Google Git
Sign in
apache / impala / fe6e6257475b521b3ceeae4f6a898aae6ce3eb94
commitfe6e6257475b521b3ceeae4f6a898aae6ce3eb94[log] [tgz]
authorAdam Tamas <tadam@cloudera.com>Thu Jul 30 10:10:25 2020 +0200
committerGabor Kaszab <gaborkaszab@cloudera.com>Sat Sep 05 09:42:46 2020 +0000
tree1f562b0c513d5dc67c92e5dd9b7d4034c476d81b
parentb7965d8240f3a5cd6972351b7fe1116e4a0835c1 [diff]
IMPALA-10012: ds_hll_sketch() results ascii codec decoding error fix

While the ds_hll_sketch() generates a string value as output the data
is not an ascii encoded text but a bitsketch, because of this, when
the shell get this data it disconnect while it tries to decode it.

The issue can be reproduced with a simple method like using unhex
with a wrong input.
Example: SELECT unhex("aa");

This patch contains a solution, where we replace any not UTF-8
decodable characters if we run into an UnicodeDecodeError after
fetching it.

This solution is working with the Thrift 0.9.3 autogenerated gen-py
but still fails with Thrift 0.11.0.

For Thrift 0.11.0 the error is catched and an error message is sent
(not working with beeswax protocol, because it generates a different
error (TypeError) which can come for other reasons too).

Testing:
-manual testing with these protocols: 'hs2-http', 'hs2', 'beeswax'

Change-Id: I0c5f1290356e21aed8ca7f896f953541942aed05
Reviewed-on: http://gerrit.cloudera.org:8080/16418
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Reviewed-by: Gabor Kaszab <gaborkaszab@cloudera.com>
3 files changed
tree: 1f562b0c513d5dc67c92e5dd9b7d4034c476d81b
  1. be/
  2. bin/
  3. cmake_modules/
  4. common/
  5. docker/
  6. docs/
  7. ext-data-source/
  8. fe/
  9. impala-parent/
  10. infra/
  11. lib/
  12. query-event-hook-api/
  13. security/
  14. shaded-deps/
  15. shell/
  16. ssh_keys/
  17. testdata/
  18. tests/
  19. www/
  20. .clang-format
  21. .clang-tidy
  22. .gitattributes
  23. .gitignore
  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 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

To learn more about Impala as a business user, or to try Impala live or in a VM, 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.

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.