diff --git a/internal/querynode/errors.go b/internal/querynode/errors.go
index 95f26df8e8eefa51ff1445d66d100632b080beb7..82569c0f0a8cebb08ce360e4259b4d21ed0e18ca 100644
--- a/internal/querynode/errors.go
+++ b/internal/querynode/errors.go
@@ -1,13 +1,18 @@
-// Copyright (C) 2019-2020 Zilliz. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
+// 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
+//     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.
+// 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 querynode
 
diff --git a/internal/querynode/errors_test.go b/internal/querynode/errors_test.go
index ac26aa6777e5ecbda47c4c1ab3fd64f5bfe3d529..cfacc925b8f750919abb2768aac486829279ff11 100644
--- a/internal/querynode/errors_test.go
+++ b/internal/querynode/errors_test.go
@@ -1,13 +1,18 @@
-// Copyright (C) 2019-2020 Zilliz. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
+// 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
+//     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.
+// 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 querynode
 
diff --git a/internal/querynode/flow_graph_delete_node.go b/internal/querynode/flow_graph_delete_node.go
index ae9d9769ed77eaedf2eb05f40398e0ec4a347ce5..b1869e0a5ca3ccc015a79935c372257eb487314b 100644
--- a/internal/querynode/flow_graph_delete_node.go
+++ b/internal/querynode/flow_graph_delete_node.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 querynode
 
 import (
diff --git a/internal/querynode/flow_graph_delete_node_test.go b/internal/querynode/flow_graph_delete_node_test.go
index 2c88dfc53b487bba3a7a05c80067b681e4287c3e..8bedbc37239c47b6f4ddae801d9a2729d50a78f3 100644
--- a/internal/querynode/flow_graph_delete_node_test.go
+++ b/internal/querynode/flow_graph_delete_node_test.go
@@ -1,13 +1,18 @@
-// Copyright (C) 2019-2020 Zilliz. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
+// 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
+//     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.
+// 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 querynode