How many reducers are used when loading data into a table? (Doc ID 1985962.1)

Last updated on MARCH 03, 2015

Applies to:

Oracle Loader for Hadoop - Version 3.2.0 and later
Information in this document applies to any platform.

Goal

 When data sampling is used to load data into a single partition of a table, the number of reducers performing the load does not always match the number of reducers defined for the load.   What factors determine the number of reducers that will be used?

Solution

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