您好，
我们运行了一个多实例（单容器）的 Discourse 服务器约两年，托管了约 20 个 Discourse 实例。我们一直成功地进行常规更新。但最近两周，我们遇到了一个阻塞性问题：
- 我们仍然可以无问题地使用
./launcher rebuild app升级 Discourse； - 但无法添加任何新实例。在 .yml 文件中添加新实例并运行
./launcher rebuild app后，会出现以下错误（在 theme-transpiler.js 中）：
错误信息
[...]
I, [2023-10-26T14:20:43.219318 #1] INFO -- : > cd /var/www/discourse && sudo -E -u discourse bundle exec rake multisite:migrate
--------------------------------------------------------------------------------
1 次迁移失败！
迁移 amapyvette 失败
#<Errno::ENOENT: 没有这样的文件或目录 @ rb_sysopen - tmp/theme-transpiler.js>
/var/www/discourse/lib/discourse_js_processor.rb:139:in `read'
/var/www/discourse/lib/discourse_js_processor.rb:139:in `create_new_context'
/var/www/discourse/lib/discourse_js_processor.rb:155:in `block in v8'
/var/www/discourse/lib/discourse_js_processor.rb:153:in `synchronize'
/var/www/discourse/lib/discourse_js_processor.rb:153:in `v8'
/var/www/discourse/lib/discourse_js_processor.rb:168:in `block in v8_call'
/var/www/discourse/lib/discourse_js_processor.rb:167:in `synchronize'
/var/www/discourse/lib/discourse_js_processor.rb:167:in `v8_call'
/var/www/discourse/lib/discourse_js_processor.rb:192:in `perform'
/var/www/discourse/lib/pretty_text.rb:54:in `apply_es6_file'
/var/www/discourse/lib/pretty_text.rb:67:in `block in ctx_load_directory'
/var/www/discourse/lib/pretty_text.rb:66:in `each'
/var/www/discourse/lib/pretty_text.rb:66:in `ctx_load_directory'
/var/www/discourse/lib/pretty_text.rb:99:in `create_es6_context'
/var/www/discourse/lib/pretty_text.rb:138:in `block in v8'
/var/www/discourse/lib/pretty_text.rb:136:in `synchronize'
/var/www/discourse/lib/pretty_text.rb:136:in `v8'
/var/www/discourse/lib/pretty_text.rb:290:in `block in escape_emoji'
/var/www/discourse/lib/pretty_text.rb:665:in `block in protect'
/var/www/discourse/lib/pretty_text.rb:665:in `synchronize'
/var/www/discourse/lib/pretty_text.rb:665:in `protect'
/var/www/discourse/lib/pretty_text.rb:290:in `escape_emoji'
/var/www/discourse/app/models/emoji.rb:266:in `unicode_unescape'
/var/www/discourse/app/models/topic.rb:503:in `fancy_title'
/var/www/discourse/app/models/topic.rb:381:in `block in <class:Topic>'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:445:in `instance_exec'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:445:in `block in make_lambda'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:199:in `block (2 levels) in halting'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:687:in `block (2 levels) in default_terminator'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:686:in `catch'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:686:in `block in default_terminator'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:200:in `block in halting'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:595:in `block in invoke_before'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:595:in `each'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:595:in `invoke_before'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:116:in `block in run_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/autosave_association.rb:370:in `around_save_collection_association'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:127:in `block in run_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:138:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:929:in `_run_save_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/callbacks.rb:455:in `create_or_update'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/timestamp.rb:126:in `create_or_update'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/persistence.rb:648:in `save!'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/validations.rb:53:in `save!'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:302:in `block in save!'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:354:in `block in with_transaction_returning_status'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/database_statements.rb:314:in `transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:350:in `with_transaction_returning_status'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:302:in `save!'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/suppressor.rb:54:in `save!'
/var/www/discourse/app/models/category.rb:420:in `block in create_category_definition'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/database_statements.rb:314: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/app/models/category.rb:409:in `create_category_definition'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:400:in `block in make_lambda'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:236:in `block in halting_and_conditional'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:599:in `block in invoke_after'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:599:in `each'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:599:in `invoke_after'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:108:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:929:in `_run_create_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/callbacks.rb:459:in `_create_record'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/timestamp.rb:108:in `_create_record'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/persistence.rb:1069:in `create_or_update'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/callbacks.rb:455:in `block in create_or_update'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:118:in `block in run_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/autosave_association.rb:370:in `around_save_collection_association'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:127:in `block in run_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:138:in `run_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activesupport-7.0.7/lib/active_support/callbacks.rb:929:in `_run_save_callbacks'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/callbacks.rb:455:in `create_or_update'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/timestamp.rb:126:in `create_or_update'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/persistence.rb:648:in `save!'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/validations.rb:53:in `save!'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:302:in `block in save!'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:354:in `block in with_transaction_returning_status'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/connection_adapters/abstract/database_statements.rb:314:in `transaction'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:350:in `with_transaction_returning_status'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/transactions.rb:302:in `save!'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/activerecord-7.0.7/lib/active_record/suppressor.rb:54:in `save!'
/var/www/discourse/lib/seed_data/categories.rb:136:in `create_category'
/var/www/discourse/lib/seed_data/categories.rb:15:in `block (2 levels) in create'
/var/www/discourse/lib/seed_data/categories.rb:15:in `each'
/var/www/discourse/lib/seed_data/categories.rb:15:in `block in create'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/i18n-1.14.1/lib/i18n.rb:322:in `with_locale'
/var/www/discourse/lib/seed_data/categories.rb:14:in `create'
(eval):5:in `block (2 levels) in run_file'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:46:in `eval'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:46:in `block (2 levels) in run_file'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:58:in `block in open'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:57:in `open'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:57:in `open'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:36:in `block in run_file'
/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/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:35:in `run_file'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:26:in `block in run'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:25:in `each'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/seed-fu/runner.rb:25:in `run'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/discourse-seed-fu-2.3.12/lib/discourse-seed-fu.rb:29:in `seed'
/var/www/discourse/lib/tasks/db.rake:205:in `block (3 levels) in <main>'
/var/www/discourse/lib/tasks/db.rake:159:in `block (3 levels) in execute_concurrently'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rails_multisite-5.0.0/lib/rails_multisite/connection_management.rb:280:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rails_multisite-5.0.0/lib/rails_multisite/connection_management.rb:79:in `with_connection'
/var/www/discourse/lib/tasks/db.rake:157:in `block (2 levels) in execute_concurrently'
[...]
失败
--------------------
Pups::ExecError: cd /var/www/discourse && sudo -E -u discourse bundle exec rake multisite:migrate 执行失败，返回状态 #<Process::Status: pid 903 exit 1>
失败位置：/usr/local/lib/ruby/gems/3.2.0/gems/pups-1.2.1/lib/pups/exec_command.rb:132:in `spawn'
执行失败，参数为 "cd /var/www/discourse && sudo -E -u discourse bundle exec rake multisite:migrate"
引导失败，退出代码为 1
** 引导失败 ** 请向上滚动查找更早的错误消息，可能不止一条。
./discourse-doctor 可能有助于诊断问题。
额外上下文：
- 与之前添加实例的唯一区别似乎是，我们按照 此指南 迁移了一个实例。
- 根据 此帖子，我尝试移除所有插件（通过注释掉它们），但问题依旧。
- （为完整性起见提及），几周前我们 增加了 PostgreSQL 的并发连接数至 200。
您是否有任何解决此问题的建议？
！
