diff --git a/deployer/src/main/resources/spring/default-instance.xml b/deployer/src/main/resources/spring/default-instance.xml
index 019c3031..164546d9 100644
--- a/deployer/src/main/resources/spring/default-instance.xml
+++ b/deployer/src/main/resources/spring/default-instance.xml
@@ -136,7 +136,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -146,7 +146,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 
diff --git a/deployer/src/main/resources/spring/file-instance.xml b/deployer/src/main/resources/spring/file-instance.xml
index 636dc4e5..87fdc49f 100644
--- a/deployer/src/main/resources/spring/file-instance.xml
+++ b/deployer/src/main/resources/spring/file-instance.xml
@@ -121,7 +121,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -131,7 +131,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 
diff --git a/deployer/src/main/resources/spring/group-instance.xml b/deployer/src/main/resources/spring/group-instance.xml
index d0c94057..9f96801e 100644
--- a/deployer/src/main/resources/spring/group-instance.xml
+++ b/deployer/src/main/resources/spring/group-instance.xml
@@ -118,7 +118,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -128,7 +128,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 
@@ -220,7 +220,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -230,7 +230,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 
diff --git a/deployer/src/main/resources/spring/memory-instance.xml b/deployer/src/main/resources/spring/memory-instance.xml
index 68f90f0c..d7289aa4 100644
--- a/deployer/src/main/resources/spring/memory-instance.xml
+++ b/deployer/src/main/resources/spring/memory-instance.xml
@@ -109,7 +109,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -119,7 +119,7 @@
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
 				<property name="pwdPublicKey" value="${canal.instance.pwdPublicKey:retl}" />
 				<property name="enableDruid" value="${canal.instance.enableDruid:false}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:test}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 
diff --git a/instance/spring/src/test/resources/spring/default-instance.xml b/instance/spring/src/test/resources/spring/default-instance.xml
index 417934da..84a50e3d 100644
--- a/instance/spring/src/test/resources/spring/default-instance.xml
+++ b/instance/spring/src/test/resources/spring/default-instance.xml
@@ -140,7 +140,7 @@
 				<property name="address" value="${canal.instance.master.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -148,7 +148,7 @@
 				<property name="address" value="${canal.instance.standby.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		
diff --git a/instance/spring/src/test/resources/spring/file-instance.xml b/instance/spring/src/test/resources/spring/file-instance.xml
index fcd0a78f..aa717ca3 100644
--- a/instance/spring/src/test/resources/spring/file-instance.xml
+++ b/instance/spring/src/test/resources/spring/file-instance.xml
@@ -128,7 +128,7 @@
 				<property name="address" value="${canal.instance.master.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -136,7 +136,7 @@
 				<property name="address" value="${canal.instance.standby.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		
diff --git a/instance/spring/src/test/resources/spring/group-instance.xml b/instance/spring/src/test/resources/spring/group-instance.xml
index 763ec12f..4dea968a 100644
--- a/instance/spring/src/test/resources/spring/group-instance.xml
+++ b/instance/spring/src/test/resources/spring/group-instance.xml
@@ -123,7 +123,7 @@
 				<property name="address" value="${canal.instance.master1.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -131,7 +131,7 @@
 				<property name="address" value="${canal.instance.standby1.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		
@@ -203,7 +203,7 @@
 				<property name="address" value="${canal.instance.master2.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -211,7 +211,7 @@
 				<property name="address" value="${canal.instance.standby2.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		
diff --git a/instance/spring/src/test/resources/spring/memory-instance.xml b/instance/spring/src/test/resources/spring/memory-instance.xml
index 0f58e964..f9e98475 100644
--- a/instance/spring/src/test/resources/spring/memory-instance.xml
+++ b/instance/spring/src/test/resources/spring/memory-instance.xml
@@ -114,7 +114,7 @@
 				<property name="address" value="${canal.instance.master.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>
 		<property name="standbyInfo">
@@ -122,7 +122,7 @@
 				<property name="address" value="${canal.instance.standby.address}" />
 				<property name="username" value="${canal.instance.dbUsername:retl}" />
 				<property name="password" value="${canal.instance.dbPassword:retl}" />
-				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:retl}" />
+				<property name="defaultDatabaseName" value="${canal.instance.defaultDatabaseName:}" />
 			</bean>
 		</property>