[PROBLEM] library update in progress

[TheOldPresbyope]

I have the same log

20200713 010030 worker: Job update_library
20200713 010031 thmcache: Start
20200713 010031 thmcache: Scanning: NAS, SDCARD, UPNP
   some messages about incorrect ID3v2 tags
20200713 175750 thmcache: Done: 28917 album dirs processed
20200713 232509 worker: Job update_library done

But I can't start update again

As Tim said, the thmcache and MPD update processes run in parallel. So, in the above, thmcache took nearly 17 hours to complete and MPD took about 22-1/2 hours.

These numbers make me suspicious of your "music library on PC". What exactly is this? OS, server, protocol? For that matter what are the different track file formats involved?

Here's a quick test from the command line of the communications with your library. This test runs the first step of moOde 6.6.0's thumbnail caching process, simply scanning all the directories of moOde's known music sources, looking for music tracks.

Code:

time /var/www/command/listall.sh > /dev/null

For the player I cited earlier, named moodeLR, it took ~5.5 seconds to find the 6980 tracks in 600+ directories.

Code:

pi@moodeLR:~ $ time /var/www/command/listall.sh>/dev/null

real    0m5.473s
user    0m0.224s
sys    0m0.328s

You can run this test even now. It doesn't force an update or regeneration.

Regards,
Kent