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Investigate molohttp reverse proxy performance regression vs Caddy #100

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opened 2026-07-18 14:06:28 +02:00 by retoor · 0 comments
retoor commented 2026-07-18 14:06:28 +02:00
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Summary

The custom HTTP reverse proxy (molohttp) written in Swift is not performing as expected after replacing Caddy. The proxy was eventually reverted to Caddy. This ticket tracks the architectural investigation needed before attempting the swap again.

Steps to Reproduce

Not provided.

Expected Behaviour

molohttp should perform comparably to Caddy as an HTTP reverse proxy.

Actual Behaviour

  • "Molohttp is working but the performance is not what I expect."
  • "Async in Swift is more sensitive than Python. Need to investigate."
  • The proxy was reverted to Caddy with the note "we're on Caddy again."

Environment

  • Custom HTTP reverse proxy (molohttp) written in Swift
  • Previous proxy: Caddy
  • Web framework for admin/API has implicit dependencies (connection pooling, keep-alive, header rewriting) that break when the underlying HTTP server changes
  • Attempted to replace the web framework but the admin panel has deep dependencies on the framework that made it impossible to swap cleanly

Reported by retoor via DevPlace.

## Summary The custom HTTP reverse proxy (molohttp) written in Swift is not performing as expected after replacing Caddy. The proxy was eventually reverted to Caddy. This ticket tracks the architectural investigation needed before attempting the swap again. ## Steps to Reproduce Not provided. ## Expected Behaviour molohttp should perform comparably to Caddy as an HTTP reverse proxy. ## Actual Behaviour - "Molohttp is working but the performance is not what I expect." - "Async in Swift is more sensitive than Python. Need to investigate." - The proxy was reverted to Caddy with the note "we're on Caddy again." ## Environment - Custom HTTP reverse proxy (molohttp) written in Swift - Previous proxy: Caddy - Web framework for admin/API has implicit dependencies (connection pooling, keep-alive, header rewriting) that break when the underlying HTTP server changes - Attempted to replace the web framework but the admin panel has deep dependencies on the framework that made it impossible to swap cleanly --- *Reported by **retoor** via DevPlace.*
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Reference: retoor/devplacepy#100