"Similar to using Hive with Amazon EMR, leveraging Impala with Amazon EMR can implement sophisticated data-processing applications with SQL syntax. However, Impala is built to perform faster in certain use cases (see below). With Amazon EMR, you can use Impala as a reliable data warehouse to execute tasks such as data analytics, monitoring, and business intelligence. "Analyze Data with Impala - Amazon Elastic MapReduce
Monday, December 16, 2013
Analyze Data with Impala - Amazon Elastic MapReduce [AWS documentation]
This tends to refute Cloudera competitors' spin about Impala being proprietary...
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