重建失败，错误为 db:migrate "relation "form_templates" already exists"

安装
1

Discourse 重建失败。这是日志。

有什么最好的方法可以解决它？我们的 PostgreSQL 托管在 RDS 上，并使用官方的 Docker 容器方法运行 Discourse。

I, [2023-10-25T14:47:59.607563 #1]  INFO -- : 	> cd /var/www/discourse && su discourse -c 'bundle exec rake db:migrate'
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

PG::DuplicateTable: ERROR:  relation "form_templates" already exists
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rack-mini-profiler-3.1.1/lib/patches/db/pg.rb:110:in `exec'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rack-mini-profiler-3.1.1/lib/patches/db/pg.rb:110:in `async_exec'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/postgresql/database_statements.rb:48:in `block (2 levels) in execute'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/share_lock.rb:187:in `yield_shares'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/dependencies/interlock.rb:41:in `permit_concurrent_loads'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/postgresql/database_statements.rb:47:in `block in execute'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract_adapter.rb:752:in `block in log'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/notifications/instrumenter.rb:24:in `instrument'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract_adapter.rb:743:in `log'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/postgresql/database_statements.rb:46:in `execute'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/schema_statements.rb:326:in `create_table'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:932:in `block in method_missing'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:900:in `block in say_with_time'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:900:in `say_with_time'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:921:in `method_missing'
/var/www/discourse/db/migrate/20230202173641_create_form_templates.rb:5:in `change'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:870:in `exec_migration'
/var/www/discourse/lib/freedom_patches/schema_migration_details.rb:8:in `block in exec_migration'
/var/www/discourse/lib/freedom_patches/schema_migration_details.rb:8:in `exec_migration'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:854:in `block (2 levels) in migrate'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:853:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:215:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:852:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1046:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1360:in `block in execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/transaction.rb:319:in `block in within_new_transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `handle_interrupt'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in `block in synchronize'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `handle_interrupt'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in `synchronize'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/transaction.rb:317:in `within_new_transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/database_statements.rb:316:in `transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:209:in `transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1411:in `ddl_transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1359:in `execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1333:in `each'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1333:in `migrate_without_lock'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1282:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1432:in `block in with_advisory_lock'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:215:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1447:in `with_advisory_lock_connection'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1428:in `with_advisory_lock'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1282:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1117:in `up'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/migration.rb:1092:in `migrate'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/tasks/database_tasks.rb:262:in `migrate'
/var/www/discourse/lib/tasks/db.rake:250:in `block (2 levels) in <main>'
/var/www/discourse/lib/distributed_mutex.rb:53:in `block in synchronize'
/var/www/discourse/lib/distributed_mutex.rb:49:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:49:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:34:in `synchronize'
/var/www/discourse/lib/tasks/db.rake:225:in `block in <main>'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/usr/local/bin/bundle:25:in `load'
/usr/local/bin/bundle:25:in `<main>'
1 个赞
3

这可能是一个 bug。我更改了主题以提供更多信息。

您安装了哪些插件？

5

如何查找插件？

6

类似

cd /var/discourse
grep clone containers/*
7

我尝试查找插件目录，以下是列出的插件。

chat	   discourse-details	  discourse-local-dates    discourse-presence  poll
checklist  discourse-lazy-videos  discourse-narrative-bot  docker_manager      styleguide

除了主题之外，我们没有安装任何东西。

8

你没有一个 app.yml 文件，当执行重建时，它会被读取吗？

但看起来我的想法并不能解释任何东西。

9

我找到了 app.yml。那里没有列出任何额外的插件。正如我所说，我确定除了主题之外没有安装任何东西。

以下是我们导致此问题所采取的步骤：

  • 尝试使用 rake uploads:migrate_to_s3 将所有资产移动到 S3
  • 上述命令失败，提示 161 个资产中有 155 个未移动
  • 我们尝试通过备份面板上的“回滚”来恢复到之前的版本
  • 整个站点崩溃了。什么都无法运行。
  • 当我们尝试使用命令行恢复时，它说我们正在尝试在有待处理的迁移时进行恢复
  • 为了运行迁移，我们尝试重建，但这导致了这个错误。

希望这能提供一些思路。顺便说一句，我们目前的整个部署都已损坏。最好的解决办法是什么？在我们开始这一切之前，我们有一个最近的备份已上传到 S3。

1 个赞
10

RDS 备份面板？这可能就是你出错的地方。

如果恢复最近的备份没问题，那么我认为我会创建一个新的数据库，在 app.yml 中更新新的数据库名称，确保备份的 S3 设置在 yml 文件中，然后重建、恢复。

如果你想用钱解决问题，可以直接联系我。

11

不是 RDS 面板，而是 discourse 面板。

我们先尝试一段时间，如果不行，我们稍后会联系您。

1 个赞
12

Fresh DB + Fresh machine and restore on that worked well. Thanks for prompt response.

1 个赞
13

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