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

Last updated on JANUARY 05, 2020

Applies to:

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


 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?


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