你好！
Discourse 版本：3.5.0.beta2-dev(176ee0bf60)
托管于：VPS - Centminmod (131.00stable) on Alma8
问题：电子邮件偶尔发送失败
我的 VPS 上有两个 vHost。一个运行 Xenforo，一个运行 Discourse。
我的 Xenforo 主机可以全天候正常发送电子邮件。而 Discourse 似乎大约每 24 小时失败一次，显示“有 [数量增加] 个电子邮件作业失败。请检查您的 app.yml 并确保邮件服务器设置正确。请查看 Sidekiq 中的失败作业。”
我可以通过重启 docker 服务来暂时“解决”问题。邮件流恢复。
我确信邮件设置是正确的。重启 docker 服务后，我可以访问 admin –> email –> server setup & logs –> settings 并发送一封测试邮件。
一旦失败，我就无法发送。
我注意到大量 Sidekiq 内存占用过高（使用 5xxM），导致 Fastserver-app 重启。
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:130:in `block in warn'
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `block in dispatch'
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `each'
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `dispatch'
activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:130:in `warn'
/var/www/discourse/lib/demon/sidekiq.rb:55:in `block in rss_memory_check'
/var/www/discourse/lib/demon/sidekiq.rb:49:in `each'
/var/www/discourse/lib/demon/sidekiq.rb:49:in `rss_memory_check'
config/unicorn.conf.rb:132:in `block (2 levels) in reload'
我还看到 Job exception: no address for meta.discourse.org(ResolvError)
excon-1.2.4/lib/excon/socket.rb:191:in `connect'
excon-1.2.4/lib/excon/ssl_socket.rb:194:in `connect'
excon-1.2.4/lib/excon/socket.rb:60:in `initialize'
excon-1.2.4/lib/excon/ssl_socket.rb:10:in `initialize'
excon-1.2.4/lib/excon/connection.rb:487:in `new'
excon-1.2.4/lib/excon/connection.rb:487:in `socket'
excon-1.2.4/lib/excon/connection.rb:120:in `request_call'
excon-1.2.4/lib/excon/middlewares/mock.rb:57:in `request_call'
excon-1.2.4/lib/excon/middlewares/instrumentor.rb:34:in `request_call'
excon-1.2.4/lib/excon/middlewares/idempotent.rb:19:in `request_call'
excon-1.2.4/lib/excon/middlewares/base.rb:22:in `request_call'
excon-1.2.4/lib/excon/middlewares/decompress.rb:14:in `request_call'
excon-1.2.4/lib/excon/middlewares/base.rb:22:in `request_call'
excon-1.2.4/lib/excon/connection.rb:293:in `request'
/var/www/discourse/lib/discourse_updates.rb:136:in `new_features_payload'
/var/www/discourse/app/jobs/scheduled/check_new_features.rb:24:in `execute'
/var/www/discourse/app/jobs/base.rb:316:in `block (2 levels) in perform'
rails_multisite-6.1.0/lib/rails_multisite/connection_management/null_instance.rb:49:in `with_connection'
rails_multisite-6.1.0/lib/rails_multisite/connection_management.rb:21:in `with_connection'
/var/www/discourse/app/jobs/base.rb:303:in `block in perform'
/var/www/discourse/app/jobs/base.rb:299:in `each'
/var/www/discourse/app/jobs/base.rb:299:in `perform'
/var/www/discourse/app/jobs/base.rb:379:in `perform'
mini_scheduler-0.18.0/lib/mini_scheduler/manager.rb:137:in `process_queue'
mini_scheduler-0.18.0/lib/mini_scheduler/manager.rb:77:in `worker_loop'
mini_scheduler-0.18.0/lib/mini_scheduler/manager.rb:63:in `block (2 levels) in ensure_worker_threads'
我有一段时间没有更改过此服务器关于 docker 的配置。我更新了内核/php 和此 docker 之外的其他服务。
自从我更新了 discourse 版本后，问题最近变得更加频繁。在此之前它一直很稳定。
我的 DNS 是 8.8.8.8 和 8.8.4.4。
任何建议都将不胜感激！