surendra singh lilhore created HDFS-6576:
--------------------------------------------
Summary: Datanode log is generating at root directory in security
mode
Key: HDFS-6576
URL: https://issues.apache.org/jira/browse/HDFS-6576
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode
Affects Versions: 2.4.0
Reporter: surendra singh lilhore
Priority: Minor
In hadoop-env.sh script we are exporting HADOOP_SECURE_DN_LOG_DIR , but in
above line export statement for HADOOP_LOG_DIR is commented
If in user environment HADOOP_LOG_DIR is not exported then
HADOOP_SECURE_DN_LOG_DIR env variable will export with "/" value and DN will
logs in root directory.
{noformat}
# Where log files are stored. $HADOOP_HOME/logs by default.
#export HADOOP_LOG_DIR=${HADOOP_LOG_DIR}/$USER
# Where log files are stored in the secure data environment.
export HADOOP_SECURE_DN_LOG_DIR=${HADOOP_LOG_DIR}/${HADOOP_HDFS_USER}
{noformat}
I think we should comment this line.
In hadoop-daemon.sh already handled case if value of HADOOP_SECURE_DN_LOG_DIR
and HADOOP_LOG_DIR is empty.
In hadoop-daemon.sh we assigning value of HADOOP_SECURE_DN_LOG_DIR in
HADOOP_LOG_DIR and after that we are checking if HADOOP_LOG_DIR is empty then
HADOOP_LOG_DIR env variable export with "$HADOOP_PREFIX/logs" value
{noformat}
# Determine if we're starting a secure datanode, and if so, redefine
appropriate variables
if [ "$command" == "datanode" ] && [ "$EUID" -eq 0 ] && [ -n
"$HADOOP_SECURE_DN_USER" ]; then
export HADOOP_PID_DIR=$HADOOP_SECURE_DN_PID_DIR
export HADOOP_LOG_DIR=$HADOOP_SECURE_DN_LOG_DIR
export HADOOP_IDENT_STRING=$HADOOP_SECURE_DN_USER
starting_secure_dn="true"
fi
if [ "$HADOOP_IDENT_STRING" = "" ]; then
export HADOOP_IDENT_STRING="$USER"
fi
# get log directory
if [ "$HADOOP_LOG_DIR" = "" ]; then
export HADOOP_LOG_DIR="$HADOOP_PREFIX/logs"
fi
{noformat}
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