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apache / incubator-tez

Mirror of Apache Tez (Incubating)

Mirrored from https://github.com/apache/incubator-tez.git
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  1. e8dc9f7 TEZ-1269. TaskScheduler prematurely releases containers (bikas) by Bikas Saha · 10 years ago master
  2. 061dfe7 TEZ-1269. TaskScheduler prematurely releases containers (bikas) by Bikas Saha · 10 years ago
  3. 36d08fe TEZ-1119. Support display of user payloads in Tez UI. (hitesh) by Hitesh Shah · 10 years ago
  4. 171da56 TEZ-1089. Change CompositeDataMovementEvent endIndex to a count of by Siddharth Seth · 10 years ago
  5. 55524f0 TEZ-696. Remove implicit copying of processor payload to input and output (bikas) by Bikas Saha · 10 years ago

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.