Can’t eject external drive. AMP Library Agent takes 90% of CPU

Halo_Strider wrote:

Hi,

I’m on clean installed Big Sur 11.4. I have three LaCie Rugged HDDs by 4 TB each. I store music and movies on them. Once I connect a drive to my MBP Retina 2015, open the folder with movies, try to eject the drive, get this: “The disk is in use”.

From Terminal I found out that AMP Library Agent somehow uses the drive, Activity Monitor shows this process using 96% of CPU.

***? It’s clean install, any drive behaves like this if it stores multiple movies. Now I have to manually kill the process or log out to safely eject the drive.

I don’t use library sharing, not a single app runs at the time, nothing uses the external drive but this agent.

Does anybody have the same issue?

No mention of force eject option... ?

From Terminal you can copy and paste:

diskutil umount 

notice the trailing blank space; drag and drop your external drive from the Desktop to the Terminal window to complete the path.

ex.

MacBook-Pro ~ % diskutil umount /Volumes/128MB

Volume 128MB on disk2s1 unmounted

MacBook-Pro ~ %

Change Spotlight preferences on Mac

Add 

To exclude a location from Spotlight searches, click the Add button , then select a folder or disk. You can also drag folders or disks into the list. 

If you exclude a Time Machine backup disk, you will continue to see messages that Spotlight is indexing it. This indexing is necessary for Time Machine to function properly and can’t be disabled. Spotlight does exclude from searches items stored on the backup disk that are not part of a Time Machine backup.

Important: If you exclude certain files and folders you may not be notified when updates become available for some apps. If you exclude your entire internal disk, you won’t be notified about any updates.

Halo_Strider wrote:

Sure thing, Finder asks if I want to force eject but I don’t want to corrupt the data this way.

Either, I kill the process with Activity Monitor or log out, log back in and then eject the drive without opening it.

Big Sur suggests that kind of pain each time I eject the drive?)))

AMPLibraryAgent goes 90% CPU once I simply open the folder with totally random movies on any external drive. This didn’t happen before 11.3.1

If you can't eject a disk from Mac - Apple Support

https://support.apple.com/guide/mac-help/app-a-disk-eject-mac-mh27076/11.0/mac/11.0

You can submit your feedback or file a bug report : https://www.apple.com/feedback/macos.html

or Call Customer Support (800) MY–APPLE (800–692–7753)

This article offers several possible solutions

Kind of hard to know without a test.

Please, do keep us updated, if time allows.

Sorry to read that. Honestly - am stuck for more suggestions. Perhaps some more experienced Contributors will pickup this thread and offer more in-depth insight or solutions.

Welcome and only if time allows - interested in the solution as many others would be too.