These notes are for Pig 0.18.0 release.

Highlights
==========

The highlights of this release are
  - Support for Hadoop 3, Tez 0.10, Spark 3, Hive 3 and HBase 2 and making them the default
  - Support for Python 3 in streaming

System Requirements
===================

1. Java 1.8.x or newer. Set JAVA_HOME to the root of your
Java installation
2. Ant build tool:  http://ant.apache.org - to build source only
3. This release provides binaries compatible with Hadoop 2.10.x and 3.x releases. 
   - pig-0.18.0.tar.gz binary release is compatible with Hadoop 3, Spark 3, Hive 3 and HBase 2. 
   - pig-0.18.0-hadoop2.tar.gz binary release is compatible with Hadoop 2, Spark 2, Hive 1 and HBase 1.

Trying the Release
==================

1. Download pig-0.18.0.tar.gz
2. Unpack the file: tar -xzvf pig-0.18.0.tar.gz
3. Move into the installation directory: cd pig-0.18.0
4. To run pig without Hadoop cluster, execute the command below. This will
take you into an interactive shell called grunt that allows you to navigate
the local file system and execute Pig commands against the local files
    bin/pig -x local
5. To run on your Hadoop cluster, you need to have HADOOP_HOME/HADOOP_PREFIX and HADOOP_CONF_DIR
environment variables to point to your hadoop installation and then run pig.
To run with Tez or Spark as execution engine instead of MapReduce, install them in your Hadoop cluster. 
The commands below will take you into an interactive shell called grunt
that allows you to navigate Hadoop DFS and execute Pig commands against it.
To execute in Tez or Spark mode, run with -x tez or -x spark option.
    bin/pig
6. To build your own version of pig.jar run
    ant
7. To run unit tests run
    ant test 
8. To build jar file with available user defined functions run commands below.
    cd contrib/piggybank/java
    ant
9. To build the tutorial:
    cd tutorial
    ant
10. To run tutorial follow instructions in http://wiki.apache.org/pig/PigTutorial

Relevant Documentation
======================

Pig Documentation: http://pig.apache.org/docs/r0.17.0/
Pig Wiki: https://cwiki.apache.org/confluence/display/PIG/Index
Pig Tutorial: https://cwiki.apache.org/confluence/display/PIG/PigTutorial