Apache Impala

Clone this repo:
  1. 155ffd6 IMPALA-9046: Profile counter that indicates if a JVM pause occurred by Sahil Takiar · 3 weeks ago master
  2. dcdbaf1 IMPALA-5022 part 1: Implement core functions of outer join simplification by xqhe · 3 days ago
  3. 462d918 IMPALA-10096: Use the original ordinal if the group by ordinal reference is a constant int by xqhe · 4 weeks ago
  4. 179b148 IMPALA-10074: Set impala-shell's default protocol to hs2 by Thomas Tauber-Marshall · 6 weeks ago
  5. 6f9d951 IMPALA-10179: After join inversion inherit the left child's parallelism by Aman Sinha · 4 days ago

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, Apache Kudu, Amazon S3, Azure Data Lake Storage, Apache Hadoop Ozone and more!
  • Wide analytic SQL support, including window functions and subqueries.
  • On-the-fly code generation using LLVM to generate lightning-fast code tailored specifically to each individual query.
  • Support for the most commonly-used Hadoop file formats, including Apache Parquet and Apache ORC.
  • Support for industry-standard security protocols, including Kerberos, LDAP and TLS.
  • 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. Detailed documentation for administrators and users is available at Apache Impala documentation.

If you are interested in contributing to Impala as a developer, or learning more about Impala's internals and architecture, visit the Impala wiki.

Supported Platforms

Impala only supports Linux at the moment. Impala supports x86_64 and has experimental support for arm64 (as of Impala 4.0). Impala Requirements contains more detailed information on the minimum CPU requirements.

Export Control Notice

This distribution uses cryptographic software and may be subject to export controls. Please refer to EXPORT_CONTROL.md for more information.

Build Instructions

See Impala's developer documentation to get started.

Detailed build notes has some detailed information on the project layout and build.