diff --git a/internal/distributed/connection_manager.go b/internal/distributed/connection_manager.go
index 2ee1264e5530a10a0e21f026bbb64c865c4f0766..5becd5b416266ba528b3a7676f8dc601551d95da 100644
--- a/internal/distributed/connection_manager.go
+++ b/internal/distributed/connection_manager.go
@@ -1,3 +1,19 @@
+// Licensed to the LF AI & Data foundation under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package distributed
 
 import (
diff --git a/internal/distributed/connection_manager_test.go b/internal/distributed/connection_manager_test.go
index 491ce79d119a4429d387729655e377983da95c15..69391969dbc47badd6453edd62c3bc261d3dadd3 100644
--- a/internal/distributed/connection_manager_test.go
+++ b/internal/distributed/connection_manager_test.go
@@ -1,3 +1,19 @@
+// Licensed to the LF AI & Data foundation under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package distributed
 
 import (