Created
May 11, 2021 22:53
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Opentelemetry hang demonstration
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[package] | |
name = "opentelem_hang" | |
version = "0.1.0" | |
authors = ["Spencer Judge <sjudge@hey.com>"] | |
edition = "2018" | |
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html | |
[dependencies] | |
futures = "0.3" | |
opentelemetry = { version = "0.13", features = ["rt-tokio"] } | |
opentelemetry-jaeger = "0.12" | |
tokio = { version = "1.1", features = ["full"] } | |
tracing = "0.1" | |
tracing-opentelemetry = "0.12" | |
tracing-subscriber = "0.2" |
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#[macro_use] | |
extern crate tracing; | |
fn main() { | |
println!("Hello, world!"); | |
} | |
#[cfg(test)] | |
mod tests { | |
use opentelemetry::global; | |
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt, EnvFilter}; | |
#[tokio::test] | |
async fn hang_demonstration() { | |
let filter_layer = EnvFilter::try_from_default_env() | |
.or_else(|_| EnvFilter::try_new("info")) | |
.unwrap(); | |
let pretty_fmt = tracing_subscriber::fmt::format() | |
.pretty() | |
.with_source_location(false); | |
let tracer = opentelemetry_jaeger::new_pipeline() | |
.install_batch(opentelemetry::runtime::Tokio) | |
.unwrap(); | |
let opentelemetry = tracing_opentelemetry::layer().with_tracer(tracer); | |
tracing_subscriber::registry() | |
.with(opentelemetry) | |
.with(filter_layer) | |
.with( | |
tracing_subscriber::fmt::layer() | |
.with_target(false) | |
.event_format(pretty_fmt), | |
) | |
.try_init() | |
.unwrap(); | |
info!("Hi"); | |
global::shutdown_tracer_provider(); // sending remaining spans | |
} | |
} |
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