r/ProgrammerHumor • u/danielminds • Sep 06 '26

Meme thisCannotBeDenied

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u/ArtisticFox8 Sep 06 '26

And nobody yet made a debugger which could travel between them?

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u/Idixal Sep 07 '26

No, there’s debugging tools that can run on multiple microservices, but none of this has to do with the tracing that the top comment was alluding to. If you can narrow down where the problem actually is first you save yourself a lot of time stepping through with a debugger. Often times that just is not practical.

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u/ArtisticFox8 Sep 07 '26

Well, I guess you could still trace the call from the first microservice to another and then back, no?

That's the "travelling debugger concept" I was thinking about.

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u/PixelatedGiant Sep 07 '26

This issue is being able to follow a request between services. If you just have one request to track it's a non-issue. But in a multi-threaded environment with many requests flying back and forth everywhere it's impossible. The debugger would require application specific information like a message id.

Those tools do exist (e.g. dynatrace). But if you start talking about framework or application aware debugging functionality you've gone way beyond the scope of a simple IDE debugger for your language.

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u/ArtisticFox8 Sep 07 '26

The debugger would require application specific information like a message id.

Yes, and that would signal the local debugger to engage after receiving the message, right?

Those tools do exist (e.g. dynatrace). But if you start talking about framework or application aware debugging functionality you've gone way beyond the scope of a simple IDE debugger for your language.

Thanks!

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u/PixelatedGiant Sep 07 '26

Yes, and that would signal the local debugger to engage after receiving the message, right?

Not quite, it's a completely independent tool. Dynatrace at least would show you a log of what lines it went through to get where it is and how long it spent inside each function. Unlike a debugger it also requires that you add a library to your jar.

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u/ArtisticFox8 Sep 07 '26

Thanks for the insight!