{
  "dashboard": {
    "id": null,
    "uid": "stellaops-hlc-metrics",
    "title": "StellaOps HLC Queue Metrics",
    "description": "Hybrid Logical Clock ordering metrics for the Scheduler queue",
    "tags": ["stellaops", "hlc", "scheduler", "audit"],
    "timezone": "utc",
    "schemaVersion": 39,
    "version": 1,
    "refresh": "30s",
    "time": {
      "from": "now-1h",
      "to": "now"
    },
    "panels": [
      {
        "id": 1,
        "title": "HLC Tick Rate",
        "description": "Rate of HLC tick operations per second",
        "type": "timeseries",
        "gridPos": { "h": 8, "w": 12, "x": 0, "y": 0 },
        "fieldConfig": {
          "defaults": {
            "unit": "ops",
            "custom": { "drawStyle": "line", "lineInterpolation": "smooth" }
          }
        },
        "targets": [
          {
            "expr": "rate(hlc_ticks_total[1m])",
            "legendFormat": "{{node_id}}",
            "refId": "A"
          }
        ]
      },
      {
        "id": 2,
        "title": "Clock Skew Rejections",
        "description": "HLC rejections due to clock skew exceeding tolerance",
        "type": "stat",
        "gridPos": { "h": 4, "w": 6, "x": 12, "y": 0 },
        "fieldConfig": {
          "defaults": {
            "unit": "short",
            "thresholds": {
              "mode": "absolute",
              "steps": [
                { "color": "green", "value": null },
                { "color": "yellow", "value": 1 },
                { "color": "red", "value": 10 }
              ]
            }
          }
        },
        "targets": [
          {
            "expr": "sum(increase(hlc_clock_skew_rejections_total[1h]))",
            "refId": "A"
          }
        ]
      },
      {
        "id": 3,
        "title": "Physical Time Offset",
        "description": "Difference between HLC physical time and wall clock",
        "type": "gauge",
        "gridPos": { "h": 4, "w": 6, "x": 18, "y": 0 },
        "fieldConfig": {
          "defaults": {
            "unit": "ms",
            "thresholds": {
              "mode": "absolute",
              "steps": [
                { "color": "green", "value": null },
                { "color": "yellow", "value": 100 },
                { "color": "red", "value": 1000 }
              ]
            },
            "max": 5000
          }
        },
        "targets": [
          {
            "expr": "max(hlc_physical_time_offset_seconds) * 1000",
            "refId": "A"
          }
        ]
      },
      {
        "id": 4,
        "title": "Scheduler HLC Enqueues",
        "description": "Rate of jobs enqueued with HLC timestamps",
        "type": "timeseries",
        "gridPos": { "h": 8, "w": 12, "x": 12, "y": 4 },
        "fieldConfig": {
          "defaults": {
            "unit": "ops",
            "custom": { "drawStyle": "bars", "fillOpacity": 50 }
          }
        },
        "targets": [
          {
            "expr": "rate(scheduler_hlc_enqueues_total[5m])",
            "legendFormat": "{{tenant_id}}",
            "refId": "A"
          }
        ]
      },
      {
        "id": 5,
        "title": "Chain Verifications",
        "description": "Chain verification operations by result",
        "type": "timeseries",
        "gridPos": { "h": 8, "w": 12, "x": 0, "y": 8 },
        "fieldConfig": {
          "defaults": {
            "unit": "ops"
          },
          "overrides": [
            {
              "matcher": { "id": "byName", "options": "valid" },
              "properties": [{ "id": "color", "value": { "fixedColor": "green", "mode": "fixed" } }]
            },
            {
              "matcher": { "id": "byName", "options": "invalid" },
              "properties": [{ "id": "color", "value": { "fixedColor": "red", "mode": "fixed" } }]
            }
          ]
        },
        "targets": [
          {
            "expr": "rate(scheduler_chain_verifications_total[5m])",
            "legendFormat": "{{result}}",
            "refId": "A"
          }
        ]
      },
      {
        "id": 6,
        "title": "Verification Failures",
        "description": "Chain verification failures - indicates tampering or corruption",
        "type": "stat",
        "gridPos": { "h": 4, "w": 6, "x": 12, "y": 8 },
        "fieldConfig": {
          "defaults": {
            "unit": "short",
            "thresholds": {
              "mode": "absolute",
              "steps": [
                { "color": "green", "value": null },
                { "color": "red", "value": 1 }
              ]
            }
          }
        },
        "targets": [
          {
            "expr": "sum(increase(scheduler_chain_verification_failures_total[1h]))",
            "refId": "A"
          }
        ]
      },
      {
        "id": 7,
        "title": "Batch Snapshots",
        "description": "Batch snapshot creation rate",
        "type": "stat",
        "gridPos": { "h": 4, "w": 6, "x": 18, "y": 8 },
        "fieldConfig": {
          "defaults": {
            "unit": "short"
          }
        },
        "targets": [
          {
            "expr": "sum(increase(scheduler_batch_snapshots_total[1h]))",
            "refId": "A"
          }
        ]
      },
      {
        "id": 8,
        "title": "Air-Gap Bundle Exports",
        "description": "Rate of air-gap bundles exported",
        "type": "timeseries",
        "gridPos": { "h": 8, "w": 8, "x": 0, "y": 16 },
        "fieldConfig": {
          "defaults": {
            "unit": "ops"
          }
        },
        "targets": [
          {
            "expr": "rate(airgap_bundles_exported_total[5m])",
            "legendFormat": "{{node_id}}",
            "refId": "A"
          }
        ]
      },
      {
        "id": 9,
        "title": "Air-Gap Bundle Imports",
        "description": "Rate of air-gap bundles imported",
        "type": "timeseries",
        "gridPos": { "h": 8, "w": 8, "x": 8, "y": 16 },
        "fieldConfig": {
          "defaults": {
            "unit": "ops"
          }
        },
        "targets": [
          {
            "expr": "rate(airgap_bundles_imported_total[5m])",
            "legendFormat": "imported",
            "refId": "A"
          }
        ]
      },
      {
        "id": 10,
        "title": "Air-Gap Merge Conflicts",
        "description": "Merge conflicts by type during air-gap sync",
        "type": "stat",
        "gridPos": { "h": 4, "w": 8, "x": 16, "y": 16 },
        "fieldConfig": {
          "defaults": {
            "unit": "short",
            "thresholds": {
              "mode": "absolute",
              "steps": [
                { "color": "green", "value": null },
                { "color": "yellow", "value": 1 },
                { "color": "red", "value": 10 }
              ]
            }
          }
        },
        "targets": [
          {
            "expr": "sum by (conflict_type) (increase(airgap_merge_conflicts_total[1h]))",
            "legendFormat": "{{conflict_type}}",
            "refId": "A"
          }
        ]
      },
      {
        "id": 11,
        "title": "Sync Duration",
        "description": "Air-gap sync operation duration percentiles",
        "type": "timeseries",
        "gridPos": { "h": 8, "w": 8, "x": 16, "y": 20 },
        "fieldConfig": {
          "defaults": {
            "unit": "s"
          }
        },
        "targets": [
          {
            "expr": "histogram_quantile(0.50, sum(rate(airgap_sync_duration_seconds_bucket[5m])) by (le))",
            "legendFormat": "p50",
            "refId": "A"
          },
          {
            "expr": "histogram_quantile(0.95, sum(rate(airgap_sync_duration_seconds_bucket[5m])) by (le))",
            "legendFormat": "p95",
            "refId": "B"
          },
          {
            "expr": "histogram_quantile(0.99, sum(rate(airgap_sync_duration_seconds_bucket[5m])) by (le))",
            "legendFormat": "p99",
            "refId": "C"
          }
        ]
      }
    ],
    "annotations": {
      "list": [
        {
          "name": "Deployments",
          "datasource": "-- Grafana --",
          "enable": true,
          "iconColor": "blue"
        }
      ]
    }
  },
  "folderId": 0,
  "overwrite": true
}