| commit | f55077007bf68e6cbeaa15cf270c333af847a1f1 | [log] [tgz] |
|---|---|---|
| author | jasonmfehr <jfehr@cloudera.com> | Mon Mar 25 17:03:33 2024 -0700 |
| committer | Impala Public Jenkins <impala-public-jenkins@cloudera.com> | Sat Mar 30 03:48:14 2024 +0000 |
| tree | e4dd3e2cf8e0f7681f8c84594604a2582885f994 | |
| parent | 83734a1220bf99261779bbc5037708a7e1d78df0 [diff] |
IMPALA-12426: Switches the duration fields to be stored in decimal seconds. The original implementation of the completed queries table stored durations in integer nanoseconds. This change modifies the duration fields to be stored as seconds with up to three digits of millisecond precision. Also reduces the default max number of queued queries to a number that will not consume as much memory. Existing sys.impala_query_log tables will need to be dropped. Testing was accomplished by modifying the python custom cluster tests. Change-Id: I842951a132b7b8eadccb09a3674f4c34ac42ff1b Reviewed-on: http://gerrit.cloudera.org:8080/21203 Reviewed-by: Michael Smith <michael.smith@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.