What is a .HIVERC file?

A .hiverc file is a configuration file used by Hive to set command line options and defaults. It is a plain text file that is read by the Hive shell (hive) every time it is started.

The .hiverc file can contain any valid HiveQL statements, as well as special commands that start with the prefix set. These commands are used to set various configuration options that affect the behavior of Hive.

Here are some examples of set commands that can be used in a .hiverc file:


set hive.cli.print.header=true; -- Print column headers in query results
set hive.exec.dynamic.partition.mode=nonstrict; -- Allow dynamic partitioning
set hive.exec.compress.output=true; -- Compress query output
set hive.vectorized.execution.enabled=true; -- Enable vectorized query execution

You can also use the .hiverc file to define aliases for commonly used commands or to include other files. For example:


-- Define an alias for the 'show tables' command
create alias showtables
  as 'show tables';

-- Include another configuration file
!include /path/to/another/hiverc/file;

When the Hive shell (hive) is started, it reads the .hiverc file located in the current user's home directory (~/.hiverc) by default. However, you can specify a different location for the .hiverc file using the -i option when starting the Hive shell:


hive -i /path/to/my/hiverc/file

Overall, the .hiverc file is a useful tool for customizing the Hive shell and making it more efficient to use.

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