1.发现问题：
在hive客户端或者beeline查询hive表时候报错：
根据报错信息查看，是在集群namenode做了HA之后，产生的hdfs路径不对的问题；
2.解决问题，修改hive元数据mysql信息表DBS和SDS:
更改语句：
mysql> update sds set LOCATION = REPLACE(LOCATION,'hadoopNode2:8020','cdh-test-gxc');
更改后，查询表，就没问题了；
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