diff --git a/hugegraph-pd/.gitignore b/hugegraph-pd/.gitignore
new file mode 100644
index 0000000000..08bc7dd8af
--- /dev/null
+++ b/hugegraph-pd/.gitignore
@@ -0,0 +1 @@
+hg-pd-grpc/src/main/java/
diff --git a/hugegraph-pd/pom.xml b/hugegraph-pd/pom.xml
index e7ccdce9b0..72939bbce5 100644
--- a/hugegraph-pd/pom.xml
+++ b/hugegraph-pd/pom.xml
@@ -33,14 +33,14 @@
 
     <modules>
         <module>hg-pd-grpc</module>
-        <module>hg-pd-client</module>
-        <module>hg-pd-core</module>
-        <module>hg-pd-service</module>
         <module>hg-pd-common</module>
-        <module>hg-pd-dist</module>
-        <module>hg-pd-clitools</module>
-        <module>hg-pd-test</module>
-
+        <module>hg-pd-client</module>
+        <!-- TODO: uncomment later -->
+        <!-- <module>hg-pd-core</module> -->
+        <!-- <module>hg-pd-service</module> -->
+        <!-- <module>hg-pd-dist</module> -->
+        <!-- <module>hg-pd-clitools</module> -->
+        <!-- <module>hg-pd-test</module> -->
     </modules>
 
     <properties>
diff --git a/pom.xml b/pom.xml
index 7442ff1960..452659e517 100644
--- a/pom.xml
+++ b/pom.xml
@@ -97,7 +97,8 @@
     <modules>
         <module>hugegraph-server</module>
         <module>hugegraph-pd</module>
-        <module>hugegraph-store</module>
+        <!-- TODO: uncomment when merge into store -->
+        <!-- <module>hugegraph-store</module> -->
     </modules>
 
     <build>
@@ -181,6 +182,8 @@
                             <exclude>**/hbase-*/**</exclude>
                             <exclude>**/apache-cassandra-*/**</exclude>
                             <exclude>**/pid</exclude>
+                            <!-- sources generated by gRPC -->
+                            <exclude>**/src/main/java/org/apache/hugegraph/pd/grpc/**</exclude>
                         </excludes>
                         <consoleOutput>true</consoleOutput>
                     </configuration>