diff --git a/escheduler-api/src/main/java/cn/escheduler/api/enums/Status.java b/escheduler-api/src/main/java/cn/escheduler/api/enums/Status.java
index 265dac3d227ae94ba16299f83bcd2db133c2d959..1704aa238744360f620d91be2bbb79c56169efff 100644
--- a/escheduler-api/src/main/java/cn/escheduler/api/enums/Status.java
+++ b/escheduler-api/src/main/java/cn/escheduler/api/enums/Status.java
@@ -190,8 +190,14 @@ public enum Status {
     PROCESS_NODE_HAS_CYCLE(50019,"process node has cycle"),
     PROCESS_NODE_S_PARAMETER_INVALID(50020,"process node %s parameter invalid"),
 
-
     HDFS_NOT_STARTUP(60001,"hdfs not startup"),
+
+    /**
+     * for monitor
+     */
+    QUERY_DATABASE_STATE_ERROR(70001,"query database state error"),
+    QUERY_ZOOKEEPER_STATE_ERROR(70002,"query zookeeper state error"),
+
     ;
 
     private int code;
diff --git a/escheduler-common/src/main/java/cn/escheduler/common/Constants.java b/escheduler-common/src/main/java/cn/escheduler/common/Constants.java
index e0e0c399e9ea32524a5bbb3f87e16c4ba6783c7e..6b6df52eca196f1cfb965729ed7af3c432ec8053 100644
--- a/escheduler-common/src/main/java/cn/escheduler/common/Constants.java
+++ b/escheduler-common/src/main/java/cn/escheduler/common/Constants.java
@@ -453,7 +453,7 @@ public final class Constants {
     /**
      * task record configuration path
      */
-    public static final String TASK_RECORD_PROPERTIES_PATH = "dao/data_source.properties";
+    public static final String DATA_SOURCE_PROPERTIES = "dao/data_source.properties";
 
     public static final String TASK_RECORD_URL = "task.record.datasource.url";
 
diff --git a/escheduler-common/src/main/java/cn/escheduler/common/zk/AbstractZKClient.java b/escheduler-common/src/main/java/cn/escheduler/common/zk/AbstractZKClient.java
index 730b2f1eb8bbc5072ae08390faa7c773d0f62137..177669b43c3326d36a485bdf1faca905cbaa8962 100644
--- a/escheduler-common/src/main/java/cn/escheduler/common/zk/AbstractZKClient.java
+++ b/escheduler-common/src/main/java/cn/escheduler/common/zk/AbstractZKClient.java
@@ -87,15 +87,6 @@ public abstract class AbstractZKClient {
 
 
 	public AbstractZKClient() {
-		StringBuilder sb = new StringBuilder();
-		String[] zookeeperParamslist = conf.getStringArray(Constants.ZOOKEEPER_QUORUM);
-		for (String param : zookeeperParamslist) {
-			sb.append(param).append(Constants.COMMA);
-		}
-
-		if(sb.length() > 0){
-			sb.deleteCharAt(sb.length() - 1);
-		}
 
 		// retry strategy
 		RetryPolicy retryPolicy = new ExponentialBackoffRetry(
@@ -105,7 +96,7 @@ public abstract class AbstractZKClient {
 		try{
 			// crate zookeeper client
 			zkClient = CuratorFrameworkFactory.builder()
-						.connectString(sb.toString())
+						.connectString(getZookeeperQuorum())
 						.retryPolicy(retryPolicy)
 						.sessionTimeoutMs(1000 * Integer.parseInt(conf.getString(Constants.ZOOKEEPER_SESSION_TIMEOUT)))
 						.connectionTimeoutMs(1000 * Integer.parseInt(conf.getString(Constants.ZOOKEEPER_CONNECTION_TIMEOUT)))
@@ -327,6 +318,24 @@ public abstract class AbstractZKClient {
 		return childrenList.size();
 	}
 
+	/**
+	 *
+	 * @return zookeeper quorum
+	 */
+	public static String getZookeeperQuorum(){
+		StringBuilder sb = new StringBuilder();
+		String[] zookeeperParamslist = conf.getStringArray(Constants.ZOOKEEPER_QUORUM);
+		for (String param : zookeeperParamslist) {
+			sb.append(param).append(Constants.COMMA);
+		}
+
+		if(sb.length() > 0){
+			sb.deleteCharAt(sb.length() - 1);
+		}
+
+		return sb.toString();
+	}
+
 	@Override
 	public String toString() {
 		return "AbstractZKClient{" +
diff --git a/escheduler-dao/src/main/java/cn/escheduler/dao/MonitorDBDao.java b/escheduler-dao/src/main/java/cn/escheduler/dao/MonitorDBDao.java
index 54c55699b396cd48b518194efaf1a5e279a7cc5b..ef93a072962c44131904988366b7bd232360e82d 100644
--- a/escheduler-dao/src/main/java/cn/escheduler/dao/MonitorDBDao.java
+++ b/escheduler-dao/src/main/java/cn/escheduler/dao/MonitorDBDao.java
@@ -45,7 +45,7 @@ public class MonitorDBDao {
 
     static {
         try {
-            conf = new PropertiesConfiguration(Constants.DataSource_PROPERTIES_PATH);
+            conf = new PropertiesConfiguration(Constants.DATA_SOURCE_PROPERTIES);
         }catch (ConfigurationException e){
             logger.error("load configuration excetpion",e);
             System.exit(1);
diff --git a/escheduler-dao/src/main/java/cn/escheduler/dao/TaskRecordDao.java b/escheduler-dao/src/main/java/cn/escheduler/dao/TaskRecordDao.java
index ebc206f9ac6205a6764538ddac64834c7aaf8322..e74ea8c483f3dd5176faf508b82c6129dc4f1a70 100644
--- a/escheduler-dao/src/main/java/cn/escheduler/dao/TaskRecordDao.java
+++ b/escheduler-dao/src/main/java/cn/escheduler/dao/TaskRecordDao.java
@@ -46,7 +46,7 @@ public class TaskRecordDao {
 
     static {
         try {
-            conf = new PropertiesConfiguration(Constants.TASK_RECORD_PROPERTIES_PATH);
+            conf = new PropertiesConfiguration(Constants.DATA_SOURCE_PROPERTIES);
         }catch (ConfigurationException e){
             logger.error("load configuration excetpion",e);
             System.exit(1);