IMPALA-13967: Move away from setting user parameter in execute

ImpalaConnection.execute and ImpalaConnection.execute_async have 'user'
parameter to set specific user to run the query. This is mainly legacy
of BeeswaxConnection, which allows using 1 client to run queries under
different usernames.

BeeswaxConnection and ImpylaHS2Connection actually allow specifying one
user per client. Doing so will simplify user-specific tests such as
test_ranger.py that often instantiates separate clients for admin user
and regular user. There is no need to specify 'user' parameter anymore
when calling execute() or execute_async(). Thus, reducing potential bugs
from forgetting to set one or setting it with incorrect value.

This patch applies one-user-per-client practice as much as possible for
test_ranger.py, test_authorization.py, and test_admission_controller.py.
Unused code and pytest fixtures are removed. Few flake8 issues are
addressed too. Their default_test_protocol() is overridden to return
'hs2'.

ImpylaHS2Connection.execute() and ImpylaHS2Connection.execute_async()
are slightly modified to assume ImpylaHS2Connection.__user if 'user'
parameter in None. BeeswaxConnection remains unchanged.

Extend ImpylaHS2ResultSet.__convert_result_value() to lower case boolean
return value to match beeswax result.

Testing:
Run and pass all modified tests in exhaustive exploration.

Change-Id: I20990d773f3471c129040cefcdff1c6d89ce87eb
Reviewed-on: http://gerrit.cloudera.org:8080/22782
Reviewed-by: Riza Suminto <riza.suminto@cloudera.com>
Tested-by: Riza Suminto <riza.suminto@cloudera.com>
13 files changed
tree: 7968dd6154a72c6bfe345006ac571a995110d113
  1. .devcontainer/
  2. be/
  3. bin/
  4. cmake_modules/
  5. common/
  6. docker/
  7. docs/
  8. fe/
  9. infra/
  10. java/
  11. lib/
  12. package/
  13. security/
  14. shell/
  15. ssh_keys/
  16. testdata/
  17. tests/
  18. www/
  19. .clang-format
  20. .clang-tidy
  21. .gitattributes
  22. .gitignore
  23. .isort.cfg
  24. buildall.sh
  25. CMakeLists.txt
  26. EXPORT_CONTROL.md
  27. LICENSE.txt
  28. LOGS.md
  29. NOTICE.txt
  30. README-build.md
  31. README.md
  32. setup.cfg
README.md

Welcome to Impala

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:

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.