diff --git a/dolphinscheduler-alert/src/main/java/org/apache/dolphinscheduler/alert/AlertServer.java b/dolphinscheduler-alert/src/main/java/org/apache/dolphinscheduler/alert/AlertServer.java
index 0d77951633..9ac76d2838 100644
--- a/dolphinscheduler-alert/src/main/java/org/apache/dolphinscheduler/alert/AlertServer.java
+++ b/dolphinscheduler-alert/src/main/java/org/apache/dolphinscheduler/alert/AlertServer.java
@@ -20,27 +20,22 @@ import org.apache.dolphinscheduler.alert.runner.AlertSender;
 import org.apache.dolphinscheduler.alert.utils.Constants;
 import org.apache.dolphinscheduler.common.thread.Stopper;
 import org.apache.dolphinscheduler.dao.AlertDao;
+import org.apache.dolphinscheduler.dao.DaoFactory;
 import org.apache.dolphinscheduler.dao.entity.Alert;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.context.annotation.ComponentScan;
 
 import java.util.List;
 
 /**
  * alert of start
  */
-@ComponentScan("org.apache.dolphinscheduler")
-public class AlertServer implements CommandLineRunner {
+public class AlertServer {
     private static final Logger logger = LoggerFactory.getLogger(AlertServer.class);
     /**
      * Alert Dao
      */
-    @Autowired
-    private AlertDao alertDao;
+    private AlertDao alertDao = DaoFactory.getDaoInstance(AlertDao.class);
 
     private AlertSender alertSender;
 
@@ -61,7 +56,7 @@ public class AlertServer implements CommandLineRunner {
         return instance;
     }
 
-    public void start(AlertDao alertDao){
+    public void start(){
         logger.info("Alert Server ready start!");
         while (Stopper.isRunning()){
             try {
@@ -77,13 +72,8 @@ public class AlertServer implements CommandLineRunner {
 
 
     public static void main(String[] args){
-        SpringApplication app = new SpringApplication(AlertServer.class);
-        app.run(args);
-    }
-
-    @Override
-    public void run(String... strings) throws Exception {
         AlertServer alertServer = AlertServer.getInstance();
-        alertServer.start(alertDao);
+        alertServer.start();
     }
+
 }
diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/CombinedApplicationServer.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/CombinedApplicationServer.java
index 4a9f681ab9..3bb1a46724 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/CombinedApplicationServer.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/CombinedApplicationServer.java
@@ -42,16 +42,16 @@ public class CombinedApplicationServer extends SpringBootServletInitializer {
         ProcessDao processDao = context.getBean(ProcessDao.class);
         AlertDao alertDao = context.getBean(AlertDao.class);
 
-        MasterServer master = new MasterServer(processDao,alertDao);
+        MasterServer master = new MasterServer(processDao);
         master.run(processDao);
 
-        WorkerServer workerServer = new WorkerServer(processDao, alertDao);
-        workerServer.run(processDao, alertDao);
+        WorkerServer workerServer = new WorkerServer(processDao);
+        workerServer.run(processDao);
 
         LoggerServer server = new LoggerServer();
         server.start();
 
         AlertServer alertServer = AlertServer.getInstance();
-        alertServer.start(alertDao);
+        alertServer.start();
     }
 }
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/MasterServer.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/MasterServer.java
index c1d1a62674..9ab9977ce9 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/MasterServer.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/MasterServer.java
@@ -16,20 +16,19 @@
  */
 package org.apache.dolphinscheduler.server.master;
 
+import org.apache.commons.configuration.ConfigurationException;
+import org.apache.commons.configuration.PropertiesConfiguration;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.dolphinscheduler.common.Constants;
 import org.apache.dolphinscheduler.common.thread.Stopper;
 import org.apache.dolphinscheduler.common.thread.ThreadPoolExecutors;
 import org.apache.dolphinscheduler.common.thread.ThreadUtils;
 import org.apache.dolphinscheduler.common.utils.OSUtils;
-import org.apache.dolphinscheduler.dao.AlertDao;
 import org.apache.dolphinscheduler.dao.ProcessDao;
 import org.apache.dolphinscheduler.server.master.runner.MasterSchedulerThread;
 import org.apache.dolphinscheduler.server.quartz.ProcessScheduleJob;
 import org.apache.dolphinscheduler.server.quartz.QuartzExecutors;
 import org.apache.dolphinscheduler.server.zk.ZKMasterClient;
-import org.apache.commons.configuration.ConfigurationException;
-import org.apache.commons.configuration.PropertiesConfiguration;
-import org.apache.commons.lang3.StringUtils;
 import org.quartz.SchedulerException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -65,9 +64,6 @@ public class MasterServer extends AbstractServer {
     @Autowired
     protected ProcessDao processDao;
 
-    @Autowired
-    protected AlertDao alertDao;
-
     /**
      *  master exec thread pool
      */
@@ -75,14 +71,14 @@ public class MasterServer extends AbstractServer {
 
     public MasterServer(){}
 
-    public MasterServer(ProcessDao processDao,AlertDao alertDao){
+    public MasterServer(ProcessDao processDao){
         try {
             conf = new PropertiesConfiguration(Constants.MASTER_PROPERTIES_PATH);
         }catch (ConfigurationException e){
             logger.error("load configuration failed : " + e.getMessage(),e);
             System.exit(1);
         }
-        zkMasterClient = ZKMasterClient.getZKMasterClient(processDao,alertDao);
+        zkMasterClient = ZKMasterClient.getZKMasterClient(processDao);
         this.masterSchedulerService = ThreadUtils.newDaemonSingleThreadExecutor("Master-Scheduler-Thread");
     }
 
@@ -102,7 +98,7 @@ public class MasterServer extends AbstractServer {
     @Override
     public void run(String... strings) throws Exception {
 
-        MasterServer masterServer = new MasterServer(processDao,alertDao);
+        MasterServer masterServer = new MasterServer(processDao);
 
         masterServer.run(processDao);
 
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/WorkerServer.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/WorkerServer.java
index b36af51846..a2acf9bb29 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/WorkerServer.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/WorkerServer.java
@@ -16,6 +16,9 @@
  */
 package org.apache.dolphinscheduler.server.worker;
 
+import org.apache.commons.configuration.ConfigurationException;
+import org.apache.commons.configuration.PropertiesConfiguration;
+import org.apache.commons.lang.StringUtils;
 import org.apache.dolphinscheduler.common.Constants;
 import org.apache.dolphinscheduler.common.enums.ExecutionStatus;
 import org.apache.dolphinscheduler.common.enums.TaskType;
@@ -27,15 +30,13 @@ import org.apache.dolphinscheduler.common.thread.ThreadUtils;
 import org.apache.dolphinscheduler.common.utils.CollectionUtils;
 import org.apache.dolphinscheduler.common.utils.OSUtils;
 import org.apache.dolphinscheduler.dao.AlertDao;
+import org.apache.dolphinscheduler.dao.DaoFactory;
 import org.apache.dolphinscheduler.dao.ProcessDao;
 import org.apache.dolphinscheduler.dao.entity.TaskInstance;
 import org.apache.dolphinscheduler.server.master.AbstractServer;
 import org.apache.dolphinscheduler.server.utils.ProcessUtils;
 import org.apache.dolphinscheduler.server.worker.runner.FetchTaskThread;
 import org.apache.dolphinscheduler.server.zk.ZKWorkerClient;
-import org.apache.commons.configuration.ConfigurationException;
-import org.apache.commons.configuration.PropertiesConfiguration;
-import org.apache.commons.lang.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -70,8 +71,7 @@ public class WorkerServer extends AbstractServer {
     /**
      *  alert database access
      */
-    @Autowired
-    private AlertDao alertDao;
+    private final AlertDao alertDao = DaoFactory.getDaoInstance(AlertDao.class);;
 
     /**
      * heartbeat thread pool
@@ -93,9 +93,10 @@ public class WorkerServer extends AbstractServer {
      */
     private ExecutorService fetchTaskExecutorService;
 
-    public WorkerServer(){}
+    public WorkerServer(){
+    }
 
-    public WorkerServer(ProcessDao processDao, AlertDao alertDao){
+    public WorkerServer(ProcessDao processDao){
         try {
             conf = new PropertiesConfiguration(Constants.WORKER_PROPERTIES_PATH);
         }catch (ConfigurationException e){
@@ -131,9 +132,9 @@ public class WorkerServer extends AbstractServer {
         // set the name of the current thread
         Thread.currentThread().setName("Worker-Main-Thread");
 
-        WorkerServer workerServer = new WorkerServer(processDao,alertDao);
+        WorkerServer workerServer = new WorkerServer(processDao);
 
-        workerServer.run(processDao,alertDao);
+        workerServer.run(processDao);
 
         logger.info("worker server started");
 
@@ -142,7 +143,7 @@ public class WorkerServer extends AbstractServer {
     }
 
 
-    public void run(ProcessDao processDao, AlertDao alertDao){
+    public void run(ProcessDao processDao){
 
         //  heartbeat interval
         heartBeatInterval = conf.getInt(Constants.WORKER_HEARTBEAT_INTERVAL,
diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/zk/ZKMasterClient.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/zk/ZKMasterClient.java
index 409d39a804..90a2679f5b 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/zk/ZKMasterClient.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/zk/ZKMasterClient.java
@@ -85,12 +85,11 @@ public class ZKMasterClient extends AbstractZKClient {
 	 * @param processDao
 	 * @return
 	 */
-	public static synchronized ZKMasterClient getZKMasterClient(ProcessDao processDao,AlertDao alertDao){
+	public static synchronized ZKMasterClient getZKMasterClient(ProcessDao processDao){
 		if(zkMasterClient == null){
 			zkMasterClient = new ZKMasterClient(processDao);
 		}
 		zkMasterClient.processDao = processDao;
-		zkMasterClient.alertDao = alertDao;
 
 		return zkMasterClient;
 	}
@@ -99,6 +98,8 @@ public class ZKMasterClient extends AbstractZKClient {
 	 *  init
 	 */
 	public void init(){
+		// init dao
+		this.initDao();
 
 		InterProcessMutex mutex = null;
 		try {
@@ -134,6 +135,14 @@ public class ZKMasterClient extends AbstractZKClient {
 
 
 
+
+	/**
+	 *  init dao
+	 */
+	public void initDao(){
+		this.alertDao = DaoFactory.getDaoInstance(AlertDao.class);
+//		this.processDao = DaoFactory.getDaoInstance(ProcessDao.class);
+	}
 	/**
 	 * get alert dao
 	 * @return