Final upmerge before merge to master
tree: 45821aeaa8cd571f054260a4cff108a8886234c1
  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. tez-ui/
  14. .gitignore
  15. BUILDING.txt
  16. CHANGES.txt
  17. KEYS
  18. LICENSE.txt
  19. NOTICE.txt
  20. pom.xml
  22. Tez_DOAP.rdf

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.