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apache / tez

Apache Tez

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  1. a1fcddb [TEZ-4019] Modify Tez shuffle handler to use AuxiliaryLocalPathHandler instead of LocalDirAllocator (#355) (Jonathan Eagles reviewed by Laszlo Bodor) by jteagles · 8 days ago master
  2. 642f4c0 TEZ-4542: Tez application may fail due to int overflow when record size is large and sort memory is low. (#336) (zhengchenyu reviewed by Rajesh Balamohan) by zhengchenyu · 8 days ago
  3. 9a6757b TEZ-4563: Bump org.bouncycastle:bcprov-jdk18on from 1.77 to 1.78 (#352). (dependabot, Reviewed by Ayush Saxena) by dependabot[bot] · 12 days ago
  4. 7a9211e TEZ-4559: Fix Retry logic in case of Recovery (#353). (Laszlo Bodor, reviewed by Ayush Saxena) by Bodor Laszlo · 2 weeks ago
  5. 66a6ca6 TEZ-4552. Upgrade protobuf to 3.24.4 due to CVE. (#345) (Shilun Fan reviewed by Laszlo Bodor) by slfan1989 · 2 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.