diff --git a/.gitignore b/.gitignore
index 89f2fff..a50fd0b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+### IDE ###
+.idea
+idea/*
+
 ### C++ ###
 # Prerequisites
 *.d
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..309831a
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,5 @@
+Apache RocketMQ
+Copyright 2016-2019 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
\ No newline at end of file