leave_cluster.sh

#!/bin/bash

if maprcli node list -columns id; then
        NODEID=$(maprcli node list -columns id -filter hostname==`hostname -f` -noheader | cut -f 1 -d ' ')
        NODEVOLUMES=$(maprcli volume list -columns volumename  | egrep "^mapr.`hostname -f`")

        for volume in $NODEVOLUMES; do
                maprcli volume remove -name $volume
        done

        maprcli node move -serverids $NODEID -topology /decomissioned
        # Poll here for complete volume re-replication

        sudo service mapr-warden stop
        while :; do
                HEARTBEAT_ALARMS=$(maprcli alarm list -entity `hostname -f` -type node -noheader | grep NODE_ALARM_NO_HEARTBEAT | wc -l)
                if [ $HEARTBEAT_ALARMS == 1 ]; then
                        maprcli node remove -nodes `hostname -f`
                        break
                fi
                sleep 20
        done
fi