add metrics to satisfy http server semantic conventions

[fatsheep9146]

Signed-off-by: Ziqi Zhao [email protected]

related #70

Changes

Add more metrics to satisfy http server metrics semantic coventions

• http.server.request.size
• http.server.response.size
• http.server.active_requests

http.server.response.size dashboard demo

http.server.active_requests dashboard demo

[cijothomas]

Qn - how does the Go front end export this? Is it done via OTLP exporter? Or via Prometheus directly?

[cijothomas]

Qn - how does the Go front end export this? Is it done via OTLP exporter? Or via Prometheus directly?

never mind, I think i got the answer from https://github.com/open-telemetry/opentelemetry-demo/blob/main/src/frontend/main.go#L108

[fatsheep9146]

Qn - how does the Go front end export this? Is it done via OTLP exporter? Or via Prometheus directly?

never mind, I think i got the answer from https://github.com/open-telemetry/opentelemetry-demo/blob/main/src/frontend/main.go#L108

Yes, via OTLP exporter

[cartersocha]

@fatsheep9146, could you update the changelog and then I'll merge

[cartersocha]

Trying to get better about that upfront 😄. Do any docs need to be updated? I think we have a centralized metric doc but it's a bit immature

[puckpuck]

Would this PR be in conflict with #236 which is replacing frontend with a Next.js based service?

[fatsheep9146]

Would this PR be in conflict with #236 which is replacing frontend with a Next.js based service?

Yes, I think @puckpuck is right, since the whole frontend service is replaces with Next.js implementation. Should I close this pr ? @cartersocha

[cartersocha]

Yes let’s wait for the new front end

[fatsheep9146]

@cartersocha I think #70 , #49 should also be modified or close to avoid confusion

[cartersocha]

Roger that. Thanks for calling them out. Closed for now