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Jellyfin LXC gets clogged by chatty logs #399

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opened 2025-11-20 04:47:53 -05:00 by saavagebueno · 3 comments
saavagebueno commented 2025-11-20 04:47:53 -05:00
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Originally created by @ProgUnlimited on GitHub (Jan 23, 2025).

✅ Have you read and understood the above guidelines?

yes

📜 What is the name of the script you are using?

Jellyfin Media Server LXC

📂 What was the exact command used to execute the script?

bash -c "$(wget -qLO - https://github.com/community-scripts/ProxmoxVE/raw/main/ct/jellyfin.sh)"

📝 Provide a clear and concise description of the issue.

The standard disk space allotted to the LXC is 8GB. Since Jellyfin is extremely verbose in the logs, the space is quickly filled (up to 4GB) by log entries even in standard operation. The issue has been reported on the Jellyfin side, and the workaround/fix is to increase the minimum message priority in the jellyfin config from "Informational" (standard) to a higher level ("Warning" or even "Error".

This leads to the alotted space filling up quickly and a crash of the server (which apart from that is working perfectly until the issue arises).

I recommend to have the script changed in such a way that this change to /etc/jellyfin/logging.json is applied in the standard install or the journal size is limited for the container in the system journal settings

See https://github.com/jellyfin/jellyfin/issues/578

⚙️ What settings are you using?

  • Default Settings
  • Advanced Settings

🖥️ Which Linux distribution are you using?

Debian 12

🔄 Steps to reproduce the issue.

Standard install, scan a sizeable amount of items in teh databse, use the server.
Observe the log filling up quickly (multiple GBs)
Once the log reaches the limits of disk space, server crashes

❌ Paste the full error output (if available).

not available

🖼️ Additional context (optional).

https://github.com/jellyfin/jellyfin/issues/578
https://zedt.eu/tech/linux/how-to-stop-jellyfin-from-logging-to-system-log/

Originally created by @ProgUnlimited on GitHub (Jan 23, 2025). ### ✅ Have you read and understood the above guidelines? yes ### 📜 What is the name of the script you are using? Jellyfin Media Server LXC ### 📂 What was the exact command used to execute the script? bash -c "$(wget -qLO - https://github.com/community-scripts/ProxmoxVE/raw/main/ct/jellyfin.sh)" ### 📝 Provide a clear and concise description of the issue. The standard disk space allotted to the LXC is 8GB. Since Jellyfin is extremely verbose in the logs, the space is quickly filled (up to 4GB) by log entries even in standard operation. The issue has been reported on the Jellyfin side, and the workaround/fix is to increase the minimum message priority in the jellyfin config from "Informational" (standard) to a higher level ("Warning" or even "Error". This leads to the alotted space filling up quickly and a crash of the server (which apart from that is working perfectly until the issue arises). I recommend to have the script changed in such a way that this change to /etc/jellyfin/logging.json is applied in the standard install or the journal size is limited for the container in the system journal settings See [https://github.com/jellyfin/jellyfin/issues/578](https://github.com/jellyfin/jellyfin/issues/578) ### ⚙️ What settings are you using? - [x] Default Settings - [ ] Advanced Settings ### 🖥️ Which Linux distribution are you using? Debian 12 ### 🔄 Steps to reproduce the issue. Standard install, scan a sizeable amount of items in teh databse, use the server. Observe the log filling up quickly (multiple GBs) Once the log reaches the limits of disk space, server crashes ### ❌ Paste the full error output (if available). not available ### 🖼️ Additional context (optional). https://github.com/jellyfin/jellyfin/issues/578 https://zedt.eu/tech/linux/how-to-stop-jellyfin-from-logging-to-system-log/
saavagebueno commented 2025-11-20 04:47:53 -05:00
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@pearfire575 commented on GitHub (Jan 24, 2025):

I can confirm, my server crashed by filling up with logs the 8GB default disk space. Unfortunately it crashes the SQL DB badly and won't start again. Had to wipe the LXC and start from scratch.

The problem happened after a week of install and no more than 3 movies viewed.

@pearfire575 commented on GitHub (Jan 24, 2025): I can confirm, my server crashed by filling up with logs the 8GB default disk space. Unfortunately it crashes the SQL DB badly and won't start again. Had to wipe the LXC and start from scratch. The problem happened after a week of install and no more than 3 movies viewed.
saavagebueno commented 2025-11-20 04:47:53 -05:00
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@MickLesk commented on GitHub (Jan 24, 2025):

and where need to optimize this?

@MickLesk commented on GitHub (Jan 24, 2025): and where need to optimize this?
saavagebueno commented 2025-11-20 04:47:54 -05:00
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@ProgUnlimited commented on GitHub (Jan 24, 2025):

Well, the solution on the Jellyfin side is to adapt the error level. If this could be implemented in the setup script e.g. along the lines of

sed -i 's/"MinimumLevel": "Informational"/"MinimumLevel": "Error"/g' /etc/jellyfin//loggin.json

this would make the server run sustainably within the 8GB standard disk space alotted (which otherwise is perfectly fine). Otherwise, the server crashes essentially inevitably rather sooner than later due to the extremely chatty logging in the standard setup, even during perfectly normal usage

@ProgUnlimited commented on GitHub (Jan 24, 2025): Well, the solution on the Jellyfin side is to adapt the error level. If this could be implemented in the setup script e.g. along the lines of sed -i 's/"MinimumLevel": "Informational"/"MinimumLevel": "Error"/g' /etc/jellyfin//loggin.json this would make the server run sustainably within the 8GB standard disk space alotted (which otherwise is perfectly fine). Otherwise, the server crashes essentially inevitably rather sooner than later due to the extremely chatty logging in the standard setup, even during perfectly normal usage
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Reference: SVI/ProxmoxVE#399
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