I am on a Mac Mini with a 1TB SSD. After a few years my SSD is running out of space, while I keep all my user data on an external drive. My system is loaded with Multimedia Apps Photoshop, Final Cut Pro, Logic Pro X, Garage Band and many others.
When trying to find the file(s) that can be removed on the SSD, using CleanMyMac X function of Space Lens, I bump into a very large file in /Users/username/Library/Group Containers/group.com.lminhtm.tempmonitor/db.realm. This file is a whacking 378GB!
Through Google searches I can’t find any mention of this file.
Does anyone have a suggestion?
MacOS – Very large file located within ~/Library/Group Containers/group.com.lminhtm.tempmonitor/db.realm
catalinamacosssdstorage
Related Solutions
It's likely in /Volumes/MobileBackups and you can easily delete it by entering Time Machine and navigating to the folder where the file existed. Select the file then command-click (right-click) and delete all backups of that file.
Normally, the system information window shows the backup space, but I have seen this window get hung up and not properly report storage space when Spotlight and/or the disk catalog are wonky.
You can also wipe all local backups by disabling the local store:
sudo tmutil disablelocal
If the above steps doesn't work, you'll want to boot into recovery mode and run Disk Utility to check that the directory structure and file system catalog are correct. A fsck -fy / in single user mode is also equivalent if you are so inclined to fix things from terminal or want to perform a safe boot and have the system clean things up systematically.
The files in ~/Library/Suggestions are used internally to support some of macOS's machine learning features, like Spotlight Suggestions, Suggested Contacts, and data detectors. These files are not being suggested to you.
A .cmSketch file probably contains a count-min sketch data structure. It does not contain any human-readable data. Given the name of this file, it is probably used to estimate how often, or for how long, you chat with your contacts on iMessage.
Best Answer
Group Containers are basically Containers, which are sandboxes for applications to store date (user data, caches, logs, etc), except the Group part means that it's at a developer level. This could be used to, for instance, keep a user logged into the same account across multiple apps made by the same developer. That said, it could be used for anything, which is what this appears to be.
You could check with the developer, in this case: https://github.com/lminhtm. Otherwise, I'd make a backup and delete (or just move it to a different location), then test any apps you have from this developer (maybe this one?).