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apache / tez

Apache Tez

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  1. c745edf TEZ-4557: Revert TEZ-4303, NoClassDefFoundError because of missing httpclient jar (#349) (Raghav Aggarwal reviewed by Laszlo Bodor) by Raghav Aggarwal · 4 weeks ago master
  2. 19b2351 TEZ-4554: Counter for used nodes within a DAG (#362) (Laszlo by Bodor Laszlo · 5 weeks ago
  3. 0ac505b TEZ-4540: Reading proto data more than 2GB from multiple splits fails (#334) (Raghav Aggarwal reviewed by Laszlo Bodor) by Raghav Aggarwal · 5 weeks ago
  4. 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 · 7 weeks ago
  5. 38c5aac TEZ-4564: TezClient to expose Tez AM host:port (#356). (Laszlo Bodor, reviewed by Ayush Saxena) by Bodor Laszlo · 9 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.