58 lines
1.5 KiB
Bash
58 lines
1.5 KiB
Bash
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#!/bin/bash
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#
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# Run a shell command on all regionserver hosts.
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#
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# Environment Variables
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#
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# HBASE_REGIONSERVERS File naming remote hosts.
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# Default is ${HADOOP_CONF_DIR}/regionservers
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# HADOOP_CONF_DIR Alternate conf dir. Default is ${HADOOP_HOME}/conf.
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# HBASE_CONF_DIR Alternate hbase conf dir. Default is ${HBASE_HOME}/conf.
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# HADOOP_SLAVE_SLEEP Seconds to sleep between spawning remote commands.
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# HADOOP_SSH_OPTS Options passed to ssh when running remote commands.
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#
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# Modelled after $HADOOP_HOME/bin/slaves.sh.
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usage="Usage: regionservers [--config=<confdir>] [--hbaseconfig=<hbase-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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. "$bin"/hbase-config.sh
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# If the regionservers file is specified in the command line,
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# then it takes precedence over the definition in
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# hbase-env.sh. Save it here.
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HOSTLIST=$HBASE_REGIONSERVERS
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if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
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. "${HADOOP_CONF_DIR}/hadoop-env.sh"
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fi
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if [ -f "${HBASE_CONF_DIR}/hbase-env.sh" ]; then
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. "${HBASE_CONF_DIR}/hbase-env.sh"
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fi
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if [ "$HOSTLIST" = "" ]; then
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if [ "$HBASE_REGIONSERVERS" = "" ]; then
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export HOSTLIST="${HBASE_CONF_DIR}/regionservers"
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else
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export HOSTLIST="${HBASE_REGIONSERVERS}"
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fi
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fi
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for regionserver in `cat "$HOSTLIST"`; do
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ssh $HADOOP_SSH_OPTS $regionserver $"${@// /\\ }" \
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2>&1 | sed "s/^/$regionserver: /" &
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if [ "$HADOOP_SLAVE_SLEEP" != "" ]; then
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sleep $HADOOP_SLAVE_SLEEP
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fi
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done
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wait
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