Elastic APM tracing layer. Uses the native ingest API.
Add the crate to your Cargo.toml file:
toml
tracing-elastic-apm = "desired version"
Create a new tracing Layer:
rust
let layer = tracing_elastic_apm::new_layer(
"ServiceName".to_string(),
tracing_elastic_apm::Config::new("APM address".to_string())
);
Register the layer:
rust
tracing_subscriber::registry()
.with(layer)
.init();
Take a look at Config for more configuration options.
APM doesn't support the notion of idle time and only tracks actual span durations. Async code naturally interleaves spans at await points, which means span start time + duration might be lower than actual span end time as measured by a wall clock. That in turn means child spans in APM might sometimes start after the parent span start time + duration.