[receiver/kafka] Fix bug that was blocking shutdown #32720
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crobert-1
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Description:
The kafka receiver's shutdown method is to cancel the context of a running sub goroutine. However, a small bug was causing a fatal error to be reported during shutdown when this expected condition was hit. The fatal error being reported during shutdown was causing another bug to be hit, open-telemetry/opentelemetry-collector#9824.
This fix means that shutdown won't be blocked in expected shutdown conditions, but the
corebug referenced above means shutdown will still be block in unexpected error situations.This fix is being taken from a comment made by @Dennis8274 on the issue.
Link to tracking Issue:
Fixes #30789
Testing:
Stepped through
TestTracesReceiverStartin a debugger before the change to see the fatal status being reported. It was no longer reported after applying the fix. Manually tested running the collector with a kafka receiver and saw that before the fix it was indeed being blocked on a normal shutdown, but after the fix it shutdown as expected.