RED metrics and Hybrid view
The RED metrics and Hybrid view tabs give you a live view of Rate, Errors, and Duration—the RED signals—alongside your query results. The RED metrics tab shows them as three charts side by side; the Hybrid view tab overlays them on a single chart. Reshape any graph with its own configuration, or click through a data point to drill into the spans behind the trend.
Use RED metrics to spot trends before drilling into individual spans—a spike in errors or a latency shift is often visible in the graphs before it's reported as an incident.
RED metrics
The RED graphs render from the active query and time range and stay in sync with the query builder—grouping and aggregation changes in the builder apply to all three graphs at once.
| Metric | Meaning |
|---|---|
| Rate | Span rate over time. In the Traces tab, this is the trace count per time bucket. |
| Errors | Count or rate of error spans over time. |
| Duration | Aggregated latency over time. Default aggregation is Avg. Available aggregations: Avg, Min, Max, Median, p75, p90, p99. |
Tabs
RED metrics appear in two dedicated tabs in the query results panel, alongside Overview, Spans, Traces, and Flows. The shared chart above the tab strip stays visible and is unchanged by the active tab.
| Tab | What you see |
|---|---|
| RED metrics | Rate, Errors, and Duration rendered as three charts side by side. Each chart has its own configuration. |
| Hybrid view | A single chart titled Spans Latency that overlays latency percentiles as lines, span count as bars, and individual span durations as dots colored by status. See Hybrid view for details. |
Hybrid view
The Hybrid view chart gives you a unified view of span performance across three signal types simultaneously.
What it shows
- Lines — latency trends over time. Four percentile series: P99.9 Latency (orange), P99 Latency (yellow), P95 Latency (cyan), and Avg Latency (blue).
- Dots — individual span samples plotted by duration. Green dots represent successful spans, red dots indicate error spans.
- Bars — span count per time bucket, scaled to the right Y-axis.
The legend at the bottom of the chart lists all active series: P99.9 Latency, P99 Latency, P95 Latency, Avg Latency, Error Count, and Spans. Select any series in the legend to toggle it on or off.
Y-axes
- Left axis — Duration on a logarithmic scale (
10μs → 10s). - Right axis — Count on a linear scale, tracking the Spans and Error Count series.
How to use it
- Hover any point to see exact latency values (P99.9, P99, P95, Avg) and error count for that timestamp.
- Select any data point to open the trace drilldown for that specific span — with full context and related data.
- Drag across a time window to zoom in and focus on a specific period.
- Toggle specific metrics on or off from the legend at the bottom of the chart.
Why use it
Instead of switching between separate graphs for latency, errors, and traffic, the Hybrid view surfaces all three signals in one place — making it immediately visible when error spikes correlate with latency regressions, without any manual cross-referencing.
Per-graph configuration
Group by and Aggregation are set at the query level using the chips at the top of Explore. They apply to all three RED graphs and to the Hybrid view chart at once.
Each graph also has its own configuration panel for how the data is rendered. Open the edit icon on a graph header to access:
| Setting | Options |
|---|---|
| Visualisation | Vertical bar, Line chart, or Area chart. Line chart is the default. |
| Scale | Linear (default) or Logarithmic. |
| Time bucket | Auto, or a custom interval. |
The Duration chart additionally exposes an aggregation switcher in its header — select between Average (default), Min, Max, Median, P75, P90, and P99 to change how span durations are aggregated.
Graph interactions
- Hover to see the grouped value, aggregated result, and selected time range in a tooltip.
- Drag across a time window to zoom all three graphs simultaneously. Zooming updates the time range picker, so the entire query reflects the new window.
- Scroll or pinch to zoom into a specific interval on a focused graph.
Graph action menu
Select any data point to open the graph action menu.
| Action | What it does |
|---|---|
| Filter raw spans | Opens the Spans tab filtered to the selected value, so you can inspect the underlying spans. |
| Drilldown spans | Opens the span drilldown on a representative span for the selected data point. Always available. The selected span follows the aggregation type—see Drilldown span selection. |
| Include in query | Adds the selected value as an include filter. |
| Exclude from query | Adds the selected value as an exclude filter. |
| Copy value | Copies the selected value. |
| Copy key | Copies the field name for the selected data point. |
| Copy query | Copies the full query used to generate the graph. Use this to replicate the graph query in DataPrime or share it with a teammate. |
Drilldown span selection
Drilldown spans is available from both the RED metrics and Hybrid view tabs, and from the custom chart that renders when a custom aggregation is active. When you click a data point, Coralogix selects the most representative span for that aggregation type, so the span you see in the drilldown is always contextually relevant to what you were analyzing. Selecting a data point opens the span drilldown with full context preserved:
- The drilldown respects the selected timeframe and the active Group by field or tag.
- It works across the Dependencies, Gantt, and Flame views—state is cached locally as you switch views, so you don't lose context.
- The drilldown auto-focuses on the first span within the selected timeframe and group, chosen by the graph's aggregation:
| Aggregation | Span selected | Best for |
|---|---|---|
| Min Duration | Fastest span | Optimizations and baselines. |
| Max Duration | Slowest span | Debugging slowness. |
| Average Duration | Span closest to the mean | Understanding normal flow. |
| P99 | 99th percentile span | Tail latency, SLA breaches. |
| P95 | 95th percentile span | Common SLA targets. |
| P50 | Median span | Representative sample. |
| Count | First span from the API response | Quick exploration. |
| Error Count | First error span from the API response | Error investigation. |
Per-graph actions
Each chart header has icons for graph-level controls:
| Action | Where to find it | What it does |
|---|---|---|
| Focus / Exit focus | Expand arrow on the chart header | Expands a single graph and hides the others. Select the icon again to return to the side-by-side layout. |
| Copy Graph image | Kebab menu (⋮) on the chart header | Copies the current graph as an image to the clipboard. |
| Export Graph as PNG | Kebab menu (⋮) on the chart header | Downloads the current graph as a PNG file. |
On the RED metrics tab, the kebab menu (⋮) appears only on the Duration chart. The Rate and Errors charts expose Focus and Graph configuration (pencil icon) only. On the Hybrid view chart, the kebab menu additionally includes Legend Settings — see Legend.
Legend
The legend shows the top series and their running metric values. From the more actions menu on any graph, choose Legend settings to change the layout.
| Setting | Options |
|---|---|
| Legend position | Side (default), Bottom, Hide. |
| Legend columns | Any combination of Last, Min, Max, Avg, Total. |
Right-click a legend value to Filter in, Filter out, or Copy value.
Next steps
Investigate a span or trace in depth with Span drilldown.

