Scheduler out of database connections right after start

[MrGeneration]

Closing as duplicate of

Scheduler fails with "ActiveRecord::ConnectionTimeoutError: could not obtain a connection from the pool within 5.000 seconds (waited 5.000 seconds); all pooled connections were in use>"

Infos: Used Zammad version: 6.3.0 Used Zammad installation type: docker-compose Operating system: Ubuntu 22.04.4 LTS (jammy) Browser + version: Chrome 124.0.6367.201 Expected behavior: Scheduler able to finish tasks Actual behavior: Some scheduled tasks never finish (mostly Channel.stream, Sessions.jobs, but also others), showing errors in the zammad-scheduler container. Yet some tasks seem to complete just fine. (The LDAP sync and Office 365 integrations do seem to update). Monitor tab sho…