解決Hive的Establishing SSL connection without server's identity verification is not recommended問題
問題描述：
hive> Sat Oct 13 15:36:32 CST 2018 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.
解決方法：
修改~/hive/conf下的hive-site.xml檔案，記住Master和slave節點上都要修改 <property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://Master:3306/hive?createDatabaseIfNotExist=true&useUnicode=true&characterEncoding=UTF-8&useSSL=false</value> <description>JDBC connect string for a JDBC metastore</description> </property>
