启动Hive时遇到问题

Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

Caused by: com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: Communications link failure
Caused by: org.datanucleus.exceptions.NucleusException: Attempt to invoke the "HikariCP" plugin to create a ConnectionPool gave an error : Failed to initialize pool: Communications link failure
启动HIve时一直重复这三个，网上的也都没有解决问题，求！

• 这篇博客也许可以解决你的问题👉 ：自带连接池异常，HikariPool-1 - Exception

检查一下
1、mysql是否正常启动
2、hive中设置的mysql驱动是否符合版本