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Use first-seen instrument name for name conflicts #4428

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merged 4 commits into from
Aug 10, 2023

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MrAlias
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@MrAlias MrAlias commented Aug 9, 2023

Resolve #3835
Resolve #3653

It has been clarified at the specification level1 that instrument name conflicts need to be resolved by using the first-seen instrument name as the produced data stream name. This changes our implementation to comply with this and adds testing to prevent regression.

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  1. https://github.com/open-telemetry/opentelemetry-specification/issues/3539

@MrAlias MrAlias added pkg:SDK Related to an SDK package area:metrics Part of OpenTelemetry Metrics labels Aug 9, 2023
@MrAlias MrAlias added this to the v1.17.0/v0.40.0 milestone Aug 9, 2023
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codecov bot commented Aug 9, 2023

Codecov Report

Merging #4428 (118569c) into main (b44a2bb) will decrease coverage by 0.1%.
The diff coverage is 100.0%.

Additional details and impacted files

Impacted file tree graph

@@           Coverage Diff           @@
##            main   #4428     +/-   ##
=======================================
- Coverage   81.2%   81.2%   -0.1%     
=======================================
  Files        247     247             
  Lines      19996   20006     +10     
=======================================
+ Hits       16248   16256      +8     
- Misses      3405    3407      +2     
  Partials     343     343             
Files Changed Coverage Δ
sdk/metric/instrument.go 92.0% <100.0%> (+0.2%) ⬆️
sdk/metric/pipeline.go 88.5% <100.0%> (+0.2%) ⬆️

... and 1 file with indirect coverage changes

@MrAlias MrAlias merged commit 10d9038 into open-telemetry:main Aug 10, 2023
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@MrAlias MrAlias deleted the first-seen-stream-name branch August 10, 2023 16:58
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