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lokkju/nodes-command.sh

Last active April 1, 2020 08:49
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Run a command on all nodes in a hadoop cluster
Raw
nodes-command.sh
# ssh -A hadoop@<masternode>
# SCRIPT=<yourscriptfile.sh>
declare nodes=`yarn node -list 2> /dev/null | grep internal | cut -d' ' -f1 | cut -d: -f1`
for node in $nodes
do
ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null hadoop@$node 'bash -s' < $SCRIPT
done
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