Reduce pressure on source by caching

[mahmoud-eskandari]

Question

Hi esteemed Mediamtx maintainers <3,

I have multiple proxy publisher servers that relay a stream from a single streaming server. I need assistance in finding the most efficient way to reduce the load on the streaming server.

streamer config:

paths:
  all_others:
     source: publisher

proxy publishers config:

paths:
  "~^air/(.+)$":
    source: rtsp://streamer-address:8554/air/$G1

I need the publisher servers to cache requests in either disk or memory to prevent call streamer server for every single requests otherwise publishers is useless.

Do they operate this way by default?

Thanks

[mahmoud-eskandari]

@aler9

[aler9]

Hello, the behavior you want is already enforced by default.

If some user requests URL rtsp://proxy/air/mystream, the proxy will reach down the streamer server and start downloading stream rtsp://streamer-address:8554/air/mystream.

If another user request the same URL, the proxy won't download the stream twice from streamer server, but will use the existing stream.