fix doc

core/Cargo.toml

@@ -400,14 +400,14 @@ libtest-mimic = "0.8"
 opentelemetry = { version = "0.27", default-features = false, features = [
     "trace",
 ] }
-opentelemetry-otlp = "0.26"
-opentelemetry_sdk = "0.26"
+opentelemetry-otlp = "0.27"
+opentelemetry_sdk = { version = "0.27", features = ["rt-tokio"] }
 pretty_assertions = "1"
 rand = "0.8"
 sha2 = "0.10"
 size = "0.4"
 tokio = { version = "1.27", features = ["fs", "macros", "rt-multi-thread"] }
-tracing-opentelemetry = "0.27.0"
+tracing-opentelemetry = "0.28.0"
 tracing-subscriber = { version = "0.3", features = [
   "env-filter",
   "tracing-log",

core/src/layers/tracing.rs

@@ -59,13 +59,12 @@ use crate::*;
 ///
 /// # fn main() -> Result<()> {
 /// use opentelemetry::trace::TracerProvider;
-/// let tracer_provider = opentelemetry_otlp::new_pipeline()
-///     .tracing()
-///     .with_exporter(opentelemetry_otlp::new_exporter().tonic())
-///     .with_trace_config(trace::Config::default().with_resource(Resource::new(vec![
+/// let tracer_provider = opentelemetry_sdk::trace::TracerProvider::builder()
+///     .with_simple_exporter(opentelemetry_otlp::SpanExporter::builder().with_tonic().build()?)
+///     .with_resource(Resource::new(vec![
 ///         KeyValue::new("service.name", "opendal_example"),
-///     ])))
-///     .install_simple()?;
+///     ]))
+///     .build();
 /// let tracer = tracer_provider.tracer("opendal_tracer");
 /// let opentelemetry = tracing_opentelemetry::layer().with_tracer(tracer);
 ///