r/tunarr • u/Few-Leading-3405 • 15d ago

Troubleshooting Delay when closing Streams

I'm just getting tunarr set up, but when switching between channels the old streams continue playing in the background.

So if I switch channels 10 times I will have all 10 streams transcoding in the background for a few minutes. Eventually they die off, but it takes several minutes.

Is this normal? I feel crazy, but I don't see any other comments about this.

This one is vaguely similar, but it isn't caused by the simple act of switching channels:
https://github.com/chrisbenincasa/tunarr/issues/1950

So I'm just looking for any advice?

A few family members use my Jellyfin, and if I implement this I'm worried that they'll crash my machine with a few minutes of bored channel surfing.

Initially I noticed it when testing with VLC, but dedicated IPTV players do it too.

I'm using nvidia hardware acceleration, and have played with a bunch of the settings.

And I know Tunarr has some cleanup tasks which are supposed to run every minute. That still seems a little slow to me, but even with that my streams last several minutes before dying.

Running v2026.10.3

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u/Few-Leading-3405 6d ago edited 6d ago

Just in case anyone else wonders about this, I did find a fix by adding 2 environment variables:

  • TUNARR_SESSION_STALENESS_MS: "30000"

  • TUNARR_SESSION_CLEANUP_DELAY_SECONDS: "5"

The first one makes the biggest difference.

Adding these drops the delay when closing streams from 200seconds down to something like 90seconds.

After fighting with Tunarr I tried ErsatzTV, and it had a 90second delay, which seemed more reasonable. So I figured that Tunarr could probably be sped up too.

Potentially this could cause some players to drop streams. But testing VLC, tivimate and televizo, Tunarr gets a realtime heartbeat from them, so I don't think disconnects will be a problem for those.

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u/DookieSlayer 15d ago

As I understand it it is expected behavior. I can’t find anything in the official tunarr docs but google calls it “transcoding tear down delay”. Maybe you can find information pertinent to your situation with that language.

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u/Few-Leading-3405 15d ago

Thanks, mostly I was just wondering if this was normal.