Pauses during playback when emby server is behind reverse proxy

[bludus 5]

Hello,

I hope to find help with the issue here below, as I found nothing helpful in the forum and I come to a dead end...

I have an emby server (just upgraded to ver. 4.6.1) running in a container, behind a reverse proxy (nginx) in a container too.

My problem is that when a video is transcoded (hls protocol), the playback with the web app (behaviour verified with firefox on a linux pc and chromium edge on a windows pc) is not smooth, but with frequent pauses.

I checked that the transcoding process and the bandwidth are not a bottleneck, and that the issue is not present when I access the emby server without the reverse proxy.

I noticed that with the reverse proxy the .ts fragments are received by the browser 10 times slower than without the reverse proxy, and that with the reverse proxy I get a lot of bufferStalledError and bufferNudgeOnStall errors, with the websocket frequently closed and re-opened.

For information, I attach a couple of screenshots of the browser console playing the same video with (pauses during playback) and without (smooth playback) the reverse proxy, together with the related emby server log and transcoding logs.

I suspect that the issue could be linked to the reverse proxy configuration, so I attach the nginx config for emby also.

Thanks a lot in advance for any help.

Cheers

Maurizio

 

embyserver.txt nginx-emby-config.txt playback with reverse proxy - ffmpeg-transcode-f8f6eca5-8a7b-4a55-a030-6c02bc9e73a9_1.txt playback without reverse proxy - ffmpeg-transcode-b1f3c250-2713-47c3-a9cc-9a3449496811_1.txt

[Luke 42077]

@bludus are you still having an issue with this?

[bludus 5]

Hi Luke,

actually I was missing a keepalive directive in the reverse proxy config, which caused to open/close a new connection for each video chunk request.

Once added, the issue disappeared...

Cheers

Maurizio

[Luke 42077]

@bludus thanks for the feedback !

[Carlo 4560]

10 hours ago, bludus said:

Hi Luke,

actually I was missing a keepalive directive in the reverse proxy config, which caused to open/close a new connection for each video chunk request.

Once added, the issue disappeared...

Cheers

Maurizio

Oh wow, yea that would cause some network delays.  Glad you got it figured out!

[plessers@gmail.com 32]

On 12/06/2021 at 11:10, bludus said:

actually I was missing a keepalive directive in the reverse proxy config

Hi @bludus,

can you share your ngix config?

I also had an issue and had to turn off buffering. But maybe your keepalive directive could solve my problem as well.

grtz 

bartplessers

 

[Luke 42077]

3 hours ago, plessers@gmail.com said:

Hi @bludus,

can you share your ngix config?

I also had an issue and had to turn off buffering. But maybe your keepalive directive could solve my problem as well.

grtz 

bartplessers

 

Suggested nginx config is here: 

 

[plessers@gmail.com 32]

On 11/06/2024 at 04:28, Luke said:

Suggested nginx config is here

Thanx. Lifesaver!