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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

Scratch space for Hive jobs. This directory is used by Hive to store the plans for different map/reduce stages for the query as well as to stored the intermediate outputs of these stages.

Hive 0.14.0 and later:  HDFS root scratch dir for Hive jobs which gets created with write all (733) permission.. For each connecting user, an HDFS scratch directory ${hive.exec.scratchdir}/<username> is created with ${hive.scratch.dir.permission}.

hive.exec.scratch.dir.permission

• Default Value: 700
• Added In: Hive 0.12.0 with HIVE-4487

The permission for the user-specific scratch directories that get created in the root scratch directory. (See hive.exec.scratchdir.)

hive.hadoop.supports.splittable.combineinputformat

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