[2.4.0] Checkmk Werk 17080 created: Hanging background jobs/frozen site

[//]: # (werk v2) # Hanging background jobs/frozen site key | value ---------- | --- date | 2024-06-26T12:45:00+00:00 version | 2.4.0b1 class | fix edition | cee component | multisite level | 1 compatible | yes Background jobs could previously hang without ever finishing under the wrong conditions. This could lead to the entire site freezing if the job had acquired crucial file locks (i.e. a lock on licensing files). This is usually accompanied by the error ``` Bad file descriptor ``` in the logs.