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60127ff93d
First cut at 'new features' topic. Includes the Incompatible Changes subtopic for Impala 2.8. Also did some cleanup throughout the Incompatible Changes page: - Took out references to Cloudera release numbers from titles. - Suppressed the display of ancient subtopics from the Impala beta days, which are intertwined with things like what version of Cloudera Manager was supported. Patch set 3: More on MT_DOP for COMPUTE STATS. Address comments from Greg and MJ. Added incompatible change for IMPALA-4160 - Llama removal. Also pulled out hidden discussion and obsolete details of no-op query options. Change-Id: I7c47f422e509cec6d3eb8aaa82294b584f393aed Reviewed-on: http://gerrit.cloudera.org:8080/5668 Reviewed-by: Jim Apple <jbapple-impala@apache.org> Tested-by: Impala Public Jenkins
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.
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.