dataworks调度的时候老是失败，但是重跑就会成功？

dataworks调度的时候老是失败，但是重跑就会成功？说什么datax连接不到数据库 2023-05-03 00:00:11.241 [main] INFO PerfTrace - PerfTrace traceId=job_2723885, isEnable=true, priority=1 2023-05-03 00:00:11.242 [main] INFO JobContainer - DataX jobContainer starts job. 2023-05-03 00:00:11.244 [main] INFO JobContainer - jobContainer starts to do preHandle ... 2023-05-03 00:00:11.244 [main] INFO JobContainer - jobContainer starts to do init ... 2023-05-03 00:00:26.561 [job-2723885] WARN DBUtil - test connection of [jdbc:mysql://11.254.31.1:5265/ioc_management?allowLoadLocalInfile=false] failed, for Code:[MYSQLErrCode-02], Description:[数据库服务的IP地址或者Port错误，请检查填写的IP地址和Port或者联系DBA确认IP地址和Port是否正确。如果是同步中心用户请联系DBA确认idb上录入的IP和PORT信息和数据库的当前实际信息是一致的]. - 具体错误信息为：Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. - com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)可以联通，就是晚上调度老是失败，但是白天重跑就可以成功