[HADOOP-7658] to fix hadoop config template

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.20.205.0, 0.23.0
• Fix Version/s: 0.20.205.0, 0.23.0
• Assignee: Eric Yang
• Reporter: Giridharan Kesavan
• Created: 20/Sep/11 00:58
• Updated: 19/Oct/11 00:26
• Resolved: 04/Oct/11 00:31

Description

hadoop rpm config template by default sets the HADOOP_SECURE_DN_USER, HADOOP_SECURE_DN_LOG_DIR & HADOOP_SECURE_DN_PID_DIR
the above values should only be set for secured deployment ;

1. On secure datanodes, user to run the datanode as after dropping privileges
   export HADOOP_SECURE_DN_USER=${HADOOP_HDFS_USER}

1. Where log files are stored. $HADOOP_HOME/logs by default.
   export HADOOP_LOG_DIR=${HADOOP_LOG_DIR}/$USER

1. Where log files are stored in the secure data environment.
   export HADOOP_SECURE_DN_LOG_DIR=${HADOOP_LOG_DIR}/${HADOOP_HDFS_USER}

1. The directory where pid files are stored. /tmp by default.
   export HADOOP_PID_DIR=${HADOOP_PID_DIR}
   export HADOOP_SECURE_DN_PID_DIR=${HADOOP_PID_DIR}