Werk #18744: OTel: Hosts monitored only via OpenTelemetry are incorrectly treated as ping hosts
| Component | Checks & agents | ||||
| Title | OTel: Hosts monitored only via OpenTelemetry are incorrectly treated as ping hosts | ||||
| Date | Mar 19, 2026 | ||||
| Level | Trivial Change | ||||
| Class | Bug Fix | ||||
| Compatibility | Compatible - no manual interaction needed | ||||
| Checkmk versions & editions |
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Hosts configured to receive OpenTelemetry data but lacking a Checkmk agent or SNMP were incorrectly classified as ping-only. This caused their services to show an UNKNOWN state instead of processing the incoming OpenTelemetry metrics, leading to confusion or missed alerts.
We now correctly recognize hosts with an OpenTelemetry metrics association as having a valid data source. This fix ensures these hosts display their OpenTelemetry metrics accurately, improving monitoring reliability. No user action is required to benefit from this update.