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Description of problem:
A puppet client run triggers two HostsController#externalNodes requests. It was observed that processing such a request is sometimes very inefficient, taking >2s on average in a real production.

Lzap++ did an analysis in optimizing the code, as summarized in https://github.com/theforeman/foreman/pull/7599 . Based on the scope of code changes, the performance boost can be 9-14times.


Please backport it to 6.7 and add to 6.8.


Version-Release number of selected component (if applicable):
Sat 6.7


How reproducible:
100% on a scaled system

Steps to Reproduce:
1. See generic reproducer (plus particular one for upstream (only?) in https://github.com/theforeman/foreman/pull/7599


Actual results:


Expected results:


Additional info:

Upstream bug assigned to lzap

Upstream bug assigned to lzap

Moving this bug to POST for triage into Satellite 6 since the upstream issue https://projects.theforeman.org/issues/29582 has been resolved.

While the linked issue was merged (and is a good improvement), I've filed https://tickets.puppetlabs.com/browse/SERVER-2818 since Puppet is supposed to only call the ENC script once but calls it twice. Fixing this would greatly reduce the number of calls coming in.

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 (Important: Satellite 6.8 release), 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-2020:4366