포럼이 중단된 후 재구축 시 db:migrate 오류 발생

안타깝게도 문제가 다시 발생했습니다. 업그레이드 후 ./launcher start app 명령으로 사이트를 시작할 수 있으며, 일부는 정상적으로 동작하는 것 같습니다. 사용자는 사용자 이름과 비밀번호로 로그인할 수 없고, 다른 로그인 방법만 사용할 수 있습니다. 또한 사용자 프로필 카드를 보기로 시도해도 팝업이 표시되지 않습니다. 누군가가 사용자의 페이지나 자신의 프로필 페이지를 열려고 하면 "Oops - Error 500"이라는 제목의 다음 오류 메시지가 표시됩니다:

Oops

이 토론 포럼을 구동하는 소프트웨어에서 예상치 못한 문제가 발생했습니다. 불편을 드려 죄송합니다.

오류에 대한 자세한 정보는 로그에 기록되었으며 자동 알림이 생성되었습니다. 확인하겠습니다.

추가 조치는 필요하지 않습니다. 그러나 오류 상태가 지속되면, 오류 재현 단계를 포함한 추가 세부 정보를 사이트의 피드백 카테고리에 토론 주제를 게시하여 제공할 수 있습니다.

이번에는 웹 인터페이스를 통해 업그레이드를 시도해 보았습니다. 다른 것들(예: docker manager 및 일부 공식 플러그인)은 업그레이드했고 성공했습니다. 관리자 로그에서 업그레이드 결과를 확인할 수도 있습니다.
하지만 discourse 인스턴스를 업그레이드하려고 했을 때 여전히 실패했고, 로그는 다음과 같습니다:

********************************************************
*** Please be patient, next steps might take a while ***
********************************************************
Cycling Unicorn, to free up memory
Restarting unicorn pid: 52
Waiting for Unicorn to reload.
Waiting for Unicorn to reload..
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Waiting for Unicorn to reload............
Waiting for Unicorn to reload.............
Waiting for Unicorn to reload..............
Waiting for Unicorn to reload...............
Stopping 3 Unicorn worker(s), to free up memory
Stopping job queue to reclaim memory, master pid is 22756
$ cd /var/www/discourse && git fetch --tags --force && git reset --hard HEAD@{upstream}
From https://github.com/discourse/discourse
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HEAD is now at ff6114d83f FIX: Do not add mailing list headers to group SMTP emails (#13431)
$ bundle install --deployment --jobs 4 --without test development
[DEPRECATED] The `--deployment` flag is deprecated because it relies on being remembered across bundler invocations, which bundler will no longer do in future versions. Instead please use `bundle config set --local deployment 'true'`, and stop using this flag
[DEPRECATED] The `--without` flag is deprecated because it relies on being remembered across bundler invocations, which bundler will no longer do in future versions. Instead please use `bundle config set --local without 'test development'`, and stop using this flag
Warning: the running version of Bundler (2.2.15) is older than the version that created the lockfile (2.2.19). We suggest you to upgrade to the version that created the lockfile by running `gem install bundler:2.2.19`.
Fetching gem metadata from https://rubygems.org/............
Using rake 13.0.3
Fetching concurrent-ruby 1.1.9
Using minitest 5.14.4
Using zeitwerk 2.4.2
Using builder 3.2.4
Using erubi 1.10.0
Using racc 1.5.2
Using crass 1.0.6
Using rack 2.2.3
Using mini_mime 1.1.0
Using public_suffix 4.0.6
Using aws-eventstream 1.1.1
Using aws-partitions 1.432.0
Using jmespath 1.4.0
Using ember-source 2.18.2
Using msgpack 1.4.2
Using bundler 2.2.15
Using byebug 11.1.3
Using cbor 0.5.9.6
Using coderay 1.1.3
Using colored2 3.1.2
Using connection_pool 2.2.5
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Using cppjieba_rb 0.3.3
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Installing faraday-net_http_persistent 1.1.0
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Using hana 1.3.7
Using hashie 4.1.0
Using highline 2.0.3
Installing fastimage 2.2.4
Using hkdf 0.3.0
Using htmlentities 4.3.4
Using http_accept_language 2.1.1
Fetching image_size 2.1.0
Using in_threads 1.5.4
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Using json 2.5.1
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Fetching libv8-node 15.14.0.1 (x86_64-linux)
Using logstash-event 1.2.02
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Installing redis 4.3.1
Using mini_sql 1.1.3
Using multi_json 1.15.0
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Installing oj 3.11.6 with native extensions
Installing libv8-node 15.14.0.1 (x86_64-linux)
Using optimist 3.0.1
Using pg 1.2.3
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Fetching raindrops 0.19.2
Installing raindrops 0.19.2 with native extensions
Using rchardet 1.8.0
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Using unf_ext 0.0.7.7
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Installing nokogiri 1.11.7 (x86_64-linux)
Using rack-test 1.1.0
Using mail 2.8.0.edge from https://github.com/discourse/mail.git (at master@5b700fc)
Using addressable 2.7.0
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Using openssl-signature_algorithm 1.1.1
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Installing message_bus 3.3.6
Using rack-protection 2.1.0
Using pry 0.13.1
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Using barber 0.12.2
Using uglifier 4.2.0
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Installing faraday 1.4.2
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Using sprockets 3.7.2
Fetching image_optim 0.30.0
Installing tzinfo 2.0.4
Using webpush 1.1.0
Using logstash-logger 0.26.1
Using sidekiq 6.2.1
Fetching puma 5.3.2
Installing image_optim 0.30.0
Using redis-namespace 1.8.1
Using mini_racer 0.4.0
Fetching rqrcode 2.0.0
Installing puma 5.3.2 with native extensions
Installing rqrcode 2.0.0
Using unf 0.1.4
Fetching loofah 2.10.0
Installing loofah 2.10.0
Using nokogumbo 2.0.5
Using ruby-readability 0.7.0
Using aws-sdk-core 3.112.1
Using css_parser 1.9.0
Using cose 1.2.0
Using json_schemer 0.2.18
Using pry-byebug 3.9.0
Using pry-rails 0.3.9
Using omniauth-oauth 1.2.0
Using oauth2 1.4.7
Using ember-handlebars-template 0.8.0
Fetching activesupport 6.1.3.2
Installing activesupport 6.1.3.2
Using mini_scheduler 0.13.0
Using rails-html-sanitizer 1.3.0
Using sanitize 5.2.3
Using aws-sdk-kms 1.42.0
Using aws-sdk-sns 1.38.0
Using omniauth-oauth2 1.7.1
Using omniauth-twitter 1.4.0
Using rails-dom-testing 2.0.3
Using globalid 0.4.2
Fetching activemodel 6.1.3.2
Installing activemodel 6.1.3.2
Using aws-sdk-s3 1.90.0
Using omniauth-facebook 8.0.0
Using omniauth-github 1.4.0
Using omniauth-google-oauth2 0.8.2
Fetching actionview 6.1.3.2
Installing actionview 6.1.3.2
Fetching activejob 6.1.3.2
Using active_model_serializers 0.8.4
Fetching activerecord 6.1.3.2
Installing activejob 6.1.3.2
Fetching actionpack 6.1.3.2
Installing activerecord 6.1.3.2
Installing actionpack 6.1.3.2
Using actionview_precompiler 0.2.3
Using unicorn 6.0.0
Fetching actionmailer 6.1.3.2
Installing actionmailer 6.1.3.2
Fetching railties 6.1.3.2
Using sprockets-rails 3.2.2
Using seed-fu 2.3.9
Installing railties 6.1.3.2
Using jquery-rails 4.4.0
Using lograge 0.11.2
Fetching rails_failover 0.7.3
Fetching rails_multisite 3.0.0
Installing rails_multisite 3.0.0
Installing rails_failover 0.7.3
Using discourse-ember-rails 0.18.6
Using mini_suffix 0.3.2
Using rbtrace 0.4.14
Using sassc 2.0.1
Using sassc-rails 2.1.2
Bundle complete! 126 Gemfile dependencies, 169 gems now installed.
Gems in the groups test and development were not installed.
Bundled gems are installed into `./vendor/bundle`
Post-install message from image_optim:
Rails image assets optimization is extracted into image_optim_rails gem
You can safely remove `config.assets.image_optim = false` if you are not going to use that gem
$ bundle exec rake plugin:pull_compatible_all
discourse-tooltips is already at latest compatible version
discourse-characters-required is already at latest compatible version
discourse-user-notes is already at latest compatible version
discourse-solved is already at latest compatible version
discourse-push-notifications is already at latest compatible version
docker_manager is already at latest compatible version
discourse-checklist is already at latest compatible version
discourse-whos-online is already at latest compatible version
discourse-telegram-notifications is already at latest compatible version
discourse-yearly-review is already at latest compatible version
discourse-plugin-linkedin-auth is already at latest compatible version
discourse-follow is already at latest compatible version
discourse-bcc is already at latest compatible version
discourse-data-explorer is already at latest compatible version
discourse-canned-replies is already at latest compatible version
discourse-chat-integration is already at latest compatible version
discourse-assign is already at latest compatible version
discourse-cakeday is already at latest compatible version
discourse-footnote is already at latest compatible version
$ SKIP_POST_DEPLOYMENT_MIGRATIONS=1 bundle exec rake multisite:migrate

--------------------------------------------------------------------------------
1 migrations failed!

Failed to migrate default
#<StandardError: An error has occurred, this and all later migrations canceled:

ERROR:  unsupported Unicode escape sequence
DETAIL:  \u0000 cannot be converted to text.
CONTEXT:  JSON data, line 1: {"raw":...
>
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-mini-profiler-2.3.2/lib/patches/db/pg.rb:110:in `exec'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-mini-profiler-2.3.2/lib/patches/db/pg.rb:110:in `async_exec'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/mini_sql-1.1.3/lib/mini_sql/postgres/connection.rb:209:in `run'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/mini_sql-1.1.3/lib/mini_sql/postgres/connection.rb:64:in `query_single'
/var/www/discourse/db/migrate/20210426193009_move_approved_queued_posts_topic_and_post_data.rb:5:in `up'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:870:in `public_send'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:870:in `exec_migration'
/var/www/discourse/lib/freedom_patches/schema_migration_details.rb:9:in `block in exec_migration'
/usr/local/lib/ruby/2.7.0/benchmark.rb:293:in `measure'
/var/www/discourse/lib/freedom_patches/schema_migration_details.rb:8:in `exec_migration'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:851:in `block (2 levels) in migrate'
/usr/local/lib/ruby/2.7.0/benchmark.rb:293:in `measure'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:850:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:462:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:849:in `migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1037:in `migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1329:in `block in execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1380:in `block in ddl_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/connection_adapters/abstract/database_statements.rb:320:in `block in transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/connection_adapters/abstract/transaction.rb:310:in `block in within_new_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.1.3.2/lib/active_support/concurrency/load_interlock_aware_monitor.rb:26:in `block (2 levels) in synchronize'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.1.3.2/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.1.3.2/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.1.3.2/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-6.1.3.2/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/connection_adapters/abstract/transaction.rb:308:in `within_new_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/connection_adapters/abstract/database_statements.rb:320:in `transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/transactions.rb:209:in `transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1380:in `ddl_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1328:in `execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1302:in `each'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1302:in `migrate_without_lock'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1251:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1401:in `block in with_advisory_lock'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1416:in `block in with_advisory_lock_connection'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:462:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1416:in `with_advisory_lock_connection'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1397:in `with_advisory_lock'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1251:in `migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1086:in `up'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/migration.rb:1061:in `migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.1.3.2/lib/active_record/tasks/database_tasks.rb:237:in `migrate'
/var/www/discourse/lib/tasks/db.rake:184:in `block (2 levels) in <main>'
/var/www/discourse/lib/tasks/db.rake:148:in `block (3 levels) in execute_concurently'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rails_multisite-3.0.0/lib/rails_multisite/connection_management.rb:80:in `with_connection'
/var/www/discourse/lib/tasks/db.rake:146:in `block (2 levels) in execute_concurently'

Multisite migrator is running using 1 threads

Migrating default
== 20210426193009 MoveApprovedQueuedPostsTopicAndPostData: migrating ==========
Docker Manager: FAILED TO UPGRADE
#<RuntimeError: RuntimeError>
/var/www/discourse/plugins/docker_manager/lib/docker_manager/upgrader.rb:196:in `run'
/var/www/discourse/plugins/docker_manager/lib/docker_manager/upgrader.rb:100:in `upgrade'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:19:in `block in <main>'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:6:in `fork'
/var/www/discourse/plugins/docker_manager/scripts/docker_manager_upgrade.rb:6:in `<main>'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:59:in `load'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:59:in `load'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-6.0.3.5/lib/rails/commands/runner/runner_command.rb:42:in `perform'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/thor-1.1.0/lib/thor/command.rb:27:in `run'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/thor-1.1.0/lib/thor/invocation.rb:127:in `invoke_command'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/thor-1.1.0/lib/thor.rb:392:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-6.0.3.5/lib/rails/command/base.rb:69:in `perform'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-6.0.3.5/lib/rails/command.rb:46:in `invoke'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-6.0.3.5/lib/rails/commands.rb:18:in `<main>'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.3/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
bin/rails:17:in `<main>'
Spinning up 3 Unicorn worker(s) that were stopped initially

어떤 아이디어가 있을까요?