67 lines
2.7 KiB
Plaintext
67 lines
2.7 KiB
Plaintext
# 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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export JAVA_HOME=${JAVA_HOME}
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# Hadoop Installation Prefix
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HADOOP_PREFIX=${HADOOP_PREFIX}
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# Hadoop Configuration Directory
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HADOOP_CONF_DIR=${HADOOP_CONF_DIR}
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export HADOOP_CONF_DIR=${HADOOP_CONF_DIR:-$HADOOP_PREFIX/conf}
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# Extra Java CLASSPATH elements. Optional.
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# export HADOOP_CLASSPATH="<extra_entries>:$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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# if [ "$HADOOP_OPTS" == "" ]; then export HADOOP_OPTS=-server; else HADOOP_OPTS+=" -server"; fi
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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="-Dcom.sun.management.jmxremote $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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# File naming remote slave hosts. $HADOOP_PREFIX/conf/slaves by default.
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export HADOOP_SLAVES=${HADOOP_CONF_DIR}/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/$USER/src/hadoop
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# Seconds to sleep between slave commands. Unset by default. This
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# can be useful in large clusters, where, e.g., slave rsyncs can
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# otherwise arrive faster than the master can service them.
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# export HADOOP_SLAVE_SLEEP=0.1
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# The directory where pid files are stored. /tmp by default.
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HADOOP_PID_DIR=${HADOOP_PID_DIR}
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export HADOOP_PID_DIR=${HADOOP_PID_DIR:-$HADOOP_PREFIX/var/run}
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# A string representing this instance of hadoop. $USER by default.
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export HADOOP_IDENT_STRING=`whoami`
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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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# Allow Hadoop to run with sysctl net.ipv6.bindv6only = 1
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# export HADOOP_ALLOW_IPV6=yes
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# Where log files are stored. $HADOOP_PREFIX/logs by default.
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HADOOP_LOG_DIR=${HADOOP_LOG_DIR}/$HADOOP_IDENT_STRING
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export HADOOP_LOG_DIR=${HADOOP_LOG_DIR:-$HADOOP_PREFIX/var/log}
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