commit | 52b11ab6aa0dbd2d99e6d583d740858b9f892b5f | [log] [tgz] |
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author | Sai Hemanth Gantasala <saihemanth@cloudera.com> | Wed Feb 07 17:44:42 2024 -0800 |
committer | Impala Public Jenkins <impala-public-jenkins@cloudera.com> | Wed Mar 27 08:27:29 2024 +0000 |
tree | c8931aec94b8e0d6ae9c763397a7e7ad082e2bb2 | |
parent | 0a077fe9921af7c5bac2f9decba371c5eca55d6a [diff] |
IMPALA-12487: Skip reloading file metadata for ALTER_TABLE events with trivial changes in StorageDescriptor IMPALA-11534 skips reloading file metadata for some trivial ALTER_TABLE events. However, ALTER_TABLE events that have trivial changes in StorageDescriptor are not handled in IMPALA-11534. The only changes that require file metadata reload are: location, rowformat, fileformat, serde, and storedAsSubDirectories. The file metadata reload can be skipped for all other changes in SD. Testing: 1) Manual testing by changing SD parameters in local environment. 2) Added unit tests for the same in MetastoreEventsProcessorTest class. Change-Id: I6fd9a9504bf93d2529dc7accbf436ad83e51d8ac Reviewed-on: http://gerrit.cloudera.org:8080/21019 Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Lightning-fast, distributed SQL queries for petabytes of data stored in open data and table formats.
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:
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.
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.
Impala runs on Linux systems only. The supported distros are
Other systems, e.g. SLES12, may also be supported but are not tested by the community.
This distribution uses cryptographic software and may be subject to export controls. Please refer to EXPORT_CONTROL.md for more information.
See Impala's developer documentation to get started.
Detailed build notes has some detailed information on the project layout and build.