ import unicode_literals
 
-from oslo_log import log
 
 from watcher.common.loader import default
 
-LOG = log.getLogger(__name__)
-
 
 class DefaultStrategyLoader(default.DefaultLoader):
     def __init__(self):
diff --git a/watcher/decision_engine/strategy/strategies/base.py b/watcher/decision_engine/strategy/strategies/base.py
index 375ae5336..20ca17cb5 100644
--- a/watcher/decision_engine/strategy/strategies/base.py
+++ b/watcher/decision_engine/strategy/strategies/base.py
@@ -37,16 +37,12 @@ which are dynamically loaded by Watcher at launch time.
 """
 
 import abc
-
-from oslo_log import log
 import six
 
 from watcher.common import clients
 from watcher.decision_engine.solution import default
 from watcher.decision_engine.strategy.common import level
 
-LOG = log.getLogger(__name__)
-
 
 @six.add_metaclass(abc.ABCMeta)
 class BaseStrategy(object):
diff --git a/watcher/metrics_engine/cluster_history/ceilometer.py b/watcher/metrics_engine/cluster_history/ceilometer.py
index 56b29ddad..83e0c03fb 100644
--- a/watcher/metrics_engine/cluster_history/ceilometer.py
+++ b/watcher/metrics_engine/cluster_history/ceilometer.py
@@ -19,13 +19,11 @@
 
 
 from oslo_config import cfg
-from oslo_log import log
 from watcher.common import ceilometer_helper
 
 from watcher.metrics_engine.cluster_history import base
 
 CONF = cfg.CONF
-LOG = log.getLogger(__name__)
 
 
 class CeilometerClusterHistory(base.BaseClusterHistory):
diff --git a/watcher/metrics_engine/cluster_model_collector/manager.py b/watcher/metrics_engine/cluster_model_collector/manager.py
index 752737e3a..a65d0e0bc 100644
--- a/watcher/metrics_engine/cluster_model_collector/manager.py
+++ b/watcher/metrics_engine/cluster_model_collector/manager.py
@@ -18,13 +18,11 @@
 #
 
 from oslo_config import cfg
-from oslo_log import log
 
 from watcher.common import nova_helper
 from watcher.metrics_engine.cluster_model_collector import nova as cnova
 
 
-LOG = log.getLogger(__name__)
 CONF = cfg.CONF