Tag Archives: Apache Orc

Some tips about Hive

      No Comments on Some tips about Hive

Found some tips about Hive in my learning progress: 1. When I start “bin/hive” at first time, these errors report:

The solution is simple:

Actually, we’d better use mysql instead of derby for multi-users environment. 2. Control the number of mappers for SQL jobs. If a SQL job… Read more »