Remote write compliance: TestRemoteWrite/otelcollector/Staleness

[rakyll]

The OpenTelemetry collector is not passing https://github.com/prometheus/compliance/tree/main/remote_write TestRemoteWrite/otelcollector/Staleness.

=== CONT  TestRemoteWrite/otelcollector/Staleness
    staleness.go:43:
        	Error Trace:	staleness.go:43
        	            				main_test.go:101
        	            				main_test.go:65
        	Error:      	Should be true
        	Test:       	TestRemoteWrite/otelcollector/Staleness
        	Messages:   	found no staleness markers for stale{job="test"}

[alolita]

@rakyll pl advise what needs to be done to resolve this issue?

[alolita]

@punya is someone on your team available to work on this issue? This is a blocker for PRW compliance. Perhaps Fabian could take a look and advise?

[punya]

@alolita let me get back to you this week.

[punya]

Fabian is on vacation until June 14th. I'll ask around if there are other Prometheus experts who can weigh in.

[odeke-em]

Fixed by open-telemetry/opentelemetry-collector#3423 and now we are 100% passing :-) @alolita or @rakyll, please close this issue.