Apache Tez

Clone this repo:
  1. 0ac505b TEZ-4540: Reading proto data more than 2GB from multiple splits fails (#334) (Raghav Aggarwal reviewed by Laszlo Bodor) by Raghav Aggarwal · 3 days ago master
  2. e08d027 TEZ-4568: ProfileServlet: add html to output formats and prepare for profiler 3.0 (#360) (Laszlo Bodor reviewed by Ayush Saxena) by Bodor Laszlo · 2 weeks ago
  3. 38c5aac TEZ-4564: TezClient to expose Tez AM host:port (#356). (Laszlo Bodor, reviewed by Ayush Saxena) by Bodor Laszlo · 4 weeks ago
  4. 30e9cdb TEZ-4566: NPE in TezChild while fetching attemptId when container is asked to shut down. (#358). (Ayush Saxena, reviewed by Laszlo Bodor) by Ayush Saxena · 5 weeks ago
  5. a1fcddb [TEZ-4019] Modify Tez shuffle handler to use AuxiliaryLocalPathHandler instead of LocalDirAllocator (#355) (Jonathan Eagles reviewed by Laszlo Bodor) by jteagles · 6 weeks 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 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.