Skip to content

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.
MetricMeaning
RateSpan rate over time. In the Traces tab, this is the trace count per time bucket.
ErrorsCount or rate of error spans over time.
DurationAggregated latency over time. Default aggregation is Avg. Available aggregations: Avg, Min, Max, Median, p75, p90, p99.

Red metrics tab

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.
TabWhat you see
RED metricsRate, Errors, and Duration rendered as three charts side by side. Each chart has its own configuration.
Hybrid viewA 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.

Hybrid view

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:
SettingOptions
VisualisationVertical bar, Line chart, or Area chart. Line chart is the default.
ScaleLinear (default) or Logarithmic.
Time bucketAuto, 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.
ActionWhat it does
Filter raw spansOpens the Spans tab filtered to the selected value, so you can inspect the underlying spans.
Drilldown spansOpens 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 queryAdds the selected value as an include filter.
Exclude from queryAdds the selected value as an exclude filter.
Copy valueCopies the selected value.
Copy keyCopies the field name for the selected data point.
Copy queryCopies 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:
AggregationSpan selectedBest for
Min DurationFastest spanOptimizations and baselines.
Max DurationSlowest spanDebugging slowness.
Average DurationSpan closest to the meanUnderstanding normal flow.
P9999th percentile spanTail latency, SLA breaches.
P9595th percentile spanCommon SLA targets.
P50Median spanRepresentative sample.
CountFirst span from the API responseQuick exploration.
Error CountFirst error span from the API responseError investigation.

Per-graph actions

Each chart header has icons for graph-level controls:
ActionWhere to find itWhat it does
Focus / Exit focusExpand arrow on the chart headerExpands a single graph and hides the others. Select the icon again to return to the side-by-side layout.
Copy Graph imageKebab menu () on the chart headerCopies the current graph as an image to the clipboard.
Export Graph as PNGKebab menu () on the chart headerDownloads 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.
SettingOptions
Legend positionSide (default), Bottom, Hide.
Legend columnsAny 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.