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Fix race condition in reading the dropped spans number (#2615)

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* Fix race condition in reading the dropped spans number

As any race condition this should be consider an undefined behavior, and a patch release should be done.

Signed-off-by: Bogdan Drutu <bogdandrutu@gmail.com>

* Update CHANGELOG.md

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
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Bogdan Drutu 2022-02-16 09:00:31 -08:00 committed by GitHub
parent cd21df42c4
commit 2a9cedf5fe
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2 changed files with 5 additions and 1 deletions
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4
CHANGELOG.md
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@ -8,6 +8,10 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
## [Unreleased]
### Fixed
- Fix race condition in reading the dropped spans number. (#2615)
## [1.4.0] - 2022-02-11
### Added

2
sdk/trace/batch_span_processor.go
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@ -250,7 +250,7 @@ func (bsp *batchSpanProcessor) exportSpans(ctx context.Context) error {
}
if l := len(bsp.batch); l > 0 {
global.Debug("exporting spans", "count", len(bsp.batch), "dropped", bsp.dropped)
global.Debug("exporting spans", "count", len(bsp.batch), "dropped", atomic.LoadUint32(&bsp.dropped))
err := bsp.e.ExportSpans(ctx, bsp.batch)
// A new batch is always created after exporting, even if the batch failed to be exported.