• Java
• Scala 2.11
• Maven
• Git
• Spark 2.1
• Hadoop 2.7.2
• Openvpn and vpn certificates

Given a cluster composed by one master and a number of slaves, this procedure will deploy Spark and HDFS masters on the master machine and corrisponding workers and datanodes on the slave machines.

####Step 1 @[everywhere]

export VPN_HOME=<folder with vpn certificates>
export SPARK_HOME=<Spark folder>
export HADOOP_HOME=<Hadoop folder>
export SPARK_MASTER=<IP address of Spark master>

####Step 2 @[master machine]

./stop_spark_all.sh
./stop_hdfs_all_via_vpn.sh
sudo service openvpn restart

####Step 3 @[slave machines]

./stop_vpn.sh
./start_vpn.sh

####Step 4 @[everywhere]

./format_hdfs.sh

####Step 5 @[master machine]

./start_hdfs_all_via_vpn.sh
./start_spark_all.sh

####Step 6 @[slave machine]

./start_spark_slave.sh