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apache / impala / 67fe0c9c6f220582ee3ceb1ab78d692c2e87f526
commit67fe0c9c6f220582ee3ceb1ab78d692c2e87f526[log] [tgz]
authorMichael Smith <michael.smith@cloudera.com>Mon Nov 21 13:57:13 2022 -0800
committerMichael Smith <michael.smith@cloudera.com>Wed Dec 07 15:54:12 2022 +0000
tree5741dd6416c192c45191bf93adffc2b0cd9059f6
parent8dbc8b733d3712035f8615f477f74c66ec9d63ea [diff]
IMPALA-11736: Copy data between ofs buckets

When Impala moves a file - such as for a LOAD DATA statement - it checks
whether the source and destination are the same filesystem. If the same,
it uses hdfsRename, otherwise it uses hdfsMove to move between
filesystems.

Ozone's ofs protocol supports referencing multiple buckets by path in
the same filesystem, but does not support rename between them. All other
filesystems Impala supports include the bucket name (if they use that
concept) in the authority. This patch updates the function used to
determine whether two paths are in the same filesystem to also check
that they're in the same bucket as a requirement for hdfsRename.

Testing: ran test suite with Ozone.

Change-Id: Ic61f01672fa605fec0377885b13a1621573e424e
Reviewed-on: http://gerrit.cloudera.org:8080/19262
Reviewed-by: Joe McDonnell <joemcdonnell@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
8 files changed
tree: 5741dd6416c192c45191bf93adffc2b0cd9059f6
  1. be/
  2. bin/
  3. cmake_modules/
  4. common/
  5. docker/
  6. docs/
  7. fe/
  8. infra/
  9. java/
  10. lib/
  11. security/
  12. shell/
  13. ssh_keys/
  14. testdata/
  15. tests/
  16. www/
  17. .clang-format
  18. .clang-tidy
  19. .gitattributes
  20. .gitignore
  21. buildall.sh
  22. CMakeLists.txt
  23. EXPORT_CONTROL.md
  24. LICENSE.txt
  25. LOGS.md
  26. NOTICE.txt
  27. README-build.md
  28. README.md
  29. setup.cfg
README.md

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

The fastest way to try out Impala is a quickstart Docker container. You can try out running queries and processing data sets in Impala on a single machine without installing dependencies. It can automatically load test data sets into Apache Kudu and Apache Parquet formats and you can start playing around with Apache Impala SQL within minutes.

To learn more about Impala as a user or administrator, or to try Impala, 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.

Supported OS Distributions

Impala runs on Linux systems only. The supported distros are

  • Ubuntu 16.04/18.04
  • CentOS/RHEL 7/8

Other systems, e.g. SLES12, may also be supported but are not tested by the community.

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.