templates.hadoop-1.conf.hadoop-env.sh.mustache Maven / Gradle / Ivy

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# Set Hadoop-specific environment variables here.

# The only required environment variable is JAVA_HOME.  All others are
# optional.  When running a distributed configuration it is best to
# set JAVA_HOME in this file, so that it is correctly defined on
# remote nodes.

# The java implementation to use.  Required.
{{#JAVA_HOME}}export JAVA_HOME={{JAVA_HOME}}{{/JAVA_HOME}}{{^JAVA_HOME}}# export JAVA_HOME=/usr/lib/j2sdk1.5-sun{{/JAVA_HOME}}

# Extra Java CLASSPATH elements.  Optional.
{{#HADOOP_CLASSPATH}}export HADOOP_CLASSPATH={{HADOOP_CLASSPATH}}{{/HADOOP_CLASSPATH}}{{^HADOOP_CLASSPATH}}# export HADOOP_CLASSPATH={{/HADOOP_CLASSPATH}}

# The maximum amount of heap to use, in MB. Default is 1000.
# export HADOOP_HEAPSIZE=2000

# Fixes some problems with native libraries
export HADOOP_COMMON_LIB_NATIVE_DIR=${HADOOP_PREFIX}/lib/native

# Extra Java runtime options.  Empty by default.
{{#HADOOP_OPTS}}export HADOOP_OPTS={{HADOOP_OPTS}}{{/HADOOP_OPTS}}{{^HADOOP_OPTS}}# export HADOOP_OPTS=-server{{/HADOOP_OPTS}}

# Command specific options appended to HADOOP_OPTS when specified
export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS"
export HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_SECONDARYNAMENODE_OPTS"
export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_DATANODE_OPTS"
export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_BALANCER_OPTS"
export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_JOBTRACKER_OPTS"
# export HADOOP_TASKTRACKER_OPTS=
# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
# export HADOOP_CLIENT_OPTS

# Extra ssh options.  Empty by default.
# export HADOOP_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HADOOP_CONF_DIR"

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

# File naming remote slave hosts.  $HADOOP_HOME/conf/slaves by default.
# export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves

# host:path where hadoop code should be rsync'd from.  Unset by default.
# export HADOOP_MASTER=master:/home/$USER/src/hadoop

# Seconds to sleep between slave commands.  Unset by default.  This
# can be useful in large clusters, where, e.g., slave rsyncs can
# otherwise arrive faster than the master can service them.
# export HADOOP_SLAVE_SLEEP=0.1

# The directory where pid files are stored. /tmp by default.
# NOTE: this should be set to a directory that can only be written to by
#       the users that are going to run the hadoop daemons.  Otherwise there is
#       the potential for a symlink attack.
{{#HADOOP_PID_DIR}}export HADOOP_PID_DIR={{HADOOP_PID_DIR}}{{/HADOOP_PID_DIR}}{{^HADOOP_PID_DIR}}# export HADOOP_PID_DIR=/var/hadoop/pids{{/HADOOP_PID_DIR}}

# A string representing this instance of hadoop. $USER by default.
{{#HADOOP_IDENT_STRING}}export HADOOP_IDENT_STRING={{HADOOP_IDENT_STRING}}{{/HADOOP_IDENT_STRING}}{{^HADOOP_IDENT_STRING}}# export HADOOP_IDENT_STRING=$USER{{/HADOOP_IDENT_STRING}}

# The scheduling priority for daemon processes.  See 'man nice'.
# export HADOOP_NICENESS=10