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Github uses different syntax to render README.md and its wiki pages, for no obvious reason. Change-Id: I8905bf6ad7a72e6e1bfb3beb83f522ca5956128b Reviewed-on: http://gerrit.cloudera.org:8080/272 Reviewed-by: Alex Leblang <alex.leblang@cloudera.com> Tested-by: Henry Robinson <henry@cloudera.com>
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Welcome to Impala
Lightning-fast, distributed SQL queries for petabytes of data stored in Apache Hadoop clusters.
Impala is a modern, massively-distributed, massively-parallel, C++ query engine that lets you analyze, transform and combine data from a variety of data sources:
- Best of breed performance and scalability.
- Support for data stored in HDFS, Apache HBase and Amazon S3.
- Wide analytic SQL support, including window functions and subqueries.
- On-the-fly code generation using LLVM to generate CPU-efficient code tailored specifically to each individual query.
- Support for the most commonly-used Hadoop file formats, including the Apache Parquet (incubating) project.
- Apache-licensed, 100% open source.
More about Impala
To learn more about Impala as a business user, or to try Impala live or in a VM, please visit the Impala homepage.
If you are interested in contributing to Impala as a developer, or learning more about Impala's internals and architecture, visit the Impala wiki.