从测试环境往生产环境迁移hive元数据时,经常会遇到hive表的location路径不一致的问题,那么就需要批量修改。修改的方法有两种:
1. 修改mysql中的hive meta info(适合批量修改):
update `DBS` set `DB_LOCATION_URI` = replace(DB_LOCATION_URI,"hdfs://cdh570cluster","hdfs://1.xcluster")
update SDS set location =replace(location,"hdfs://cdh570cluster","hdfs://1.xcluster")
2. 使用hive语句修改(适合单独修改):
alter table stg_userlogin_log set location "hdfs://1.xcluster/datacenter/business/stg/stg_userlogin_log"