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apache / tez / a2d5768bc274684719dff64b46967264f3d18c0e
commita2d5768bc274684719dff64b46967264f3d18c0e[log] [tgz]
authorBikas Saha <bikas@apache.org>Sat Nov 08 11:59:14 2014 -0800
committerBikas Saha <bikas@apache.org>Sat Nov 08 11:59:14 2014 -0800
tree3ad31fcd1b154afd729c9b5e7e08d8df06c6326e
parentc6c08c18b77870e71298adb2dc51908473434768 [diff]
TEZ-1758. TezClient should provide YARN diagnostics when the AM crashes (bikas)
5 files changed
tree: 3ad31fcd1b154afd729c9b5e7e08d8df06c6326e
  1. docs/
  2. tez-api/
  3. tez-common/
  4. tez-dag/
  5. tez-dist/
  6. tez-examples/
  7. tez-mapreduce/
  8. tez-plugins/
  9. tez-runtime-internals/
  10. tez-runtime-library/
  11. tez-tests/
  12. tez-tools/
  13. INSTALL.md ⇨ docs/src/site/markdown/install.md
  14. .gitignore
  15. BUILDING.txt
  16. CHANGES.txt
  17. KEYS
  18. LICENSE.txt
  19. NOTICE.txt
  20. pom.xml
  21. README.md
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 it's 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.