These notes are for Pig 0.7.0 release. Highlights ========== - Redesign the LoadFunc and StoreFunc interface for future growth of Pig. PIG-966 - Switch Pig local mode to use hadoop local mode. PIG-1053 - Provide more information for hadoop job launched, such as job id and number of spills. PIG-1215, PIG-1102 - More aggressive use of hadoop distributed cache. PIG-872, PIG-1218 - Over 100 bug fixes and improvements. Incompatibilities ================= Please check http://wiki.apache.org/pig/Pig070IncompatibleChanges System Requirements =================== 1. Java 1.6.x or newer, preferably from Sun. Set JAVA_HOME to the root of your Java installation 2. Ant build tool: http://ant.apache.org - to build source only 3. Cygwin: http://www.cygwin.com/ - to run under Windows 4. This release is compatible with Hadoop 0.20.x releases Trying the Release ================== 1. Download pig-0.7.0.tar.gz 2. Unpack the file: tar -xzvf pig-0.7.0.tar.gz 3. Move into the installation directory: cd pig-0.7.0 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 set PIG_CLASSPATH environment variable to point to the directory with your hadoop-site.xml file and then run pig. 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 export PIG_CLASSPATH=/hadoop/conf 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. This currently only works with Java 1.6.x. 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 ====================== http://hadoop.apache.org/pig/docs/r0.7.0/ http://wiki.apache.org/pig/ http://wiki.apache.org/pig/Pig070IncompatibleChanges