##Hive安装-初始化元数据报错 *** schemaTool failed ***

报错：

org.apache.hadoop.hive.metastore.HiveMetaException: Failed to get schema version.
Underlying cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException : Communications link failure

解决方案：

尝试一：javax.jdo.option.ConnectionURL的值修改为：jdbc:mysql://node1:3306/hive3?createDatabaseIfNotExist=true&useSSL=false&useUnicode=true&characterEncoding=UTF-8

尝试二：数字密码123456变为"123456"