4.9.1.80 and Scan media library

[Teddy 100]

I updated to version 4.9.1.80 and for the first scan took 7:29 hours.

Subsequent scans after a windows reboot, take around 3 hours, but if I run another scan, they take around 3 minutes.

If I don't reboot Windows, the scans last 3 minutes, but after thewindows reboot n, the first scan always takes 3 hours or more.

I imagine there's some kind of cache that disappears when Windows restarts, and my question is whether it's possible to keep that cache active so the first scan doesn't take so long after the reboot. (Even if I restart Emby Server, the scan still takes 3 minutes during that Windows session.)

[Luke 42077]

Hi there, please attach the Emby server log from when the problem occurred:

How to Report a Problem

Thanks!

 

[Teddy 100]

Hi Luke , I'm sending the files you requested. If you'd like me to do any kind of testing, please let me know.

embyserver-63895547977.txt hardware_detection-63895532217.txt

[Teddy 100]

Now I've cleared the logs and rebooted Windows to generate a new log with a new scan after te reboot.

When it done, I'll send it to you in a several hours.

[Teddy 100]

Luke, I'm sending you the logs from the first scan after rebooting Windows, which takes about 3 hours, and the subsequent ones, which last about 2 or 3 minutes.

 

[Teddy 100]

embyserver.txt embyserver-63895651200.txt hardware_detection-63895684836.txt

[brothom 177]

11 minutes ago, Teddy said:

Luke, I'm sending you the logs from the first scan after rebooting Windows, which takes about 3 hours, and the subsequent ones, which last about 2 or 3 minutes.

Perhaps the first scan after updating requires reloading any/all the items in the database.
Does the second scan perform better on your end? 

[Teddy 100]

Please what I explain about the problem I have.

[Teddy 100]

Sorry Luke ,  from the logs any idea why that scanning so deep behavior occurs after windows rebooting?

Edited October 10, 2025 by Teddy

[Luke 42077]

What if you restart emby server without rebooting the machine? How does that compare?

[Teddy 100]

So, there's no problem either. After restoring Emby Server, the scan only took a little over 3 minutes.

That's why I was wondering if Emby Server has some kind of cache for the last scan that can disappear when Windows reboots.

I'm also trying to check, since access to the NAS is via WebDAV, if that could be the problem.

[Luke 42077]

If you restarted Emby Server then it sounds more like operating system level hard disk caches.

[Teddy 100]

You're right, Luke. I'll try to investigate whether the problem is with Raidrive (WebDAV) or something else.

Thanks so much for your help.