diff --git a/src/main/java/com/actiontech/dble/backend/delyDetection/DelayDetection.java b/src/main/java/com/actiontech/dble/backend/delyDetection/DelayDetection.java
index a3bb992bc..ee4283584 100644
--- a/src/main/java/com/actiontech/dble/backend/delyDetection/DelayDetection.java
+++ b/src/main/java/com/actiontech/dble/backend/delyDetection/DelayDetection.java
@@ -68,7 +68,7 @@ public class DelayDetection {
     }
 
     private void synSql() {
-        String[] str = {"dble", SystemConfig.getInstance().getInstanceName(), dbGroupConfig.getName()};
+        String[] str = {"dble", dbGroupConfig.getName(), SystemConfig.getInstance().getInstanceName()};
         sourceName = Joiner.on("_").join(str);
         String schema = dbGroupConfig.getDelayDatabase();
         String tableName = ".u_delay ";
diff --git a/src/main/java/com/actiontech/dble/services/manager/information/tables/DbleDbGroup.java b/src/main/java/com/actiontech/dble/services/manager/information/tables/DbleDbGroup.java
index bac1b960c..b3cbb6140 100644
--- a/src/main/java/com/actiontech/dble/services/manager/information/tables/DbleDbGroup.java
+++ b/src/main/java/com/actiontech/dble/services/manager/information/tables/DbleDbGroup.java
@@ -105,10 +105,16 @@ public class DbleDbGroup extends ManagerWritableTable {
             map.put(COLUMN_ACTIVE, Boolean.TRUE.toString());
             return map;
         }).collect(Collectors.toList());
+        tempRowList.forEach(this::defaultVal);
         rowList.addAll(tempRowList);
         return rowList;
     }
 
+    private void defaultVal(LinkedHashMap<String, String> rows) {
+        String delayDatabase = rows.get(DELAY_DATABASE);
+        rows.put(DELAY_DATABASE, String.valueOf(delayDatabase));
+    }
+
     @Override
     public int insertRows(List<LinkedHashMap<String, String>> rows) {
         //check rule