[Bug]: Grafana Dashboard 15918 Namespace variable query is broken

Author: victoriacheng15Created Aug 27, 2026Updated Sep 15, 2026

Labelstype/bug

Chaos Mesh Version

v2.8.4

Kubernetes Version

v1.36

Describe the bug

As reported in Discussion #4824, the official Grafana Dashboard 15918 ("Chaos Mesh Overview") is broken out-of-the-box because its Namespace variable query points to a metric without any labels: label_values(chaos_mesh_templates, namespace)

This causes the Namespace dropdown to remain empty ("None"), making it impossible to select a namespace or view dashboard panels.

Suggested Fix: Update the Namespace variable query in the dashboard template on Grafana Labs to a combined query that is backward-compatible with both 1.x and 2.x and supports both static and service-discovery targets:

prometheus

label_values({__name__=~"up|chaos_controller_manager_chaos_experiments|chaos_mesh_experiments"}, namespace)

To Reproduce

Install Chaos Mesh on a cluster.
Import Grafana Dashboard 15918.
Observe that the Namespace dropdown has no options.

Note: The attached dashboard JSON has been verified working locally.

Fixed Dashboard JSON

json

{
  "__inputs": [
    {
      "name": "DS_PROMETHEUS",
      "label": "Prometheus",
      "description": "",
      "type": "datasource",
      "pluginId": "prometheus",
      "pluginName": "Prometheus"
    }
  ],
  "__elements": [],
  "__requires": [
    {
      "type": "grafana",
      "id": "grafana",
      "name": "Grafana",
      "version": "8.4.3"
    },
    {
      "type": "panel",
      "id": "piechart",
      "name": "Pie chart",
      "version": ""
    },
    {
      "type": "datasource",
      "id": "prometheus",
      "name": "Prometheus",
      "version": "1.0.0"
    },
    {
      "type": "panel",
      "id": "stat",
      "name": "Stat",
      "version": ""
    },
    {
      "type": "panel",
      "id": "timeseries",
      "name": "Time series",
      "version": ""
    }
  ],
  "annotations": {
    "list": [
      {
        "builtIn": 1,
        "datasource": "-- Grafana --",
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",
        "target": {
          "limit": 100,
          "matchAny": false,
          "tags": [],
          "type": "dashboard"
        },
        "type": "dashboard"
      }
    ]
  },
  "description": "Overview for monitoring Chaos Mesh. \r\n\r\nProviding active chaos experiments, instances of each components, and experiments activity events. ",
  "editable": true,
  "fiscalYearStartMonth": 0,
  "graphTooltip": 0,
  "id": null,
  "iteration": 1647423145146,
  "links": [],
  "liveNow": false,
  "panels": [
    {
      "collapsed": false,
      "gridPos": {
        "h": 1,
        "w": 24,
        "x": 0,
        "y": 0
      },
      "id": 8,
      "panels": [],
      "title": "Chaos Experiments",
      "type": "row"
    },
    {
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 8,
        "w": 6,
        "x": 0,
        "y": 1
      },
      "id": 10,
      "options": {
        "colorMode": "none",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "8.4.3",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "Prometheus"
          },
          "exemplar": true,
          "expr": "sum(chaos_controller_manager_chaos_experiments{namespace=\"$Namespace\", pod=\"$ControllerManager\"})",
          "interval": "",
          "legendFormat": "Active",
          "refId": "A"
        }
      ],
      "title": "Experiments",
      "type": "stat"
    },
    {
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 8,
        "w": 6,
        "x": 6,
        "y": 1
      },
      "id": 14,
      "options": {
        "colorMode": "none",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "8.4.3",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "Prometheus"
          },
          "exemplar": true,
          "expr": "sum(chaos_controller_manager_chaos_schedules{namespace=\"$Namespace\", pod=\"$ControllerManager\"})",
          "interval": "",
          "legendFormat": "Workflow",
          "refId": "A"
        }
      ],
      "title": "Schedules",
      "type": "stat"
    },
    {
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 8,
        "w": 6,
        "x": 12,
        "y": 1
      },
      "id": 19,
      "options": {
        "colorMode": "none",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "8.4.3",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "Prometheus"
          },
          "exemplar": true,
          "expr": "sum(chaos_controller_manager_chaos_workflows{namespace=\"$Namespace\", pod=\"$ControllerManager\"})",
          "interval": "",
          "legendFormat": "Workflow",
          "refId": "A"
        }
      ],
      "title": "Workflows",
      "type": "stat"
    },
    {
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },
          "custom": {
            "hideFrom": {
              "legend": false,
              "tooltip": false,
              "viz": false
            }
          },
          "mappings": []
        },
        "overrides": []
      },
      "gridPos": {
        "h": 8,
        "w": 6,
        "x": 18,
        "y": 1
      },
      "id": 12,
      "options": {
        "legend": {
          "displayMode": "list",
          "placement": "bottom"
        },
        "pieType": "pie",
        "reduceOptions": {
          "calcs": [
            "last"
          ],
          "fields": "",
          "values": false
        },
        "tooltip": {
          "mode": "single",
          "sort": "none"
        }
      },
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "Prometheus"
          },
          "exemplar": true,
          "expr": "sum by (kind)(chaos_controller_manager_chaos_experiments{namespace=\"$Namespace\", pod=\"$ControllerManager\"})",
          "interval": "",
          "legendFormat": "{{kind}}",
          "refId": "A"
        }
      ],
      "title": "Experiments Types",
      "type": "piechart"
    },
    {
      "collapsed": false,
      "gridPos": {
        "h": 1,
        "w": 24,
        "x": 0,
        "y": 9
      },
      "id": 18,
      "panels": [],
      "title": "Chaos Mesh Activities",
      "type": "row"
    },
    {
      "description": "",
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },
          "custom": {
            "axisLabel": "",
            "axisPlacement": "auto",
            "barAlignment": 0,
            "drawStyle": "line",
            "fillOpacity": 0,
            "gradientMode": "none",
            "hideFrom": {
              "legend": false,
              "tooltip": false,
              "viz": false
            },
            "lineInterpolation": "linear",
            "lineWidth": 1,
            "pointSize": 5,
            "scaleDistribution": {
              "type": "linear"
            },
            "showPoints": "auto",
            "spanNulls": false,
            "stacking": {
              "group": "A",
              "mode": "normal"
            },
            "thresholdsStyle": {
              "mode": "off"
            }
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "red",
                "value": 80
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 10,
        "w": 24,
        "x": 0,
        "y": 10
      },
      "id": 16,
      "options": {
        "legend": {
          "calcs": [],
          "displayMode": "list",
          "placement": "bottom"
        },
        "tooltip": {
          "mode": "single",
          "sort": "none"
        }
      },
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "Prometheus"
          },
          "exemplar": true,
          "expr": "delta(chaos_controller_manager_emitted_event_total{namespace=\"$Namespace\",pod=\"$ControllerManager\"}[$__rate_interval])",
          "interval": "",
          "legendFormat": "{{reason}}",
          "refId": "A"
        }
      ],
      "title": "Experiments Events",
      "type": "timeseries"
    },
    {
      "collapsed": false,
      "gridPos": {
        "h": 1,
        "w": 24,
        "x": 0,
        "y": 20
      },
      "id": 6,
      "panels": [],
      "title": "Chaos Mesh Overview",
      "type": "row"
    },
    {
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 3,
        "x": 0,
        "y": 21
      },
      "id": 2,
      "options": {
        "colorMode": "none",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "8.4.3",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "Prometheus"
          },
          "exemplar": true,
          "expr": "count(up{namespace=\"$Namespace\", service=\"chaos-mesh-controller-manager\"})",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "title": "Controller Manager Instances",
      "type": "stat"
    },
    {
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 3,
        "x": 3,
        "y": 21
      },
      "id": 3,
      "options": {
        "colorMode": "none",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "8.4.3",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "Prometheus"
          },
          "exemplar": true,
          "expr": "count(up{namespace=\"$Namespace\", service=\"chaos-daemon\"})",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "title": "Chaos Daemon Instances",
      "type": "stat"
    },
    {
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "thresholds"
          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          }
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 3,
        "x": 6,
        "y": 21
      },
      "id": 4,
      "options": {
        "colorMode": "none",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "fields": "",
          "values": false
        },
        "textMode": "auto"
      },
      "pluginVersion": "8.4.3",
      "targets": [
        {
          "datasource": {
            "type": "prometheus",
            "uid": "Prometheus"
          },
          "exemplar": true,
          "expr": "count(up{namespace=\"$Namespace\", service=\"chaos-dashboard\"})",
          "interval": "",
          "legendFormat": "",
          "refId": "A"
        }
      ],
      "title": "Chaos Dashboard Instances",
      "type": "stat"
    }
  ],
  "refresh": "30s",
  "schemaVersion": 35,
  "style": "dark",
  "tags": [],
  "templating": {
    "list": [
      {
        "current": {},
        "definition": "label_values({__name__=~\"up|chaos_controller_manager_chaos_experiments|chaos_mesh_experiments\"}, namespace)",
        "hide": 0,
        "includeAll": false,
        "label": "Chaos Mesh Namespace",
        "multi": false,
        "name": "Namespace",
        "options": [],
        "query": {
          "query": "label_values({__name__=~\"up|chaos_controller_manager_chaos_experiments|chaos_mesh_experiments\"}, namespace)",
          "refId": "StandardVariableQuery"
        },
        "refresh": 2,
        "regex": "",
        "skipUrlSync": false,
        "sort": 0,
        "type": "query",
        "datasource": "${DS_PROMETHEUS}"
      },
      {
        "current": {},
        "definition": "label_values(up{namespace=\"$Namespace\", service=\"chaos-mesh-controller-manager\"}, pod)",
        "hide": 0,
        "includeAll": false,
        "label": "Controller Manager",
        "multi": false,
        "name": "ControllerManager",
        "options": [],
        "query": {
          "query": "label_values(up{namespace=\"$Namespace\", service=\"chaos-mesh-controller-manager\"}, pod)",
          "refId": "StandardVariableQuery"
        },
        "refresh": 2,
        "regex": "",
        "skipUrlSync": false,
        "sort": 0,
        "type": "query",
        "datasource": "${DS_PROMETHEUS}"
      }
    ]
  },
  "time": {
    "from": "now-1h",
    "to": "now"
  },
  "timepicker": {},
  "timezone": "",
  "title": "Chaos Mesh Overview",
  "uid": "LudtvvPnk",
  "version": 52,
  "weekStart": "",
  "gnetId": 15918
}

Source: chaos-mesh/chaos-mesh

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