Basic Hadoop Commands & Resources

Install location – /opt/interset/hadoop-2.5.2
                         – Symlink @ /opt/interset/hadoop

Confirm file/folder permissions – ls -l data/interset/hadoop/ /data/interset/hadoop/hdfs/

Start Hadoop – start-dfs.sh

Stop Hadoop – stop-dfs.sh

Confirm Hadoop is running – jps
- Look for “DataNode”, “NameNode”, and potentially “SecondaryNameNode”

HDFS web interface – http://<ANALYTICS_SERVER>:50070