今天配置hive，启动hive server和 hive时，启动异常
异常如下：WARN: Establishing SSL connection without server’s identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn’t set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to ‘false’. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
$ bin/hive --service metastore #指令报错如下 slave1服务器端
$ bin/hive #指令报错如下 master客户端
原因分析：slave1服务器端的hive/conf 下 hive-site.xml 配置出错（少了连接所需协议）
可参考 解决办法