Не работает после обновления Docker

Только что попытался обновить Docker в панели администратора Discourse. Получил ошибку, и теперь мой сайт недоступен. Я не вносил никаких изменений на сайте недавно, поэтому немного растерян и не понимаю, что произошло. Какой лучший способ восстановить работу в такой ситуации? У меня есть автоматические резервные копии Discourse в облаке. Стоит ли просто переустановить Discourse и загрузить резервную копию, или есть более простой способ исправить это?

Using message_bus 3.3.2
Using mini_racer 0.3.1
Using redis 4.2.2
Using sidekiq 6.1.2
Using mini_scheduler 0.12.2
Using mini_sql 0.3
Using mini_suffix 0.3.0
Using multi_json 1.15.0
Using multi_xml 0.6.0
Using mustache 1.1.1
Using nio4r 2.5.4
Using nokogumbo 2.0.2
Using oauth 0.5.4
Using oauth2 1.4.4
Using oj 3.10.14
Using omniauth 1.9.1
Using omniauth-oauth2 1.7.0
Using omniauth-facebook 7.0.0
Using omniauth-github 1.4.0
Using omniauth-google-oauth2 0.8.0
Using omniauth-instagram 1.3.0
Using omniauth-oauth 1.1.0
Using omniauth-twitter 1.4.0
Using sanitize 5.2.1
Using onebox 2.1.3
Using optimist 3.0.1
Using pg 1.2.3
Using pry 0.13.1
Using pry-byebug 3.9.0
Using pry-rails 0.3.9
Using puma 5.0.2
Using r2 0.2.7
Using rack-mini-profiler 2.1.0
Using rack-protection 2.1.0
Using rails_failover 0.5.7
Using rails_multisite 2.5.0
Using raindrops 0.19.1
Using rbtrace 0.4.14
Using rchardet 1.8.0
Using redis-namespace 1.8.0
Using rinku 2.0.6
Using rotp 6.2.0
Using rqrcode_core 0.1.2
Using rqrcode 1.1.2
Using rtlit 0.0.5
Using ruby-readability 0.7.0
Using rubyzip 2.3.0
Using sassc 2.0.1
Using sprockets-rails 3.2.2
Using tilt 2.0.10
Using sassc-rails 2.1.2
Using seed-fu 2.3.9
Using sshkey 2.0.0
Using stackprof 0.2.15
Using uglifier 4.2.0
Using unf_ext 0.0.7.7
Using unf 0.1.4
Using unicorn 5.7.0
Using webpush 1.0.0
Using xorcist 1.1.2
Bundle complete! 124 Gemfile dependencies, 161 gems now installed.
Gems in the groups test and development were not installed.
Bundled gems are installed into `./vendor/bundle`
$ bundle exec rake plugin:pull_compatible_all
discourse-locations is already at latest compatible version
discourse-ratings is already at latest compatible version
discourse-topic-previews is already at latest compatible version
discourse-affiliate is already at latest compatible version
discourse-adplugin is already at latest compatible version
discourse-akismet is already at latest compatible version
discourse-subscriptions is already at latest compatible version
discourse-sitemap is already at latest compatible version
docker_manager is already at latest compatible version
$ SKIP_POST_DEPLOYMENT_MIGRATIONS=1 bundle exec rake multisite:migrate
Multisite migrator is running using 1 threads

Migrating default
Seeding default
*** Bundling assets. This will take a while *** 
$ RUBY_GC_MALLOC_LIMIT_MAX=20971520 RUBY_GC_OLDMALLOC_LIMIT_MAX=20971520 RUBY_GC_HEAP_GROWTH_MAX_SLOTS=50000 RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR=0.9  bundle exec rake assets:precompile
Purging temp files
Bundling assets
I, [2020-11-06T00:16:24.441035 #2323256]  INFO -- : Writing /var/www/discourse/public/assets/locales/ro-eca9e9f1db0dabc6cc21151ac965087420e53357ffe195d0ce0857f74e4c59b3.js
Killed
Docker Manager: FAILED TO UPGRADE
#<RuntimeError: RuntimeError>
/var/www/discourse/plugins/docker_manager/lib/docker_manager/upgrader.rb:178:in `run'
/var/www/discourse/plugins/docker_manager/lib/docker_manager/upgrader.rb:86:in `upgrade'
/var/www/discourse/plugins/docker_manager/app/controllers/docker_manager/admin_controller.rb:95:in `block in upgrade'
/var/www/discourse/plugins/docker_manager/app/controllers/docker_manager/admin_controller.rb:91:in `fork'
/var/www/discourse/plugins/docker_manager/app/controllers/docker_manager/admin_controller.rb:91:in `upgrade'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/abstract_controller/base.rb:195:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/rendering.rb:30:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/abstract_controller/callbacks.rb:42:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/callbacks.rb:135:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/abstract_controller/callbacks.rb:41:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/rescue.rb:22:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/instrumentation.rb:33:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/notifications.rb:180:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/notifications.rb:180:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/instrumentation.rb:32:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/params_wrapper.rb:245:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.3.3/lib/active_record/railties/controller_runtime.rb:27:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/abstract_controller/base.rb:136:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionview-6.0.3.3/lib/action_view/rendering.rb:39:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-2.1.0/lib/mini_profiler/profiling_methods.rb:78:in `block in profile_method'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal.rb:190:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal.rb:254:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/route_set.rb:50:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/route_set.rb:33:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/mapper.rb:18:in `block in <class:Constraints>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/mapper.rb:48:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:49:in `block in serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:32:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:32:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/route_set.rb:834:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/engine.rb:527:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/mapper.rb:19:in `block in <class:Constraints>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/mapper.rb:48:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:49:in `block in serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:32:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:32:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/route_set.rb:834:in `call'
/var/www/discourse/lib/middleware/omniauth_bypass_middleware.rb:68:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/tempfile_reaper.rb:15:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/conditional_get.rb:40:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/head.rb:12:in `call'
/var/www/discourse/lib/content_security_policy/middleware.rb:12:in `call'
/var/www/discourse/lib/middleware/anonymous_cache.rb:336:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/session/abstract/id.rb:266:in `context'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/session/abstract/id.rb:260:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/cookies.rb:648:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/callbacks.rb:101:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/actionable_exceptions.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/debug_exceptions.rb:32:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/logster-2.9.4/lib/logster/middleware/reporter.rb:43:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/rack/logger.rb:37:in `call_app'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/rack/logger.rb:28:in `call'
/var/www/discourse/config/initializers/100-quiet_logger.rb:23:in `call'
/var/www/discourse/config/initializers/100-silence_logger.rb:31:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/request_id.rb:27:in `call'
/var/www/discourse/lib/middleware/enforce_hostname.rb:22:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/method_override.rb:24:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/executor.rb:14:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/sendfile.rb:110:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/host_authorization.rb:76:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-2.1.0/lib/mini_profiler/profiler.rb:235:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/message_bus-3.3.2/lib/message_bus/rack/middleware.rb:61:in `call'
/var/www/discourse/lib/middleware/request_tracker.rb:176:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/engine.rb:527:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/urlmap.rb:74:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/urlmap.rb:58:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/urlmap.rb:58:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:632:in `process_client'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:728:in `worker_loop'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:548:in `spawn_missing_workers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:144:in `start'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/bin/unicorn:128:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/bin/unicorn:23:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/bin/unicorn:23:in `<main>'
Spinning up 1 Unicorn worker(s) that were stopped initially
********************************************************
*** Please be patient, next steps might take a while ***
********************************************************
ABORTING, you do not have enough unicorn workers running
Docker Manager: FAILED TO UPGRADE
#<RuntimeError: Not enough workers>
/var/www/discourse/plugins/docker_manager/lib/docker_manager/upgrader.rb:40:in `upgrade'
/var/www/discourse/plugins/docker_manager/app/controllers/docker_manager/admin_controller.rb:95:in `block in upgrade'
/var/www/discourse/plugins/docker_manager/app/controllers/docker_manager/admin_controller.rb:91:in `fork'
/var/www/discourse/plugins/docker_manager/app/controllers/docker_manager/admin_controller.rb:91:in `upgrade'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/abstract_controller/base.rb:195:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/rendering.rb:30:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/abstract_controller/callbacks.rb:42:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/callbacks.rb:135:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/abstract_controller/callbacks.rb:41:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/rescue.rb:22:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/instrumentation.rb:33:in `block in process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/notifications.rb:180:in `block in instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/notifications.rb:180:in `instrument'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/instrumentation.rb:32:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal/params_wrapper.rb:245:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.3.3/lib/active_record/railties/controller_runtime.rb:27:in `process_action'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/abstract_controller/base.rb:136:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionview-6.0.3.3/lib/action_view/rendering.rb:39:in `process'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-2.1.0/lib/mini_profiler/profiling_methods.rb:78:in `block in profile_method'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal.rb:190:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_controller/metal.rb:254:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/route_set.rb:50:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/route_set.rb:33:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/mapper.rb:18:in `block in <class:Constraints>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/mapper.rb:48:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:49:in `block in serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:32:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:32:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/route_set.rb:834:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/engine.rb:527:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/mapper.rb:19:in `block in <class:Constraints>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/mapper.rb:48:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:49:in `block in serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:32:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/journey/router.rb:32:in `serve'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/routing/route_set.rb:834:in `call'
/var/www/discourse/lib/middleware/omniauth_bypass_middleware.rb:68:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/tempfile_reaper.rb:15:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/conditional_get.rb:40:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/head.rb:12:in `call'
/var/www/discourse/lib/content_security_policy/middleware.rb:12:in `call'
/var/www/discourse/lib/middleware/anonymous_cache.rb:336:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/session/abstract/id.rb:266:in `context'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/session/abstract/id.rb:260:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/cookies.rb:648:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/callbacks.rb:27:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activesupport-6.0.3.3/lib/active_support/callbacks.rb:101:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/actionable_exceptions.rb:17:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/debug_exceptions.rb:32:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/logster-2.9.4/lib/logster/middleware/reporter.rb:43:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/rack/logger.rb:37:in `call_app'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/rack/logger.rb:28:in `call'
/var/www/discourse/config/initializers/100-quiet_logger.rb:23:in `call'
/var/www/discourse/config/initializers/100-silence_logger.rb:31:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/request_id.rb:27:in `call'
/var/www/discourse/lib/middleware/enforce_hostname.rb:22:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/method_override.rb:24:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/executor.rb:14:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/sendfile.rb:110:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/actionpack-6.0.3.3/lib/action_dispatch/middleware/host_authorization.rb:76:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-mini-profiler-2.1.0/lib/mini_profiler/profiler.rb:235:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/message_bus-3.3.2/lib/message_bus/rack/middleware.rb:61:in `call'
/var/www/discourse/lib/middleware/request_tracker.rb:176:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/engine.rb:527:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/railtie.rb:190:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/railties-6.0.3.3/lib/rails/railtie.rb:190:in `method_missing'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/urlmap.rb:74:in `block in call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/urlmap.rb:58:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rack-2.2.3/lib/rack/urlmap.rb:58:in `call'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:632:in `process_client'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:728:in `worker_loop'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:548:in `spawn_missing_workers'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:562:in `maintain_worker_count'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/lib/unicorn/http_server.rb:295:in `join'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/unicorn-5.7.0/bin/unicorn:128:in `<top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/bin/unicorn:23:in `load'
/var/www/discourse/vendor/bundle/ruby/2.6.0/bin/unicorn:23:in `<main>'

Я сильно подозреваю, что здесь у вас закончилась память. Попробуйте увеличить размер экземпляра или добавить немного swap-памяти.

Сначала попробуйте обновить через консоль:

Мы определенно наблюдаем ряд проблем с поддержкой «убитых» процессов из-за нехватки памяти, связанных с последними изменениями в Docker Manager в отношении fork-процессов, @sam.. Как вы хотите это решить?

Чёрт, я должен был об этом подумать. Я просто пересобрал, и мой сайт снова работает, спасибо!

cd /var/discourse
./launcher rebuild app

Возможно, но раньше у меня такой проблемы не возникало. Мой сайт работает уже более года с 1024 МБ памяти.

Проверьте dmesg, чтобы узнать, запускался ли ваш oom-killer — это даст вам точный ответ.

Как насчет того, чтобы сделать поведение нового обновления зависимым от переменной окружения, устанавливаемой через ./discourse-setup для систем с оперативной памятью более 3 ГБ?

templates/web.template.yml:
env:
  DISCOURSE_GRACEFUL_UPGRADE: false

containers/app.yml:
env:
  # Установите значение true для систем с оперативной памятью не менее 3 ГБ.
  DISCOURSE_GRACEFUL_UPGRADE: false