This is the documentation for Cloudera Impala 2.1.x.
Documentation for other versions is available at

Impala Concepts and Architecture

The following sections provide background information to help you become productive using Cloudera Impala and its features. Where appropriate, the explanations include context to help understand how aspects of Impala relate to other technologies you might already be familiar with, such as relational database management systems and data warehouses, or other Hadoop components such as Hive, HDFS, and HBase.

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