60 lines
1.4 KiB
Bash
Executable file
60 lines
1.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Run a shell command on all slave hosts.
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#
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# Environment Variables
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#
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# SPARK_SLAVES File naming remote hosts.
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# Default is ${SPARK_CONF_DIR}/slaves.
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# SPARK_CONF_DIR Alternate conf dir. Default is ${SPARK_HOME}/conf.
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# SPARK_SLAVE_SLEEP Seconds to sleep between spawning remote commands.
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# SPARK_SSH_OPTS Options passed to ssh when running remote commands.
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##
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usage="Usage: slaves.sh [--config confdir] command..."
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# if no args specified, show usage
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if [ $# -le 0 ]; then
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echo $usage
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exit 1
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fi
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bin=`dirname "$0"`
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bin=`cd "$bin"; pwd`
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. "$bin/spark-config.sh"
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# If the slaves file is specified in the command line,
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# then it takes precedence over the definition in
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# spark-env.sh. Save it here.
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HOSTLIST=$SPARK_SLAVES
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if [ -f "${SPARK_CONF_DIR}/spark-env.sh" ]; then
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. "${SPARK_CONF_DIR}/spark-env.sh"
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fi
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if [ "$HOSTLIST" = "" ]; then
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if [ "$SPARK_SLAVES" = "" ]; then
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export HOSTLIST="${SPARK_CONF_DIR}/slaves"
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else
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export HOSTLIST="${SPARK_SLAVES}"
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fi
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fi
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echo $"${@// /\\ }"
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# By default disable strict host key checking
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if [ "$SPARK_SSH_OPTS" = "" ]; then
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SPARK_SSH_OPTS="-o StrictHostKeyChecking=no"
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fi
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for slave in `cat "$HOSTLIST"|sed "s/#.*$//;/^$/d"`; do
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ssh $SPARK_SSH_OPTS $slave $"${@// /\\ }" \
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2>&1 | sed "s/^/$slave: /" &
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if [ "$SPARK_SLAVE_SLEEP" != "" ]; then
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sleep $SPARK_SLAVE_SLEEP
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fi
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done
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wait
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