diff --git a/cmd/proxy/node/proxy_node.go b/cmd/proxy/node/proxy_node.go
index 575fb3978d..f48d633e86 100644
--- a/cmd/proxy/node/proxy_node.go
+++ b/cmd/proxy/node/proxy_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 main
 
 import (
diff --git a/cmd/proxy/service/proxy_service.go b/cmd/proxy/service/proxy_service.go
index 760a84ee20..b9fd3de50b 100644
--- a/cmd/proxy/service/proxy_service.go
+++ b/cmd/proxy/service/proxy_service.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 main
 
 import (
diff --git a/internal/distributed/proxynode/client/client.go b/internal/distributed/proxynode/client/client.go
index 08dc15045e..5a902501a9 100644
--- a/internal/distributed/proxynode/client/client.go
+++ b/internal/distributed/proxynode/client/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 grpcproxynodeclient
 
 import (
diff --git a/internal/distributed/proxynode/paramtable.go b/internal/distributed/proxynode/paramtable.go
index 593bf9c4c8..c7edf1d925 100644
--- a/internal/distributed/proxynode/paramtable.go
+++ b/internal/distributed/proxynode/paramtable.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 grpcproxynode
 
 import (
diff --git a/internal/distributed/proxynode/service.go b/internal/distributed/proxynode/service.go
index e5f0f1a9d6..dc88b22e5c 100644
--- a/internal/distributed/proxynode/service.go
+++ b/internal/distributed/proxynode/service.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 grpcproxynode
 
 import (
diff --git a/internal/distributed/proxyservice/client/client.go b/internal/distributed/proxyservice/client/client.go
index 27804f4e80..fba4f245ba 100644
--- a/internal/distributed/proxyservice/client/client.go
+++ b/internal/distributed/proxyservice/client/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 grpcproxyserviceclient
 
 import (
diff --git a/internal/distributed/proxyservice/paramtable.go b/internal/distributed/proxyservice/paramtable.go
index 9102b74a46..1f7b37245f 100644
--- a/internal/distributed/proxyservice/paramtable.go
+++ b/internal/distributed/proxyservice/paramtable.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 grpcproxyservice
 
 import (
diff --git a/internal/distributed/proxyservice/service.go b/internal/distributed/proxyservice/service.go
index eda508bc04..1c23cf50b5 100644
--- a/internal/distributed/proxyservice/service.go
+++ b/internal/distributed/proxyservice/service.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 grpcproxyservice
 
 import (
diff --git a/internal/proxynode/condition.go b/internal/proxynode/condition.go
index db596027b4..eff1e9352d 100644
--- a/internal/proxynode/condition.go
+++ b/internal/proxynode/condition.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 proxynode
 
 import (
diff --git a/internal/proxynode/condition_test.go b/internal/proxynode/condition_test.go
index 276be1ad2b..275df7b43e 100644
--- a/internal/proxynode/condition_test.go
+++ b/internal/proxynode/condition_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 proxynode
 
 import (
diff --git a/internal/proxynode/conf_adapter.go b/internal/proxynode/conf_adapter.go
index c40127d253..45fc4db8aa 100644
--- a/internal/proxynode/conf_adapter.go
+++ b/internal/proxynode/conf_adapter.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 proxynode
 
 import (
diff --git a/internal/proxynode/conf_adapter_mgr.go b/internal/proxynode/conf_adapter_mgr.go
index 2247c157b5..9301b3ecf7 100644
--- a/internal/proxynode/conf_adapter_mgr.go
+++ b/internal/proxynode/conf_adapter_mgr.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 proxynode
 
 import (
diff --git a/internal/proxynode/conf_adapter_mgr_test.go b/internal/proxynode/conf_adapter_mgr_test.go
index 56d46b287b..0f69b6d85b 100644
--- a/internal/proxynode/conf_adapter_mgr_test.go
+++ b/internal/proxynode/conf_adapter_mgr_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 proxynode
 
 import (
diff --git a/internal/proxynode/conf_adapter_test.go b/internal/proxynode/conf_adapter_test.go
index 6e1ae418d2..612f5b68bf 100644
--- a/internal/proxynode/conf_adapter_test.go
+++ b/internal/proxynode/conf_adapter_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 proxynode
 
 import (
diff --git a/internal/proxynode/impl.go b/internal/proxynode/impl.go
index 33d50b7050..a7de1dfcab 100644
--- a/internal/proxynode/impl.go
+++ b/internal/proxynode/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 proxynode
 
 import (
diff --git a/internal/proxynode/index_type.go b/internal/proxynode/index_type.go
index 44a46d918b..3975f52107 100644
--- a/internal/proxynode/index_type.go
+++ b/internal/proxynode/index_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 proxynode
 
 type IndexType = string
diff --git a/internal/proxynode/insert_channels.go b/internal/proxynode/insert_channels.go
index 461093573b..182721d72e 100644
--- a/internal/proxynode/insert_channels.go
+++ b/internal/proxynode/insert_channels.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 proxynode
 
 import (
diff --git a/internal/proxynode/insert_channels_test.go b/internal/proxynode/insert_channels_test.go
index 3f38b6c9b9..d04c1fdd63 100644
--- a/internal/proxynode/insert_channels_test.go
+++ b/internal/proxynode/insert_channels_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 proxynode
 
 import (
diff --git a/internal/proxynode/meta_cache.go b/internal/proxynode/meta_cache.go
index 53c7bca9a3..c31ca89e8c 100644
--- a/internal/proxynode/meta_cache.go
+++ b/internal/proxynode/meta_cache.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 proxynode
 
 import (
diff --git a/internal/proxynode/meta_cache_test.go b/internal/proxynode/meta_cache_test.go
index 1bec22c18f..53be385ff7 100644
--- a/internal/proxynode/meta_cache_test.go
+++ b/internal/proxynode/meta_cache_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 proxynode
 
 import (
diff --git a/internal/proxynode/paramtable.go b/internal/proxynode/paramtable.go
index 7e6ea194c2..f476280a3a 100644
--- a/internal/proxynode/paramtable.go
+++ b/internal/proxynode/paramtable.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 proxynode
 
 import (
diff --git a/internal/proxynode/proxy_node.go b/internal/proxynode/proxy_node.go
index ba6ba3f12d..b7c47fa372 100644
--- a/internal/proxynode/proxy_node.go
+++ b/internal/proxynode/proxy_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 proxynode
 
 import (
diff --git a/internal/proxynode/repack_func.go b/internal/proxynode/repack_func.go
index 5e0ba72d3f..d7c40223bd 100644
--- a/internal/proxynode/repack_func.go
+++ b/internal/proxynode/repack_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 proxynode
 
 import (
diff --git a/internal/proxynode/segment.go b/internal/proxynode/segment.go
index a56077adf3..b79bc8a847 100644
--- a/internal/proxynode/segment.go
+++ b/internal/proxynode/segment.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 proxynode
 
 import (
diff --git a/internal/proxynode/task.go b/internal/proxynode/task.go
index ae038ecd9e..dcc9f7a883 100644
--- a/internal/proxynode/task.go
+++ b/internal/proxynode/task.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 proxynode
 
 import (
diff --git a/internal/proxynode/task_scheduler.go b/internal/proxynode/task_scheduler.go
index 9f2ec6acaf..94c05b0e84 100644
--- a/internal/proxynode/task_scheduler.go
+++ b/internal/proxynode/task_scheduler.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 proxynode
 
 import (
diff --git a/internal/proxynode/timetick.go b/internal/proxynode/timetick.go
index 97ec662de9..9d43478c83 100644
--- a/internal/proxynode/timetick.go
+++ b/internal/proxynode/timetick.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 proxynode
 
 import (
diff --git a/internal/proxynode/util.go b/internal/proxynode/util.go
index c91dbdb8de..d62b71a784 100644
--- a/internal/proxynode/util.go
+++ b/internal/proxynode/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 proxynode
 
 import (
diff --git a/internal/proxynode/util_test.go b/internal/proxynode/util_test.go
index e89ffc13b9..2601c6225d 100644
--- a/internal/proxynode/util_test.go
+++ b/internal/proxynode/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 proxynode
 
 import (
diff --git a/internal/proxynode/validate_util.go b/internal/proxynode/validate_util.go
index 0993527a04..cdb812696c 100644
--- a/internal/proxynode/validate_util.go
+++ b/internal/proxynode/validate_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 proxynode
 
 import (
diff --git a/internal/proxynode/validate_util_test.go b/internal/proxynode/validate_util_test.go
index 2ccc0aa6e6..383aa8c6dd 100644
--- a/internal/proxynode/validate_util_test.go
+++ b/internal/proxynode/validate_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 proxynode
 
 import (
diff --git a/internal/proxyservice/impl.go b/internal/proxyservice/impl.go
index 579596309a..dd2700ff2f 100644
--- a/internal/proxyservice/impl.go
+++ b/internal/proxyservice/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 proxyservice
 
 import (
diff --git a/internal/proxyservice/node_info.go b/internal/proxyservice/node_info.go
index 3cd881786f..9a4e2ab9d9 100644
--- a/internal/proxyservice/node_info.go
+++ b/internal/proxyservice/node_info.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/node_info_test.go b/internal/proxyservice/node_info_test.go
index e06c7c6af6..5eb54f22b7 100644
--- a/internal/proxyservice/node_info_test.go
+++ b/internal/proxyservice/node_info_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 proxyservice
 
 import (
diff --git a/internal/proxyservice/nodeid_allocator.go b/internal/proxyservice/nodeid_allocator.go
index b073d2de3a..90c5b1d79c 100644
--- a/internal/proxyservice/nodeid_allocator.go
+++ b/internal/proxyservice/nodeid_allocator.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/nodeid_allocator_test.go b/internal/proxyservice/nodeid_allocator_test.go
index e447174106..22b4a8c8ea 100644
--- a/internal/proxyservice/nodeid_allocator_test.go
+++ b/internal/proxyservice/nodeid_allocator_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 proxyservice
 
 import (
diff --git a/internal/proxyservice/paramtable.go b/internal/proxyservice/paramtable.go
index f47c3d2f6f..df9be86a29 100644
--- a/internal/proxyservice/paramtable.go
+++ b/internal/proxyservice/paramtable.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/paramtable_test.go b/internal/proxyservice/paramtable_test.go
index bfe9e1fd65..339620294b 100644
--- a/internal/proxyservice/paramtable_test.go
+++ b/internal/proxyservice/paramtable_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 proxyservice
 
 import (
diff --git a/internal/proxyservice/proxyservice.go b/internal/proxyservice/proxyservice.go
index 6b8e7d3120..6125add40f 100644
--- a/internal/proxyservice/proxyservice.go
+++ b/internal/proxyservice/proxyservice.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/task.go b/internal/proxyservice/task.go
index cac4dfae61..1bb75f9ef8 100644
--- a/internal/proxyservice/task.go
+++ b/internal/proxyservice/task.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/task_mock.go b/internal/proxyservice/task_mock.go
index 3ad84d5cd7..31f31d496d 100644
--- a/internal/proxyservice/task_mock.go
+++ b/internal/proxyservice/task_mock.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 proxyservice
 
 import "context"
diff --git a/internal/proxyservice/task_queue.go b/internal/proxyservice/task_queue.go
index 9c959e4711..82d62fe091 100644
--- a/internal/proxyservice/task_queue.go
+++ b/internal/proxyservice/task_queue.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/task_queue_test.go b/internal/proxyservice/task_queue_test.go
index a5ebb73ae1..0034d89542 100644
--- a/internal/proxyservice/task_queue_test.go
+++ b/internal/proxyservice/task_queue_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 proxyservice
 
 import (
diff --git a/internal/proxyservice/task_scheduler.go b/internal/proxyservice/task_scheduler.go
index 9304bc918f..0f2d79bca9 100644
--- a/internal/proxyservice/task_scheduler.go
+++ b/internal/proxyservice/task_scheduler.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/task_scheduler_test.go b/internal/proxyservice/task_scheduler_test.go
index 381cfbc2a8..97bcd2b142 100644
--- a/internal/proxyservice/task_scheduler_test.go
+++ b/internal/proxyservice/task_scheduler_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 proxyservice
 
 import (
diff --git a/internal/proxyservice/timesync.go b/internal/proxyservice/timesync.go
index 0820d9a3e5..6bbee04e26 100644
--- a/internal/proxyservice/timesync.go
+++ b/internal/proxyservice/timesync.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/timesync_test.go b/internal/proxyservice/timesync_test.go
index 19a66ce1c3..1ae035dd51 100644
--- a/internal/proxyservice/timesync_test.go
+++ b/internal/proxyservice/timesync_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 proxyservice
 
 import (
diff --git a/internal/proxyservice/timetick.go b/internal/proxyservice/timetick.go
index 74e2b2ed09..ed5800c7f7 100644
--- a/internal/proxyservice/timetick.go
+++ b/internal/proxyservice/timetick.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 proxyservice
 
 import (
diff --git a/internal/proxyservice/timetick_test.go b/internal/proxyservice/timetick_test.go
index 9f0c2b6cc6..29abc1d7a5 100644
--- a/internal/proxyservice/timetick_test.go
+++ b/internal/proxyservice/timetick_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 proxyservice
 
 import (