diff --git a/internal/util/flowgraph/flow_graph.go b/internal/util/flowgraph/flow_graph.go
index 9e342e74dd..84a0c42c19 100644
--- a/internal/util/flowgraph/flow_graph.go
+++ b/internal/util/flowgraph/flow_graph.go
@@ -1,3 +1,14 @@
+// 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
+// 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 flowgraph
 
 import (
diff --git a/internal/util/flowgraph/flow_graph_test.go b/internal/util/flowgraph/flow_graph_test.go
index 8c4306c6a9..6a89c11bf5 100644
--- a/internal/util/flowgraph/flow_graph_test.go
+++ b/internal/util/flowgraph/flow_graph_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 flowgraph
 
 import (
diff --git a/internal/util/flowgraph/input_node.go b/internal/util/flowgraph/input_node.go
index c00fa40a50..9416143fe6 100644
--- a/internal/util/flowgraph/input_node.go
+++ b/internal/util/flowgraph/input_node.go
@@ -1,3 +1,14 @@
+// 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
+// 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 flowgraph
 
 import (
diff --git a/internal/util/flowgraph/message.go b/internal/util/flowgraph/message.go
index 62785bdce1..d3350fb6d9 100644
--- a/internal/util/flowgraph/message.go
+++ b/internal/util/flowgraph/message.go
@@ -1,3 +1,14 @@
+// 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
+// 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 flowgraph
 
 import (
diff --git a/internal/util/flowgraph/node.go b/internal/util/flowgraph/node.go
index c58497faf5..07f18d2cce 100644
--- a/internal/util/flowgraph/node.go
+++ b/internal/util/flowgraph/node.go
@@ -1,3 +1,14 @@
+// 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
+// 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 flowgraph
 
 import (
diff --git a/internal/util/flowgraph/type_def.go b/internal/util/flowgraph/type_def.go
index 1d37cf92f3..724738e220 100644
--- a/internal/util/flowgraph/type_def.go
+++ b/internal/util/flowgraph/type_def.go
@@ -1,3 +1,14 @@
+// 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
+// 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 flowgraph
 
 import (
diff --git a/internal/util/funcutil/func.go b/internal/util/funcutil/func.go
index a7418f11ec..fc336c8065 100644
--- a/internal/util/funcutil/func.go
+++ b/internal/util/funcutil/func.go
@@ -1,3 +1,14 @@
+// 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
+// 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 funcutil
 
 import (
diff --git a/internal/util/funcutil/func_test.go b/internal/util/funcutil/func_test.go
index 978b543843..48cca5d30b 100644
--- a/internal/util/funcutil/func_test.go
+++ b/internal/util/funcutil/func_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 funcutil
 
 import (
diff --git a/internal/util/funcutil/parallel.go b/internal/util/funcutil/parallel.go
index 668a73095c..1fcdc423e0 100644
--- a/internal/util/funcutil/parallel.go
+++ b/internal/util/funcutil/parallel.go
@@ -1,3 +1,14 @@
+// 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
+// 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 funcutil
 
 import (
diff --git a/internal/util/funcutil/parallel_test.go b/internal/util/funcutil/parallel_test.go
index 2e54167cb4..d31c389a0e 100644
--- a/internal/util/funcutil/parallel_test.go
+++ b/internal/util/funcutil/parallel_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 funcutil
 
 import (
diff --git a/internal/util/funcutil/random.go b/internal/util/funcutil/random.go
index 36d7cc6979..ad3f5f8682 100644
--- a/internal/util/funcutil/random.go
+++ b/internal/util/funcutil/random.go
@@ -1,3 +1,14 @@
+// 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
+// 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 funcutil
 
 import (
diff --git a/internal/util/funcutil/slice.go b/internal/util/funcutil/slice.go
index ce80573486..c9288f0a43 100644
--- a/internal/util/funcutil/slice.go
+++ b/internal/util/funcutil/slice.go
@@ -1,3 +1,14 @@
+// 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
+// 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 funcutil
 
 import "reflect"
diff --git a/internal/util/funcutil/slice_test.go b/internal/util/funcutil/slice_test.go
index e86b4600d0..58c0c006ce 100644
--- a/internal/util/funcutil/slice_test.go
+++ b/internal/util/funcutil/slice_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 funcutil
 
 import (
diff --git a/internal/util/mqclient/client.go b/internal/util/mqclient/client.go
index 652df573bc..6fea0f72fc 100644
--- a/internal/util/mqclient/client.go
+++ b/internal/util/mqclient/client.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 type Client interface {
diff --git a/internal/util/mqclient/consumer.go b/internal/util/mqclient/consumer.go
index 0c4bdb0432..f74a457147 100644
--- a/internal/util/mqclient/consumer.go
+++ b/internal/util/mqclient/consumer.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 type SubscriptionInitialPosition int
diff --git a/internal/util/mqclient/id.go b/internal/util/mqclient/id.go
index c5d0dc296a..ed4d10345d 100644
--- a/internal/util/mqclient/id.go
+++ b/internal/util/mqclient/id.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 type MessageID interface {
diff --git a/internal/util/mqclient/message.go b/internal/util/mqclient/message.go
index 2d3d050b72..a49bc025c5 100644
--- a/internal/util/mqclient/message.go
+++ b/internal/util/mqclient/message.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 type ConsumerMessage interface {
diff --git a/internal/util/mqclient/producer.go b/internal/util/mqclient/producer.go
index c7cf3eee61..87dae05474 100644
--- a/internal/util/mqclient/producer.go
+++ b/internal/util/mqclient/producer.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import "context"
diff --git a/internal/util/mqclient/pulsar_client.go b/internal/util/mqclient/pulsar_client.go
index 53fb2cdf65..5ed2fe9b9e 100644
--- a/internal/util/mqclient/pulsar_client.go
+++ b/internal/util/mqclient/pulsar_client.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/pulsar_client_test.go b/internal/util/mqclient/pulsar_client_test.go
index f456a473f0..d26bc71204 100644
--- a/internal/util/mqclient/pulsar_client_test.go
+++ b/internal/util/mqclient/pulsar_client_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/pulsar_consumer.go b/internal/util/mqclient/pulsar_consumer.go
index dd5612c7f7..aa42609305 100644
--- a/internal/util/mqclient/pulsar_consumer.go
+++ b/internal/util/mqclient/pulsar_consumer.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/pulsar_id.go b/internal/util/mqclient/pulsar_id.go
index ae2167b4f1..8edd54aac3 100644
--- a/internal/util/mqclient/pulsar_id.go
+++ b/internal/util/mqclient/pulsar_id.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/pulsar_message.go b/internal/util/mqclient/pulsar_message.go
index 7885c0a747..fcfb32f890 100644
--- a/internal/util/mqclient/pulsar_message.go
+++ b/internal/util/mqclient/pulsar_message.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/pulsar_producer.go b/internal/util/mqclient/pulsar_producer.go
index f86e71cfd5..29b7065cd5 100644
--- a/internal/util/mqclient/pulsar_producer.go
+++ b/internal/util/mqclient/pulsar_producer.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/rmq_client.go b/internal/util/mqclient/rmq_client.go
index 73830df5fb..be01901edc 100644
--- a/internal/util/mqclient/rmq_client.go
+++ b/internal/util/mqclient/rmq_client.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/rmq_client_test.go b/internal/util/mqclient/rmq_client_test.go
index 499cb6f8ec..eb9b841da9 100644
--- a/internal/util/mqclient/rmq_client_test.go
+++ b/internal/util/mqclient/rmq_client_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/rmq_consumer.go b/internal/util/mqclient/rmq_consumer.go
index c219ce3d5c..c7c75b17a1 100644
--- a/internal/util/mqclient/rmq_consumer.go
+++ b/internal/util/mqclient/rmq_consumer.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/rmq_id.go b/internal/util/mqclient/rmq_id.go
index 93af49b443..56ceb3578e 100644
--- a/internal/util/mqclient/rmq_id.go
+++ b/internal/util/mqclient/rmq_id.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/rmq_message.go b/internal/util/mqclient/rmq_message.go
index 8725239d8d..0e3a5ccbe1 100644
--- a/internal/util/mqclient/rmq_message.go
+++ b/internal/util/mqclient/rmq_message.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/mqclient/rmq_producer.go b/internal/util/mqclient/rmq_producer.go
index 43fe30baf6..1875b29dbc 100644
--- a/internal/util/mqclient/rmq_producer.go
+++ b/internal/util/mqclient/rmq_producer.go
@@ -1,3 +1,14 @@
+// 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
+// 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 mqclient
 
 import (
diff --git a/internal/util/performance/performace.go b/internal/util/performance/performace.go
index 73c8d67c02..4b8318f3b5 100644
--- a/internal/util/performance/performace.go
+++ b/internal/util/performance/performace.go
@@ -1,3 +1,14 @@
+// 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
+// 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 performance
 
 import (
diff --git a/internal/util/retry/retry.go b/internal/util/retry/retry.go
index d8f3565e7e..80ba94c65d 100644
--- a/internal/util/retry/retry.go
+++ b/internal/util/retry/retry.go
@@ -1,3 +1,14 @@
+// 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
+// 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 retry
 
 import (
diff --git a/internal/util/retry/retry_test.go b/internal/util/retry/retry_test.go
index 5572e2dac7..96262f34db 100644
--- a/internal/util/retry/retry_test.go
+++ b/internal/util/retry/retry_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 retry
 
 import (
diff --git a/internal/util/rocksmq/client/rocksmq/client.go b/internal/util/rocksmq/client/rocksmq/client.go
index 4afb68dec5..cfa30d369b 100644
--- a/internal/util/rocksmq/client/rocksmq/client.go
+++ b/internal/util/rocksmq/client/rocksmq/client.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/client/rocksmq/client_impl.go b/internal/util/rocksmq/client/rocksmq/client_impl.go
index d2358ecfe0..34c4e364a5 100644
--- a/internal/util/rocksmq/client/rocksmq/client_impl.go
+++ b/internal/util/rocksmq/client/rocksmq/client_impl.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/client/rocksmq/client_impl_test.go b/internal/util/rocksmq/client/rocksmq/client_impl_test.go
index e9644c11eb..074d00ef89 100644
--- a/internal/util/rocksmq/client/rocksmq/client_impl_test.go
+++ b/internal/util/rocksmq/client/rocksmq/client_impl_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/client/rocksmq/consumer.go b/internal/util/rocksmq/client/rocksmq/consumer.go
index 349fb461c7..a6087d07b9 100644
--- a/internal/util/rocksmq/client/rocksmq/consumer.go
+++ b/internal/util/rocksmq/client/rocksmq/consumer.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import server "github.com/zilliztech/milvus-distributed/internal/util/rocksmq/server/rocksmq"
diff --git a/internal/util/rocksmq/client/rocksmq/consumer_impl.go b/internal/util/rocksmq/client/rocksmq/consumer_impl.go
index 9314f16855..7bf201e315 100644
--- a/internal/util/rocksmq/client/rocksmq/consumer_impl.go
+++ b/internal/util/rocksmq/client/rocksmq/consumer_impl.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 type consumer struct {
diff --git a/internal/util/rocksmq/client/rocksmq/consumer_impl_test.go b/internal/util/rocksmq/client/rocksmq/consumer_impl_test.go
index d3d9d82591..94d4741a5f 100644
--- a/internal/util/rocksmq/client/rocksmq/consumer_impl_test.go
+++ b/internal/util/rocksmq/client/rocksmq/consumer_impl_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/client/rocksmq/error.go b/internal/util/rocksmq/client/rocksmq/error.go
index a3801d1511..832a7cfcd2 100644
--- a/internal/util/rocksmq/client/rocksmq/error.go
+++ b/internal/util/rocksmq/client/rocksmq/error.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import "fmt"
diff --git a/internal/util/rocksmq/client/rocksmq/producer.go b/internal/util/rocksmq/client/rocksmq/producer.go
index a927b9dafb..35be82defa 100644
--- a/internal/util/rocksmq/client/rocksmq/producer.go
+++ b/internal/util/rocksmq/client/rocksmq/producer.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 type ProducerOptions struct {
diff --git a/internal/util/rocksmq/client/rocksmq/producer_impl.go b/internal/util/rocksmq/client/rocksmq/producer_impl.go
index 072c2d4cf9..cd45f18b49 100644
--- a/internal/util/rocksmq/client/rocksmq/producer_impl.go
+++ b/internal/util/rocksmq/client/rocksmq/producer_impl.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/client/rocksmq/producer_impl_test.go b/internal/util/rocksmq/client/rocksmq/producer_impl_test.go
index ef09bc4c61..f53af07062 100644
--- a/internal/util/rocksmq/client/rocksmq/producer_impl_test.go
+++ b/internal/util/rocksmq/client/rocksmq/producer_impl_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/client/rocksmq/test_helper.go b/internal/util/rocksmq/client/rocksmq/test_helper.go
index dae23f7a26..723ce96d29 100644
--- a/internal/util/rocksmq/client/rocksmq/test_helper.go
+++ b/internal/util/rocksmq/client/rocksmq/test_helper.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/server/rocksmq/global_rmq.go b/internal/util/rocksmq/server/rocksmq/global_rmq.go
index 536c0db029..d7ed2c9739 100644
--- a/internal/util/rocksmq/server/rocksmq/global_rmq.go
+++ b/internal/util/rocksmq/server/rocksmq/global_rmq.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/server/rocksmq/rocksmq.go b/internal/util/rocksmq/server/rocksmq/rocksmq.go
index 8f5edb4a04..8d264516b3 100644
--- a/internal/util/rocksmq/server/rocksmq/rocksmq.go
+++ b/internal/util/rocksmq/server/rocksmq/rocksmq.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 type ProducerMessage struct {
diff --git a/internal/util/rocksmq/server/rocksmq/rocksmq_impl.go b/internal/util/rocksmq/server/rocksmq/rocksmq_impl.go
index 6c84f6bef2..f1cbcbafc4 100644
--- a/internal/util/rocksmq/server/rocksmq/rocksmq_impl.go
+++ b/internal/util/rocksmq/server/rocksmq/rocksmq_impl.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/rocksmq/server/rocksmq/rocksmq_impl_test.go b/internal/util/rocksmq/server/rocksmq/rocksmq_impl_test.go
index a1ee6b3417..81104fcba9 100644
--- a/internal/util/rocksmq/server/rocksmq/rocksmq_impl_test.go
+++ b/internal/util/rocksmq/server/rocksmq/rocksmq_impl_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 rocksmq
 
 import (
diff --git a/internal/util/trace/util.go b/internal/util/trace/util.go
index ab6e5d796c..fbb62da018 100644
--- a/internal/util/trace/util.go
+++ b/internal/util/trace/util.go
@@ -1,3 +1,14 @@
+// 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
+// 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 trace
 
 import (
diff --git a/internal/util/trace/util_test.go b/internal/util/trace/util_test.go
index 1ff692a899..eeda6b862a 100644
--- a/internal/util/trace/util_test.go
+++ b/internal/util/trace/util_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 trace
 
 import (
diff --git a/internal/util/tsoutil/tso.go b/internal/util/tsoutil/tso.go
index ae115a379f..3d8389a62a 100644
--- a/internal/util/tsoutil/tso.go
+++ b/internal/util/tsoutil/tso.go
@@ -1,3 +1,14 @@
+// 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
+// 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 tsoutil
 
 import (
diff --git a/internal/util/typeutil/convension.go b/internal/util/typeutil/convension.go
index b9c7124b25..55d3af8b5f 100644
--- a/internal/util/typeutil/convension.go
+++ b/internal/util/typeutil/convension.go
@@ -1,3 +1,14 @@
+// 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
+// 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 typeutil
 
 import (
diff --git a/internal/util/typeutil/hash.go b/internal/util/typeutil/hash.go
index 4014d3803b..f2a3cc8fb4 100644
--- a/internal/util/typeutil/hash.go
+++ b/internal/util/typeutil/hash.go
@@ -1,3 +1,14 @@
+// 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
+// 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 typeutil
 
 import (
diff --git a/internal/util/typeutil/hash_test.go b/internal/util/typeutil/hash_test.go
index ef177b10ae..814df082a7 100644
--- a/internal/util/typeutil/hash_test.go
+++ b/internal/util/typeutil/hash_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 typeutil
 
 import (
diff --git a/internal/util/typeutil/index.go b/internal/util/typeutil/index.go
index cbbf258ea7..914f2524be 100644
--- a/internal/util/typeutil/index.go
+++ b/internal/util/typeutil/index.go
@@ -1,3 +1,14 @@
+// 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
+// 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 typeutil
 
 import "github.com/zilliztech/milvus-distributed/internal/proto/commonpb"
diff --git a/internal/util/typeutil/index_test.go b/internal/util/typeutil/index_test.go
index c151a4d186..7036eebac1 100644
--- a/internal/util/typeutil/index_test.go
+++ b/internal/util/typeutil/index_test.go
@@ -1,3 +1,14 @@
+// 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
+// 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 typeutil
 
 import (
diff --git a/internal/util/typeutil/schema.go b/internal/util/typeutil/schema.go
index 5056a4867e..497fabeb4f 100644
--- a/internal/util/typeutil/schema.go
+++ b/internal/util/typeutil/schema.go
@@ -1,3 +1,14 @@
+// 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
+// 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 typeutil
 
 import (
diff --git a/internal/util/typeutil/time.go b/internal/util/typeutil/time.go
index f81d3d66da..9c030a8ea8 100644
--- a/internal/util/typeutil/time.go
+++ b/internal/util/typeutil/time.go
@@ -1,3 +1,14 @@
+// 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
+// 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 typeutil
 
 import "time"
diff --git a/internal/util/typeutil/type.go b/internal/util/typeutil/type.go
index 35cc61ec23..dee1dc584c 100644
--- a/internal/util/typeutil/type.go
+++ b/internal/util/typeutil/type.go
@@ -1,3 +1,14 @@
+// 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
+// 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 typeutil
 
 type Timestamp = uint64