I'm not really well versed in Foreman, so, if I need to provide more detail, happy to do so, but I may need guidance.

I upgraded from 2.1 to 2.2 a couple of weeks ago. CPU usage is WAY higher for me, between ruby and postgres, to the point that I had to go from 2 to 4 CPUs on the CentOS7 VM running foreman. I didn't have time to dig into why.

I don't do any provisioning from foreman. All I use it for is to collect reports/facts from puppet. It's been running and seems okay, but that extra CPU made me wonder, so I finally looked.

production.log is getting spammed with tracebacks:

2020-11-21T22:36:30 [I|app|7b7cb68d] Started POST "/api/hosts/facts" for 10.58.75.23 at 2020-11-21 22:36:30 +0000
2020-11-21T22:36:30 [I|app|7b7cb68d] Processing by Api::V2::HostsController#facts as JSON
2020-11-21T22:36:30 [I|app|7b7cb68d]   Parameters: {"facts"=>"[FILTERED]", "name"=>"REDACTEDHOSTNAME", "certname"=>"REDACTEDHOSTNAME", "apiv"=>"v2", "host"=>{"certname"=>"REDACTEDHOSTNAME", "name"=>"REDACTEDHOSTNAME"}}
2020-11-21T22:36:31 [I|app|7b7cb68d] Import facts for 'REDACTEDHOSTNAME' completed. Added: 5, Updated: 20, Deleted 0 facts
2020-11-21T22:36:31 [W|app|7b7cb68d] Action failed
2020-11-21T22:36:31 [I|app|7b7cb68d] Backtrace for 'Action failed' error (NoMethodError): undefined method `without_orchestration' for #<Host::Managed:0x00007f4834768a80>
 7b7cb68d | Did you mean?  without_auditing
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activemodel-6.0.3.1/lib/active_model/attribute_methods.rb:432:in `method_missing'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/audited-4.9.0/lib/audited/auditor.rb:99:in `method_missing'
 7b7cb68d | /usr/share/foreman/app/services/host_fact_importer.rb:47:in `skipping_orchestration'
 7b7cb68d | /usr/share/foreman/app/services/host_fact_importer.rb:30:in `import_facts'
 7b7cb68d | /usr/share/foreman/app/controllers/api/v2/hosts_controller.rb:306:in `facts'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/abstract_controller/base.rb:195:in `process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_controller/metal/rendering.rb:30:in `process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/abstract_controller/callbacks.rb:42:in `block in process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:112:in `block in run_callbacks'
 7b7cb68d | /usr/share/foreman/app/controllers/api/v2/base_controller.rb:181:in `disable_json_root'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:121:in `block in run_callbacks'
 7b7cb68d | /usr/share/foreman/app/controllers/concerns/foreman/controller/timezone.rb:10:in `set_timezone'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:121:in `block in run_callbacks'
 7b7cb68d | /usr/share/foreman/app/models/concerns/foreman/thread_session.rb:32:in `clear_thread'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:121:in `block in run_callbacks'
 7b7cb68d | /usr/share/foreman/app/controllers/concerns/foreman/controller/topbar_sweeper.rb:12:in `set_topbar_sweeper_controller'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:121:in `block in run_callbacks'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/audited-4.9.0/lib/audited/sweeper.rb:14:in `around'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:121:in `block in run_callbacks'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/audited-4.9.0/lib/audited/sweeper.rb:14:in `around'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:121:in `block in run_callbacks'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:139:in `run_callbacks'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/abstract_controller/callbacks.rb:41:in `process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_controller/metal/rescue.rb:22:in `process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_controller/metal/instrumentation.rb:33:in `block in process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/notifications.rb:180:in `block in instrument'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/notifications.rb:180:in `instrument'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_controller/metal/instrumentation.rb:32:in `process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_controller/metal/params_wrapper.rb:245:in `process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.1/lib/active_record/railties/controller_runtime.rb:27:in `process_action'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/abstract_controller/base.rb:136:in `process'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionview-6.0.3.1/lib/action_view/rendering.rb:39:in `process'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_controller/metal.rb:190:in `dispatch'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_controller/metal.rb:254:in `dispatch'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/routing/route_set.rb:50:in `dispatch'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/routing/route_set.rb:33:in `serve'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/routing/mapper.rb:18:in `block in <class:Constraints>'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/routing/mapper.rb:48:in `serve'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/journey/router.rb:49:in `block in serve'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/journey/router.rb:32:in `each'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/journey/router.rb:32:in `serve'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/routing/route_set.rb:834:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/apipie-dsl-2.2.9/lib/apipie_dsl/static_dispatcher.rb:67:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/apipie-rails-0.5.17/lib/apipie/static_dispatcher.rb:66:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/apipie-rails-0.5.17/lib/apipie/extractor/recorder.rb:137:in `call'
 7b7cb68d | /usr/share/foreman/lib/foreman/middleware/telemetry.rb:10:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/apipie-rails-0.5.17/lib/apipie/middleware/checksum_in_headers.rb:27:in `call'
 7b7cb68d | /usr/share/foreman/lib/foreman/middleware/catch_json_parse_errors.rb:9:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/tempfile_reaper.rb:15:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/etag.rb:27:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/conditional_get.rb:40:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/head.rb:12:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/http/content_security_policy.rb:18:in `call'
 7b7cb68d | /usr/share/foreman/lib/foreman/middleware/logging_context_session.rb:22:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/session/abstract/id.rb:266:in `context'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/session/abstract/id.rb:260:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/cookies.rb:648:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/callbacks.rb:101:in `run_callbacks'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/actionable_exceptions.rb:17:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/debug_exceptions.rb:32:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/railties-6.0.3.1/lib/rails/rack/logger.rb:37:in `call_app'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/railties-6.0.3.1/lib/rails/rack/logger.rb:28:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/sprockets-rails-3.2.1/lib/sprockets/rails/quiet_assets.rb:13:in `call'
 7b7cb68d | /usr/share/foreman/lib/foreman/middleware/logging_context_request.rb:11:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/request_id.rb:27:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/method_override.rb:24:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/runtime.rb:22:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.1/lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/executor.rb:14:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/static.rb:126:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/sendfile.rb:110:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/actionpack-6.0.3.1/lib/action_dispatch/middleware/host_authorization.rb:76:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/secure_headers-6.3.0/lib/secure_headers/middleware.rb:11:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/railties-6.0.3.1/lib/rails/engine.rb:527:in `call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/railties-6.0.3.1/lib/rails/railtie.rb:190:in `public_send'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/railties-6.0.3.1/lib/rails/railtie.rb:190:in `method_missing'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/urlmap.rb:74:in `block in call'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/urlmap.rb:58:in `each'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/rack-2.2.3/lib/rack/urlmap.rb:58:in `call'
 7b7cb68d | /usr/share/passenger/phusion_passenger/rack/thread_handler_extension.rb:74:in `process_request'
 7b7cb68d | /usr/share/passenger/phusion_passenger/request_handler/thread_handler.rb:141:in `accept_and_process_next_request'
 7b7cb68d | /usr/share/passenger/phusion_passenger/request_handler/thread_handler.rb:109:in `main_loop'
 7b7cb68d | /usr/share/passenger/phusion_passenger/request_handler.rb:455:in `block (3 levels) in start_threads'
 7b7cb68d | /opt/theforeman/tfm/root/usr/share/gems/gems/logging-2.2.2/lib/logging/diagnostic_context.rb:474:in `block in create_with_logging_context'
2020-11-21T22:36:31 [I|app|7b7cb68d]   Rendering api/v2/errors/custom_error.json.rabl within api/v2/layouts/error_layout
2020-11-21T22:36:31 [I|app|7b7cb68d]   Rendered api/v2/errors/custom_error.json.rabl within api/v2/layouts/error_layout (Duration: 0.2ms | Allocations: 67)
2020-11-21T22:36:31 [I|app|7b7cb68d] Completed 500 Internal Server Error in 892ms (Views: 0.8ms | ActiveRecord: 232.9ms | Allocations: 253798)

From what I see, commits 5253d21ed7d690e80e595a075d06f96d2e211e8c and 6caa9ffdba581b798bad3b89bc0f6f60621f12d7 on https://github.com/theforeman/foreman introduced 'without_orchestration', between 2.1.4 and 2.2.0, but I feel like something got missed here, and I'm not sure what.

My puppetservers are using https://github.com/theforeman/puppet-foreman version 16.0.0 and its foreman::puppetmaster class to config up reports/facts... so I don't think I'm doing anything weird or special here. "It just worked before the upgrade."