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Comment: add Tez section with new config params (continued)

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Apache Tez was added in Hive 0.13.0 (HIVE-4660 and HIVE-6098).  For information see the design document Hive on Tez.

Besides  Besides the configuration properties listed in this section, these some properties in other sections are also related to Tez:

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Whether to generate the splits locally or in the ApplicationMaster (Tez only).

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Whether to send the query plan via local resource or RPC.

hive.prewarm.enabled

Enables container prewarm for Tez (Hadoop 2 only).

hive.prewarm.numcontainers

Controls the number of containers to prewarm for Tez (Hadoop 2 only).

hive.hive.merge.tezfiles

xxxMerge small files at the end of a Tez DAG.

hive.tez.input.format
  • Default Value: xxorg.apache.hadoop.hive.ql.io.HiveInputFormat
  • Added In: Hive 0.13.0 with HIVE-6498 and HIVE-6360

xxxThe default input format for Tez. Tez groups splits in the AM (ApplicationMaster).

hive.tez.container.size

xxx

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By default Tez will spawn containers of the size of a mapper. This can be used to overwrite.

hive.tez.java.opts

By default Tez will use the Java options from map tasks. This can be used to overwrite.xxx

hive.convert.join.bucket.mapjoin.tez

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