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Clarify non-blocking requirement from span API End #1555

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Mar 29, 2021
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Clarify non-blocking requirement from span API End #1555

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5ca64dc
Remove non-blocking requirement from span API End
MrAlias Mar 17, 2021
572223c
Add changes to changelog
MrAlias Mar 17, 2021
dbf91a2
Merge branch 'main' into fix-1522
MrAlias Mar 22, 2021
8855482
Clarify instead of removing
MrAlias Mar 22, 2021
4109f5b
Update api.md
MrAlias Mar 22, 2021
88d57ed
Merge branch 'main' into fix-1522
carlosalberto Mar 22, 2021
f757553
Update specification/trace/api.md
MrAlias Mar 23, 2021
88daf9c
Merge branch 'main' into fix-1522
MrAlias Mar 23, 2021
a44bf31
Update specification/trace/api.md
MrAlias Mar 26, 2021
fab954e
Merge branch 'main' into fix-1522
MrAlias Mar 26, 2021
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -17,6 +17,7 @@ release.
- Clarify the description for the `TraceIdRatioBased` sampler needs to include the sampler's sampling ratio. ([#1536](https://github.com/open-telemetry/opentelemetry-specification/pull/1536))
- Define the fallback tracer name for invalid values.
([#1534](https://github.com/open-telemetry/opentelemetry-specification/pull/1534))
- Clarify non-blocking requirement from span API End. ([#1555](https://github.com/open-telemetry/opentelemetry-specification/pull/1555))

### Metrics

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9 changes: 8 additions & 1 deletion specification/trace/api.md
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Expand Up @@ -617,7 +617,14 @@ Parameters:
- (Optional) Timestamp to explicitly set the end timestamp.
If omitted, this MUST be treated equivalent to passing the current time.

This API MUST be non-blocking.
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Expect this operation to be called in the "hot path" of production
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applications. It needs to be designed to complete fast, if not immediately.
This operation itself MUST NOT perform blocking I/O on the calling thread.
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Any locking used MUST be minimized and SHOULD be removed entirely if
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possible. The downstream SpanProcessors and subsequent SpanExporters called
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from this operation may be used for testing, proof-of-concept ideas, or
debugging and may not be designed for production use themselves. They are not
in the scope of this requirement and recommendation.

#### Record Exception

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