From 1f022e171291d7467a455fc5a764878264772bfa Mon Sep 17 00:00:00 2001
From: Yuyuan Kang <kangyuyuan_nb@163.com>
Date: Tue, 26 Feb 2019 10:30:51 +0800
Subject: [PATCH] add apache license

---
 docs/Community-History&Vision.md              | 21 +++++++++++++++++++
 docs/Community-Powered By.md                  | 21 +++++++++++++++++++
 docs/Community-Project Committers.md          | 21 +++++++++++++++++++
 docs/Development.md                           | 21 +++++++++++++++++++
 .../Frequently asked questions.md             | 21 +++++++++++++++++++
 docs/Documentation/OtherMaterial-Examples.md  | 21 +++++++++++++++++++
 docs/Documentation/OtherMaterial-Reference.md | 21 +++++++++++++++++++
 .../OtherMaterial-ReleaseNotesV0.7.0.md       | 21 +++++++++++++++++++
 .../OtherMaterial-Sample Data.md              | 21 +++++++++++++++++++
 .../OtherMaterial-Sample Data.txt             | 21 +++++++++++++++++++
 docs/Documentation/QuickStart.md              | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/1-Overview.md             | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/2-Concept.md              | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/3-Operation Manual.md     | 21 +++++++++++++++++++
 .../4-Deployment and Management.md            | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/5-SQL Documentation.md    | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/6-JDBC Documentation.md   | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/7-Tools-Cli.md            | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/7-Tools-Grafana.md        | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/7-Tools-Hadoop.md         | 21 +++++++++++++++++++
 .../UserGuideV0.7.0/7-Tools-spark.md          | 21 +++++++++++++++++++
 21 files changed, 441 insertions(+)

diff --git a/docs/Community-History&Vision.md b/docs/Community-History&Vision.md
index 46c3cc907d..64fcf07f6d 100644
--- a/docs/Community-History&Vision.md
+++ b/docs/Community-History&Vision.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # History&Vision
 
 Comming Soon.
diff --git a/docs/Community-Powered By.md b/docs/Community-Powered By.md
index f29d0c70e7..56ec0389f3 100644
--- a/docs/Community-Powered By.md	
+++ b/docs/Community-Powered By.md	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Powered By](#powered-by)
diff --git a/docs/Community-Project Committers.md b/docs/Community-Project Committers.md
index 70b40ef46f..6ef3397662 100644
--- a/docs/Community-Project Committers.md	
+++ b/docs/Community-Project Committers.md	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # Project Committers
 
 |  Name	       |     Organization     |
diff --git a/docs/Development.md b/docs/Development.md
index cd6fec33fe..2768489304 100644
--- a/docs/Development.md
+++ b/docs/Development.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Have Questions](#have-questions)
diff --git a/docs/Documentation/Frequently asked questions.md b/docs/Documentation/Frequently asked questions.md
index dc9a4bed73..5f53563517 100644
--- a/docs/Documentation/Frequently asked questions.md	
+++ b/docs/Documentation/Frequently asked questions.md	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Frequently Asked Questions](#frequently-asked-questions)
diff --git a/docs/Documentation/OtherMaterial-Examples.md b/docs/Documentation/OtherMaterial-Examples.md
index a1563278d4..c56b650f65 100644
--- a/docs/Documentation/OtherMaterial-Examples.md
+++ b/docs/Documentation/OtherMaterial-Examples.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # IoTDB Examples
 
 These examples give a quick overview of the IoTDB JDBC. IoTDB offers standard JDBC for users to interact with IoTDB, other language versions are comming soon.
diff --git a/docs/Documentation/OtherMaterial-Reference.md b/docs/Documentation/OtherMaterial-Reference.md
index 86ae366c21..ed2d3f6602 100644
--- a/docs/Documentation/OtherMaterial-Reference.md
+++ b/docs/Documentation/OtherMaterial-Reference.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 # Research Papers
 
 Apache IoTDB started at Tsinghua University, School of Software. IoTDB is a database for managing large amount of time series data with columnar storage, data encoding, pre-computation, and index techniques. It has SQL-like interface to write millions of data points per second per node and is optimized to get query results in few seconds over trillions of data points. It can also be easily integrated with Apache Hadoop MapReduce and Apache Spark for analytics.
diff --git a/docs/Documentation/OtherMaterial-ReleaseNotesV0.7.0.md b/docs/Documentation/OtherMaterial-ReleaseNotesV0.7.0.md
index 03b55ba2a6..949e8cde0d 100644
--- a/docs/Documentation/OtherMaterial-ReleaseNotesV0.7.0.md
+++ b/docs/Documentation/OtherMaterial-ReleaseNotesV0.7.0.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [v0.7.0 Release Notes](#v070-release-notes)
diff --git a/docs/Documentation/OtherMaterial-Sample Data.md b/docs/Documentation/OtherMaterial-Sample Data.md
index 2040fab478..b66a159140 100644
--- a/docs/Documentation/OtherMaterial-Sample Data.md	
+++ b/docs/Documentation/OtherMaterial-Sample Data.md	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Material: Sample Data](#material-sample-data)
diff --git a/docs/Documentation/OtherMaterial-Sample Data.txt b/docs/Documentation/OtherMaterial-Sample Data.txt
index 3ac8b0c8b8..f364a26934 100644
--- a/docs/Documentation/OtherMaterial-Sample Data.txt	
+++ b/docs/Documentation/OtherMaterial-Sample Data.txt	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 set storage group to root.ln
 create timeseries root.ln.wf01.wt01.status with datatype=BOOLEAN,encoding=PLAIN
 insert into root.ln.wf01.wt01(timestamp,status) values(1509465600000,true)
diff --git a/docs/Documentation/QuickStart.md b/docs/Documentation/QuickStart.md
index e2556f1ad1..d1a3fd86ed 100755
--- a/docs/Documentation/QuickStart.md
+++ b/docs/Documentation/QuickStart.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Quick Start](#quick-start)
diff --git a/docs/Documentation/UserGuideV0.7.0/1-Overview.md b/docs/Documentation/UserGuideV0.7.0/1-Overview.md
index 1c203c559b..e4d0358653 100644
--- a/docs/Documentation/UserGuideV0.7.0/1-Overview.md
+++ b/docs/Documentation/UserGuideV0.7.0/1-Overview.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Chapter 1: Overview](#chapter-1-overview)
diff --git a/docs/Documentation/UserGuideV0.7.0/2-Concept.md b/docs/Documentation/UserGuideV0.7.0/2-Concept.md
index bc2f0a6877..d560b7d846 100644
--- a/docs/Documentation/UserGuideV0.7.0/2-Concept.md
+++ b/docs/Documentation/UserGuideV0.7.0/2-Concept.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Chapter 2: Concept](#chapter-2-concept)
diff --git a/docs/Documentation/UserGuideV0.7.0/3-Operation Manual.md b/docs/Documentation/UserGuideV0.7.0/3-Operation Manual.md
index 03a38714d8..aafdd88af6 100644
--- a/docs/Documentation/UserGuideV0.7.0/3-Operation Manual.md	
+++ b/docs/Documentation/UserGuideV0.7.0/3-Operation Manual.md	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Chapter 3: Operation Manual](#chapter-3-operation-manual)
diff --git a/docs/Documentation/UserGuideV0.7.0/4-Deployment and Management.md b/docs/Documentation/UserGuideV0.7.0/4-Deployment and Management.md
index 4a0be1e368..0117cc0f5d 100644
--- a/docs/Documentation/UserGuideV0.7.0/4-Deployment and Management.md	
+++ b/docs/Documentation/UserGuideV0.7.0/4-Deployment and Management.md	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Chapter4: Deployment and Management](#chapter4-deployment-and-management)
diff --git a/docs/Documentation/UserGuideV0.7.0/5-SQL Documentation.md b/docs/Documentation/UserGuideV0.7.0/5-SQL Documentation.md
index b9fa617788..b02f7941b9 100644
--- a/docs/Documentation/UserGuideV0.7.0/5-SQL Documentation.md	
+++ b/docs/Documentation/UserGuideV0.7.0/5-SQL Documentation.md	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Chapter 5: IoTDB SQL Documentation](#chapter-5-iotdb-sql-documentation)
diff --git a/docs/Documentation/UserGuideV0.7.0/6-JDBC Documentation.md b/docs/Documentation/UserGuideV0.7.0/6-JDBC Documentation.md
index b003ba4512..6c4b5df16c 100644
--- a/docs/Documentation/UserGuideV0.7.0/6-JDBC Documentation.md	
+++ b/docs/Documentation/UserGuideV0.7.0/6-JDBC Documentation.md	
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Chaper6: JDBC API](#chaper6-jdbc-api)
diff --git a/docs/Documentation/UserGuideV0.7.0/7-Tools-Cli.md b/docs/Documentation/UserGuideV0.7.0/7-Tools-Cli.md
index 5faec15a0c..0fff23f4ab 100644
--- a/docs/Documentation/UserGuideV0.7.0/7-Tools-Cli.md
+++ b/docs/Documentation/UserGuideV0.7.0/7-Tools-Cli.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [Cli/shell tool](#clishell-tool)
diff --git a/docs/Documentation/UserGuideV0.7.0/7-Tools-Grafana.md b/docs/Documentation/UserGuideV0.7.0/7-Tools-Grafana.md
index 26d20fb9a8..42c1faf1de 100644
--- a/docs/Documentation/UserGuideV0.7.0/7-Tools-Grafana.md
+++ b/docs/Documentation/UserGuideV0.7.0/7-Tools-Grafana.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [IoTDB-Grafana](#iotdb-grafana)
diff --git a/docs/Documentation/UserGuideV0.7.0/7-Tools-Hadoop.md b/docs/Documentation/UserGuideV0.7.0/7-Tools-Hadoop.md
index 88eb12459f..51dc4a1411 100644
--- a/docs/Documentation/UserGuideV0.7.0/7-Tools-Hadoop.md
+++ b/docs/Documentation/UserGuideV0.7.0/7-Tools-Hadoop.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [TsFile-Hadoop-Connector User Guide](#tsfile-hadoop-connector-user-guide)
diff --git a/docs/Documentation/UserGuideV0.7.0/7-Tools-spark.md b/docs/Documentation/UserGuideV0.7.0/7-Tools-spark.md
index afdfb6540b..adf28c61c5 100644
--- a/docs/Documentation/UserGuideV0.7.0/7-Tools-spark.md
+++ b/docs/Documentation/UserGuideV0.7.0/7-Tools-spark.md
@@ -1,3 +1,24 @@
+<!--
+
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
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+
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+
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+    under the License.
+
+-->
+
 <!-- TOC -->
 
 - [TsFile-Spark-Connector User Guide](#tsfile-spark-connector-user-guide)
-- 
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