diff --git a/dolphinscheduler-dao/src/main/resources/application.properties b/dolphinscheduler-dao/src/main/resources/application.properties
index e482e33bd7..10a92ebe07 100644
--- a/dolphinscheduler-dao/src/main/resources/application.properties
+++ b/dolphinscheduler-dao/src/main/resources/application.properties
@@ -58,25 +58,20 @@ mybatis-plus.mapper-locations=classpath*:/org.apache.dolphinscheduler.dao.mapper
 
 mybatis-plus.typeEnumsPackage=org.apache.dolphinscheduler.*.enums
 
-#实体扫描，多个package用逗号或者分号分隔
 #Entity scan, where multiple packages are separated by a comma or semicolon
 mybatis-plus.typeAliasesPackage=org.apache.dolphinscheduler.dao.entity
 
-#主键类型  AUTO:"数据库ID自增", INPUT:"用户输入ID", ID_WORKER:"全局唯一ID (数字类型唯一ID)", UUID:"全局唯一ID UUID";
 #Primary key type AUTO:" database ID AUTO ", INPUT:" user INPUT ID", ID_WORKER:" global unique ID (numeric type unique ID)", UUID:" global unique ID UUID";
 mybatis-plus.global-config.db-config.id-type=AUTO
 
-#字段策略 IGNORED:"忽略判断",NOT_NULL:"非 NULL 判断"),NOT_EMPTY:"非空判断"
 #Field policy IGNORED:" ignore judgment ",NOT_NULL:" not NULL judgment "),NOT_EMPTY:" not NULL judgment"
 mybatis-plus.global-config.db-config.field-strategy=NOT_NULL
 
-#驼峰下划线转换
 #The hump underline is converted
 mybatis-plus.global-config.db-config.column-underline=true
 mybatis-plus.global-config.db-config.logic-delete-value=-1
 mybatis-plus.global-config.db-config.logic-not-delete-value=0
 mybatis-plus.global-config.db-config.banner=false
-#原生配置
 #The original configuration
 mybatis-plus.configuration.map-underscore-to-camel-case=true
 mybatis-plus.configuration.cache-enabled=false
diff --git a/dolphinscheduler-dao/src/main/resources/dao/data_source.properties__ b/dolphinscheduler-dao/src/main/resources/dao/data_source.properties__
deleted file mode 100644
index 44a10ba335..0000000000
--- a/dolphinscheduler-dao/src/main/resources/dao/data_source.properties__
+++ /dev/null
@@ -1,53 +0,0 @@
-# base spring data source configuration
-spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
-spring.datasource.driver-class-name=com.mysql.jdbc.Driver
-spring.datasource.url=jdbc:mysql://192.168.220.188:3306/dolphinscheduler?characterEncoding=UTF-8
-spring.datasource.username=root
-spring.datasource.password=root@123
-
-# connection configuration
-spring.datasource.initialSize=5
-# min connection number
-spring.datasource.minIdle=5
-# max connection number
-spring.datasource.maxActive=50
-
-# max wait time for get a connection in milliseconds. if configuring maxWait, fair locks are enabled by default and concurrency efficiency decreases.
-# If necessary, unfair locks can be used by configuring the useUnfairLock attribute to true.
-spring.datasource.maxWait=60000
-
-# milliseconds for check to close free connections
-spring.datasource.timeBetweenEvictionRunsMillis=60000
-
-# the Destroy thread detects the connection interval and closes the physical connection in milliseconds if the connection idle time is greater than or equal to minEvictableIdleTimeMillis.
-spring.datasource.timeBetweenConnectErrorMillis=60000
-
-# the longest time a connection remains idle without being evicted, in milliseconds
-spring.datasource.minEvictableIdleTimeMillis=300000
-
-#the SQL used to check whether the connection is valid requires a query statement. If validation Query is null, testOnBorrow, testOnReturn, and testWhileIdle will not work.
-spring.datasource.validationQuery=SELECT 1
-#check whether the connection is valid for timeout, in seconds
-spring.datasource.validationQueryTimeout=3
-
-# when applying for a connection, if it is detected that the connection is idle longer than time Between Eviction Runs Millis,
-# validation Query is performed to check whether the connection is valid
-spring.datasource.testWhileIdle=true
-
-#execute validation to check if the connection is valid when applying for a connection
-spring.datasource.testOnBorrow=true
-#execute validation to check if the connection is valid when the connection is returned
-spring.datasource.testOnReturn=false
-spring.datasource.defaultAutoCommit=true
-spring.datasource.keepAlive=true
-
-# open PSCache, specify count PSCache for every connection
-spring.datasource.poolPreparedStatements=true
-spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
-
-# data quality analysis is not currently in use. please ignore the following configuration
-# task record flag
-task.record.flag=false
-task.record.datasource.url=jdbc:mysql://192.168.xx.xx:3306/etl?characterEncoding=UTF-8
-task.record.datasource.username=xx
-task.record.datasource.password=xx
\ No newline at end of file