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apache / tez

Apache Tez

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  1. b5b6226 TEZ-4555: Fail fast in LocalClient if the dirs (log, local) haven't been created (#348). (Laszlo Bodor, reviewed by Ayush Saxena) by Bodor Laszlo · 2 days ago master
  2. f080031 TEZ-4548: InputDataInformationEvent to be read from serialized payload from filesystem (#341) (Laszlo Bodor reviewed by Ayush Saxena) by Bodor Laszlo · 4 weeks ago
  3. 34bb628 TEZ-4543: Throw a special exception to DagClient when there is no current DAG (#338). (Laszlo Bodor, reviewed by Ayush Saxena) by Bodor Laszlo · 9 weeks ago
  4. f8c2e11 TEZ-4529: Apache Tez Release 0.10.3: Update SNAPSHOT versions, DOAP file (#335). (Laszlo Bodor, reviewed by Ayush Saxena) by Bodor Laszlo · 3 months ago
  5. 8b40858 TEZ-4451: ThreadLevel IO Stats Support for TEZ. (#331) (Ayush Saxena reviewed by Laszlo Bodor, Steve Loughran) by Ayush Saxena · 3 months 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.