Rework reactor netty context tracking #9286
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| int resendCount = resendCountIncrementer.applyAsInt(parentContext); | ||
| if (resendCount > 0) { | ||
| attributes.put(SemanticAttributes.HTTP_RESEND_COUNT, resendCount); | ||
| } |
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I don't really remember why I decided to put that in onEnd(), but there should be no problem adding this attribute onStart(), we might as well move it there.
mateuszrzeszutek
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Sep 22, 2023
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Despite previous attempts reactor netty redirect tests are still flaky.
https://ge.opentelemetry.io/s/35kxioqhifawm/tests/task/:instrumentation:reactor:reactor-netty:reactor-netty-1.0:javaagent:test/details/io.opentelemetry.javaagent.instrumentation.reactornetty.v1_0.ReactorNettyHttpClientTest/redirectToSecuredCopiesAuthHeader()?expanded-stacktrace=WyIwIl0&top-execution=1
In the flaky test output we have
http.url=http://localhost:38413/to-secured http.status_code=200andhttp.url=http://localhost:38413/secured http.status_code=302which indicates that responses are swapped for these requests.As reactor netty request and response are really the same object that is accessed through different interfaces we can just cast the response to request and attach context to it, which should allow as accurately match requests with responses. Requests with error where response is null (I think it has to be some kind of connection error, like timeout or wrong port) for this to happen will still use the queue. Also I moved filling resend count from end to start which should ensure that we add it to the correct span as start, unlike end, is called in correct order.