ConstructionCost/pm2.json

{
  "apps": {
      "name": "constructioncost",
      "script": "server.js",
      "output": "/home/logs/out.log",
      "error": "/home/logs/err.log",
      "exec_mode": "cluster_mode",                
      "instances": 3, 
      "merge_logs": true
    }
}