Hadoop 网络拓扑相关配置脚本 topology.script.file.name

Topology Scripts

Sample 1: Script with datafile

Topology Script

HADOOP_CONF=/etc/hadoop/conf

while [ $# -gt 0 ] ; do
nodeArg=$1
exec< ${HADOOP_CONF}/topology.data
result=""
while read line ; do
ar=( $line )
if [ "${ar[0]}" = "$nodeArg" ] ; then
result="${ar[1]}"
fi
done
shift
if [ -z "$result" ] ; then
echo -n "/default/rack "
else
echo -n "$result "
fi
done

Topology data

hadoopdata1.ec.com     /dc1/rack1
hadoopdata1            /dc1/rack1
10.1.1.1               /dc1/rack2