# Plex Constantly \[Full\] Library Scanning **URL:** \ **Category:** Plex Media Server\ **Tags:** server-linux, server-unraid\ **Created:** [June 24, 2025, 2:49pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970 "2025-06-24T14:49:33Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 24, 2025, 2:49pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/1 "2025-06-24T14:49:33Z")
Server Version#: 1.41.8.9834 Since yesterday, my Plex library has been full library scanning. I have tried to use Chuck Pa’s DB tool. I have rebooted my entire unraid server. Nothing seems to work. I have not made any changes that I’m aware of that would trigger these full library scans. It appears to be looping as I’ve noticed it’s scanning over the same movies/shows/libraries over and over. Please help! ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [June 24, 2025, 3:03pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/2 "2025-06-24T15:03:41Z")
Server DEBUG logs ZIP file please ? (this will contain the scanner logs too) ---
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 24, 2025, 4:12pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/3 "2025-06-24T16:12:52Z")
[Plex Media Server Logs\_2025-06-24\_12-11-08.zip](https://forums.plex.tv/uploads/short-url/1rysepEfq1iQrDlsS1mOmxds3Ah.zip) (5.1 MB) ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [June 24, 2025, 4:20pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/4 "2025-06-24T16:20:03Z")
@phishyphun Thanks for the logs. PMS is attempting to scan the media but Unraid is unable to complete the scan ```auto Jun 24, 2025 12:09:46.423 [23284410592056] ERROR - ETP: Uncaught exception in I/O service: thread constructor failed: Resource temporarily unavailable Jun 24, 2025 12:09:46.424 [23284410592056] DEBUG - Push: Processing new content in section 6 for 34 users. Jun 24, 2025 12:09:46.424 [23284410592056] DEBUG - Push: There are 0 new top level things for filter '0' (movie.addedAt>>=1750739090&sort=movie.addedAt:desc&type=1). Jun 24, 2025 12:09:46.425 [23284451138360] DEBUG - Skipping over directory 'FLCL (2000)/Season 04', as nothing has changed; removing 3 media items from map. Jun 24, 2025 12:09:46.425 [23284451138360] DEBUG - Activity: updated activity 9bc322a1-5116-4e3a-9e1a-a79afa0870a5 - completed 42.7% - Scanning Anime Jun 24, 2025 12:09:46.425 [23284451138360] DEBUG - Scanner: Processing directory /media/tv-anime/FLCL (2000)/Season 05 (parent: yes) Jun 24, 2025 12:09:46.425 [23284410592056] DEBUG - Push: There are 0 new top level things for filter '0x152d0c2fd138' (movie.addedAt>>=1750739090&sort=movie.addedAt:desc&type=1). Jun 24, 2025 12:09:46.426 [23284410592056] DEBUG - Push: There are 0 new top level things for filter '0x152d0ad46ba8' (movie.addedAt>>=1750739090&sort=movie.addedAt:desc&type=1). Jun 24, 2025 12:09:46.427 [23284410592056] ERROR - ETP: Uncaught exception in I/O service: thread constructor failed: Resource temporarily unavailable Jun 24, 2025 12:09:46.427 [23284410592056] DEBUG - Push: Processing new content in section 1 for 48 users. Jun 24, 2025 12:09:46.428 [23284410592056] DEBUG - Push: There are 0 new top level things for filter '0' (movie.addedAt>>=1750738789&sort=movie.addedAt:desc&type=1). Jun 24, 2025 12:09:46.428 [23284451138360] DEBUG - Skipping over directory 'FLCL (2000)/Season 05', as nothing has changed; removing 3 media items from map. Jun 24, 2025 12:09:46.429 [23284451138360] DEBUG - Activity: updated activity 9bc322a1-5116-4e3a-9e1a-a79afa0870a5 - completed 43.3% - Scanning Anime Jun 24, 2025 12:09:46.429 [23284410592056] DEBUG - Push: There are 0 new top level things for filter '0x152d27fdde68' (movie.addedAt>>=1750738789&sort=movie.addedAt:desc&type=1). Jun 24, 2025 12:09:46.429 [23284451138360] DEBUG - Scanner: Processing directory /media/tv-anime/Samurai Champloo (2004) (parent: yes) Jun 24, 2025 12:09:46.430 [23284410592056] DEBUG - Push: There are 0 new top level things for filter '0x152d0c305218' (movie.addedAt>>=1750738789&sort=movie.addedAt:desc&type=1). Jun 24, 2025 12:09:46.430 [23284410592056] ERROR - ETP: Uncaught exception in I/O service: thread constructor failed: Resource temporarily unavailable Jun 24, 2025 12:09:46.430 [23284410592056] DEBUG - Push: Processing new content in section 6 for 34 users. ``` > Uncaught exception in I/O service: thread constructor failed: Resource temporarily unavailable You have a volume which is offline but still referred to in PMS ? Do you have a thread limits on the container ? ---
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 24, 2025, 4:32pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/5 "2025-06-24T16:32:38Z")
I do not have a volume offline. I do not have a thread limiter on the container. I remapped my folders for each library to see if that would help, but I just went through each library and all were correctly mapped. @ChuckPa ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [June 24, 2025, 4:38pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/6 "2025-06-24T16:38:43Z")
Would you mind asking the Unraid folks what that error means? What PMS is telling us is : 1. It wants to start another processing thread to scan/do something else ( In Linux terms, it want’s to perform some variant of `fork()` ) 2. Unraid is saying “No, No resources” Possibilities (to my knowlege) 1. System-wide thread count limit 2. Insufficient memory 3. Insufficient swap (to allocate but not use) When did you upgrade to 1.41.8 ? Did you ever see any behavior like this on any version prior ? ---
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 24, 2025, 4:51pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/7 "2025-06-24T16:51:50Z")
Not really sure who to take this to. Should I take to Unraid forums? Plex \> Unraid forum? I upgraded probably morning after it was released to public. Never seen behavior like this. I downgraded just now to 1.41.7 and it was quiet for a minute then started scanning again. ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [June 24, 2025, 4:54pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/8 "2025-06-24T16:54:51Z")
I’d not recommend using 1.41.7 due to the known DB problems. Would you be willing to downgrade to 1. 1.41.6.9685-d301f511a -or- 2. 1.41.5.9522-a96edc606 (change the version in the container definition and let it pull new code only) If it reoccurs, then we know it’s a system limit problem with unraid * * * ALSO, check what unraid is reporting for max-threads ```auto [chuck@lizum ~.2004]$ cat /proc/sys/kernel/threads-max 510292 [chuck@lizum ~.2005]$ free -m total used free shared buff/cache available Mem: 63868 13339 7562 358 42967 49473 Swap: 61034 222 60812 [chuck@lizum ~.2006]$ ``` ### EDIT: ```auto root@Gerbil:~# cat /proc/sys/kernel/threads-max 255697 root@Gerbil:~# uname -a Linux Gerbil 6.6.78-Unraid #2 SMP PREEMPT_DYNAMIC Thu Feb 20 13:33:15 PST 2025 x86_64 Intel(R) Core(TM) i3-7100U CPU @ 2.40GHz GenuineIntel GNU/Linux root@Gerbil:~# ``` ---
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 24, 2025, 5:06pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/9 "2025-06-24T17:06:25Z")
```auto root@WillyCloud:~# cat /proc/sys/kernel/threads-max 511355 root@WillyCloud:~# free -m total used free shared buff/cache available Mem: 64082 17283 1647 1204 47118 46798 Swap: 0 0 0 root@WillyCloud:~# cat /proc/sys/kernel/threads-max 511355 root@WillyCloud:~# uname -a Linux WillyCloud 6.12.24-Unraid #1 SMP PREEMPT_DYNAMIC Sat May 3 00:12:52 PDT 2025 x86_64 12th Gen Intel(R) Core(TM) i5-12600K GenuineIntel GNU/Linux root@WillyCloud:~# ``` I’ve also downgraded to 1.41.6.9685-d301f511a. Same issue. ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [June 24, 2025, 5:08pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/10 "2025-06-24T17:08:11Z")
> [@phishyphun](#): > > `Swap: 0 0 0` You have no swapfile / partition defined ? ---
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 24, 2025, 5:11pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/11 "2025-06-24T17:11:51Z")
I honestly don’t know what that means. As far as I know, I’ve never had one. ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [June 24, 2025, 5:36pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/12 "2025-06-24T17:36:20Z")
Then I recommend asking further in the Unraid - Plex forum. All indications are you’ve run out of virtual memory or threads. I highly doubt you’ve run out of threads. ---
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 24, 2025, 5:40pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/13 "2025-06-24T17:40:58Z")
I’ve started a thread here: [https://forums.unraid.net/topic/191460-issues-with-plex-constantly-full-library-scanning/](https://forums.unraid.net/topic/191460-issues-with-plex-constantly-full-library-scanning/) Not sure if they’ll know what to do with this info. Did I word it correctly? ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [June 24, 2025, 5:50pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/14 "2025-06-24T17:50:55Z")
That was good. I replied as well. ---
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 24, 2025, 9:05pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/15 "2025-06-24T21:05:20Z")
So I went ahead and stopped all containers but Plex and all was fine. Slowly introduced each container and found the problem container. It was Soulseek. I have never had problems in the many years I’ve used, but sure enough as soon as I ran it, a library scan would trigger. Deleted and installed more modern container/app version “slskd” and we’re all good! ---
**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\ **Post date:** [June 24, 2025, 10:07pm UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/16 "2025-06-24T22:07:22Z")
Confirmed , not a Plex problem? Thanks for updating us. Please mark solved appropriately. ---
**Author:** ![phishyphun](https://avatars.discourse-cdn.com/v4/letter/p/a88e4f/32.png) [@phishyphun](https://forums.plex.tv/u/phishyphun)\ **Post date:** [June 25, 2025, 2:24am UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/17 "2025-06-25T02:24:17Z")
Confirmed not a Plex problem. Thanks for your help! ---
**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\ **Post date:** [September 23, 2025, 2:24am UTC](https://forums.plex.tv/t/plex-constantly-full-library-scanning/923970/18 "2025-09-23T02:24:36Z")
This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.