Metrics

There are 9 metrics that can be exported in OpenMetrics format. Metrics are enabled by providing metric-server-port option and exported to localhost:metric-server-port/metrics endpoint.

Events exported

Name: bombini_user_events_exported_total
Type: counter
Unit: number of events
Description: The total number of events exported by Bombini.

Errors in user space

Name: bombini_user_events_lost_total
Type: counter
Unit: number of events
Description: The total number of events lost in user space.

Errors in eBPF

Name: bombini_bpf_events_lost_total
Type: counter
Unit: number of events
Description: The total number of events lost in eBPF.

Events lost in eBPF

Name: bombini_bpf_events_ringbuf_lost_total
Type: counter
Unit: number of events
Description: The total number of events lost in eBPF due to ring buffer overflow.

The metrics below are exported only when Kubernetes pod enrichment is enabled.

Pod index size

Name: bombini_k8s_pod_index_size
Type: gauge
Unit: number of containers
Description: The number of containers known to the pod index.

Pod watch errors

Name: bombini_k8s_watch_errors_total
Type: counter
Unit: number of failures
Description: The total number of pod watch failures. Each one restarts the watch stream with a backoff.

Enriched processes

Name: bombini_k8s_enrich_hit_total
Type: counter
Unit: number of processes
Description: The total number of processes enriched with pod info.

Unresolved processes

Name: bombini_k8s_enrich_miss_total
Type: counter
Unit: number of processes
Description: The total number of containerized processes whose pod was not in the index. Right after start it grows until the initial pod list arrives.

Deferred resolutions

Name: bombini_k8s_deferred_resolved_total
Type: counter
Unit: number of processes
Description: The total number of processes enriched later, when their container id appeared in the index.