| # Welcome to Impala |
| |
| Lightning-fast, distributed [SQL](http://en.wikipedia.org/wiki/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](https://hadoop.apache.org/), |
| [Apache HBase](http://hbase.apache.org/) and [Amazon S3](http://aws.amazon.com/s3/). |
| * Wide analytic SQL support, including window functions and subqueries. |
| * On-the-fly code generation using [LLVM](http://llvm.org/) to generate CPU-efficient |
| code tailored specifically to each individual query. |
| * Support for the most commonly-used Hadoop file formats, including the |
| [Apache Parquet](https://parquet.incubator.apache.org/) (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](https://impala.apache.org). |
| |
| If you are interested in contributing to Impala as a developer, or learning more about |
| Impala's internals and architecture, visit the |
| [Impala wiki](https://cwiki.apache.org/confluence/display/IMPALA/Impala+Home). |
| |
| ## Supported Platforms |
| |
| Impala only supports Linux at the moment. |
| |
| ## Build Instructions |
| |
| See bin/bootstrap_build.sh. |
| |
| ## Export Control Notice |
| |
| This distribution uses cryptographic software and may be subject to export controls. |
| Please refer to EXPORT\_CONTROL.md for more information. |
