Constant RPC_CLIENT_DURATION 

pub const RPC_CLIENT_DURATION: &'static str;

Available on crate features opentelemetry and semconv_experimental only.

Description

Measures the duration of outbound RPC.

Notes

While streaming RPCs may record this metric as start-of-batch to end-of-batch, it’s hard to interpret in practice.

Streaming: N/A

Metadata

Instrument:	histogram
Unit:	ms
Status:	Development