Grafana InfluxDB 'found USER'

grafana dashboard

{
  "id": 1,
  "title": "New dashboard",
  "originalTitle": "New dashboard",
  "tags": [],
  "style": "dark",
  "timezone": "browser",
  "editable": true,
  "hideControls": false,
  "sharedCrosshair": false,
  "rows": [
    {
      "collapse": false,
      "editable": true,
      "height": "250px",
      "panels": [
        {
          "aliasColors": {},
          "bars": false,
          "datasource": null,
          "editable": true,
          "error": false,
          "fill": 1,
          "grid": {
            "leftLogBase": 1,
            "leftMax": null,
            "leftMin": null,
            "rightLogBase": 1,
            "rightMax": null,
            "rightMin": null,
            "threshold1": null,
            "threshold1Color": "rgba(216, 200, 27, 0.27)",
            "threshold2": null,
            "threshold2Color": "rgba(234, 112, 112, 0.22)"
          },
          "id": 1,
          "legend": {
            "avg": false,
            "current": false,
            "max": false,
            "min": false,
            "show": true,
            "total": false,
            "values": false
          },
          "lines": true,
          "linewidth": 2,
          "links": [],
          "nullPointMode": "connected",
          "percentage": false,
          "pointradius": 5,
          "points": false,
          "renderer": "flot",
          "seriesOverrides": [],
          "span": 12,
          "stack": false,
          "steppedLine": false,
          "targets": [
            {
              "fields": [
                {
                  "func": "mean",
                  "name": "system"
                },
                {
                  "func": "mean",
                  "name": "iowait"
                },
                {
                  "func": "mean",
                  "name": "idle"
                },
                {
                  "func": "mean",
                  "name": "user"
                }
              ],
              "groupByTags": [
                "host"
              ],
              "measurement": "cpu",
              "query": "SELECT mean(system), mean(iowait), mean(idle), mean(user) FROM \"cpu\" WHERE \"host\" =~ /sensu*/ AND $timeFilter GROUP BY time($interval), \"host\"",
              "tags": [
                {
                  "key": "host",
                  "operator": "=~",
                  "value": "/sensu*/"
                }
              ]
            }
          ],
          "timeFrom": null,
          "timeShift": null,
          "title": "CPU Load",
          "tooltip": {
            "shared": true,
            "value_type": "cumulative"
          },
          "type": "graph",
          "x-axis": true,
          "y-axis": true,
          "y_formats": [
            "short",
            "short"
          ]
        }
      ],
      "title": "Row"
    }
  ],
  "nav": [
    {
      "collapse": false,
      "enable": true,
      "notice": false,
      "now": true,
      "refresh_intervals": [
        "5s",
        "10s",
        "30s",
        "1m",
        "5m",
        "15m",
        "30m",
        "1h",
        "2h",
        "1d"
      ],
      "status": "Stable",
      "time_options": [
        "5m",
        "15m",
        "1h",
        "6h",
        "12h",
        "24h",
        "2d",
        "7d",
        "30d"
      ],
      "type": "timepicker"
    }
  ],
  "time": {
    "from": "now-6h",
    "to": "now"
  },
  "templating": {
    "list": []
  },
  "annotations": {
    "list": []
  },
  "schemaVersion": 6,
  "version": 0,
  "links": []
}

influxdb logs

[http] 2015/10/20 17:24:23 127.0.0.1 - admin [20/Oct/2015:17:24:23 +0100] GET /query?db=graphite&epoch=ms&q=SELECT+mean%28system%29%2C+mean%28iowait%29%2C+mean%28idle%29%2C+mean%28user%29+FROM+%22cpu%22+WHERE+%22host%22+%3D~+%2Fsensu%2A%2F+AND+time+%3E+now%28%29+-+6h+GROUP+BY+time%2810s%29%2C+%22host%22 HTTP/1.1 400 119 http://sensu.lt0772.local:3001/dashboard/db/new-dashboard Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36 0663616e-7747-11e5-8053-000000000000 584.602µs

metrics

> select * from cpu limit 1
name: cpu
---------
time                    guest   host    idle    iowait  irq     nice    softirq steal   system  user
1445349415000000000     0       sensu   100     0       0       0       0       0       0       0