Jeff Zhang created PIG-4666:
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Summary: Add BUILDING.txt for building instruction
Key: PIG-4666
URL: https://issues.apache.org/jira/browse/PIG-4666
Project: Pig
Issue Type: Improvement
Components: build
Affects Versions: 0.15.0
Reporter: Jeff Zhang
Copy the building instruction here wiki page
(https://cwiki.apache.org/confluence/display/PIG/HowToContribute)
{noformat}
Compilation
Make sure that your code introduces no new warnings into the javac compilation.
To compile with Hadoop 1.x
> ant clean jar
To compile with Hadoop 2.x
> ant clean jar -Dhadoopversion=23
The hadoopversion setting has 2 values - 20 and 23. -Dhadoopversion=20 which is
the default denotes the Hadoop 0.20.x and 1.x releases which are the old
versions with JobTracker. -Dhadoopversion=23 denotes the Hadoop 0.23.x and
Hadoop 2.x releases which are the next gen versions of Hadoop which are based
on YARN and have separate Resource Manager and Application Masters instead of a
single JobTracker that managed both resources (cpu, memory) and running of
mapreduce applications. The exact versions of Hadoop 1.x or 2.x pig compiles
against is configured in ivy/libraries.properties and is usually updated to
compile against the latest stable releases.
{noformat}
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