3.15.0

Improvements

Max workers per server

Added maxworkers config to set the max amount of workers per server. If not set or 0 it will behave as before, but with this > 0 it will assert that a cronjob cannot start more workers than currently running. It includes workers that died improperly to ensure this cannot bypass bottleneck situations where workers got marked as "to be stopped" but are still running some background script for minutes more.

Based on your memory and the jobs you are running you can estimate how many workers in parallel are the maximum you want to allow. This helps to prevent "Fatal error: Out of Memory" situations or other long-running jobs in parallel overloading your server (load >> 1).

Import/Export

It is now easier to export failed jobs and import them locally to re-run there for debugging.
You can import them as-is, or auto-resetted.