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Liang-Chi Hsieh 8f60a90688 HADOOP-17125. Use snappy-java in SnappyCodec (#2297) 
This switches the SnappyCodec to use the java-snappy codec, rather than the native one.

To use the codec, snappy-java.jar (from org.xerial.snappy) needs to be on the classpath.

This comesin as an avro dependency,  so it is already on the hadoop-common classpath,
as well as in hadoop-common/lib.
The version used is now managed in the hadoop-project POM; initially 1.1.7.7

Contributed by DB Tsai and Liang-Chi Hsieh

Change-Id: Id52a404a0005480e68917cd17f0a27b7744aea4e
 		2020-10-06 17:15:17 +01:00
..
bin HADOOP-17125. Use snappy-java in SnappyCodec (#2297) 2020-10-06 17:15:17 +01:00
byteman HDDS-342. Add example byteman script to print out hadoop rpc traffic. 2018-08-22 14:48:22 -07:00
docker HADOOP-17246. Addendum patch for branch-3.3. 2020-09-16 16:45:20 +09:00
README.md HADOOP-12651. Replace dev-support with wrappers to Yetus (aw) 2016-01-21 13:03:34 -08:00
determine-flaky-tests-hadoop.py HADOOP-11965. determine-flaky-tests needs a summary mode. Contributed by Yufei Gu, 2015-06-17 20:58:17 -07:00
findHangingTest.sh HADOOP-13963. /bin/bash is hard coded in some of the scripts. Contributed by Ajay Yadav. 2017-08-04 10:40:52 -07:00
verify-xml.sh HADOOP-13963. /bin/bash is hard coded in some of the scripts. Contributed by Ajay Yadav. 2017-08-04 10:40:52 -07:00
win-paths-eg.cmd HADOOP-14667. Flexible Visual Studio support. Contributed by Allen Wittenauer 2018-03-19 16:05:55 -07:00

README.md

This directory contains tools to help in the development and release of Apache Hadoop.

  • bin

    • releasedocmaker

      Build release notes for a given Hadoop project or subproject. This is called from Maven when -Preleasedocs is used. See BUILDING.txt for more information.

    • shelldocs

      Create documentation for the Unix Shell API. This is called from Maven when -Pshelldocs is used.

    • smart-apply-patch

      Intelligently apply a patch file to a source tree.

    • test-patch

      Test a patch against a source tree.

  • create-release.sh

    Helps REs create a release of Apache Hadoop for distribution.

  • determine-flaky-tests-hadoop.py

    Given a jenkins test job, this script examines all runs of the job done within specified period of time (number of days prior to the execution time of this script), and reports all failed tests.

  • docker

    Various helpers for the start-build-env.sh script, including the Dockerfile itself. See parent BUILDING.txt for more information.

  • findHangingTest.sh

    Finds hanging test from Jenkins build output.

Previously, the scripts test-patch.sh, smart-apply-patch.sh, releasedocmaker.py, and shelldocs.py were in this directory. They have been moved to the Apache Yetus project (https://yetus.apache.org). These scripts have been replaced with wrapper scripts located in the bin directory. Command line options are generally different than the previous versions that shipped with older versions of Apache Hadoop.

The wrapper scripts will download, verify (if GPG is installed), and cache a local copy of Apache Yetus in the hadoop/patchprocess directory. The version that is used may be overridden by setting the HADOOP_YETUS_VERSION environment variable. The cache directory may be overwritten by setting the HADOOP_PATCHPROCESS directory. If a local version of Apache Yetus is already installed, it may be used instead by setting the YETUS_HOME environment variable to point to that directory.