diff --git a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/CollectionUtils.java b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/CollectionUtils.java
index e69f9a9f76..9c02111c36 100644
--- a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/CollectionUtils.java
+++ b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/CollectionUtils.java
@@ -86,21 +86,20 @@ public class CollectionUtils {
      * @return string to map
      */
     public static Map<String, String> stringToMap(String str, String separator, String keyPrefix) {
-        if (null == str || "".equals(str)) {
-            return null;
+        Map<String, String> emptyMap = new HashMap<>(0);
+        if (StringUtils.isEmpty(str)) {
+            return emptyMap;
         }
-        if (null == separator || "".equals(separator)) {
-            return null;
+        if (StringUtils.isEmpty(separator)) {
+            return emptyMap;
         }
         String[] strings = str.split(separator);
-        int mapLength = strings.length;
-        if ((strings.length % 2) != 0) {
-            mapLength = mapLength + 1;
-        }
-
-        Map<String, String> map = new HashMap<>(mapLength);
+        Map<String, String> map = new HashMap<>(strings.length);
         for (int i = 0; i < strings.length; i++) {
             String[] strArray = strings[i].split("=");
+            if (strArray.length != 2) {
+                return emptyMap;
+            }
             //strArray[0] KEY  strArray[1] VALUE
             if (StringUtils.isEmpty(keyPrefix)) {
                 map.put(strArray[0], strArray[1]);
@@ -146,7 +145,7 @@ public class CollectionUtils {
          * @param obj the object
          * @return the maximum frequency of the object
          */
-        public final int max(final Object obj) {
+        private int max(final Object obj) {
             return Math.max(freqA(obj), freqB(obj));
         }
 
@@ -156,7 +155,7 @@ public class CollectionUtils {
          * @param obj the object
          * @return the minimum frequency of the object
          */
-        public final int min(final Object obj) {
+        private int min(final Object obj) {
             return Math.min(freqA(obj), freqB(obj));
         }
 
@@ -180,10 +179,10 @@ public class CollectionUtils {
             return getFreq(obj, cardinalityB);
         }
 
-        private final int getFreq(final Object obj, final Map<?, Integer> freqMap) {
+        private int getFreq(final Object obj, final Map<?, Integer> freqMap) {
             final Integer count = freqMap.get(obj);
             if (count != null) {
-                return count.intValue();
+                return count;
             }
             return 0;
         }
@@ -203,7 +202,7 @@ public class CollectionUtils {
             return true;
         }
 
-        if ((a == null && b != null) || a != null && b == null) {
+        if (a == null || b == null) {
             return false;
         }
 
@@ -253,12 +252,7 @@ public class CollectionUtils {
     public static <O> Map<O, Integer> getCardinalityMap(final Iterable<? extends O> coll) {
         final Map<O, Integer> count = new HashMap<O, Integer>();
         for (final O obj : coll) {
-            final Integer c = count.get(obj);
-            if (c == null) {
-                count.put(obj, Integer.valueOf(1));
-            } else {
-                count.put(obj, Integer.valueOf(c.intValue() + 1));
-            }
+            count.put(obj, count.getOrDefault(obj, 0) + 1);
         }
         return count;
     }
@@ -273,6 +267,12 @@ public class CollectionUtils {
      */
     public static <T extends Object> List<Map<String, Object>> getListByExclusion(List<T> originList, Set<String> exclusionSet) {
         List<Map<String, Object>> instanceList = new ArrayList<>();
+        if (exclusionSet == null) {
+            exclusionSet = new HashSet<>();
+        }
+        if (originList == null) {
+            return instanceList;
+        }
         Map<String, Object> instanceMap;
         for (T instance : originList) {
             Map<String, Object> dataMap = new BeanMap(instance);
diff --git a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/DateUtils.java b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/DateUtils.java
index 0f30e7fbe0..3455d5344c 100644
--- a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/DateUtils.java
+++ b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/DateUtils.java
@@ -291,14 +291,14 @@ public class DateUtils {
      * get some hour of day
      *
      * @param date date
-     * @param hours hours
+     * @param offsetHour hours
      * @return some hour of day
      * */
-    public static Date getSomeHourOfDay(Date date, int hours) {
+    public static Date getSomeHourOfDay(Date date, int offsetHour) {
         Calendar cal = Calendar.getInstance();
 
         cal.setTime(date);
-        cal.set(Calendar.HOUR_OF_DAY, cal.get(Calendar.HOUR_OF_DAY) - hours);
+        cal.set(Calendar.HOUR_OF_DAY, cal.get(Calendar.HOUR_OF_DAY) + offsetHour);
         cal.set(Calendar.MINUTE, 0);
         cal.set(Calendar.SECOND, 0);
         cal.set(Calendar.MILLISECOND, 0);
diff --git a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/dependent/DependentDateUtils.java b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/dependent/DependentDateUtils.java
index 574343d0cb..103e75fb61 100644
--- a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/dependent/DependentDateUtils.java
+++ b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/utils/dependent/DependentDateUtils.java
@@ -34,7 +34,7 @@ public class DependentDateUtils {
     public static List<DateInterval> getLastHoursInterval(Date businessDate, int hourNumber){
         List<DateInterval> dateIntervals = new ArrayList<>();
         for(int index = hourNumber; index > 0; index--){
-            Date lastHour = DateUtils.getSomeHourOfDay(businessDate, index);
+            Date lastHour = DateUtils.getSomeHourOfDay(businessDate, -index);
             Date beginTime = DateUtils.getStartOfHour(lastHour);
             Date endTime = DateUtils.getEndOfHour(lastHour);
             dateIntervals.add(new DateInterval(beginTime, endTime));
diff --git a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/queue/TaskQueueImplTest.java b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/queue/TaskQueueImplTest.java
index efee627676..14e90ebcdc 100644
--- a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/queue/TaskQueueImplTest.java
+++ b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/queue/TaskQueueImplTest.java
@@ -19,7 +19,7 @@ package org.apache.dolphinscheduler.common.queue;
 import org.apache.dolphinscheduler.common.Constants;
 import org.apache.dolphinscheduler.common.utils.IpUtils;
 import org.apache.dolphinscheduler.common.utils.OSUtils;
-import org.apache.dolphinscheduler.common.zk.StandaloneZKServerForTest;
+import org.apache.dolphinscheduler.common.zk.ZKServer;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Ignore;
@@ -35,7 +35,7 @@ import static org.junit.Assert.assertEquals;
 /**
  * task queue test
  */
-public class TaskQueueImplTest extends StandaloneZKServerForTest {
+public class TaskQueueImplTest {
 
     private static final Logger logger = LoggerFactory.getLogger(TaskQueueImplTest.class);
 
@@ -43,7 +43,7 @@ public class TaskQueueImplTest extends StandaloneZKServerForTest {
 
     @Before
     public void before(){
-        super.before();
+        ZKServer.start();
 
         tasksQueue = TaskQueueFactory.getTaskQueueInstance();
 
@@ -57,6 +57,7 @@ public class TaskQueueImplTest extends StandaloneZKServerForTest {
     public void after(){
         //clear all data
         tasksQueue.delete();
+        ZKServer.stop();
     }
 
 
diff --git a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/CollectionUtilsTest.java b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/CollectionUtilsTest.java
index 30c11522b6..7321879ab8 100644
--- a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/CollectionUtilsTest.java
+++ b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/CollectionUtilsTest.java
@@ -16,6 +16,7 @@
  */
 package org.apache.dolphinscheduler.common.utils;
 
+import org.apache.dolphinscheduler.common.Constants;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -26,19 +27,26 @@ public class CollectionUtilsTest {
 
     @Test
     public void equalLists() {
+        Assert.assertTrue(CollectionUtils.equalLists(null,null));
+        Assert.assertTrue(CollectionUtils.equalLists(new ArrayList<Integer>(),new ArrayList<Integer>()));
         List<Integer> a = new ArrayList<Integer>();
         a.add(1);
         a.add(2);
-        a.add(3);
         List<Integer> b = new ArrayList<Integer>();
-        b.add(3);
+        b.add(1);
+        b.add(2);
+        Assert.assertTrue(CollectionUtils.equalLists(a, b));
+        a.add(1);
+        Assert.assertFalse(CollectionUtils.equalLists(a, b));
         b.add(2);
+        Assert.assertFalse(CollectionUtils.equalLists(a, b));
+        a.add(2);
         b.add(1);
-        Assert.assertTrue(CollectionUtils.equalLists(a,b));
-        Assert.assertTrue(CollectionUtils.equalLists(null,null));
-        List<Integer> c = new ArrayList<Integer>();
-        Assert.assertFalse(CollectionUtils.equalLists(c,null));
-        Assert.assertFalse(CollectionUtils.equalLists(c,a));
+        a.add(4);
+        b.add(2);
+        Assert.assertFalse(CollectionUtils.equalLists(a, b));
+        Assert.assertFalse(CollectionUtils.equalLists(null, new ArrayList<Integer>()));
+        Assert.assertFalse(CollectionUtils.equalLists(new ArrayList<Integer>(), null));
     }
 
     @Test
@@ -56,7 +64,49 @@ public class CollectionUtilsTest {
 
     @Test
     public void stringToMap() {
-        Map<String, String> a = CollectionUtils.stringToMap("a=b;c=d", ";", "");
+        Map<String, String> a = CollectionUtils.stringToMap("a=b;c=d;", ";");
         Assert.assertNotNull(a);
+        Assert.assertTrue(a.size() == 2);
+        a = CollectionUtils.stringToMap(null, ";");
+        Assert.assertTrue(a.isEmpty());
+        a = CollectionUtils.stringToMap("", ";");
+        Assert.assertTrue(a.isEmpty());
+        a = CollectionUtils.stringToMap("a=b;c=d", "");
+        Assert.assertTrue(a.isEmpty());
+        a = CollectionUtils.stringToMap("a=b;c=d", null);
+        Assert.assertTrue(a.isEmpty());
+        a = CollectionUtils.stringToMap("a=b;c=d;e=f", ";");
+        Assert.assertEquals(a.size(), 3);
+        a = CollectionUtils.stringToMap("a;b=f", ";");
+        Assert.assertTrue(a.isEmpty());
+        a = CollectionUtils.stringToMap("a=b;c=d;e=f;", ";", "test");
+        Assert.assertEquals(a.size(), 3);
+        Assert.assertNotNull(a.get("testa"));
     }
+
+    @Test
+    public void getListByExclusion() {
+        Assert.assertNotNull(CollectionUtils.getListByExclusion(null, null));
+        List<Integer> originList = new ArrayList<>();
+        originList.add(1);
+        originList.add(2);
+        List<Map<String, Object>> ret = CollectionUtils.getListByExclusion(originList, null);
+        Assert.assertEquals(ret.size(), 2);
+        ret = CollectionUtils.getListByExclusion(originList, new HashSet<>());
+        Assert.assertEquals(ret.size(), 2);
+        Assert.assertFalse(ret.get(0).isEmpty());
+        Set<String> exclusion = new HashSet<>();
+        exclusion.add(Constants.CLASS);
+        ret = CollectionUtils.getListByExclusion(originList, exclusion);
+        Assert.assertEquals(ret.size(), 2);
+        Assert.assertTrue(ret.get(0).isEmpty());
+    }
+
+    @Test
+    public void isNotEmpty() {
+        List<Integer> list = new ArrayList<>();
+        Assert.assertFalse(CollectionUtils.isNotEmpty(list));
+        Assert.assertFalse(CollectionUtils.isNotEmpty(null));
+    }
+
 }
diff --git a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/DateUtilsTest.java b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/DateUtilsTest.java
index bcaa391042..6800f6b542 100644
--- a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/DateUtilsTest.java
+++ b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/utils/DateUtilsTest.java
@@ -18,13 +18,11 @@ package org.apache.dolphinscheduler.common.utils;
 
 import org.junit.Assert;
 import org.junit.Test;
-
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 
 public class DateUtilsTest {
-
     @Test
     public void format2Readable() throws ParseException {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
@@ -54,4 +52,102 @@ public class DateUtilsTest {
         Assert.assertEquals(sunday, sunday1);
 
     }
-}
\ No newline at end of file
+
+    @Test
+    public void diffHours(){
+        Date d1 = DateUtils.stringToDate("2019-01-28 00:00:00");
+        Date d2 = DateUtils.stringToDate("2019-01-28 20:00:00");
+        Assert.assertEquals(DateUtils.diffHours(d1, d2), 20);
+        Date d3 = DateUtils.stringToDate("2019-01-28 20:00:00");
+        Assert.assertEquals(DateUtils.diffHours(d3, d2), 0);
+        Assert.assertEquals(DateUtils.diffHours(d2, d1), 20);
+        Date d4 = null;
+        Assert.assertEquals(DateUtils.diffHours(d2, d4), 0);
+    }
+
+    @Test
+    public void dateToString() {
+        Date d1 = DateUtils.stringToDate("2019-01-28");
+        Assert.assertNull(d1);
+        d1 = DateUtils.stringToDate("2019-01-28 00:00:00");
+        Assert.assertEquals(DateUtils.dateToString(d1), "2019-01-28 00:00:00");
+    }
+
+    @Test
+    public void getSomeDay() {
+        Date d1 = DateUtils.stringToDate("2019-01-31 00:00:00");
+        Date curr = DateUtils.getSomeDay(d1, 1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-02-01 00:00:00");
+        Assert.assertEquals(DateUtils.dateToString(DateUtils.getSomeDay(d1, -31)), "2018-12-31 00:00:00");
+    }
+
+    @Test
+    public void getFirstDayOfMonth() {
+        Date d1 = DateUtils.stringToDate("2019-01-31 00:00:00");
+        Date curr = DateUtils.getFirstDayOfMonth(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-01 00:00:00");
+
+        d1 = DateUtils.stringToDate("2019-01-31 01:59:00");
+        curr = DateUtils.getFirstDayOfMonth(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-01 01:59:00");
+    }
+
+    @Test
+    public void getSomeHourOfDay() {
+        Date d1 = DateUtils.stringToDate("2019-01-31 11:59:59");
+        Date curr = DateUtils.getSomeHourOfDay(d1, -1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 10:00:00");
+        curr = DateUtils.getSomeHourOfDay(d1, 0);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 11:00:00");
+        curr = DateUtils.getSomeHourOfDay(d1, 2);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 13:00:00");
+        curr = DateUtils.getSomeHourOfDay(d1, 24);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-02-01 11:00:00");
+    }
+
+    @Test
+    public void getLastDayOfMonth() {
+        Date d1 = DateUtils.stringToDate("2019-01-31 11:59:59");
+        Date curr = DateUtils.getLastDayOfMonth(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 11:59:59");
+        d1 = DateUtils.stringToDate("2019-01-02 11:59:59");
+        curr = DateUtils.getLastDayOfMonth(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 11:59:59");
+
+        d1 = DateUtils.stringToDate("2019-02-02 11:59:59");
+        curr = DateUtils.getLastDayOfMonth(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-02-28 11:59:59");
+
+        d1 = DateUtils.stringToDate("2020-02-02 11:59:59");
+        curr = DateUtils.getLastDayOfMonth(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2020-02-29 11:59:59");
+    }
+
+    @Test
+    public void getStartOfDay() {
+        Date d1 = DateUtils.stringToDate("2019-01-31 11:59:59");
+        Date curr = DateUtils.getStartOfDay(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 00:00:00");
+    }
+
+    @Test
+    public void getEndOfDay() {
+        Date d1 = DateUtils.stringToDate("2019-01-31 11:00:59");
+        Date curr = DateUtils.getEndOfDay(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 23:59:59");
+    }
+
+    @Test
+    public void getStartOfHour() {
+        Date d1 = DateUtils.stringToDate("2019-01-31 11:00:59");
+        Date curr = DateUtils.getStartOfHour(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 11:00:00");
+    }
+
+    @Test
+    public void getEndOfHour() {
+        Date d1 = DateUtils.stringToDate("2019-01-31 11:00:59");
+        Date curr = DateUtils.getEndOfHour(d1);
+        Assert.assertEquals(DateUtils.dateToString(curr), "2019-01-31 11:59:59");
+    }
+}
diff --git a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/StandaloneZKServerForTest.java b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/StandaloneZKServerForTest.java
deleted file mode 100644
index fed9ebb18a..0000000000
--- a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/StandaloneZKServerForTest.java
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * 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.
- */
-package org.apache.dolphinscheduler.common.zk;
-
-import java.io.File;
-import java.util.Properties;
-
-import org.apache.dolphinscheduler.common.thread.ThreadPoolExecutors;
-import org.apache.zookeeper.server.ServerConfig;
-import org.apache.zookeeper.server.ZooKeeperServerMain;
-import org.apache.zookeeper.server.quorum.QuorumPeerConfig;
-import org.junit.Before;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-
-/**
- * just for test
- */
-public class StandaloneZKServerForTest {
-
-    private static final Logger logger = LoggerFactory.getLogger(StandaloneZKServerForTest.class);
-
-    private static volatile ZooKeeperServerMain zkServer = null;
-
-
-    @Before
-    public void before() {
-        logger.info("standalone zookeeper server for test service start ");
-
-        ThreadPoolExecutors.getInstance().execute(new Runnable() {
-            @Override
-            public void run() {
-
-                //delete zk data dir ?
-                File zkFile = new File(System.getProperty("java.io.tmpdir"), "zookeeper");
-
-                startStandaloneServer("2000", zkFile.getAbsolutePath(), "2181", "10", "5");
-            }
-        });
-
-    }
-
-
-    /**
-     * start zk server
-     * @param tickTime  zookeeper ticktime
-     * @param dataDir zookeeper data dir
-     * @param clientPort zookeeper client port
-     * @param initLimit zookeeper init limit
-     * @param syncLimit zookeeper sync limit
-     */
-    private void startStandaloneServer(String tickTime, String dataDir, String clientPort, String initLimit, String syncLimit) {
-        Properties props = new Properties();
-        props.setProperty("tickTime", tickTime);
-        props.setProperty("dataDir", dataDir);
-        props.setProperty("clientPort", clientPort);
-        props.setProperty("initLimit", initLimit);
-        props.setProperty("syncLimit", syncLimit);
-
-        QuorumPeerConfig quorumConfig = new QuorumPeerConfig();
-        try {
-            quorumConfig.parseProperties(props);
-
-            if(zkServer == null ){
-
-                synchronized (StandaloneZKServerForTest.class){
-                    if(zkServer == null ){
-                        zkServer = new ZooKeeperServerMain();
-                        final ServerConfig config = new ServerConfig();
-                        config.readFrom(quorumConfig);
-                        zkServer.runFromConfig(config);
-                    }
-                }
-
-            }
-
-        } catch (Exception e) {
-            logger.error("start standalone server fail！", e);
-        }
-    }
-
-
-}
\ No newline at end of file
diff --git a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/TestZk.java b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/TestZk.java
new file mode 100644
index 0000000000..5c3db2d5d1
--- /dev/null
+++ b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/TestZk.java
@@ -0,0 +1,43 @@
+/*
+ * 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.
+ */
+package org.apache.dolphinscheduler.common.zk;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * demo for using zkServer
+ */
+public class TestZk {
+
+    @Before
+    public void before(){
+        ZKServer.start();
+    }
+
+    @Test
+    public void test(){
+        Assert.assertTrue(ZKServer.isStarted());
+    }
+
+    @After
+    public void after(){
+        ZKServer.stop();
+    }
+}
diff --git a/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/ZKServer.java b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/ZKServer.java
new file mode 100644
index 0000000000..5aba9fd8a1
--- /dev/null
+++ b/dolphinscheduler-common/src/test/java/org/apache/dolphinscheduler/common/zk/ZKServer.java
@@ -0,0 +1,165 @@
+/*
+ * 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.
+ */
+package org.apache.dolphinscheduler.common.zk;
+
+import org.apache.curator.framework.CuratorFramework;
+import org.apache.curator.framework.CuratorFrameworkFactory;
+import org.apache.curator.retry.ExponentialBackoffRetry;
+import org.apache.zookeeper.server.ZooKeeperServerMain;
+import org.apache.zookeeper.server.quorum.QuorumPeerConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+
+/**
+ * just for test
+ */
+public class ZKServer {
+
+    private static final Logger logger = LoggerFactory.getLogger(ZKServer.class);
+
+    private static volatile PublicZooKeeperServerMain zkServer = null;
+
+    public static final int DEFAULT_ZK_TEST_PORT = 22181;
+
+    public static final String DEFAULT_ZK_STR = "localhost:" + DEFAULT_ZK_TEST_PORT;
+
+    private static String dataDir = null;
+
+    private static final AtomicBoolean isStarted = new AtomicBoolean(false);
+
+    public static void start() {
+        try {
+            startLocalZkServer(DEFAULT_ZK_TEST_PORT);
+        } catch (Exception e) {
+            logger.error("Failed to start ZK: " + e);
+        }
+    }
+
+    public static boolean isStarted(){
+        return isStarted.get();
+    }
+
+    static class PublicZooKeeperServerMain extends ZooKeeperServerMain {
+
+        @Override
+        public void initializeAndRun(String[] args)
+                throws QuorumPeerConfig.ConfigException, IOException {
+            super.initializeAndRun(args);
+        }
+
+        @Override
+        public void shutdown() {
+            super.shutdown();
+        }
+    }
+
+    /**
+     * Starts a local Zk instance with a generated empty data directory
+     *
+     * @param port The port to listen on
+     */
+    public static void startLocalZkServer(final int port) {
+        startLocalZkServer(port, org.apache.commons.io.FileUtils.getTempDirectoryPath() + File.separator + "test-" + System.currentTimeMillis());
+    }
+
+    /**
+     * Starts a local Zk instance
+     *
+     * @param port        The port to listen on
+     * @param dataDirPath The path for the Zk data directory
+     */
+    private static synchronized void startLocalZkServer(final int port, final String dataDirPath) {
+        if (zkServer != null) {
+            throw new RuntimeException("Zookeeper server is already started!");
+        }
+        try {
+            zkServer = new PublicZooKeeperServerMain();
+            logger.info("Zookeeper data path : {} ", dataDirPath);
+            dataDir = dataDirPath;
+            final String[] args = new String[]{Integer.toString(port), dataDirPath};
+            Thread init = new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        zkServer.initializeAndRun(args);
+                    } catch (QuorumPeerConfig.ConfigException e) {
+                        logger.warn("Caught exception while starting ZK", e);
+                    } catch (IOException e) {
+                        logger.warn("Caught exception while starting ZK", e);
+                    }
+                }
+            }, "init-zk-thread");
+            init.start();
+        } catch (Exception e) {
+            logger.warn("Caught exception while starting ZK", e);
+            throw new RuntimeException(e);
+        }
+
+        CuratorFramework zkClient = CuratorFrameworkFactory.builder()
+                .connectString(DEFAULT_ZK_STR)
+                .retryPolicy(new ExponentialBackoffRetry(10,100))
+                .sessionTimeoutMs(1000 * 30)
+                .connectionTimeoutMs(1000 * 30)
+                .build();
+
+        try {
+            zkClient.blockUntilConnected(10, TimeUnit.SECONDS);
+            zkClient.close();
+        } catch (InterruptedException ignore) {
+        }
+        isStarted.compareAndSet(false, true);
+        logger.info("zk server started");
+    }
+
+    /**
+     * Stops a local Zk instance, deleting its data directory
+     */
+    public static void stop() {
+        try {
+            stopLocalZkServer(true);
+        } catch (Exception e) {
+            logger.error("Failed to stop ZK ",e);
+        }
+    }
+
+    /**
+     * Stops a local Zk instance.
+     *
+     * @param deleteDataDir Whether or not to delete the data directory
+     */
+    private static synchronized void stopLocalZkServer(final boolean deleteDataDir) {
+        if (zkServer != null) {
+            try {
+                zkServer.shutdown();
+                zkServer = null;
+                if (deleteDataDir) {
+                    org.apache.commons.io.FileUtils.deleteDirectory(new File(dataDir));
+                }
+                isStarted.compareAndSet(true, false);
+            } catch (Exception e) {
+                logger.warn("Caught exception while stopping ZK server", e);
+                throw new RuntimeException(e);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/dolphinscheduler-dao/src/test/java/org/apache/dolphinscheduler/dao/mapper/UserMapperTest.java b/dolphinscheduler-dao/src/test/java/org/apache/dolphinscheduler/dao/mapper/UserMapperTest.java
index a4b8618bfd..da17e14044 100644
--- a/dolphinscheduler-dao/src/test/java/org/apache/dolphinscheduler/dao/mapper/UserMapperTest.java
+++ b/dolphinscheduler-dao/src/test/java/org/apache/dolphinscheduler/dao/mapper/UserMapperTest.java
@@ -154,7 +154,7 @@ public class UserMapperTest {
         accessToken.setToken("secrettoken");
         accessToken.setCreateTime(new Date());
         accessToken.setUpdateTime(new Date());
-        accessToken.setExpireTime(DateUtils.getSomeHourOfDay(new Date(),-1));
+        accessToken.setExpireTime(DateUtils.getSomeHourOfDay(new Date(),1));
         accessTokenMapper.insert(accessToken);
         return accessToken;
     }
@@ -356,4 +356,4 @@ public class UserMapperTest {
         accessTokenMapper.deleteById(accessToken.getId());
 
     }
-}
\ No newline at end of file
+}
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/AbstractYarnTask.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/AbstractYarnTask.java
index 776290aafa..b9b3ad6824 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/AbstractYarnTask.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/AbstractYarnTask.java
@@ -68,6 +68,7 @@ public abstract class AbstractYarnTask extends AbstractTask {
     } catch (Exception e) {
       logger.error("yarn process failure", e);
       exitStatusCode = -1;
+      throw e;
     }
   }
 
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/dependent/DependentTask.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/dependent/DependentTask.java
index 30c5a1a5d2..b0bb4c6f4c 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/dependent/DependentTask.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/dependent/DependentTask.java
@@ -99,7 +99,7 @@ public class DependentTask extends AbstractTask {
     }
 
     @Override
-    public void handle(){
+    public void handle() throws Exception {
         // set the name of the current thread
         String threadLoggerInfoName = String.format(Constants.TASK_LOG_INFO_FORMAT, taskProps.getTaskAppId());
         Thread.currentThread().setName(threadLoggerInfoName);
@@ -135,6 +135,7 @@ public class DependentTask extends AbstractTask {
         }catch (Exception e){
             logger.error(e.getMessage(),e);
             exitStatusCode = -1;
+            throw e;
         }
     }
 
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/http/HttpTask.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/http/HttpTask.java
index a5c7390499..44eef65aba 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/http/HttpTask.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/http/HttpTask.java
@@ -113,23 +113,20 @@ public class HttpTask extends AbstractTask {
         long startTime = System.currentTimeMillis();
         String statusCode = null;
         String body = null;
-        try(CloseableHttpClient client = createHttpClient()) {
-            try(CloseableHttpResponse response = sendRequest(client)) {
-                statusCode = String.valueOf(getStatusCode(response));
-                body = getResponseBody(response);
-                exitStatusCode = validResponse(body, statusCode);
-                long costTime = System.currentTimeMillis() - startTime;
-                logger.info("startTime: {}, httpUrl: {}, httpMethod: {}, costTime : {}Millisecond, statusCode : {}, body : {}, log : {}",
-                        DateUtils.format2Readable(startTime), httpParameters.getUrl(),httpParameters.getHttpMethod(), costTime, statusCode, body, output);
-            }catch (Exception e) {
-                appendMessage(e.toString());
-                exitStatusCode = -1;
-                logger.error("httpUrl[" + httpParameters.getUrl() + "] connection failed："+output, e);
-            }
-        } catch (Exception e) {
+
+        try(CloseableHttpClient client = createHttpClient();
+            CloseableHttpResponse response = sendRequest(client)) {
+            statusCode = String.valueOf(getStatusCode(response));
+            body = getResponseBody(response);
+            exitStatusCode = validResponse(body, statusCode);
+            long costTime = System.currentTimeMillis() - startTime;
+            logger.info("startTime: {}, httpUrl: {}, httpMethod: {}, costTime : {}Millisecond, statusCode : {}, body : {}, log : {}",
+                    DateUtils.format2Readable(startTime), httpParameters.getUrl(),httpParameters.getHttpMethod(), costTime, statusCode, body, output);
+        }catch (Exception e){
             appendMessage(e.toString());
             exitStatusCode = -1;
             logger.error("httpUrl[" + httpParameters.getUrl() + "] connection failed："+output, e);
+            throw e;
         }
     }
 
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/processdure/ProcedureTask.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/processdure/ProcedureTask.java
index 3418c741f8..59cf8a6e24 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/processdure/ProcedureTask.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/processdure/ProcedureTask.java
@@ -97,14 +97,13 @@ public class ProcedureTask extends AbstractTask {
                 procedureParameters.getMethod(),
                 procedureParameters.getLocalParams());
 
-        // determine whether there is a data source
-        if (procedureParameters.getDatasource() == 0){
-            logger.error("datasource id not exists");
+        DataSource dataSource = processDao.findDataSourceById(procedureParameters.getDatasource());
+        if (dataSource == null){
+            logger.error("datasource not exists");
             exitStatusCode = -1;
-            return;
+            throw new IllegalArgumentException("datasource not found");
         }
 
-        DataSource dataSource = processDao.findDataSourceById(procedureParameters.getDatasource());
         logger.info("datasource name : {} , type : {} , desc : {} ,  user_id : {} , parameter : {}",
                 dataSource.getName(),
                 dataSource.getType(),
@@ -112,11 +111,6 @@ public class ProcedureTask extends AbstractTask {
                 dataSource.getUserId(),
                 dataSource.getConnectionParams());
 
-        if (dataSource == null){
-            logger.error("datasource not exists");
-            exitStatusCode = -1;
-            return;
-        }
         Connection connection = null;
         CallableStatement stmt = null;
         try {
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/python/PythonTask.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/python/PythonTask.java
index fffd5f080d..f6227b15a4 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/python/PythonTask.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/python/PythonTask.java
@@ -98,6 +98,7 @@ public class PythonTask extends AbstractTask {
     } catch (Exception e) {
       logger.error("python task failure", e);
       exitStatusCode = -1;
+      throw e;
     }
   }
 
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/shell/ShellTask.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/shell/ShellTask.java
index fb7d2268e5..438d373775 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/shell/ShellTask.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/shell/ShellTask.java
@@ -106,6 +106,7 @@ public class ShellTask extends AbstractTask {
     } catch (Exception e) {
       logger.error("shell task failure", e);
       exitStatusCode = -1;
+      throw e;
     }
   }
 
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/sql/SqlTask.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/sql/SqlTask.java
index f0478ac74c..ccfee2efec 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/sql/SqlTask.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/sql/SqlTask.java
@@ -261,9 +261,7 @@ public class SqlTask extends AbstractTask {
                 Map<String, String> connParamMap = CollectionUtils.stringToMap(sqlParameters.getConnParams(),
                         SEMICOLON,
                         HIVE_CONF);
-                if(connParamMap != null){
-                    paramProp.putAll(connParamMap);
-                }
+                paramProp.putAll(connParamMap);
 
                 connection = DriverManager.getConnection(baseDataSource.getJdbcUrl(),
                         paramProp);
diff --git a/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/dependent/DependentTaskTest.java b/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/dependent/DependentTaskTest.java
index 3d428eab89..272fb546da 100644
--- a/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/dependent/DependentTaskTest.java
+++ b/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/dependent/DependentTaskTest.java
@@ -29,7 +29,7 @@ public class DependentTaskTest {
 
 
     @Test
-    public void testDependInit(){
+    public void testDependInit() throws Exception{
 
         TaskProps taskProps = new TaskProps();
 
diff --git a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js
index 0a86186933..11f22132c7 100644
--- a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js
+++ b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js
@@ -91,22 +91,232 @@ Dag.prototype.toolbarEvent = function ({ item, code, is }) {
 /**
  * Echo data display
  */
-Dag.prototype.backfill = function () {
-  jsPlumb.ready(() => {
-    JSP.init({
-      dag: this.dag,
-      instance: this.instance
+Dag.prototype.backfill = function (arg) {
+  if(arg) {
+    let locationsValue = store.state.dag.locations
+    let locationsValue1 = store.state.dag.locations
+    let locationsValue2 = store.state.dag.locations
+    let arr = []
+    for (let i in locationsValue1) {
+      let objs = new Object();
+      objs.id = i
+      arr.push(Object.assign(objs,locationsValue1[i])); //Attributes
+    }
+    let tmp = []
+    for(let i in locationsValue2) {
+      if(locationsValue2[i].targetarr !='' && locationsValue2[i].targetarr.split(',').length>1) {
+        tmp.push(locationsValue2[i])
+      }
+    }
+    
+    function copy (array) {
+      let newArray = []
+      for(let item of array) {
+        newArray.push(item);
+      }
+      return  newArray;
+    }
+
+    
+    let newArr = copy(arr)
+    function getNewArr() {
+      for(let i= 0; i<newArr.length; i++) {
+        if(newArr[i].targetarr !='' && newArr[i].targetarr.split(',').length>1) {
+          newArr[i].targetarr = newArr[i].targetarr.split(',').shift()
+        }
+      }
+      return newArr
+    }
+    getNewArr()
+    /**
+    * @description Transform flat data into a tree structure
+    * @param {Array} arr Flat data
+    * @param {String} pidStr targetarr key name
+    * @param {String} idStr id key name
+    * @param {String} childrenStr children key name
+    */
+    function fommat({arrayList, pidStr = 'targetarr', idStr = 'id', childrenStr = 'children'}) {
+        let listOjb = {}; // Used to store objects of the form {key: obj}
+        let treeList = []; // An array to store the final tree structure data
+        // Transform the data into {key: obj} format, which is convenient for the following data processing
+        for (let i = 0; i < arrayList.length; i++) {
+            listOjb[arrayList[i][idStr]] = arrayList[i]
+        }
+        // Format data based on pid
+        for (let j = 0; j < arrayList.length; j++) {
+            // Determine if the parent exists
+            // let haveParent = arrayList[j].targetarr.split(',').length>1?listOjb[arrayList[j].targetarr.split(',')[0]]:listOjb[arrayList[j][pidStr]]
+            let haveParent = listOjb[arrayList[j][pidStr]]
+            if (haveParent) {
+                // If there is no parent children field, create a children field
+                !haveParent[childrenStr] && (haveParent[childrenStr] = [])
+                // Insert child in parent
+                haveParent[childrenStr].push(arrayList[j])
+            } else {
+                // If there is no parent, insert directly into the outermost layer
+                treeList.push(arrayList[j])
+            }
+        }
+        return treeList
+      }
+      let datas = fommat({arrayList: newArr,pidStr: 'targetarr'})
+    // Count the number of leaf nodes
+      function getLeafCountTree(json) {
+        if(!json.children) {
+          json.colspan = 1;
+          return 1;
+        } else {
+          let leafCount = 0;
+          for(let i = 0 ; i < json.children.length ; i++){
+            leafCount = leafCount + getLeafCountTree(json.children[i]);
+          }
+          json.colspan = leafCount;
+          return leafCount;
+        }
+      }
+      // Number of tree node levels
+      let countTree = getLeafCountTree(datas[0])
+      function getMaxFloor(treeData) {
+        let floor = 0
+        let v = this
+        let max = 0
+        function each (data, floor) {
+          data.forEach(e => {
+            e.floor = floor
+            e.x=floor*170
+            if (floor > max) {
+              max = floor
+            }
+            if (e.children) {
+              each(e.children, floor + 1)
+            }
+          })
+        }
+          each(treeData,1)
+          return max
+        }
+        getMaxFloor(datas)
+        // The last child of each node
+        let lastchildren = [];
+        forxh(datas);
+        function forxh(list) {
+          for (let i = 0; i < list.length; i++) {
+            let chlist = list[i];
+            if (chlist.children) {
+              forxh(chlist.children);
+            } else {
+              lastchildren.push(chlist);
+            }
+          }
+        }
+        // Get all parent nodes above the leaf node
+        function treeFindPath (tree, func, path,n) {
+          if (!tree) return []
+          for (const data of tree) {
+            path.push(data.name)
+            if (func(data)) return path
+            if (data.children) {
+            const findChildren = treeFindPath(data.children, func, path,n)
+            if (findChildren.length) return findChildren
+            }
+            path.pop()
+          }
+          return []
+        }
+        function toLine(data){
+          return data.reduce((arr, {id, name, targetarr, x, y, children = []}) =>
+          arr.concat([{id, name, targetarr, x, y}], toLine(children)), [])
+          return result;
+        }
+        let listarr = toLine(datas);
+        let listarrs = toLine(datas)
+        let dataObject = {}
+        for(let i = 0; i<listarrs.length; i++) {
+          delete(listarrs[i].id)
+        }
+        
+        for(let a = 0; a<listarr.length; a++) {
+          dataObject[listarr[a].id] = listarrs[a]
+        }
+        // Comparison function
+        function createComparisonFunction(propertyName) {
+          return function (object1,object2) {
+            let value1 = object1[propertyName];
+            let value2 = object2[propertyName];
+
+            if (value1 < value2) {
+              return -1;
+            } else if (value1 > value2) {
+              return 1;
+            } else {
+              return 0;
+            }
+          };
+        }
+        
+        lastchildren = lastchildren.sort(createComparisonFunction('x'))
+        
+        // Coordinate value of each leaf node
+        for(let a = 0; a<lastchildren.length; a++) {
+          dataObject[lastchildren[a].id].y = (a+1)*120
+        }
+        for(let i =0 ; i<lastchildren.length; i++) {
+          let node = treeFindPath(datas, data=> data.targetarr===lastchildren[i].targetarr,[],i+1)
+          for(let j = 0; j<node.length; j++) {
+            for(let k= 0; k<listarrs.length; k++) {
+              if(node[j] == listarrs[k].name) {
+                listarrs[k].y = (i+1)*120
+              }
+            }
+          }
+        }
+        for(let i = 0; i<tmp.length; i++) {
+          for(let objs in dataObject) {
+           if(tmp[i].name == dataObject[objs].name) {
+            dataObject[objs].targetarr = tmp[i].targetarr
+           }
+          }
+        }
+        for(let a = 0; a<lastchildren.length; a++) {
+          dataObject[lastchildren[a].id].y = (a+1)*120
+        }
+        if(countTree>1) {
+          dataObject[Object.keys(locationsValue1)[0]].y = (countTree/2)*120+50
+        }
+    
+    locationsValue = dataObject
+    jsPlumb.ready(() => {
+      JSP.init({
+        dag: this.dag,
+        instance: this.instance
+      })
+      // Backfill
+      JSP.jspBackfill({
+        // connects
+        connects: _.cloneDeep(store.state.dag.connects),
+        // Node location information
+        locations: _.cloneDeep(locationsValue),
+        // Node data
+        largeJson: _.cloneDeep(store.state.dag.tasks)
+      })
     })
-    // Backfill
-    JSP.jspBackfill({
-      // connects
-      connects: _.cloneDeep(store.state.dag.connects),
-      // Node location information
-      locations: _.cloneDeep(store.state.dag.locations),
-      // Node data
-      largeJson: _.cloneDeep(store.state.dag.tasks)
+  } else {
+    jsPlumb.ready(() => {
+      JSP.init({
+        dag: this.dag,
+        instance: this.instance
+      })
+      // Backfill
+      JSP.jspBackfill({
+        // connects
+        connects: _.cloneDeep(store.state.dag.connects),
+        // Node location information
+        locations: _.cloneDeep(store.state.dag.locations),
+        // Node data
+        largeJson: _.cloneDeep(store.state.dag.tasks)
+      })
     })
-  })
+  }
 }
 
 /**
diff --git a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.vue b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.vue
index 0c8cd2e861..94dc2651be 100644
--- a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.vue
+++ b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.vue
@@ -22,6 +22,7 @@
         <div class="bar-box roundedRect jtk-draggable jtk-droppable jtk-endpoint-anchor jtk-connected"
              :class="v === dagBarId ? 'active' : ''"
              :id="v"
+             :key="v"
              v-for="(item,v) in tasksTypeList"
              @mousedown="_getDagId(v)">
           <div data-toggle="tooltip" :title="item.description">
@@ -65,10 +66,12 @@
                v-for="(item,$index) in toolOperList"
                :class="_operationClass(item)"
                :id="item.code"
+               :key="$index"
                @click="_ckOperation(item,$event)">
               <i class="iconfont" v-html="item.icon" data-toggle="tooltip" :title="item.description" ></i>
             </a>
           </div>
+          <x-button type="text" icon="fa fa-play" @click="dagAutomaticLayout"></x-button>
           <x-button
                   data-toggle="tooltip"
                   :title="$t('Refresh DAG status')"
@@ -142,7 +145,8 @@
         isRtTasks: false,
         isRefresh: false,
         isLoading: false,
-        taskId: null
+        taskId: null,
+        arg: false,
       }
     },
     mixins: [disabledState],
@@ -153,9 +157,44 @@
     methods: {
       ...mapActions('dag', ['saveDAGchart', 'updateInstance', 'updateDefinition', 'getTaskState']),
       ...mapMutations('dag', ['addTasks', 'resetParams', 'setIsEditDag', 'setName']),
-      init () {
+      
+      // DAG automatic layout
+      dagAutomaticLayout() {
+        $('#canvas').html('')
+
+      // Destroy round robin
+        Dag.init({
+        dag: this,
+        instance: jsPlumb.getInstance({
+          Endpoint: [
+            'Dot', { radius: 1, cssClass: 'dot-style' }
+          ],
+          Connector: 'Straight',
+          PaintStyle: { lineWidth: 2, stroke: '#456' }, // Connection style
+          ConnectionOverlays: [
+            [
+              'Arrow',
+              {
+                location: 1,
+                id: 'arrow',
+                length: 12,
+                foldback: 0.8
+              }
+            ]
+          ],
+          Container: 'canvas'
+        })
+      })
+        if (this.tasks.length) {
+          Dag.backfill(true)
+        } else {
+          Dag.create()
+        }
+      },
+
+      init (args) {
         if (this.tasks.length) {
-          Dag.backfill()
+          Dag.backfill(args)
           // Process instances can view status
           if (this.type === 'instance') {
             this._getTaskState(false).then(res => {})
@@ -513,7 +552,7 @@
       })
     },
     mounted () {
-      this.init()
+      this.init(this.arg)
     },
     beforeDestroy () {
       this.resetParams()
diff --git a/pom.xml b/pom.xml
index 61c2297621..2524461575 100644
--- a/pom.xml
+++ b/pom.xml
@@ -612,10 +612,10 @@
 				<version>${maven-surefire-plugin.version}</version>
 				<configuration>
 					<includes>
+						<include>**/common/utils/*.java</include>
+						<include>**/common/graph/*.java</include>
 						<include>**/api/utils/CheckUtilsTest.java</include>
 						<include>**/api/utils/FileUtilsTest.java</include>
-						<include>**/common/graph/*.java</include>
-						<include>**/*CollectionUtilsTest.java</include><!--run test classes-->
 					</includes>
 					<!-- <skip>true</skip> -->
 				</configuration>