Database size discrepancy on Roon Server (ref#40TLVP)

What app are you having the slowness issue with?

· Roon

What kind of performance/speed issue are you experiencing?

· Other

Please try to reboot your Roon Server

· No, the issue is still the same even immediately after a reboot

Please try to reboot your networking gear (Router/Switches/etc.)

· No, the issue is still the same even after a reboot

Is there any change in behavior if you try to navigate to Roon Settings -> Library and set both Background and On-Demand Audio Analysis to Throttled or Off?

· No, the issue is still the same

Does the issue happen on multiple Roon Remotes (controllers) or just one?

· I only have one Roon remote to test with

Please try to restart your Roon Remote (controller) app

· No, the issue is still the same even after a restart

What is the operating system of your Roon Remote (controller)?

· Mac

Reinstall Windows/MacOS Roon Remote App

· No, I am still having the issue even after reinstalling

Router Domain Name System (DNS) change

· I was able to change my router's DNS servers but it did not help

What is the operating system of your Roon Server host machine?

· MacOS

Describe the issue

Based on feedback from the community it is suspected that something is wrong with my database and subsequent backups. My Roon Server Database is 180+GB in size. Other users with comparable library sizes report ~10GB as their size.

Describe your network setup

Frontier FiberOptic. Ethernet cable to computer.

Hi @John_Kustak1,

Thanks for reaching out to us about this issue. I see that your database is larger than expected but I’m unclear if Roon is not working in some way. Is the large database the only issue or is something else going on?

Roon will stop playing music sometimes when the rotating circle in the upper right is activated. This occurs after I add or move music files. The most recent example was after upgrading my Mac OS and Roon stopped for over 30 minutes.
Also, the Roon Backups have been allocated 500 GB of disk space but Roon after 2 ‘saves’ now fails to back up and the 500 GB is full. I only ask Roon to save 2 copies. Its unreasonable to have to allocate so much disk space for Roon. I thought it was normal to have such large DB. But other users are stating that mine is extremely large for comperable library sizes. I have 160k tracks.

Hey @John_Kustak1,

Thanks for the update! You’re absolutely correct here. Where do you currently store your saved backups?

Could you please access your Roon Server database folder and share a screenshot of what you see?

To access your database folder (best to do this with all instances of Roon closed):

  1. Click ‘Go’ under Finder and hold the option key
  2. Click into ‘Library’
  3. Find your ‘Roon Server’ folder
Snap a screenshot of this, and then navigate to the subfolder ‘Database’ and snap a screenshot of this as well.

We’ll be on standby for your reply! Our team won’t be around over the weekend, but we’ll be back first thing Monday morning.


Backups are saved on their own partition on an external HD. The parti


on is 500GB.

Hi @John_Kustak1 ,

Thanks for that screenshot, that does look odd. I am escalating your case to our team for further review and will get back to you once it has been reviewed.

Is there anything I can do to help or how can we get the size of the DB down to a reasonable size?

Hello @John_Kustak1,

To help us analyze the issue more effectively, could you please check the size of the Roon database and backup folders using the Terminal? Below are a few methods to open the folder in Terminal, depending on what’s most convenient for you:


🔹 Method 1: Right-Click in Finder
  1. Open Finder and navigate to the folder.
  2. Right-click the folder.
  3. Select "New Terminal at Folder" (if available).
If you don’t see this option:
  • Go to System Settings > Keyboard > Keyboard Shortcuts > Services
  • Under Files and Folders, enable "New Terminal at Folder"

🔹 Method 2: Using Finder’s Menu
  1. Open Finder and select the folder.
  2. From the top menu, click Finder > Services > New Terminal at Folder

🔹 Method 3: Drag & Drop
  1. Open Terminal
  2. Drag the folder from Finder into the Terminal window
  3. Press Enter to change into that directory

Once inside the folder, please run the following commands to check the folder sizes:
ls -ltr
find . -maxdepth 2 -exec du -ah {} + | sort -h

Copy and paste the output here so we can review the folder sizes and contents.

Thanks!

The data returned for ‘RoonServer’ is 30MB. txt files are not available to upload here.

Here is the first few lines. Let me know if you want all 30mb and how to get that file to you.

Last login: Wed May 28 09:08:47 on console
(base) jak@Johns-iMac ~ % /Users/jak/Library/RoonServer
zsh: permission denied: /Users/jak/Library/RoonServer
(base) jak@Johns-iMac ~ %
[Restored Jun 6, 2025 at 7:25:09 AM]
Last login: Fri Jun 6 07:20:58 on ttys000
Restored session: Fri Jun 6 07:25:06 PDT 2025
(base) jak@Johns-iMac ~ % /Users/jak/Library/RoonServer
zsh: permission denied: /Users/jak/Library/RoonServer
(base) jak@Johns-iMac ~ % cd /Users/jak/Library/RoonServer
(base) jak@Johns-iMac RoonServer % ls -ltr
total 0
drwxr-xr-x@ 8 jak staff 256 Apr 15 11:36 Database
drwxr-xr-x@ 48 jak staff 1536 Jun 2 01:34 Settings
drwxr-xr-x@ 14 jak staff 448 Jun 5 13:34 Cache
drwxr-xr-x@ 24 jak staff 768 Jun 5 16:01 Logs
drwxr-xr-x@ 13 jak staff 416 Jun 6 02:00 Temp
(base) jak@Johns-iMac RoonServer % find . -maxdepth 2 -exec du -ah {} + | sort -h
0B ./Cache/httpcache_2.db/LOCK
0B ./Cache/httpcache_2.db/LOCK
0B ./Cache/httpcache_2.db/LOCK
0B ./Cache/images/aa/sm
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0B ./Cache/images/db/vl
0B ./Cache/images/db/vl
0B ./Cache/images/db/vl

2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/su/ud/suudaaaa.png
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/tr/ab
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/tr/ab
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/tr/ab
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/tr/ab/trabaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/tr/ab/trabaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/tr/ab/trabaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/um
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/um
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/um
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/vz
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/vz
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/vz
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xf/lb
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xf/lb
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xf/lb
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xf/lb/xflbaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xf/lb/xflbaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xf/lb/xflbaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xn
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xn
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/xn
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yd
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yd
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yd
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/ye/la
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/ye/la
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/ye/la
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/ye/la/yelaaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/ye/la/yelaaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/ye/la/yelaaaaa.jpg
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yw/jn
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yw/jn
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yw/jn
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yw/jn/ywjnaaaa.png
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yw/jn/ywjnaaaa.png
2.0M ./Database/Core/245dce53b63a4030a2f65552f5e5b9e2/images_1/yw/jn/ywjnaaaa.png
2.0M ./Logs/RoonServer_log.14.txt
2.0M ./Logs/RoonServer_log.14.txt
2.0M ./Logs/RoonServer_log.14.txt
2.1M ./Cache/images/bc
2.1M ./Cache/images/bc
2.1M ./Cache/images/bc
2.1M ./Cache/images/bf
2.1M ./Cache/images/bf
2.1M ./Cache/images/bf

I also woke up this morning to the screenshot attached. If the backup process started at 2am, then it was/is running 5+ hours. It likely will not finish.
And yesterday I did some editing on my AppleMusic library. This is where I change the artist name from First last to Last, First. Which causes the folder to change. Which causes Roon to do its magic and track the change and keep the files connected to the Roon library. I did what I think is a handful of artists - maybe 20. Which could be 40 albums and 400 tracks. Roon was playing music during this but at one point the cache ran out and it stopped playing music. I did not time how long it was unavailable - we switched to watching TV.
This is common over the year(s) when a large number of files are moved, Roon takes a while to catch up and sometimes stops playing music as I presume it is busy doing housekeeping.

Hello @John_Kustak1

Please send over a file with the output to our File Uploader.

File uploaded.

Hey @John_Kustak1,

You have my apologies if this has been glazed over, but could you:

  1. Perform a library clean-up in your Roon Settings>Library
  2. Perform a fresh backup to a completely new backup location
  3. Share the size of this fresh back up

    Thank you!


I did the back up before upgrading the version today. 184 GB. Took about 1-2 hours.

I’ll do the upgrade today and another backup.


Tried BK after upgrading software.

And ROON is trying to add some files. I don’t know what these are as I haven’t
added in a while. But I did move some more files around yesterday.

I got the post Software upgrade backup to complete. A whopping 273.77 GB !!!
What are you doing during testing?

Hi @John_Kustak1 ,

Thanks for the new details, we’ve attached this to your ticket and it is pending review by the team. We will reach out again once we have their feedback.

Hi @John_Kustak1 ,

The team is still discussing your case internally, but a question that came up is if this could potentially be related to Various Artists albums. Can you please confirm how many Various Artists albums you have in your library? You should be able to locate this info by navigating in the Roon sidebar to Artists or Albums and then using the text box to filter for such content.