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Created attachment 1289960 [details]
Patch for  more effective refreshing of remote execution commands

Description of problem:
Due to inefficiency of the refreshing of execution, smart_proxy_dynflow_core can
get under heavy CPU load, which can eventually lead to slow response times
and bloated queues.

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


How reproducible:


Steps to Reproduce:
1. run remote execution job against 1000 hosts


Actual results:
smart_proxy_dynflow_core getting to 100% CPU soon, response times
on smart_proxy getting to tens of seconds

Expected results:
Moderate CPU load, fast reponse times on smart-proxy (below second)

Additional info:
Extracted from https://bugzilla.redhat.com/show_bug.cgi?id=1416542#c36 to have more clarity on different parts of the bug.

Created redmine issue http://projects.theforeman.org/issues/20182 from this bug

Moving to ASSIGNED as there is a PR submitted upstream.

Moving this bug to POST for triage into Satellite 6 since the upstream issue http://projects.theforeman.org/issues/20182 has been resolved.

Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA.

For information on the advisory, and where to find the updated files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2018:0336