Final upmerge before merge to master
tree: 45821aeaa8cd571f054260a4cff108a8886234c1
  1. .gitignore
  2. BUILDING.txt
  3. CHANGES.txt
  4. KEYS
  5. LICENSE.txt
  6. NOTICE.txt
  8. Tez_DOAP.rdf
  9. docs/
  10. pom.xml
  11. tez-api/
  12. tez-common/
  13. tez-dag/
  14. tez-dist/
  15. tez-examples/
  16. tez-mapreduce/
  17. tez-plugins/
  18. tez-runtime-internals/
  19. tez-runtime-library/
  20. tez-tests/
  21. tez-tools/
  22. tez-ui/

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.