{
  "zk0" : {
    "role": "zk",
    "ip": "10.10.10.10",
    "config": {
      "type": "virtualbox",
      "cpus": 1,
      "mem": 256
    }
  },

  "master0" : {
    "role": "master",
    "ip": "10.10.20.10",
    "config": {
      "type": "virtualbox",
      "cpus": 1,
      "mem": 256
    }
  },

  "slave0" : {
    "role": "slave",
    "ip": "10.10.30.10",
    "config": {
      "type": "virtualbox",
      "cpus": 2,
      "mem": 512
    }
  },

  "slave1" : {
    "role": "slave",
    "ip": "10.10.30.11",
    "config": {
      "type": "virtualbox",
      "cpus": 2,
      "mem": 512
    }
  },

  "marathon" : {
    "role": "marathon",
    "ip": "10.10.40.10",
    "config": {
      "type": "virtualbox",
      "cpus": 1,
      "mem": 256
    }
  }
}

{
  "zk0" : {
    "role": "zk",
    "ip": "10.10.10.10",
    "config": {
      "type": "virtualbox",
      "cpus": 1,
      "mem": 256
    }
  },

  "master0" : {
    "role": "master",
    "ip": "10.10.20.10",
    "config": {
      "type": "virtualbox",
      "cpus": 1,
      "mem": 256
    }
  },

  "slave0" : {
    "role": "slave",
    "ip": "10.10.30.10",
    "config": {
      "type": "virtualbox",
      "cpus": 2,
      "mem": 512
    }
  },

  "slave1" : {
    "role": "slave",
    "ip": "10.10.30.11",
    "config": {
      "type": "virtualbox",
      "cpus": 2,
      "mem": 1024
    }
  },

  "marathon" : {
    "role": "marathon",
    "ip": "10.10.40.10",
    "config": {
      "type": "virtualbox",
      "cpus": 1,
      "mem": 256
    }
  }
}

Add more juice to slaves
Add more juice to slaves
