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Maximum number of reducers that will be used. If the one specified in the configuration property mapred.reduce.tasks is negative, Hive will use this as the maximum number of reducers when automatically determining the number of reducers.

hive.jar.path

• Default Value: (empty)
• Added In: Hive 0.2.0 or earlier

The location of hive_cli.jar that is used when submitting jobs in a separate jvm.

hive.aux.jars.path

• Default Value: (empty)
• Added In: Hive 0.2.0 or earlier

The location of the plugin jars that contain implementations of user defined functions (UDFs) and SerDes.

hive..reloadable.aux.jars.path

• Default Value: (empty)
• Added In: Hive 0.14.0 with HIVE-7553

Jars that can be renewed (added, removed, or updated) by executing the Beeline reload command. These jars can be used just like the auxiliary classes in hive.aux.jars.path for creating a UDF or SerDe.

hive.exec.scratchdir

• Default Value: /tmp/${user.name} in Hive 0.2.0 through 0.8.0; /tmp/hive-${user.name} in Hive 0.8.1 through 0.14.0; or /tmp/hive in Hive 0.14.0 and later
• Added In: Hive 0.2.0; default changed in 0.8.1 and in 0.14.0 with HIVE-6847 and HIVE-8143

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• Default Value: set,reset,dfs,add,delete,compile[,list,reload]
• Added In: Hive 0.13.0 with HIVE-5400 and HIVE-5252
• Changed in Hive 0.14.0 to include "list" and "reload" with HIVE-7592 ("list") and HIVE-7553 ("reload")

Comma separated list of non-SQL Hive commands that users are authorized to execute. This can be used to restrict the set of authorized commands. The supported command list is "set,reset,dfs,add,delete,compile" in Hive 0.13.0 or "set,reset,dfs,add,list,delete,reload,compile,list" starting in Hive 0.14.0 and by default all these commands are authorized. To restrict any of these commands, set hive.security.command.whitelist to a value that does not have the command in it.

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