Description of problem:
For tuning, the default backlog option of 1024 is not large enough to handle the incoming requests. The option to tune this BACKLOG option is needed to survive updates/upgrades.

Version-Release number of selected component (if applicable):
foreman-service-2.3.1.25-2.el7sat.noarch

How reproducible:

Steps to Reproduce:
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Actual results:
BACKLOG key variable is reset with every update/reinstall of the foreman-service RPM

Expected results:
To have a custom hiera value to control this value and survive updates/upgrades

Additional info: