kettle4.1调度服务连接 mysql8 数据库异常 Unknown initial character set index '255' received from server

问题：kettle4.1调度服务连接 mysql8 数据库异常

Caused by: org.pentaho.di.core.exception.KettleDatabaseException:
Error occured while trying to connect to the database

Error connecting to database: (using class org.gjt.mm.mysql.Driver)
Unknown initial character set index '255' received from server. Initial client c
haracter set can be forced via the 'characterEncoding' property.

问题分析：

默认kettle的mysql驱动为：mysql-connector-java-3.1.14-bin.jar
需要将该驱动删除，并替换为：mysql-connector-java-5.1.47.jar

解决办法：

删除低版本驱动文件。