Getting started with the book and was trying to follow the example in the book.
1. Cloned the repo and at the hadoop-book dir ran the following:
mvn package -DskipTests -Dhadoop.version=1.1.2
Build was successful.
2. export HADOOP_CLASSPATH=hadoop-examples.jar
3. hadoop MaxTemperature input/ncdc/sample.txt output
Got an error: Unable to load realm mapping info from SCVDynamicStore. Do you know why? This is a MacOS X 10.7.5.
I'm not sure how to solve this for Java 7, but for Java 6 I used this to get it working: http://stackoverflow.com/questions/7134723/hadoop-on-osx-unable-to-load-realm-info-from-scdynamicstore