PUT /my_index/servermetrics/1
{
  "server": "AWS-East-1",
  "hostname":  "python-server-1",
  "hostname":  [ "cash", "shares" ],
  "metrics": [
    {
      "name":    "John Smith",
      "url": "/users/6866",
      "responsetime":     28,
      "ts":    "1480779810881"
    },
    {
      "url": "/comments",
      "responsetime":     31,
      "ts":    "1480607028991"
    }
  ]
}