reduce the distribution file size

dolphinscheduler-dist/pom.xml

@@ -118,6 +118,26 @@
 
                         </executions>
                     </plugin>
+                    <plugin>
+                        <groupId>org.codehaus.mojo</groupId>
+                        <artifactId>exec-maven-plugin</artifactId>
+                        <version>3.3.0</version>
+                        <executions>
+                            <execution>
+                                <id>create-symlinks</id>
+                                <goals>
+                                    <goal>exec</goal>
+                                </goals>
+                                <phase>package</phase>
+                                <configuration>
+                                    <executable>sh</executable>
+                                    <arguments>
+                                        <argument>${basedir}/../dolphinscheduler-dist/src/main/assembly/create-symlinks.sh</argument>
+                                    </arguments>
+                                </configuration>
+                            </execution>
+                        </executions>
+                    </plugin>
                 </plugins>
             </build>
         </profile>

dolphinscheduler-dist/src/main/assembly/create-symlinks.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+script_dir=`dirname $0`
+cd $script_dir/../../../target
+package_file=`ls apache-dolphinscheduler-*-bin.tar.gz`
+echo $package_file
+decompress_dirname="${package_file%.tar.gz}"
+rm -rf $decompress_dirname
+#Decompress package file
+tar -xf $package_file
+cd $decompress_dirname
+
+SHARED_LIB_DIR="libs"
+# create share lib directory
+mkdir -p $SHARED_LIB_DIR
+
+echo 'iterate through the lib directory for all subprojects'
+for module in api-server master-server worker-server alert-server tools; do
+  MODULE_LIB_DIR="$module/libs"
+  echo "handling $MODULE_LIB_DIR"
+
+  if [ -d "$MODULE_LIB_DIR" ]; then
+    cd $MODULE_LIB_DIR
+
+    for jar in `ls *.jar`; do
+      # Move jar file to share lib directory
+      mv $jar ../../$SHARED_LIB_DIR/
+
+      # Create a symbolic link in the subproject's lib directory
+      ln -s ../../$SHARED_LIB_DIR/$jar .
+    done
+
+    cd - > /dev/null
+  fi
+done
+#Recompress the package
+cd ..
+tar -zcf $package_file $decompress_dirname
+rm -rf $decompress_dirname