Exporter's port not officially allocated conflicts with another exporter

[guillemj]

Hi!

It seems that this exporter's port has not been allocated in the official prometheus port registry https://github.com/prometheus/prometheus/wiki/Default-port-allocations, and it conflicts (not sure if always or this is a recent thing), with the port from https://github.com/matsumana/td-agent_exporter. It would be nice if an official port allocation got requested.

[ncabatoff]

Hi @guillemj,

Thanks for the suggestion. I'm reluctant to change the current port since that would likely break many user's setups. Not sure I see a good path forward here, do you?

[guillemj]

Right, I've just checked the td-agent project and it seems it started using the port later than process-exporter (2017 vs 2016; or https://github.com/matsumana/td-agent_exporter/commit/000f10553a5eae985dfbfd0beb1450782c1b82b9#diff-f4d7b652a668444bc7ecd314adb7832856159d2f34869caac795b2c1c52acc54R21 vs 751459ad6079c7463d2ec67ae0290f3e15c17b6a).

Also it looks to me like the td-agent is fringy, certainly compared to the process-exporter. So I think a way forward would be to kindly ask the td-agent developers to use a different port, and at the same time perhaps add it to the port-allocation wiki, so that people are aware of the usage? I think you might be in a better position to do the above, but if you'd prefer I'd be fine requesting this to the td-agent developers.

[guillemj]

Actually, I've just noticed that a few ports are already noted in the (publicly editable) wiki as used by multiple projects, so I've gone ahead and added it there. But I guess at least notifying the td-agent developers about the collisions would still be best.