PostgreSQL 18 update for self-hosters

[supermathie (Michael Brown)]

@jimmy0017

Google Cloud SQL

We recommend testing the process since this isn’t something we support, but likely all you’ll need to do is tell it to upgrade and it’ll be fine.

[Lilly (Lillian)]

i just did the PostgreSQL 18 for a standard install and a dual container without any issues at all. thanks again @chrisr and team for the easy instructions.

for a dual container configuration behind Cloudflare CDN with R2 uploads/backup buckets, the steps i used were as follows:

Step 1: disk cleanup

# nuke all unused docker data
docker system prune -a -f

# clear old logs and apt cache
journalctl --vacuum-time=2d
apt-get clean
apt-get autoremove -y

# check database size
du -sh /var/discourse/shared/data/postgres_data

# check new available free space
df -h -x tmpfs -x devtmpfs

Step 2: maintenance & backup

1. edit a Cloudflare maintenance page to say 15-20 minutes system maintenance update (may not take this long, but good to be safe!) and set a reload timer of 30 seconds or so. turn on a Cloudflare worker route to show the maintenance page.

2. trigger a backup via command line:

cd /var/discourse
./launcher enter web_only
discourse backup
exit

3. log into Cloudflare R2 dashboard and check the backup folder to confirm the backup file was successfully uploaded

Step 3: safe shutdown

1. stop the web container first to kill any active connections, then stop the database container:

cd /var/discourse
./launcher stop web_only
./launcher stop data

3. verify that PostgreSQL shut down properly:

tail -n 20 shared/data/log/var-log/postgres/current

Step 4: upgrade rebuilds

run the following commands in this order:

./launcher rebuild data # dumps, migrate and restore postgresql 18
./launcher rebuild data # rebuilds database container
./launcher rebuild web_only # rebuilds web app

Step 5: optimization & cleanup

1. generate the missing pg18 table stats, otherwise the forum will be slower than normal:

docker exec -u postgres data /usr/lib/postgresql/18/bin/vacuumdb -d discourse --analyze-in-stages

2. test the forum to ensure everything is working - maintenance page should not be loading now if you have a reload timer set on it.
3. remove the Cloudflare worker route to the maintenance page (we don’t want to hit the 100,000 daily limit!)
4. delete the old pg18 data to reclaim that disk space:

rm -fr /var/discourse/shared/data/postgres_data_old/

done!

[pfaffman (Jay Pfaffman)]

For 1 you’d need to have that extra space mounted in the container where the upgrade process will use it, but you’d still have to bypass the space check, I think?

I think it might be a chicken egg problem.

If your staging site uses a different database then it’s not really checking everything? If you want to stick with that, make a backup, delete postgres_data, and rebuild the container with an empty database, then restore the backup.

But what you really should do is make the new pg18 server, point the staging server there to see that it works and then transition the production server over to it.

[Tobias_1 (Tobias)]

I received the following error message during the update:

Stopping PostgreSQL 15 database server:
main.Stopping PostgreSQL 18 database server:
mainError: The cluster is owned by group id 993 which does not exist ... failed!
failed!

The trick to fix this was to remove the old upgrade remnants and correct the permissions:

rm -rf /var/discourse/shared/standalone/postgres_data_new
chown -R 999:999 /var/discourse/shared/standalone/postgres_data

… Then run ./launcher rebuild app twice, and optionally (if the migration succeeded and everything is running) ./launcher cleanup.

Hope this helps.

[NateDhaliwal]

I’m running a dev environment with DevContainers on Windows, any way to fix this error?

discourse@ddf88cb78939:/workspace/discourse$ bin/dev
[rails] Starting Pitchfork...
[ember] Starting rolldown dev server...
[rails] Starting CSS change watcher
[rails] URGENT: Failed to initialize site default: ActiveRecord::ConnectionNotEstablished connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: No such file or directory
[rails]         Is the server running locally and accepting connections on that socket?
[rails] connection to server on socket "/run/postgresql/.s.PGSQL.5432" failed: No such file or directory
[rails]         Is the server running locally and accepting connections on that socket?
[rails] connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory
[rails]         Is the server running locally and accepting connections on that socket?
[rails] 
[rails] /workspace/discourse/config/initializers/000-pg_connection_patch.rb:35:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.new_client'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:944:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#connect'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:956:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#reconnect'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:670:in 'block (2 levels) inActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:1224:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#attempt_configure_connection'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:669:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:668:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:778:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#verify!'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:766:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#verify!'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:786:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#connect!'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:992:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:991:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/quoting.rb:128:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting#quote_string'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract/quoting.rb:76:in 'ActiveRecord::ConnectionAdapters::Quoting#quote'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/quoting.rb:122:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting#quote'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:1142:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::SchemaStatements#quoted_scope'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:1119:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::SchemaStatements#data_source_sql'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:60:in 'ActiveRecord::ConnectionAdapters::SchemaStatements#table_exists?'
[rails] /workspace/discourse/lib/site_settings/db_provider.rb:58:in 'SiteSettings::DbProvider#table_exists?'
[rails] /workspace/discourse/lib/site_settings/db_provider.rb:14:in 'SiteSettings::DbProvider#all'
[rails] /workspace/discourse/lib/site_setting_extension.rb:1286:in 'SiteSettingExtension#fetch_setting_hash_from_provider'
[rails] /workspace/discourse/lib/site_setting_extension.rb:602:in 'block in SiteSettingExtension#refresh!'
[rails] /workspace/discourse/lib/site_setting_extension.rb:598:in 'Thread::Mutex#synchronize'
[rails] /workspace/discourse/lib/site_setting_extension.rb:598:in 'SiteSettingExtension#refresh!'
[rails] /workspace/discourse/config/initializers/005-site_settings.rb:19:in 'block (2 levels) in <main>'
[rails] /workspace/discourse/lib/freedom_patches/rails_multisite.rb:15:in 'block in RailsMultisite::ConnectionManagement.safe_each_connection'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/rails_multisite-7.0.0/lib/rails_multisite/connection_management/null_instance.rb:49:in 'RailsMultisite::ConnectionManagement::NullInstance#with_connection'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/rails_multisite-7.0.0/lib/rails_multisite/connection_management/null_instance.rb:36:in 'RailsMultisite::ConnectionManagement::NullInstance#each_connection'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/rails_multisite-7.0.0/lib/rails_multisite/connection_management.rb:17:in 'RailsMultisite::ConnectionManagement.each_connection'
[rails] /workspace/discourse/lib/freedom_patches/rails_multisite.rb:9:in 'RailsMultisite::ConnectionManagement.each_active_connection'
[rails] /workspace/discourse/lib/freedom_patches/rails_multisite.rb:14:in 'RailsMultisite::ConnectionManagement.safe_each_connection'
[rails] /workspace/discourse/config/initializers/005-site_settings.rb:18:in 'block in <main>'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:406:in 'BasicObject#instance_exec'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:406:in 'block in ActiveSupport::Callbacks::CallTemplate::InstanceExec0#make_lambda'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:178:in 'block in ActiveSupport::Callbacks::Filters::Before#call'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:668:in 'block (2 levels) in ActiveSupport::Callbacks::CallbackChain#default_terminator'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:667:in 'Kernel#catch'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:667:in 'block in ActiveSupport::Callbacks::CallbackChain#default_terminator'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:179:in 'ActiveSupport::Callbacks::Filters::Before#call'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'block in ActiveSupport::Callbacks::CallbackSequence#invoke_before'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'Array#each'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'ActiveSupport::Callbacks::CallbackSequence#invoke_before'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:108:in 'ActiveSupport::Callbacks#run_callbacks'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/reloader.rb:96:in 'ActiveSupport::Reloader.prepare!'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/application/finisher.rb:73:in 'block in <module:Finisher>'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:32:in 'BasicObject#instance_exec'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:32:in 'Rails::Initializable::Initializer#run'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:61:in 'block in Rails::Initializable#run_initializers'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:231:in 'block in TSort.tsort_each'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:353:in 'block (2 levels) in TSort.each_strongly_connected_component'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:434:in 'TSort.each_strongly_connected_component_from'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:352:in 'block in TSort.each_strongly_connected_component'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'Rails::Initializable::Collection#each'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'Method#call'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'TSort.each_strongly_connected_component'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:229:in 'TSort.tsort_each'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:208:in 'TSort#tsort_each'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:60:in 'Rails::Initializable#run_initializers'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/application.rb:444:in 'Rails::Application#initialize!'
[rails] /workspace/discourse/config/environment.rb:7:in '<top (required)>'
[rails] /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require'
[rails] /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
[rails] config.ru:8:in 'block in <main>'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/rack-2.2.23/lib/rack/builder.rb:125:in 'BasicObject#instance_eval'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/rack-2.2.23/lib/rack/builder.rb:125:in 'Rack::Builder#initialize'
[rails] config.ru:3:in 'Class#new'
[rails] config.ru:3:in '<main>'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:91:in 'Kernel#eval'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:91:in 'block in Pitchfork.builder'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:1160:in 'Pitchfork::HttpServer#build_app!'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:694:in 'block in Pitchfork::HttpServer#spawn_initial_mold'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:170:in 'block in Pitchfork.clean_fork'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:168:in 'Kernel#catch'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:168:in 'Pitchfork.clean_fork'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:690:in 'Pitchfork::HttpServer#spawn_initial_mold'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:176:in 'Pitchfork::HttpServer#start'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/exe/pitchfork:110:in '<top (required)>'
[rails] /workspace/discourse/bin/pitchfork:58:in 'Kernel#load'
[rails] /workspace/discourse/bin/pitchfork:58:in 'block in <main>'
[rails] /workspace/discourse/bin/pitchfork:58:in 'Kernel#fork'
[rails] /workspace/discourse/bin/pitchfork:58:in '<main>'
[rails] /workspace/discourse/config/initializers/000-pg_connection_patch.rb:35:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.new_client': connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: No such file or directory (ActiveRecord::ConnectionNotEstablished)
[rails]         Is the server running locally and accepting connections on that socket?
[rails] connection to server on socket "/run/postgresql/.s.PGSQL.5432" failed: No such file or directory
[rails]         Is the server running locally and accepting connections on that socket?
[rails] connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory
[rails]         Is the server running locally and accepting connections on that socket?
[rails] 
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:944:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#connect'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:956:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#reconnect'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:670:in 'block (2 levels) in ActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:1224:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#attempt_configure_connection'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:669:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:668:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:778:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#verify!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:766:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#verify!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:786:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#connect!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:992:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:991:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/quoting.rb:128:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting#quote_string'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract/quoting.rb:76:in 'ActiveRecord::ConnectionAdapters::Quoting#quote'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/quoting.rb:122:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting#quote'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:1142:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::SchemaStatements#quoted_scope'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:1119:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::SchemaStatements#data_source_sql'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:45:in 'ActiveRecord::ConnectionAdapters::SchemaStatements#data_source_exists?'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/schema_migration.rb:102:in 'block in ActiveRecord::SchemaMigration#table_exists?'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:422:in'ActiveRecord::ConnectionAdapters::ConnectionPool#with_connection'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/schema_migration.rb:101:in 'ActiveRecord::SchemaMigration#table_exists?'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/migration.rb:1282:in 'ActiveRecord::MigrationContext#get_all_versions'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/migration.rb:1299:in 'ActiveRecord::MigrationContext#pending_migration_versions'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/migration.rb:1295:in 'ActiveRecord::MigrationContext#needs_migration?'
[rails]         from /workspace/discourse/config/initializers/100-flags.rb:6:in 'block in <main>'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:406:in 'BasicObject#instance_exec'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:406:in 'block in ActiveSupport::Callbacks::CallTemplate::InstanceExec0#make_lambda'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:178:in 'block in ActiveSupport::Callbacks::Filters::Before#call'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:668:in 'block (2 levels) in ActiveSupport::Callbacks::CallbackChain#default_terminator'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:667:in 'Kernel#catch'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:667:in 'block in ActiveSupport::Callbacks::CallbackChain#default_terminator'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:179:in 'ActiveSupport::Callbacks::Filters::Before#call'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'block in ActiveSupport::Callbacks::CallbackSequence#invoke_before'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'Array#each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'ActiveSupport::Callbacks::CallbackSequence#invoke_before'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:108:in 'ActiveSupport::Callbacks#run_callbacks'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/reloader.rb:96:in 'ActiveSupport::Reloader.prepare!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/application/finisher.rb:73:in 'block in <module:Finisher>'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:32:in 'BasicObject#instance_exec'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:32:in 'Rails::Initializable::Initializer#run'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:61:in 'block in Rails::Initializable#run_initializers'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:231:in 'block in TSort.tsort_each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:353:in 'block (2 levels) in TSort.each_strongly_connected_component'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:434:in 'TSort.each_strongly_connected_component_from'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:352:in 'block in TSort.each_strongly_connected_component'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'Rails::Initializable::Collection#each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'Method#call'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'TSort.each_strongly_connected_component'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:229:in 'TSort.tsort_each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:208:in 'TSort#tsort_each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:60:in 'Rails::Initializable#run_initializers'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/application.rb:444:in 'Rails::Application#initialize!'
[rails]         from /workspace/discourse/config/environment.rb:7:in '<top (required)>'
[rails]         from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require'
[rails]         from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
[rails]         from config.ru:8:in 'block in <main>'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/rack-2.2.23/lib/rack/builder.rb:125:in 'BasicObject#instance_eval'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/rack-2.2.23/lib/rack/builder.rb:125:in 'Rack::Builder#initialize'
[rails]         from config.ru:3:in 'Class#new'
[rails]         from config.ru:3:in '<main>'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:91:in 'Kernel#eval'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:91:in 'block in Pitchfork.builder'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:1160:in 'Pitchfork::HttpServer#build_app!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:694:in 'block in Pitchfork::HttpServer#spawn_initial_mold'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:170:in 'block in Pitchfork.clean_fork'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:168:in 'Kernel#catch'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:168:in 'Pitchfork.clean_fork'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:690:in 'Pitchfork::HttpServer#spawn_initial_mold'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:176:in 'Pitchfork::HttpServer#start'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/exe/pitchfork:110:in '<top (required)>'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'Kernel#load'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'block in <main>'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'Kernel#fork'
[rails]         from /workspace/discourse/bin/pitchfork:58:in '<main>'
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pg-1.6.3-x86_64-linux/lib/pg/connection.rb:944:in 'PG::Connection.connect_start': connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: No such file or directory (PG::ConnectionBad)
[rails]         Is the server running locally and accepting connections on that socket?
[rails] connection to server on socket "/run/postgresql/.s.PGSQL.5432" failed: No such file or directory
[rails]         Is the server running locally and accepting connections on that socket?
[rails] connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory
[rails]         Is the server running locally and accepting connections on that socket?
[rails] 
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pg-1.6.3-x86_64-linux/lib/pg/connection.rb:944:in 'PG::Connection.connect_to_hosts'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pg-1.6.3-x86_64-linux/lib/pg/connection.rb:871:in 'PG::Connection.new'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pg-1.6.3-x86_64-linux/lib/pg.rb:88:in 'PG.connect'
[rails]         from /workspace/discourse/config/initializers/000-pg_connection_patch.rb:5:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.new_client'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:944:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#connect'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:956:in 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter#reconnect'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:670:in 'block (2 levels) in ActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:1224:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#attempt_configure_connection'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:669:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:668:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#reconnect!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:778:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#verify!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:766:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#verify!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:786:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#connect!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:992:in 'block in ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/concurrency/null_lock.rb:9:in 'ActiveSupport::Concurrency::NullLock#synchronize'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract_adapter.rb:991:in 'ActiveRecord::ConnectionAdapters::AbstractAdapter#with_raw_connection'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/quoting.rb:128:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting#quote_string'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract/quoting.rb:76:in 'ActiveRecord::ConnectionAdapters::Quoting#quote'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/quoting.rb:122:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting#quote'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:1142:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::SchemaStatements#quoted_scope'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:1119:in 'ActiveRecord::ConnectionAdapters::PostgreSQL::SchemaStatements#data_source_sql'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:45:in 'ActiveRecord::ConnectionAdapters::SchemaStatements#data_source_exists?'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/schema_migration.rb:102:in 'block in ActiveRecord::SchemaMigration#table_exists?'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:422:in'ActiveRecord::ConnectionAdapters::ConnectionPool#with_connection'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/schema_migration.rb:101:in 'ActiveRecord::SchemaMigration#table_exists?'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/migration.rb:1282:in 'ActiveRecord::MigrationContext#get_all_versions'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/migration.rb:1299:in 'ActiveRecord::MigrationContext#pending_migration_versions'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activerecord-8.0.5.1/lib/active_record/migration.rb:1295:in 'ActiveRecord::MigrationContext#needs_migration?'
[rails]         from /workspace/discourse/config/initializers/100-flags.rb:6:in 'block in <main>'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:406:in 'BasicObject#instance_exec'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:406:in 'block in ActiveSupport::Callbacks::CallTemplate::InstanceExec0#make_lambda'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:178:in 'block in ActiveSupport::Callbacks::Filters::Before#call'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:668:in 'block (2 levels) in ActiveSupport::Callbacks::CallbackChain#default_terminator'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:667:in 'Kernel#catch'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:667:in 'block in ActiveSupport::Callbacks::CallbackChain#default_terminator'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:179:in 'ActiveSupport::Callbacks::Filters::Before#call'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'block in ActiveSupport::Callbacks::CallbackSequence#invoke_before'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'Array#each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:559:in 'ActiveSupport::Callbacks::CallbackSequence#invoke_before'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/callbacks.rb:108:in 'ActiveSupport::Callbacks#run_callbacks'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/activesupport-8.0.5.1/lib/active_support/reloader.rb:96:in 'ActiveSupport::Reloader.prepare!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/application/finisher.rb:73:in 'block in <module:Finisher>'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:32:in 'BasicObject#instance_exec'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:32:in 'Rails::Initializable::Initializer#run'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:61:in 'block in Rails::Initializable#run_initializers'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:231:in 'block in TSort.tsort_each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:353:in 'block (2 levels) in TSort.each_strongly_connected_component'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:434:in 'TSort.each_strongly_connected_component_from'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:352:in 'block in TSort.each_strongly_connected_component'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'Rails::Initializable::Collection#each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'Method#call'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:350:in 'TSort.each_strongly_connected_component'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:229:in 'TSort.tsort_each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/tsort-0.2.0/lib/tsort.rb:208:in 'TSort#tsort_each'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/initializable.rb:60:in 'Rails::Initializable#run_initializers'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/railties-8.0.5.1/lib/rails/application.rb:444:in 'Rails::Application#initialize!'
[rails]         from /workspace/discourse/config/environment.rb:7:in '<top (required)>'
[rails]         from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'Kernel.require'
[rails]         from /usr/local/lib/ruby/3.4.0/bundled_gems.rb:82:in 'block (2 levels) in Kernel#replace_require'
[rails]         from config.ru:8:in 'block in <main>'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/rack-2.2.23/lib/rack/builder.rb:125:in 'BasicObject#instance_eval'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/rack-2.2.23/lib/rack/builder.rb:125:in 'Rack::Builder#initialize'
[rails]         from config.ru:3:in 'Class#new'
[rails]         from config.ru:3:in '<main>'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:91:in 'Kernel#eval'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:91:in 'block in Pitchfork.builder'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:1160:in 'Pitchfork::HttpServer#build_app!'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:694:in 'block in Pitchfork::HttpServer#spawn_initial_mold'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:170:in 'block in Pitchfork.clean_fork'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:168:in 'Kernel#catch'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork.rb:168:in 'Pitchfork.clean_fork'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:690:in 'Pitchfork::HttpServer#spawn_initial_mold'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:176:in 'Pitchfork::HttpServer#start'
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/exe/pitchfork:110:in '<top (required)>'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'Kernel#load'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'block in <main>'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'Kernel#fork'
[rails]         from /workspace/discourse/bin/pitchfork:58:in '<main>'
[rails] mold gen=0 pid=6050 reaped (#<Process::Status: pid 6050 exit 1>)
[rails] /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/lib/pitchfork/http_server.rb:179:in 'Pitchfork::HttpServer#start': The initial mold failed to boot (Pitchfork::BootFailure)
[rails]         from /home/discourse/.bundle/gems/ruby/3.4.0/gems/pitchfork-0.18.2/exe/pitchfork:110:in '<top (required)>'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'Kernel#load'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'block in <main>'
[rails]         from /workspace/discourse/bin/pitchfork:58:in 'Kernel#fork'
[rails]         from /workspace/discourse/bin/pitchfork:58:in '<main>'
[rails] /workspace/discourse/bin/pitchfork exited with code 0
--> Sending SIGTERM to other processes..
[ember] ./rolldown.mjs exited with code SIGTERM
discourse@ddf88cb78939:/workspace/discourse$

Might be a guess, but is Discourse mixing them up?

discourse@ddf88cb78939:/workspace/discourse$ sudo cat /shared/postgres_data/PG_VERSION
sudo cat /shared/postgres_data_orig/PG_VERSION
15
18

EDIT: Fixed with ChatGPT’s help. I’m no Linux/Postgres wizard.

[kcahtoor]

I am facing a problem postgres 18 is missing or not migrating my secondsite db. Any help regarding this will be appreciated.

[chrisr (Chris Rendle-Short)]

I have a fix pending for the broken multisite upgrades, will update you when it’s ready.

[chrisr (Chris Rendle-Short)]

I’ve just merged a fix for multisites and all DBs should now upgrade properly. You can revert your DB back to its pre-upgrade state and try again by doing the following:

1. Confirm the old data still exists at /shared/postgres_data_old.
2. Delete the botched upgrade data from /shared/postgres_data (if you have enough free disk space it might be an idea to rename for now instead of deleting it).
3. Rename /shared/postgres_data_old back to /shared/postgres_data. You’ll also need to ensure the directory mode is 0700 or else Postgres will refuse to use it.
4. Start the upgrade again by running ./launcher rebuild app.

[Moin]

I think they solved their problem a few hours ago

I upgraded to latest and lost everything

So i have checked the postgres template file. It is targeting only one db. Which is insane. It should have looped through the databases present and changed them. I leaving this here for anybody looking for a solution in this scenario DB_LIST=$(su postgres -c "/usr/lib/postgresql/${PG_MAJOR_OLD}/bin/psql -p 5432 -tAc \"select datname from pg_database where not datistemplate and datname != 'postgres'\"") for DB in $DB_LIST; do su postgres -c "/usr/lib/postgresql/${PG_MAJOR_OLD}/bin/pg_dump -Fd…

[kcahtoor]

Thank you much appreciated.

[peternlewis]

I noted this in the rebuild messages:

116:C 11 Aug 2026 06:43:27.336 # WARNING Memory overcommit must be enabled! Without it, a background save or replication may fail under low memory condition. Being disabled, it can also cause failures without low memory condition, see vm.max_map_count growing steadily when vm.overcommit_memory is 2 · Issue #1328 · jemalloc/jemalloc · GitHub. To fix this issue add ‘vm.overcommit_memory = 1’ to /etc/sysctl.conf and then reboot or run the command ‘sysctl vm.overcommit_memory=1’ for this to take effect.

Is this something to be concerned about?

[peternlewis]

I also note that my new database size is significantly smaller than the old size:

root@Forum:/var/discourse/shared/standalone# du -sh postgres_data postures_data_old
6.8G  postgres_data
10G   postgres_data_old
17G	total

Is that be a concern?

[merefield (Robert)]

@peternlewis

postures_data_old

that’s an odd directory name?

for comparison mine turned out:

:/var/discourse/shared/data# du -sh postgres_data postgres_data_old
4.1G    postgres_data
3.4G    postgres_data_old

[peternlewis]

@merefield

that’s an odd directory name?

Yeah, I think type correction somehow mangled that. It is postgres_data.

So your new data was larger. That’s a little concerning.

[Andrew_Rowe]

Ran the update as per and everything went very well. First rebuilt resulted in a message in console that the update from 15 had been successful along with where the old db was and instructions to run rebuild once more.

thanks to Lilly’s hint

@Lilly

# check database size
du -sh /var/discourse/shared/data/postgres_data

was able to see I had enough room on the disc

EDIT: to add

Thanks to everyone who worked on this great job

[Ed_S]

@Lilly

# check database size
du -sh /var/discourse/shared/data/postgres_data

I’d probably add the wildcard in case of remnants of upgrades:

# check database size
du -sh /var/discourse/shared/data/postgres_data*

[agemo]

@Ed_S

What kind of hopefully graceful failure will occur if there is not enough free disk space? Someone is bound to exercise that path!

For those who don’t have enough free disk space, will it work to take a backup, and then restore into a fresh install, as a migration?

(In which case, it might also be a good time to move up to a new LTS version of the operating system. Ubuntu 26.04 is pretty new; 26.04.1 is expected very shortly. A fresh OS install may be less troublesome than an attempted upgrade in place.)

vrrrmmmmmm …

As you might guess, I didn’t get this memo… doh!

[agemo]

Well I had no clue about this DB upgrade and space requirements, ran out of space by 12GB error message on postgres message initially, the app would not restart. Cleaned up the drive managed to free up about 6Gb, ran it again, still no luck.

I didn’t mess around, and reverted to backup restore.

[merefield (Robert)]

you can always do a @pfaffman and move to an entirely new server and start with a brand spanking new install of PG 18 and latest Ubuntu LTS to boot …