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apache/tez/34bb628e3a25edf5e36e3ca1bf73f06752a43118
commit
34bb628e3a25edf5e36e3ca1bf73f06752a43118
[log]
author
Bodor Laszlo <bodorlaszlo0202@gmail.com>
Tue Feb 27 14:14:44 2024 +0100
committer
GitHub <noreply@github.com>
Tue Feb 27 18:44:44 2024 +0530
tree
a3e39e032f092d76d091f34f9d3d1342bbc35907
parent
f8c2e11d0b469748ea95381e7021266e25e5ac89 [diff]
TEZ-4543: Throw a special exception to DagClient when there is no current DAG (#338). (Laszlo Bodor, reviewed by Ayush Saxena)
7 files changed
tree: a3e39e032f092d76d091f34f9d3d1342bbc35907
  1. .github/
  2. build-tools/
  3. docs/
  4. hadoop-shim/
  5. hadoop-shim-impls/
  6. tez-api/
  7. tez-build-tools/
  8. tez-common/
  9. tez-dag/
  10. tez-dist/
  11. tez-examples/
  12. tez-ext-service-tests/
  13. tez-mapreduce/
  14. tez-plugins/
  15. tez-runtime-internals/
  16. tez-runtime-library/
  17. tez-tests/
  18. tez-tools/
  19. tez-ui/
  20. INSTALL.md ⇨ docs/src/site/markdown/install.md
  21. .asf.yaml
  22. .gitignore
  23. BUILDING.txt
  24. Jenkinsfile
  25. LICENSE
  26. NOTICE
  27. pom.xml
  28. README.md
  29. Tez_DOAP.rdf
README.md

Apache Tez

Apache Tez is a generic data-processing pipeline engine envisioned as a low-level engine for higher abstractions such as Apache Hadoop Map-Reduce, Apache Pig, Apache Hive etc.

At its heart, tez is very simple and has just two components:

  • The data-processing pipeline engine where-in one can plug-in input, processing and output implementations to perform arbitrary data-processing. Every ‘task’ in tez has the following:
  • Input to consume key/value pairs from.
  • Processor to process them.
  • Output to collect the processed key/value pairs.
  • A master for the data-processing application, where-by one can put together arbitrary data-processing ‘tasks’ described above into a task-DAG to process data as desired. The generic master is implemented as a Apache Hadoop YARN ApplicationMaster.