Jellyfin keeps getting shutdown due to OOM errors

[RoyalFaceMelter]

How about

Code:

grep dockerd /var/log/syslog

That one worked, the output is on Pastebin:

https://pastebin.com/C6PKqfbw

[TheDreadPirate]

Not particularly helpful.....

You are not the first unRAID user to have this problem. I don't recall what, if any, of the prior users did to fix this problem. Or if they even fixed their problem.

[RoyalFaceMelter]

Not particularly helpful.....

You are not the first unRAID user to have this problem.  I don't recall what, if any, of the prior users did to fix this problem.  Or if they even fixed their problem.

Yeah, I didn't think it looked like much either. At any rate, I am not sure if I "fixed" the issue, but I definitely slowed to the point it hasn't happened in a couple days now.

In trial and error, I went in and disabled some plugins. I disabled the Opensubtitles Plugin (and uninstalled it) and I think that might have done it. I am not sure why and how, but that's I did...I can come back and update this post if it ends up being a good fix.

[RoyalFaceMelter]

Hey, so disabling the Opensubtitles plugin appears to have fixed the issue, but I guess not...I did manage to collect the logs of a crash cycle. I put the log on pastebin. This is everything from the first OOM message up until Jellyfin crashed. Any help would be appreciated!

https://pastebin.com/jkaiiD3f

[TheDreadPirate]

I have only ever seen this issue on unRAID and I don't recall there being a solution.

I'm wondering if one environment variable isn't getting set. IIRC, in the container config, there is an option to add environment variables. Open the config for the jellyfin container, add a new environment variable called "MALLOC_TRIM_THRESHOLD_", with the extra underscore at the end, and give it a value of 131072.

[RoyalFaceMelter]

I have only ever seen this issue on unRAID and I don't recall there being a solution.

I'm wondering if one environment variable isn't getting set.  IIRC, in the container config, there is an option to add environment variables.  Open the config for the jellyfin container, add a new environment variable called "MALLOC_TRIM_THRESHOLD_", with the extra underscore at the end, and give it a value of 131072.

Sorry I was away for a while and didn't see that you'd replied. This issue does continue to happen. I just added that variable you suggested so fingers crossed!

What does the variable do?

[TheDreadPirate]

It triggers Jellyfin (DOTNET?) to deallocate memory more aggressively than it would otherwise.

I was researching something unrelated and saw something that got me thinking unRAID might be overriding docker environment variables. You are one of many unRAID users with this exact same problem. But docker users on plain Linux don't have this problem.

I will do some testing on my unRAID test bench over the weekend.

[RoyalFaceMelter]

It triggers Jellyfin (DOTNET?) to deallocate memory more aggressively than it would otherwise.

I was researching something unrelated and saw something that got me thinking unRAID might be overriding docker environment variables.  You are one of many unRAID users with this exact same problem.  But docker users on plain Linux don't have this problem.

I will do some testing on my unRAID test bench over the weekend.

This just happened again today, so sadly it doesn't appear that adding that line changed anything

Did your testing come up with anything?

[TheDreadPirate]

Haven't had a chance due to other obligations. I will be booting unRAID up in a bit to let it run overnight and most of tomorrow morning and will report back.