springboot 2.X多数据源配置时：

Connection marked as broken because of SQLSTATE(08S01), ErrorCode(0);

Communications link failure

发现连接池配置问题，于是添加设置

spring.datasource.dynamic.datasource.hive.continue-on-error=true
spring.datasource.dynamic.datasource.hive.hikari.max-pool-size=100
spring.datasource.dynamic.datasource.hive.hikari.max-lifetime=60000，
问题解决，附大佬博客地址！！！！


附一个链接：https://blog.csdn.net/luckyrocks/article/details/107782284