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fix(span_processor): only call on_start with recording spans #3011

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Merged
merged 2 commits into from
May 30, 2025
Merged

fix(span_processor): only call on_start with recording spans #3011

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80806e1
fix(span_processor): only call on_start with recording spans
paullegranddc May 30, 2025
159e336
fix: fmt
paullegranddc May 30, 2025
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3 changes: 3 additions & 0 deletions opentelemetry-sdk/CHANGELOG.md
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Expand Up @@ -2,6 +2,9 @@

## vNext

- TODO: Placeholder for Span processor related things
- *Fix* SpanProcessor::on_start is no longer called on non recording spans

## 0.30.0

Released 2025-May-23
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10 changes: 6 additions & 4 deletions opentelemetry-sdk/src/trace/tracer.rs
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Expand Up @@ -13,7 +13,7 @@ use crate::trace::{
IdGenerator, ShouldSample, SpanEvents, SpanLimits, SpanLinks,
};
use opentelemetry::{
trace::{SamplingDecision, SpanBuilder, SpanContext, SpanKind, TraceContextExt, TraceFlags},
trace::{SamplingDecision, Span as _, SpanBuilder, SpanContext, SpanKind, TraceContextExt, TraceFlags},
Context, InstrumentationScope, KeyValue,
};
use std::fmt;
Expand Down Expand Up @@ -281,9 +281,11 @@ impl opentelemetry::trace::Tracer for SdkTracer {
}
};

// Call `on_start` for all processors
for processor in provider.span_processors() {
processor.on_start(&mut span, parent_cx)
if span.is_recording() {
// Call `on_start` for all processors
for processor in provider.span_processors() {
processor.on_start(&mut span, parent_cx)
}
}

span
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