hadoop/hadoop-common-project/hadoop-common/src/main/bin/hadoop-layout.sh.example

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#
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##
## VENDORS!
##
## This is where you can redefine the layout of Hadoop directories
## and expect to be reasonably compatible.  Needless to say, this
## is expert level stuff and one needs to tread carefully.
##
## If you move HADOOP_LIBEXEC_DIR from some location that
## isn't bin/../libexec, you MUST define either HADOOP_LIBEXEC_DIR
## or have HADOOP_PREFIX/libexec/hadoop-config.sh and
## HADOOP_PREFIX/libexec/hadoop-layout.sh (this file) exist.

## NOTE:
##
## hadoop-functions.sh gets executed BEFORE this file.  So you can
##   redefine all of those functions here.
##
## *-env.sh get executed AFTER this file but generally too late to
## override the settings (but not the functions!) here.  However, this
## also means you cannot use things like HADOOP_CONF_DIR for these
## definitions.

####
# Common disk layout
####

# Default location for the common/core Hadoop project
# export HADOOP_COMMON_HOME=$HADOOP_PREFIX

# Relative locations where components under HADOOP_COMMON_HOME are located
# export HADOOP_COMMON_DIR="share/hadoop/common"
# export HADOOP_COMMON_LIB_JARS_DIR="share/hadoop/common/lib"
# export HADOOP_COMMON_LIB_NATIVE_DIR="lib/native"

####
# HDFS disk layout
####

# Default location for the HDFS subproject
# export HADOOP_HDFS_HOME=$HADOOP_PREFIX

# Relative locations where components under HADOOP_HDFS_HOME are located
# export HDFS_DIR="share/hadoop/hdfs"
# export HDFS_LIB_JARS_DIR="share/hadoop/hdfs/lib"

####
# YARN disk layout
####

# Default location for the YARN subproject
# export HADOOP_YARN_HOME=$HADOOP_PREFIX

# Relative locations where components under HADOOP_YARN_HOME are located
# export YARN_DIR="share/hadoop/yarn"
# export YARN_LIB_JARS_DIR="share/hadoop/yarn/lib"

# Default location for the MapReduce subproject
# export HADOOP_MAPRED_HOME=$HADOOP_PREFIX

####
# MapReduce disk layout
####

# Relative locations where components under HADOOP_MAPRED_HOME are located
# export MAPRED_DIR="share/hadoop/mapreduce"
# export MAPRED_LIB_JARS_DIR="share/hadoop/mapreduce/lib"

####
# Misc paths
####

# setup a default TOOL_PATH, where things like distcp lives
# note that this path only gets added for certain commands and not
# part of the general classpath
# export TOOL_PATH="$HADOOP_PREFIX/share/hadoop/tools/lib/*"