解决方案汇总：
(1)删除HDFS上的hive数据与hive数据库 hadoop fs )删除HDFS上的hive数据与hive数据库 had
阅读背景：
Caused by: MetaException(message:Hive Schema version 2.1.0 does not match metastore's schema version 1.2.0 Metastore is not upgraded or corrupt)
来源：互联网
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