Description of problem:
When generating a custom report template that is basically collecting facts, setting properly the timeout to "-1", after 15 min we can see the error "Error: 502 Bad Gateway".

After a lot of different settings, tuning and tricks, the behavior is still the same.

Version-Release number of selected component (if applicable):
6.11

How reproducible:
100%

Steps to Reproduce:
1. Create the custom report template with the content below
2. Generate the report template, via webUI or hammer
3.

Actual results:
after 15 min, we can see the error

Expected results:
Generate the report with no issues

Additional info: