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consensus total per round time panel added

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Signed-off-by: Pratik Mankawde <3397372+pratikmankawde@users.noreply.github.com>
This commit is contained in:
Pratik Mankawde
2026-05-27 14:54:36 +01:00
parent 0330d037ef
commit ce04dac32e
1 changed files with 30 additions and 39 deletions
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69
docker/telemetry/grafana/dashboards/consensus-health.json
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@@ -657,7 +657,7 @@
},
{
"title": "Ledger Total Processing Time (Round Open -> Next Round Start)",
"description": "Per-node duration of the consensus.round span — covers the full local round (open phase, establish/proposal exchange, accept request) and ends only when the next round's startRoundTracing() resets it. Spans multiple consensus retries when MovedOn or Expired forces another round before a ledger is fully accepted. Series: Total = every consensus.round; Accepted Apply = consensus.accept.apply with consensus_state=finished (apply-phase duration only, plotted as a marker for accepted ledgers); Rejected Apply = consensus.accept.apply with consensus_state in (moved_on, expired). NOTE: accept.apply and consensus.round currently land in separate Tempo traces (jtACCEPT thread context propagation), so descendant joins return empty — queries are kept single-span.",
"description": "p95/p50 duration of the consensus.round span (full local round: open + establish + accept request) sourced from spanmetrics histograms — values are stable across refreshes because Prometheus rate() over a fixed time window is deterministic, unlike TraceQL search which pages through traces. Accepted vs Rejected apply rates derived from consensus.accept.apply spanmetrics partitioned by consensus_state (finished | moved_on | expired). Note: histogram bucket ceiling is currently 5s (otel-collector-config.yaml spanmetrics histogram.explicit.buckets) — durations longer than 5s land in the +Inf bucket and inflate p95.",
"type": "timeseries",
"gridPos": {
"h": 8,
@@ -669,33 +669,15 @@
"defaults": {
"unit": "ms",
"custom": {
"drawStyle": "points",
"pointSize": 6,
"showPoints": "always",
"axisLabel": "Total Processing Time (ms)",
"spanNulls": false
"drawStyle": "line",
"lineInterpolation": "linear",
"pointSize": 4,
"showPoints": "auto",
"axisLabel": "Duration (ms)",
"spanNulls": true
}
},
"overrides": [
{
"matcher": {
"id": "byFrameRefID",
"options": "A"
},
"properties": [
{
"id": "displayName",
"value": "Round Total"
},
{
"id": "color",
"value": {
"mode": "fixed",
"fixedColor": "blue"
}
}
]
},
{
"matcher": {
"id": "byFrameRefID",
@@ -704,7 +686,7 @@
"properties": [
{
"id": "displayName",
"value": "Accepted (apply)"
"value": "Accepted apply p95"
},
{
"id": "color",
@@ -723,7 +705,7 @@
"properties": [
{
"id": "displayName",
"value": "Rejected (apply)"
"value": "Rejected apply p95"
},
{
"id": "color",
@@ -750,29 +732,38 @@
"targets": [
{
"datasource": {
"type": "tempo",
"uid": "tempo"
"type": "prometheus",
"uid": "prometheus"
},
"queryType": "traceql",
"query": "{ resource.service.instance.id=~\"$node\" && name=\"consensus.round\" } | select(span:duration)",
"expr": "histogram_quantile(0.95, sum by (le, exported_instance) (rate(traces_span_metrics_duration_milliseconds_bucket{exported_instance=~\"$node\", span_name=\"consensus.round\"}[5m])))",
"legendFormat": "Round Total p95 [{{exported_instance}}]",
"refId": "A"
},
{
"datasource": {
"type": "tempo",
"uid": "tempo"
"type": "prometheus",
"uid": "prometheus"
},
"queryType": "traceql",
"query": "{ resource.service.instance.id=~\"$node\" && name=\"consensus.accept.apply\" && span.consensus_state=\"finished\" } | select(span:duration)",
"expr": "histogram_quantile(0.50, sum by (le, exported_instance) (rate(traces_span_metrics_duration_milliseconds_bucket{exported_instance=~\"$node\", span_name=\"consensus.round\"}[5m])))",
"legendFormat": "Round Total p50 [{{exported_instance}}]",
"refId": "D"
},
{
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "histogram_quantile(0.95, sum by (le, exported_instance) (rate(traces_span_metrics_duration_milliseconds_bucket{exported_instance=~\"$node\", span_name=\"consensus.accept.apply\", consensus_state=\"finished\"}[5m])))",
"legendFormat": "Accepted apply p95 [{{exported_instance}}]",
"refId": "B"
},
{
"datasource": {
"type": "tempo",
"uid": "tempo"
"type": "prometheus",
"uid": "prometheus"
},
"queryType": "traceql",
"query": "{ resource.service.instance.id=~\"$node\" && name=\"consensus.accept.apply\" && span.consensus_state!=\"finished\" } | select(span:duration)",
"expr": "histogram_quantile(0.95, sum by (le, exported_instance) (rate(traces_span_metrics_duration_milliseconds_bucket{exported_instance=~\"$node\", span_name=\"consensus.accept.apply\", consensus_state=~\"moved_on|expired\"}[5m])))",
"legendFormat": "Rejected apply p95 [{{exported_instance}}]",
"refId": "C"
}
]