# Multi-site upgrade leaves \_some\_ sites unavailable **URL:** \ **Category:** Product Support\ **Created:** [June 11, 2021, 10:12am UTC](https://meta.discourse.org/t/multi-site-upgrade-leaves-some-sites-unavailable/193509 "2021-06-11T10:12:33Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![hellekin](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/hellekin/32/51636_2.png) [@hellekin](https://meta.discourse.org/u/hellekin)\ **Post date:** [June 13, 2021, 8:56pm UTC](https://meta.discourse.org/t/multi-site-upgrade-leaves-some-sites-unavailable/193509/4 "2021-06-13T20:56:17Z")
Thank you @pfaffman. I used `rebuild` (twice) and `safe-mode` did not help. I’m currently rebuilding on another machine to avoid multisite and see if restoring from backups work. Just to add: published pages (under `/pub`) work normally. Oh, and `/admin` too… Maybe I can solve it… * * * Apparently it comes from `discourse-prometheus-alert-receiver` which is not enabled for this site… ```plaintext plugins/discourse-prometheus-alert-receiver/plugin.rb:152:in `block (2 levels) in activate!' lib/topic_query.rb:111:in `block in apply_custom_filters' lib/topic_query.rb:110:in `each' lib/topic_query.rb:110:in `apply_custom_filters' lib/topic_query.rb:890:in `default_results' lib/topic_query.rb:507:in `latest_results' lib/topic_query.rb:242:in `list_latest' app/controllers/categories_controller.rb:51:in `block (2 levels) in index' actionpack (6.1.3.2) lib/action_controller/metal/mime_responds.rb:214:in `respond_to' app/controllers/categories_controller.rb:40:in `index' actionpack (6.1.3.2) lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action' actionpack (6.1.3.2) lib/abstract_controller/base.rb:228:in `process_action' actionpack (6.1.3.2) lib/action_controller/metal/rendering.rb:30:in `process_action' actionpack (6.1.3.2) lib/abstract_controller/callbacks.rb:42:in `block in process_action' activesupport (6.1.3.2) lib/active_support/callbacks.rb:117:in `block in run_callbacks' app/controllers/application_controller.rb:395:in `block in with_resolved_locale' i18n (1.8.10) lib/i18n.rb:314:in `with_locale' app/controllers/application_controller.rb:395:in `with_resolved_locale' activesupport (6.1.3.2) lib/active_support/callbacks.rb:126:in `block in run_callbacks' activesupport (6.1.3.2) lib/active_support/callbacks.rb:137:in `run_callbacks' actionpack (6.1.3.2) lib/abstract_controller/callbacks.rb:41:in `process_action' actionpack (6.1.3.2) lib/action_controller/metal/rescue.rb:22:in `process_action' actionpack (6.1.3.2) lib/action_controller/metal/instrumentation.rb:34:in `block in process_action' activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `block in instrument' activesupport (6.1.3.2) lib/active_support/notifications/instrumenter.rb:24:in `instrument' activesupport (6.1.3.2) lib/active_support/notifications.rb:203:in `instrument' actionpack (6.1.3.2) lib/action_controller/metal/instrumentation.rb:33:in `process_action' actionpack (6.1.3.2) lib/action_controller/metal/params_wrapper.rb:249:in `process_action' activerecord (6.1.3.2) lib/active_record/railties/controller_runtime.rb:27:in `process_action' actionpack (6.1.3.2) lib/abstract_controller/base.rb:165:in `process' actionview (6.1.3.2) lib/action_view/rendering.rb:39:in `process' rack-mini-profiler (2.3.2) lib/mini_profiler/profiling_methods.rb:111:in `block in profile_method' actionpack (6.1.3.2) lib/action_controller/metal.rb:190:in `dispatch' actionpack (6.1.3.2) lib/action_controller/metal.rb:254:in `dispatch' actionpack (6.1.3.2) lib/action_dispatch/routing/route_set.rb:50:in `dispatch' actionpack (6.1.3.2) lib/action_dispatch/routing/route_set.rb:33:in `serve' actionpack (6.1.3.2) lib/action_dispatch/journey/router.rb:50:in `block in serve' actionpack (6.1.3.2) lib/action_dispatch/journey/router.rb:32:in `each' actionpack (6.1.3.2) lib/action_dispatch/journey/router.rb:32:in `serve' actionpack (6.1.3.2) lib/action_dispatch/routing/route_set.rb:842:in `call' lib/middleware/omniauth_bypass_middleware.rb:71:in `call' rack (2.2.3) lib/rack/tempfile_reaper.rb:15:in `call' rack (2.2.3) lib/rack/conditional_get.rb:27:in `call' rack (2.2.3) lib/rack/head.rb:12:in `call' actionpack (6.1.3.2) lib/action_dispatch/http/permissions_policy.rb:22:in `call' lib/content_security_policy/middleware.rb:12:in `call' lib/middleware/anonymous_cache.rb:355:in `call' config/initializers/008-rack-cors.rb:25:in `call' rack (2.2.3) lib/rack/session/abstract/id.rb:266:in `context' rack (2.2.3) lib/rack/session/abstract/id.rb:260:in `call' actionpack (6.1.3.2) lib/action_dispatch/middleware/cookies.rb:689:in `call' actionpack (6.1.3.2) lib/action_dispatch/middleware/callbacks.rb:27:in `block in call' activesupport (6.1.3.2) lib/active_support/callbacks.rb:98:in `run_callbacks' actionpack (6.1.3.2) lib/action_dispatch/middleware/callbacks.rb:26:in `call' actionpack (6.1.3.2) lib/action_dispatch/middleware/actionable_exceptions.rb:18:in `call' actionpack (6.1.3.2) lib/action_dispatch/middleware/debug_exceptions.rb:29:in `call' actionpack (6.1.3.2) lib/action_dispatch/middleware/show_exceptions.rb:33:in `call' logster (2.9.6) lib/logster/middleware/reporter.rb:43:in `call' railties (6.1.3.2) lib/rails/rack/logger.rb:37:in `call_app' railties (6.1.3.2) lib/rails/rack/logger.rb:28:in `call' config/initializers/100-quiet_logger.rb:23:in `call' config/initializers/100-silence_logger.rb:31:in `call' actionpack (6.1.3.2) lib/action_dispatch/middleware/remote_ip.rb:81:in `call' actionpack (6.1.3.2) lib/action_dispatch/middleware/request_id.rb:26:in `call' lib/middleware/enforce_hostname.rb:23:in `call' rack (2.2.3) lib/rack/method_override.rb:24:in `call' rack (2.2.3) lib/rack/sendfile.rb:110:in `call' actionpack (6.1.3.2) lib/action_dispatch/middleware/host_authorization.rb:92:in `call' plugins/discourse-prometheus/lib/middleware/metrics.rb:17:in `call' rack-mini-profiler (2.3.2) lib/mini_profiler/profiler.rb:384:in `call' message_bus (3.3.6) lib/message_bus/rack/middleware.rb:61:in `call' lib/middleware/request_tracker.rb:177:in `call' rails_multisite (3.0.0) lib/rails_multisite/middleware.rb:25:in `call' railties (6.1.3.2) lib/rails/engine.rb:539:in `call' railties (6.1.3.2) lib/rails/railtie.rb:207:in `public_send' railties (6.1.3.2) lib/rails/railtie.rb:207:in `method_missing' rack (2.2.3) lib/rack/urlmap.rb:74:in `block in call' rack (2.2.3) lib/rack/urlmap.rb:58:in `each' rack (2.2.3) lib/rack/urlmap.rb:58:in `call' unicorn (6.0.0) lib/unicorn/http_server.rb:634:in `process_client' unicorn (6.0.0) lib/unicorn/http_server.rb:732:in `worker_loop' unicorn (6.0.0) lib/unicorn/http_server.rb:547:in `spawn_missing_workers' unicorn (6.0.0) lib/unicorn/http_server.rb:143:in `start' unicorn (6.0.0) bin/unicorn:128:in `' vendor/bundle/ruby/2.7.0/bin/unicorn:23:in `load' vendor/bundle/ruby/2.7.0/bin/unicorn:23:in `
' ``` The following line seems to be the culprit. But since the plugin is not enabled, it should not fire, right? > --- _[View the full topic](https://meta.discourse.org/t/multi-site-upgrade-leaves-some-sites-unavailable/193509)._