在从备份还原时遇到错误

Alienazk · 2024 年5 月 9 日 13:04

大家好，我在恢复过程中遇到了问题。
我刚刚安装了 Discourse，并尝试从备份中恢复。
不幸的是，在恢复过程中我遇到了一个错误。
输出如下：

正在开始恢复：discourse-2024-05-04-111743-v20240425133407.tar.gz
bundler: 加载命令失败：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: 错误：关系 "users" 不存在 (ActiveRecord::StatementInvalid)
第 9 行：WHERE a.attrelid = '"users"'::regclass
                            ^

	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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!'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/attributes.rb:264:in `load_schema!'
	来自 /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!'
	来自 /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'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:563:in `synchronize'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `each'
	来自 /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'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `find_by'
	来自 /var/www/discourse/lib/discourse.rb:884:in `system_user'
	来自 script/discourse:143:in `restore'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/command.rb:28:in `run'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/invocation.rb:127:in `invoke_command'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor.rb:527:in `dispatch'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/base.rb:584:in `start'
	来自 script/discourse:290:in `<top (required)>'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:58:in `load'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:58:in `kernel_load'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:23:in `run'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:451:in `exec'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/command.rb:28:in `run'
	来自 /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'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor.rb:527:in `dispatch'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:34:in `dispatch'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/base.rb:584:in `start'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:28:in `start'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/exe/bundle:28:in `block in <top (required)>'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/friendly_errors.rb:117:in `with_friendly_errors'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/exe/bundle:20:in `<top (required)>'
	来自 /usr/local/bin/bundle:25:in `load'
	来自 /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': 错误：关系 "users" 不存在 (PG::UndefinedTable)
第 9 行：WHERE a.attrelid = '"users"'::regclass
                            ^

	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.8.1/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /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!'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/attributes.rb:264:in `load_schema!'
	来自 /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!'
	来自 /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'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/model_schema.rb:563:in `synchronize'
	来自 /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'
	来自 /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'
	来自 /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'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `each'
	来自 /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'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.8.1/lib/active_record/core.rb:293:in `find_by'
	来自 /var/www/discourse/lib/discourse.rb:884:in `system_user'
	来自 script/discourse:143:in `restore'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/command.rb:28:in `run'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/invocation.rb:127:in `invoke_command'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor.rb:527:in `dispatch'
	来自 /var/www/discourse/vendor/bundle/ruby/3.2.0/gems/thor-1.3.1/lib/thor/base.rb:584:in `start'
	来自 script/discourse:290:in `<top (required)>'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:58:in `load'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:58:in `kernel_load'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli/exec.rb:23:in `run'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:451:in `exec'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/command.rb:28:in `run'
	来自 /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'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor.rb:527:in `dispatch'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:34:in `dispatch'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/vendor/thor/lib/thor/base.rb:584:in `start'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/cli.rb:28:in `start'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/exe/bundle:28:in `block in <top (required)>'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/lib/bundler/friendly_errors.rb:117:in `with_friendly_errors'
	来自 /usr/local/lib/ruby/gems/3.2.0/gems/bundler-2.5.3/exe/bundle:20:in `<top (required)>'
	来自 /usr/local/bin/bundle:25:in `load'
	来自 /usr/local/bin/bundle:25:in `<main>'

非常感谢

pfaffman · 2024 年5 月 9 日 13:34

这是标准安装吗？安装之前是否正常工作？

您是从命令行还是 Web 界面启动的？

有极小的可能是个 bug，但似乎不太可能。

Alienazk · 2024 年5 月 9 日 13:59

这是一次标准的安装，在开始恢复之前运行良好。
第一次，我从 Web 界面启动它，但失败了，如下图所示。

下一次，我从命令行启动它，输出来自第二次。

Alienazk · 2024 年5 月 9 日 16:29

我认为这是由于正在进行的恢复过程。
之前的问题已经解决。
但是，我们遇到了另一个问题，即我们的内存和交换空间都已满，导致我们的网站速度显着变慢。我很难找出原因。
有人能提供一些见解吗？
非常感谢！

pfaffman · 2024 年5 月 9 日 17:23

我猜很简单，就是你需要更多的内存。至少增加更多的交换空间。

你的数据库有多大？

Ed_S · 2024 年5 月 10 日 16:14

这有太多的 unicorn 了——这是正常数量，每个 CPU 2 个，但对于只有 4G RAM 来说就太多了。我建议减少 unicorn 的数量。

您还可以调整一些内核配置以改善虚拟内存使用。请参阅

我已经正确设置了，但也许很多人没有正确设置。

Alienazk · 2024 年5 月 11 日 15:13

我们需要更多的内存吗？

Ed_S · 2024 年5 月 11 日 15:32

查看内存使用情况的最佳方法是观察分页活动。

我使用

vmstat 5 5

因为它会留下我可以复制粘贴的记录。有些人会使用 top 或 htop。

Alienazk · 2024 年5 月 11 日 15:47

谢谢你的建议。
将 Unicorn 进程数减少到 4 个怎么样？

Ed_S · 2024 年5 月 11 日 16:03

值得一试。这取决于您的流量。我每天只有 40-50 个活跃用户，两个 unicorn 就足够了。

另一点：如果交换空间已满，您应该添加交换空间。这不会有任何坏处，而且可能会避免进程被终止的不良后果。

Alienazk · 2024 年5 月 12 日 12:31

谢谢！\n顺便问一下，我们可以在不重建容器的情况下更改独角兽的数量吗？

Ed_S · 2024 年5 月 12 日 20:06

我不这么认为。

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