1.發現問題：
在hive客戶端或者beeline查詢hive表時候報錯：
根據報錯信息查看，是在集群namenode做了HA之后，產生的hdfs路徑不對的問題；
2.解決問題，修改hive元數據mysql信息表DBS和SDS:
更改語句：
mysql> update sds set LOCATION = REPLACE(LOCATION,'hadoopNode2:8020','cdh-test-gxc');
更改后，查詢表，就沒問題了；
免責聲明！
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