2009-05-19 00:30:38 -04:00
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# Set Hadoop-specific environment variables here.
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# The only required environment variable is JAVA_HOME. All others are
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# optional. When running a distributed configuration it is best to
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# set JAVA_HOME in this file, so that it is correctly defined on
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# remote nodes.
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# The java implementation to use. Required.
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2010-01-03 14:17:50 -05:00
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# export JAVA_HOME=/usr/lib/j2sdk1.6-sun
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2009-05-19 00:30:38 -04:00
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# Extra Java CLASSPATH elements. Optional.
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# export HADOOP_CLASSPATH=
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# The maximum amount of heap to use, in MB. Default is 1000.
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# export HADOOP_HEAPSIZE=2000
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# Extra Java runtime options. Empty by default.
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# export HADOOP_OPTS=-server
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# Command specific options appended to HADOOP_OPTS when specified
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export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS"
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export HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_SECONDARYNAMENODE_OPTS"
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export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_DATANODE_OPTS"
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export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_BALANCER_OPTS"
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export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_JOBTRACKER_OPTS"
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# export HADOOP_TASKTRACKER_OPTS=
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# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
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# export HADOOP_CLIENT_OPTS
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# Extra ssh options. Empty by default.
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# export HADOOP_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HADOOP_CONF_DIR"
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# Where log files are stored. $HADOOP_HOME/logs by default.
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# export HADOOP_LOG_DIR=${HADOOP_HOME}/logs
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# File naming remote slave hosts. $HADOOP_HOME/conf/slaves by default.
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# export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves
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# host:path where hadoop code should be rsync'd from. Unset by default.
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# export HADOOP_MASTER=master:/home/$USER/src/hadoop
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# Seconds to sleep between slave commands. Unset by default. This
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# can be useful in large clusters, where, e.g., slave rsyncs can
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# otherwise arrive faster than the master can service them.
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# export HADOOP_SLAVE_SLEEP=0.1
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# The directory where pid files are stored. /tmp by default.
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# export HADOOP_PID_DIR=/var/hadoop/pids
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# A string representing this instance of hadoop. $USER by default.
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# export HADOOP_IDENT_STRING=$USER
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# The scheduling priority for daemon processes. See 'man nice'.
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# export HADOOP_NICENESS=10
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