백업에서 복원하는 중 오류 발생

[Alienazk]

여러분 안녕하세요, 복원 과정에서 발생한 오류에 대해 도움을 요청드립니다.

방금 Discourse를 설치하고 백업에서 복원을 시도했습니다.
불행히도 복원 과정에서 오류가 발생했습니다.
아래는 출력 내용입니다:

Starting restore: discourse-2024-05-04-111743-v20240425133407.tar.gz
bundler: failed to load command: script/discourse (script/discourse)
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rack-mini-profiler-3.3.1/lib/patches/db/pg.rb:110:in `exec': PG::UndefinedTable: ERROR:  relation "users" does not exist (ActiveRecord::StatementInvalid)
LINE 9:  WHERE a.attrelid = '"users"'::regclass
                            ^

	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rack-mini-profiler-3.3.1/lib/patches/db/pg.rb:110:in `async_exec'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:19:in `block (2 levels) in query'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/share_lock.rb:187:in `yield_shares'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/dependencies/interlock.rb:41:in `permit_concurrent_loads'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:18:in `block in query'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/abstract_adapter.rb:752:in `block in log'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/abstract_adapter.rb:743:in `log'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:17:in `query'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/postgresql_adapter.rb:916:in `column_definitions'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:117:in `columns'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:117:in `block in columns'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:116:in `fetch'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:116:in `columns'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:125:in `block in columns_hash'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:124:in `fetch'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:124:in `columns_hash'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:580:in `load_schema!'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/attributes.rb:264:in `load_schema!'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/encryption/encryptable_record.rb:122:in `load_schema!'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:566:in `block in load_schema'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:563:in `synchronize'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:563:in `load_schema'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:419:in `columns_hash'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:309:in `block in find_by'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `each'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `each_with_object'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `find_by'
	from /var/www/discourse/lib/discourse.rb:884:in `system_user'
	from script/discourse:143:in `restore'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/command.rb:28:in `run'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/invocation.rb:127:in `invoke_command'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor.rb:527:in `dispatch'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/base.rb:584:in `start'
	from script/discourse:290:in `<top (required)>'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:58:in `load'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:58:in `kernel_load'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:23:in `run'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:451:in `exec'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/command.rb:28:in `run'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor.rb:527:in `dispatch'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:34:in `dispatch'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/base.rb:584:in `start'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:28:in `start'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/exe/bundle:28:in `block in <top (required)>'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/friendly_errors.rb:117:in `with_friendly_errors'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/exe/bundle:20:in `<top (required)>'
	from /usr/local/bin/bundle:25:in `load'
	from /usr/local/bin/bundle:25:in `<main>'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rack-mini-profiler-3.3.1/lib/patches/db/pg.rb:110:in `exec': ERROR:  relation "users" does not exist (PG::UndefinedTable)
LINE 9:  WHERE a.attrelid = '"users"'::regclass
                            ^

	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rack-mini-profiler-3.3.1/lib/patches/db/pg.rb:110:in `async_exec'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:19:in `block (2 levels) in query'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/share_lock.rb:187:in `yield_shares'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/dependencies/interlock.rb:41:in `permit_concurrent_loads'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:18:in `block in query'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/abstract_adapter.rb:752:in `block in log'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/abstract_adapter.rb:743:in `log'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:17:in `query'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/postgresql_adapter.rb:916:in `column_definitions'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/abstract/schema_statements.rb:117:in `columns'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:117:in `block in columns'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:116:in `fetch'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:116:in `columns'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:125:in `block in columns_hash'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:124:in `fetch'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/connection_adapters/schema_cache.rb:124:in `columns_hash'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:580:in `load_schema!'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/attributes.rb:264:in `load_schema!'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/encryption/encryptable_record.rb:122:in `load_schema!'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:566:in `block in load_schema'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:563:in `synchronize'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:563:in `load_schema'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:419:in `columns_hash'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:309:in `block in find_by'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `each'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `each_with_object'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `find_by'
	from /var/www/discourse/lib/discourse.rb:884:in `system_user'
	from script/discourse:143:in `restore'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/command.rb:28:in `run'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/invocation.rb:127:in `invoke_command'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor.rb:527:in `dispatch'
	from /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/base.rb:584:in `start'
	from script/discourse:290:in `<top (required)>'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:58:in `load'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:58:in `kernel_load'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:23:in `run'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:451:in `exec'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/command.rb:28:in `run'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor.rb:527:in `dispatch'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:34:in `dispatch'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/base.rb:584:in `start'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:28:in `start'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/exe/bundle:28:in `block in <top (required)>'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/friendly_errors.rb:117:in `with_friendly_errors'
	from /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/exe/bundle:20:in `<top (required)>'
	from /usr/local/bin/bundle:25:in `load'
	from /usr/local/bin/bundle:25:in `<main>'

정말 감사합니다

[pfaffman (Jay Pfaffman)]

표준 설치였으며, 설치를 시작하기 전에 해당 설치 환경이 정상적으로 작동하고 있었나요?

명령줄에서 시작했나요, 아니면 웹 인터페이스에서 시작했나요?

버그일 가능성이 약간은 있지만, 그럴 가능성은 낮아 보입니다.

[Alienazk]

표준 설치였고, 복원을 시작하기 전까지는 잘 작동했습니다.
처음에는 웹 인터페이스에서 시작했는데, 아래 그림과 같이 실패했습니다.

다음에는 명령줄에서 시작했는데, 두 번째 출력 결과가 나타났습니다.

[Alienazk]

현재 진행 중인 복구 작업으로 인해 발생하고 있는 것으로 보입니다.
이전 문제는 해결되었습니다.
그러나 이제 메모리와 스왑이 모두 완전히 사용되어 사이트가 크게 느려지는 또 다른 문제가 발생했습니다. 원인을 파악하는 데 어려움을 겪고 있습니다.
혹시 조언을 주실 수 있는 분이 있을까요?
정말 감사합니다!

[pfaffman (Jay Pfaffman)]

내 추측으로는 더 많은 RAM이 필요한 것 같습니다. 최소한 스왑 공간을 더 추가해야 합니다.

데이터베이스 용량은 얼마나 되나요?

[Ed_S]

유니콘(스레드) 수가 꽤 많습니다. CPU당 2개라는 정상적인 수치이지만, RAM이 4GB인 환경에서는 다소 과한 편입니다. 유니콘 수를 줄이는 것을 권장합니다.

가상 메모리 사용량을 개선하기 위해 유용하게 조정할 수 있는 커널 설정도 몇 가지 있습니다. 아래를 참고하세요.

@Ed_S

하지만 MKJ의 의견 있는 Discourse 배포 설정에서 언급된 커널 튜너블 값도 있습니다. 저는 이 값을 올바르게 설정해 두었지만, 많은 사람들이 올바르게 설정하지 않고 있을 수 있습니다.

[Alienazk]

RAM을 더 추가해야 하나요?

[Ed_S]

RAM이 더 필요한지 확인하는 가장 좋은 방법은 페이지ング 활동을 관찰하는 것입니다.

저는

vmstat 5 5

을 사용합니다. 이는 복사하여 붙여넣을 수 있는 기록을 남기기 때문입니다. 어떤 사람들은 top이나 htop을 사용합니다.

[Alienazk]

제안해 주셔서 감사합니다.
Unicorn 프로세스 수를 4로 줄이는 건 어떨까요?

[Ed_S]

@Alienazk

Unicorn 프로세스 수를 줄이는 것

한 번 시도해 볼 가치가 있습니다. 트래픽에 따라 달라지죠. 저는 일일 활성 사용자가 40~50명 정도라 유니콘 2개로 충분합니다.

또 다른 점: 스왑이 가득 차 있다면 스왑 공간을 추가해야 합니다. 이로 인해 해가 될 일은 없으며, 프로세스가 종료되는 나쁜 결과를 막아줄 수도 있습니다.

[Alienazk]

감사합니다!
참고로, 컨테이너를 다시 빌드하지 않고 유니콘의 수를 변경할 수 있을까요?

[Ed_S]

@Alienazk

컨테이너를 다시 빌드하지 않고 유니콘의 수를 변경하세요

그렇게 할 수 있다고 생각하지 않습니다.