mirror of
https://github.com/apache/impala.git
synced 2026-01-10 00:00:16 -05:00
1addd2ce8c
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>
27 lines
1.2 KiB
Markdown
27 lines
1.2 KiB
Markdown
# 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](http://impala.io/index.html).
|
|
|
|
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://github.com/cloudera/Impala/wiki).
|