Red Hat Bugzilla – Bug 1463506
High CPU load and slow response times on the smart proxy (smart_proxy_dynflow_core process) with rex at scale
Last modified: 2017-08-15 16:33:23 EDT
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):
Steps to Reproduce:
1. run remote execution job against 1000 hosts
smart_proxy_dynflow_core getting to 100% CPU soon, response times
on smart_proxy getting to tens of seconds
Moderate CPU load, fast reponse times on smart-proxy (below second)
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.