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git.stella-ops.org/ops/devops/observability/grafana/signals-pipeline.json
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{
"schemaVersion": 39,
"title": "Signals Pipeline",
"panels": [
{
"type": "stat",
"title": "Scoring p95 (s)",
"datasource": "Prometheus",
"fieldConfig": {"defaults": {"unit": "s", "decimals": 2}},
"targets": [
{"expr": "histogram_quantile(0.95, sum(rate(signals_reachability_scoring_duration_seconds_bucket[5m])) by (le))"}
]
},
{
"type": "timeseries",
"title": "Scoring Duration p95/p50",
"datasource": "Prometheus",
"fieldConfig": {"defaults": {"unit": "s", "decimals": 2}},
"targets": [
{"expr": "histogram_quantile(0.95, sum(rate(signals_reachability_scoring_duration_seconds_bucket[5m])) by (le))", "legendFormat": "p95"},
{"expr": "histogram_quantile(0.50, sum(rate(signals_reachability_scoring_duration_seconds_bucket[5m])) by (le))", "legendFormat": "p50"}
]
},
{
"type": "gauge",
"title": "Cache Hit Ratio (5m)",
"datasource": "Prometheus",
"fieldConfig": {"defaults": {"unit": "percent", "min": 0, "max": 100}},
"options": {"reduceOptions": {"calcs": ["last"]}, "orientation": "horizontal"},
"targets": [
{"expr": "100 * clamp_min(rate(signals_cache_hits_total[5m]),0) / clamp_min(rate(signals_cache_hits_total[5m]) + rate(signals_cache_misses_total[5m]), 1)"}
]
},
{
"type": "timeseries",
"title": "Cache Hits/Misses",
"datasource": "Prometheus",
"fieldConfig": {"defaults": {"unit": "1/s"}},
"targets": [
{"expr": "rate(signals_cache_hits_total[5m])", "legendFormat": "hits"},
{"expr": "rate(signals_cache_misses_total[5m])", "legendFormat": "misses"}
]
},
{
"type": "stat",
"title": "Sensors Reporting",
"datasource": "Prometheus",
"fieldConfig": {"defaults": {"unit": "none"}},
"targets": [
{"expr": "count(max_over_time(signals_sensor_last_seen_timestamp_seconds[15m]))"}
]
},
{
"type": "timeseries",
"title": "Sensor Staleness",
"datasource": "Prometheus",
"fieldConfig": {"defaults": {"unit": "s"}},
"targets": [
{"expr": "time() - max(signals_sensor_last_seen_timestamp_seconds) by (sensor)", "legendFormat": "{{sensor}}"}
]
},
{
"type": "barchart",
"title": "Ingestion Outcomes",
"datasource": "Prometheus",
"fieldConfig": {"defaults": {"unit": "1/s"}},
"options": {"displayMode": "series"},
"targets": [
{"expr": "rate(signals_ingestion_total[5m])", "legendFormat": "total"},
{"expr": "rate(signals_ingestion_failures_total[5m])", "legendFormat": "failures"}
]
}
]
}