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Logs & live tail
Monitor → Logs shows every log line from your agents and your OpenTelemetry apps.
Search and filter
- Time range: 15 minutes, 1 hour, 4 hours, 24 hours or 7 days.
- Search: type text to find messages that contain it. The search ignores case and matches anywhere in the message.
- Side facets: Status, Service and Host, each with a count per value. Select several values in a facet to match any of them; selections in different facets must all match.
- Status buttons above the list give quick filters for critical, error, warning, info and debug.
- Histogram: event volume over the selected range, colored by status. It's a fast way to spot spikes.
Click a row to expand it and see the full message, its file path and its tags. For logs from OpenTelemetry, a View trace → link opens the related trace.
Load older logs at the bottom of the list fetches the next page.
Live tail
Click Live tail to stream new lines as they arrive, using the filters you've set.
| Control | Action |
|---|---|
| Pause / Resume | Freezes the view so you can read; new lines are held back. |
| Clear | Empties the list. |
| Stop | Returns to normal search. |
Log fields
| Field | Source |
|---|---|
| Time | When the agent read the line, or the OTel record's timestamp |
| Status | critical, error, warning, info or debug. See Status. |
| Service | The name in the service file, or service.name for OTel |
| Host | The agent's hostname, or host.name for OTel |
| Path | The file the line came from |
| Tags | Host tags, service tags, and source:otel / env: for OTel |
| Message | The line, or the joined multiline event |
Retention
Logs are kept for 7 days by default, then deleted automatically. Your Logcore administrator can change this.