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Trace SSL handshakes in netty 4.0 #4635

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mateuszrzeszutek
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Continuation of #4604

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Have we already discussed having this as event as opposed to a span? Is there any separation between start/end for that span?

named("doConnect")
.and(takesArgument(0, SocketAddress.class))
.and(returns(named("io.netty.channel.ChannelFuture"))),
named("doConnect0")
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Just out of curiosity - why this change?

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The doConnect actually traces more than just connection - it starts with tracing channel registration (which happens before) and ends after handler channelActive() has returned (which is way after SSL handshake is finished). The doConnect0 method seems to be doing just the connection, which is more accurate.

@mateuszrzeszutek
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Have we already discussed having this as event as opposed to a span? Is there any separation between start/end for that span?

We've briefly touched upon this idea in the last PR, and we have #4617 where we can discuss it further. To sum up the previously mentioned points: SSL handshake takes time and has non-zero duration, and can fail - we can record the exception and set the span status.

@mateuszrzeszutek mateuszrzeszutek merged commit 7caa402 into open-telemetry:main Nov 16, 2021
@mateuszrzeszutek mateuszrzeszutek deleted the netty-4.0-ssl branch November 16, 2021 07:36
RashmiRam pushed a commit to RashmiRam/opentelemetry-auto-instr-java that referenced this pull request May 23, 2022
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2 participants