Jellyfin was using lots of cpu and the webui was often not reachable, the problem did not disappear until restart. After a while the problem started again. Log files show the following errors in a random order, this might be a hint?
Microsoft.Data.Sqlite.SqliteException (0x80004005): SQLite Error 5: 'database is locked'.
Microsoft.AspNetCore.Server.Kestrel: As of "12/25/2025 07:36:16 +00:00", the heartbeat has been running for "00:00:01.0354972" which is longer than "00:00:01". This could be caused by thread pool starvation.
I could not identify the source of the problem for a long time. Maximum number of parallel tasks during library scans was set to 1 first. Then I started to strip features and plugins from Jellyfin to see when the problem disappeared. After removing the kodi sync queue plugin there was no issue at all.
Jellyfin 10.11.5 - docker jellyfin/jellyfin
Plugin version 15.0.0.0
Jellyfin was using lots of cpu and the webui was often not reachable, the problem did not disappear until restart. After a while the problem started again. Log files show the following errors in a random order, this might be a hint?
Microsoft.Data.Sqlite.SqliteException (0x80004005): SQLite Error 5: 'database is locked'.
Microsoft.AspNetCore.Server.Kestrel: As of "12/25/2025 07:36:16 +00:00", the heartbeat has been running for "00:00:01.0354972" which is longer than "00:00:01". This could be caused by thread pool starvation.
I could not identify the source of the problem for a long time. Maximum number of parallel tasks during library scans was set to 1 first. Then I started to strip features and plugins from Jellyfin to see when the problem disappeared. After removing the kodi sync queue plugin there was no issue at all.
Jellyfin 10.11.5 - docker jellyfin/jellyfin
Plugin version 15.0.0.0