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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