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Impala
A modern, massively distributed SQL query engine for Apache Hadoop. It allows you to analyze, transform and combine data from a variety of data sources. With Impala, you can query data, whether stored in HDFS or HBase, in real time.
| First released | 2013 |
| Developed by | Apache Software Foundation |
| Latest stable version | Impala 4 |
| Open-source | Yes |
| Used by | Cloudera, Amazon, Oracle, MapR |
Interesting facts
Impala is a query engine which is integrated into the Hadoop environment and utilizes a number of standard Hadoop components (Metastore, HDFS, HBase, YARN, Sentry) in order to deliver an RDBMS-like experience.