Content view publish hangs

Problem:
Content view publish tasks almost always hang - so far the only way to fix this is to reboot the Foreman server. Restarting the services doesn’t seem to work.

Expected outcome:
Content view should publish without hanging and we shouldn’t need to reboot at least once per week.

Foreman and Proxy versions:
2.21

Foreman and Proxy plugin versions:
Installed Packages

candlepin-3.1.22-1.el7.noarch
candlepin-selinux-3.1.22-1.el7.noarch
foreman-2.2.1-1.el7.noarch
foreman-cli-2.2.1-1.el7.noarch
foreman-debug-2.2.1-1.el7.noarch
foreman-dynflow-sidekiq-2.2.1-1.el7.noarch
foreman-installer-2.2.1-1.el7.noarch
foreman-installer-katello-2.2.1-1.el7.noarch
foreman-libvirt-2.2.1-1.el7.noarch
foreman-ovirt-2.2.1-1.el7.noarch
foreman-postgresql-2.2.1-1.el7.noarch
foreman-proxy-2.2.1-1.el7.noarch
foreman-release-2.2.1-1.el7.noarch
foreman-release-scl-7-3.el7.noarch
foreman-selinux-2.2.1-1.el7.noarch
foreman-service-2.2.1-1.el7.noarch
katello-3.17.1-1.el7.noarch
katello-certs-tools-2.7.1-2.el7.noarch
katello-client-bootstrap-1.7.5-1.el7.noarch
katello-common-3.17.1-1.el7.noarch
katello-debug-3.17.1-1.el7.noarch
katello-default-ca-1.0-1.noarch
katello-repos-3.17.1-1.el7.noarch
katello-selinux-3.4.0-1.el7.noarch
katello-server-ca-1.0-1.noarch
katello-service-3.14.1-1.el7.noarch
pulp-admin-client-2.21.4-2.el7.noarch
pulp-client-1.0-1.noarch
pulp-deb-plugins-1.10.2-1.el7.noarch
pulp-docker-plugins-3.2.8-1.el7.noarch
pulp-katello-1.0.3-1.el7.noarch
pulp-puppet-plugins-2.21.4-1.el7.noarch
pulp-puppet-tools-2.21.4-1.el7.noarch
pulp-rpm-admin-extensions-2.21.4-2.el7.noarch
pulp-rpm-plugins-2.21.4-2.el7.noarch
pulp-selinux-2.21.4-2.el7.noarch
pulp-server-2.21.4-2.el7.noarch
pulpcore-selinux-1.2.3-2.el7.x86_64
python-gofer-qpid-2.12.5-3.el7.noarch
python-pulp-bindings-2.21.4-2.el7.noarch
python-pulp-client-lib-2.21.4-2.el7.noarch
python-pulp-common-2.21.4-2.el7.noarch
python-pulp-deb-common-1.10.2-1.el7.noarch
python-pulp-docker-common-3.2.8-1.el7.noarch
python-pulp-oid_validation-2.21.4-2.el7.noarch
python-pulp-puppet-common-2.21.4-1.el7.noarch
python-pulp-repoauth-2.21.4-2.el7.noarch
python-pulp-rpm-common-2.21.4-2.el7.noarch
python-pulp-streamer-2.21.4-2.el7.noarch
python2-qpid-1.37.0-5.el7.noarch
python2-qpid-proton-0.32.0-2.el7.x86_64
python2-qpid-qmf-1.39.0-1.el7.x86_64
python3-pulp-2to3-migration-0.5.1-1.el7.noarch
python3-pulp-certguard-1.0.3-1.el7.noarch
python3-pulp-container-2.1.0-1.el7.noarch
python3-pulp-file-1.3.0-1.el7.noarch
python3-pulp-rpm-3.7.0-1.el7.noarch
python3-pulpcore-3.7.3-1.el7.noarch
qpid-cpp-client-1.39.0-1.el7.x86_64
qpid-cpp-client-devel-1.39.0-1.el7.x86_64
qpid-cpp-server-1.39.0-1.el7.x86_64
qpid-cpp-server-linearstore-1.39.0-1.el7.x86_64
qpid-dispatch-router-1.14.0-1.el7.x86_64
qpid-proton-c-0.32.0-2.el7.x86_64
qpid-qmf-1.39.0-1.el7.x86_64
qpid-tools-1.39.0-1.el7.noarch
rubygem-foreman_maintain-0.6.13-1.el7.noarch
tfm-rubygem-actioncable-6.0.3.1-1.el7.noarch
tfm-rubygem-actionmailbox-6.0.3.1-1.el7.noarch
tfm-rubygem-actionmailer-6.0.3.1-1.el7.noarch
tfm-rubygem-actionpack-6.0.3.1-1.el7.noarch
tfm-rubygem-actiontext-6.0.3.1-1.el7.noarch
tfm-rubygem-actionview-6.0.3.1-1.el7.noarch
tfm-rubygem-activejob-6.0.3.1-1.el7.noarch
tfm-rubygem-activemodel-6.0.3.1-1.el7.noarch
tfm-rubygem-activerecord-6.0.3.1-1.el7.noarch
tfm-rubygem-activerecord-import-1.0.0-2.el7.noarch
tfm-rubygem-activerecord-session_store-1.1.1-4.el7.noarch
tfm-rubygem-activestorage-6.0.3.1-1.el7.noarch
tfm-rubygem-activesupport-6.0.3.1-1.el7.noarch
tfm-rubygem-addressable-2.6.0-2.el7.noarch
tfm-rubygem-algebrick-0.7.3-7.el7.noarch
tfm-rubygem-amazing_print-1.1.0-1.el7.noarch
tfm-rubygem-ancestry-3.0.7-1.el7.noarch
tfm-rubygem-anemone-0.7.2-17.el7.noarch
tfm-rubygem-angular-rails-templates-1.1.0-1.el7.noarch
tfm-rubygem-ansi-1.5.0-2.el7.noarch
tfm-rubygem-apipie-bindings-0.4.0-1.el7.noarch
tfm-rubygem-apipie-dsl-2.2.9-1.el7.noarch
tfm-rubygem-apipie-params-0.0.5-4.el7.noarch
tfm-rubygem-apipie-rails-0.5.17-3.el7.noarch
tfm-rubygem-arel-9.0.0-4.el7.noarch
tfm-rubygem-audited-4.9.0-3.el7.noarch
tfm-rubygem-awesome_print-1.8.0-5.el7.noarch
tfm-rubygem-bcrypt-3.1.12-3.el7.x86_64
tfm-rubygem-builder-3.2.4-1.el7.noarch
tfm-rubygem-bundler_ext-0.4.1-5.el7.noarch
tfm-rubygem-clamp-1.1.2-6.el7.noarch
tfm-rubygem-coffee-rails-5.0.0-1.el7.noarch
tfm-rubygem-coffee-script-2.4.1-4.el7.noarch
tfm-rubygem-coffee-script-source-1.12.2-4.el7.noarch
tfm-rubygem-concurrent-ruby-1.1.6-2.el7.noarch
tfm-rubygem-concurrent-ruby-edge-0.6.0-2.fm2_1.el7.noarch
tfm-rubygem-connection_pool-2.2.2-2.el7.noarch
tfm-rubygem-crass-1.0.6-1.el7.noarch
tfm-rubygem-css_parser-1.4.7-4.el7.noarch
tfm-rubygem-daemons-1.2.3-6.el7.noarch
tfm-rubygem-deacon-1.0.0-4.el7.noarch
tfm-rubygem-deep_cloneable-3.0.0-3.el7.noarch
tfm-rubygem-deface-1.5.3-2.el7.noarch
tfm-rubygem-domain_name-0.5.20160310-4.el7.noarch
tfm-rubygem-dynflow-1.4.7-1.fm2_2.el7.noarch
tfm-rubygem-erubi-1.9.0-1.el7.noarch
tfm-rubygem-ethon-0.12.0-1.el7.noarch
tfm-rubygem-excon-0.76.0-1.el7.noarch
tfm-rubygem-execjs-2.7.0-4.el7.noarch
tfm-rubygem-facter-2.4.0-7.el7.x86_64
tfm-rubygem-faraday-0.15.4-2.el7.noarch
tfm-rubygem-fast_gettext-1.4.1-4.el7.noarch
tfm-rubygem-ffi-1.12.2-1.el7.x86_64
tfm-rubygem-fog-core-2.1.0-3.el7.noarch
tfm-rubygem-fog-json-1.2.0-3.el7.noarch
tfm-rubygem-fog-libvirt-0.7.0-2.el7.noarch
tfm-rubygem-fog-ovirt-1.2.5-1.el7.noarch
tfm-rubygem-fog-vsphere-3.4.0-1.el7.noarch
tfm-rubygem-fog-xml-0.1.2-8.el7.noarch
tfm-rubygem-foreman-tasks-3.0.1-1.fm2_2.el7.noarch
tfm-rubygem-foreman-tasks-core-0.3.4-1.fm2_1.el7.noarch
tfm-rubygem-foreman_ansible-6.0.0-1.fm2_2.el7.noarch
tfm-rubygem-foreman_ansible_core-3.0.4-1.fm2_2.el7.noarch
tfm-rubygem-foreman_remote_execution-4.1.0-1.fm2_2.el7.noarch
tfm-rubygem-foreman_remote_execution_core-1.3.1-1.el7.noarch
tfm-rubygem-formatador-0.2.1-12.el7.noarch
tfm-rubygem-friendly_id-5.3.0-1.el7.noarch
tfm-rubygem-fx-0.5.0-1.el7.noarch
tfm-rubygem-get_process_mem-0.2.1-4.el7.noarch
tfm-rubygem-gettext_i18n_rails-1.8.0-2.el7.noarch
tfm-rubygem-gitlab-sidekiq-fetcher-0.6.0-1.el7.noarch
tfm-rubygem-globalid-0.4.2-1.el7.noarch
tfm-rubygem-graphql-1.8.14-2.el7.noarch
tfm-rubygem-graphql-batch-0.3.10-2.el7.noarch
tfm-rubygem-gssapi-1.2.0-7.el7.noarch
tfm-rubygem-hammer_cli-2.2.1-1.el7.noarch
tfm-rubygem-hammer_cli_foreman-2.2.0-1.el7.noarch
tfm-rubygem-hammer_cli_foreman_bootdisk-0.3.0-1.el7.noarch
tfm-rubygem-hammer_cli_foreman_docker-0.0.7-1.el7.noarch
tfm-rubygem-hammer_cli_foreman_tasks-0.0.15-1.fm2_2.el7.noarch
tfm-rubygem-hammer_cli_katello-0.23.2-1.el7.noarch
tfm-rubygem-hashie-3.6.0-2.el7.noarch
tfm-rubygem-highline-1.7.8-5.el7.noarch
tfm-rubygem-http-cookie-1.0.2-4.el7.noarch
tfm-rubygem-i18n-1.8.2-1.el7.noarch
tfm-rubygem-ipaddress-0.8.0-12.el7.noarch
tfm-rubygem-jwt-2.2.1-2.el7.noarch
tfm-rubygem-kafo-5.0.1-1.el7.noarch
tfm-rubygem-kafo_parsers-1.1.0-3.el7.noarch
tfm-rubygem-kafo_wizards-0.0.1-4.el7.noarch
tfm-rubygem-katello-3.17.1-1.el7.noarch
tfm-rubygem-ldap_fluff-0.4.7-5.el7.noarch
tfm-rubygem-little-plugger-1.1.4-2.el7.noarch
tfm-rubygem-locale-2.0.9-14.el7.noarch
tfm-rubygem-logging-2.2.2-5.el7.noarch
tfm-rubygem-loofah-2.4.0-1.el7.noarch
tfm-rubygem-mail-2.7.1-1.el7.noarch
tfm-rubygem-marcel-0.3.3-1.el7.noarch
tfm-rubygem-method_source-0.9.2-1.el7.noarch
tfm-rubygem-mime-types-3.2.2-4.el7.noarch
tfm-rubygem-mime-types-data-3.2018.0812-4.el7.noarch
tfm-rubygem-mimemagic-0.3.5-1.el7.noarch
tfm-rubygem-mini_mime-1.0.2-1.el7.noarch
tfm-rubygem-mini_portile2-2.4.0-1.el7.noarch
tfm-rubygem-multi_json-1.14.1-2.el7.noarch
tfm-rubygem-multipart-post-2.0.0-2.el7.noarch
tfm-rubygem-mustermann-1.0.2-4.el7.noarch
tfm-rubygem-net-ldap-0.16.1-2.el7.noarch
tfm-rubygem-net-ping-2.0.1-4.el7.noarch
tfm-rubygem-net-scp-1.2.1-4.el7.noarch
tfm-rubygem-net-ssh-4.2.0-2.el7.noarch
tfm-rubygem-netrc-0.11.0-5.el7.noarch
tfm-rubygem-nio4r-2.5.2-1.el7.x86_64
tfm-rubygem-nokogiri-1.10.9-1.el7.x86_64
tfm-rubygem-oauth-0.5.4-4.el7.noarch
tfm-rubygem-optimist-3.0.0-2.el7.noarch
tfm-rubygem-ovirt-engine-sdk-4.3.0-1.el7.x86_64
tfm-rubygem-parse-cron-0.1.4-4.fm2_1.el7.noarch
tfm-rubygem-passenger-4.0.18-10.13.el7.x86_64
tfm-rubygem-passenger-native-4.0.18-10.13.el7.x86_64
tfm-rubygem-passenger-native-libs-4.0.18-10.13.el7.x86_64
tfm-rubygem-pg-1.1.4-3.el7.x86_64
tfm-rubygem-polyglot-0.3.5-2.el7.noarch
tfm-rubygem-powerbar-2.0.1-2.el7.noarch
tfm-rubygem-promise.rb-0.7.4-2.el7.noarch
tfm-rubygem-public_suffix-3.0.3-2.el7.noarch
tfm-rubygem-pulp_2to3_migration_client-0.5.0-1.el7.noarch
tfm-rubygem-pulp_ansible_client-0.3.0-1.el7.noarch
tfm-rubygem-pulp_certguard_client-1.0.2-1.el7.noarch
tfm-rubygem-pulp_container_client-2.0.0-1.el7.noarch
tfm-rubygem-pulp_docker_client-4.0.0b6.dev01562331743-1.el7.noarch
tfm-rubygem-pulp_file_client-1.2.0-1.el7.noarch
tfm-rubygem-pulp_rpm_client-3.6.2-1.el7.noarch
tfm-rubygem-pulpcore_client-3.6.0-1.el7.noarch
tfm-rubygem-puma-4.3.3-4.el7.x86_64
tfm-rubygem-qpid_messaging-1.38.0-1.el7.x86_64
tfm-rubygem-rabl-0.14.3-1.el7.noarch
tfm-rubygem-rack-2.2.3-1.el7.noarch
tfm-rubygem-rack-cors-1.0.2-2.el7.noarch
tfm-rubygem-rack-jsonp-1.3.1-9.el7.noarch
tfm-rubygem-rack-protection-2.0.3-4.el7.noarch
tfm-rubygem-rack-test-1.1.0-4.el7.noarch
tfm-rubygem-rails-6.0.3.1-1.el7.noarch
tfm-rubygem-rails-dom-testing-2.0.3-6.el7.noarch
tfm-rubygem-rails-html-sanitizer-1.3.0-1.el7.noarch
tfm-rubygem-rails-i18n-6.0.0-2.el7.noarch
tfm-rubygem-railties-6.0.3.1-1.el7.noarch
tfm-rubygem-rainbow-2.2.1-3.el7.noarch
tfm-rubygem-rake-compiler-1.0.7-3.el7.noarch
tfm-rubygem-rb-inotify-0.9.7-5.el7.noarch
tfm-rubygem-rbovirt-0.1.7-4.el7.noarch
tfm-rubygem-rbvmomi-2.2.0-3.el7.noarch
tfm-rubygem-record_tag_helper-1.0.1-3.el7.noarch
tfm-rubygem-redis-4.1.2-2.el7.noarch
tfm-rubygem-responders-3.0.0-3.el7.noarch
tfm-rubygem-rest-client-2.0.2-3.el7.noarch
tfm-rubygem-rkerberos-0.1.5-18.el7.x86_64
tfm-rubygem-roadie-3.4.0-3.el7.noarch
tfm-rubygem-roadie-rails-2.1.1-2.el7.noarch
tfm-rubygem-robotex-1.0.0-21.el7.noarch
tfm-rubygem-rsec-0.4.3-4.el7.noarch
tfm-rubygem-ruby-libvirt-0.7.1-1.el7.x86_64
tfm-rubygem-ruby2ruby-2.4.2-3.el7.noarch
tfm-rubygem-ruby_parser-3.10.1-3.el7.noarch
tfm-rubygem-rubyipmi-0.10.0-6.el7.noarch
tfm-rubygem-runcible-2.13.1-1.el7.noarch
tfm-rubygem-safemode-1.3.5-3.el7.noarch
tfm-rubygem-scoped_search-4.1.9-1.el7.noarch
tfm-rubygem-secure_headers-6.3.0-2.el7.noarch
tfm-rubygem-sequel-5.7.1-3.el7.noarch
tfm-rubygem-sexp_processor-4.10.0-6.el7.noarch
tfm-rubygem-sidekiq-5.2.7-3.el7.noarch
tfm-rubygem-sinatra-2.0.3-4.el7.noarch
tfm-rubygem-smart_proxy_ansible-3.0.1-6.fm2_2.el7.noarch
tfm-rubygem-smart_proxy_dynflow-0.2.4-6.fm2_2.el7.noarch
tfm-rubygem-smart_proxy_dynflow_core-0.2.6-1.fm2_2.el7.noarch
tfm-rubygem-smart_proxy_pulp-2.1.0-3.fm2_2.el7.noarch
tfm-rubygem-smart_proxy_remote_execution_ssh-0.3.0-4.fm2_2.el7.noarch
tfm-rubygem-sprockets-4.0.2-1.el7.noarch
tfm-rubygem-sprockets-rails-3.2.1-6.el7.noarch
tfm-rubygem-sqlite3-1.3.13-6.el7.x86_64
tfm-rubygem-sshkey-1.9.0-4.el7.noarch
tfm-rubygem-statsd-instrument-2.1.4-3.el7.noarch
tfm-rubygem-stomp-1.4.9-1.el7.noarch
tfm-rubygem-thor-1.0.1-2.el7.noarch
tfm-rubygem-thread_safe-0.3.6-5.el7.noarch
tfm-rubygem-tilt-2.0.8-4.el7.noarch
tfm-rubygem-typhoeus-1.3.1-1.el7.noarch
tfm-rubygem-tzinfo-1.2.6-1.el7.noarch
tfm-rubygem-unf-0.1.3-8.el7.noarch
tfm-rubygem-unf_ext-0.0.7.2-3.el7.x86_64
tfm-rubygem-unicode-0.4.4.4-3.el7.x86_64
tfm-rubygem-unicode-display_width-1.0.5-4.el7.noarch
tfm-rubygem-validates_lengths_from_database-0.5.0-7.el7.noarch
tfm-rubygem-webpack-rails-0.9.8-5.el7.noarch
tfm-rubygem-websocket-driver-0.7.1-1.el7.x86_64
tfm-rubygem-websocket-extensions-0.1.5-1.el7.noarch
tfm-rubygem-will_paginate-3.1.7-3.el7.noarch
tfm-rubygem-x-editable-rails-1.5.5-5.el7.noarch
tfm-rubygem-xmlrpc-0.3.0-2.el7.noarch
tfm-rubygem-zeitwerk-2.2.2-1.el7.noarch
tfm-runtime-6.1-3.el7.x86_64

Distribution and version:
CentOS 7.9.2009

Other relevant data:
I don’t see anything in the Foreman production log that seems relevant.
The messages file is printing this all the time the publish task is trying to run.

> Feb  2 10:51:39 ukwdr-foreman1 dynflow-sidekiq@orchestrator: 2021-02-02T10:51:39.930Z 1327 TID-2v1ji3 Dynflow::Executors::Sidekiq::OrchestratorJobs::WorkerDone JID-26ae306ccd9d4f8c6b37172b INFO: start
> Feb  2 10:51:39 ukwdr-foreman1 dynflow-sidekiq@orchestrator: 2021-02-02T10:51:39.932Z 1327 TID-2v1ji3 Dynflow::Executors::Sidekiq::OrchestratorJobs::WorkerDone JID-26ae306ccd9d4f8c6b37172b INFO: done: 0.002 sec
> Feb  2 10:51:41 ukwdr-foreman1 dynflow-sidekiq@worker-hosts-queue: 2021-02-02T10:51:41.295Z 1325 TID-2yg8t1 Dynflow::Executors::Sidekiq::WorkerJobs::PerformWork JID-85ae96d2cb5bb3080d296a91 INFO: start
> Feb  2 10:51:41 ukwdr-foreman1 dynflow-sidekiq@worker-hosts-queue: 2021-02-02T10:51:41.375Z 1325 TID-2yg8t1 Dynflow::Executors::Sidekiq::WorkerJobs::PerformWork JID-85ae96d2cb5bb3080d296a91 INFO: done: 0.08 sec
> Feb  2 10:51:41 ukwdr-foreman1 dynflow-sidekiq@orchestrator: 2021-02-02T10:51:41.377Z 1327 TID-2v1ji3 Dynflow::Executors::Sidekiq::OrchestratorJobs::WorkerDone JID-8b6a20cbc8c3c83b5eb667a6 INFO: start
> Feb  2 10:51:41 ukwdr-foreman1 dynflow-sidekiq@orchestrator: 2021-02-02T10:51:41.378Z 1327 TID-2v1ji3 Dynflow::Executors::Sidekiq::OrchestratorJobs::WorkerDone JID-8b6a20cbc8c3c83b5eb667a6 INFO: done: 0.002 sec
> Feb  2 10:51:42 ukwdr-foreman1 dynflow-sidekiq@worker-hosts-queue: 2021-02-02T10:51:42.096Z 1325 TID-2ygall Dynflow::Executors::Sidekiq::WorkerJobs::PerformWork JID-c9efafa39311c70f193531b8 INFO: start
> Feb  2 10:51:42 ukwdr-foreman1 dynflow-sidekiq@worker-hosts-queue: 2021-02-02T10:51:42.189Z 1325 TID-2ygall Dynflow::Executors::Sidekiq::WorkerJobs::PerformWork JID-c9efafa39311c70f193531b8 INFO: done: 0.093 sec
> Feb  2 10:51:42 ukwdr-foreman1 dynflow-sidekiq@orchestrator: 2021-02-02T10:51:42.191Z 1327 TID-2v1ji3 Dynflow::Executors::Sidekiq::OrchestratorJobs::WorkerDone JID-68a601fba835b78149d8ce78 INFO: start
> Feb  2 10:51:42 ukwdr-foreman1 dynflow-sidekiq@orchestrator: 2021-02-02T10:51:42.194Z 1327 TID-2v1ji3 Dynflow::Executors::Sidekiq::OrchestratorJobs::WorkerDone JID-68a601fba835b78149d8ce78 INFO: done: 0.003 sec

Please let me know if there is anything I can run to get some more useful info.

Thanks in advance for any help.

Hi - this still happens regularly…any ideas on how I can fix it?
The content view publish that is currently hanging shows this error in the task view.

Errors:
undefined method []' for nil:NilClassundefined method ’ for nil:NilClassundefined method []' for nil:NilClassundefined method ’ for nil:NilClass

Hi @robb thanks for letting us know, do you have a traceback for that error?

Hi - i’m afraid I don’t.
Content view publish tasks were hanging this morning and holding up hundreds of other tasks.
I have been able to cancel the content view publish tasks but the other tasks still don’t seem to be running.
How can I find out what is holding everything up?