Beyla exported metrics

The following table describes the exported metrics in both OpenTelemetry and Prometheus format.

Name (OTEL)	Name (Prometheus)	Type	Unit	Description
`http.client.request.duration`	`http_client_request_duration_seconds`	Histogram	seconds	Duration of HTTP service calls from the client side
`http.client.request.body.size`	`http_client_request_body_size_bytes`	Histogram	bytes	Size of the HTTP request body as sent by the client
`http.server.request.duration`	`http_server_request_duration_seconds`	Histogram	seconds	Duration of HTTP service calls from the server side
`http.server.request.body.size`	`http_server_request_body_size_bytes`	Histogram	bytes	Size of the HTTP request body as received at the server side
`rpc.client.duration`	`rpc_client_duration_seconds`	Histogram	seconds	Duration of GRPC service calls from the client side
`rpc.server.duration`	`rpc_server_duration_seconds`	Histogram	seconds	Duration of RPC service calls from the server side
`sql.client.duration`	`sql_client_duration_seconds`	Histogram	seconds	Duration of SQL client operations (Experimental)

Internal metrics

Name	Type	Description
`ebpf_tracer_flushes`	Histogram	Length of the groups of traces flushed from the eBPF tracer to the next pipeline stage
`otel_metric_exports`	Counter	Length of the metric batches submitted to the remote OTEL collector
`otel_metric_export_errors`	CounterVec	Error count on each failed OTEL metric export, by error type
`otel_trace_exports`	Counter	Length of the trace batches submitted to the remote OTEL collector
`otel_trace_export_errors`	CounterVec	Error count on each failed OTEL trace export, by error type
`prometheus_http_requests`	CounterVec	Number of requests towards the Prometheus Scrape endpoint, faceted by HTTP port and path