新更新存在问题：调试选项

Isambard · 2024 年8 月 29 日 13:16

我注意到最近的更新存在一些问题。我刚从 3.4.0 beta1 更新到最新版本（3.4.0.beta2-dev），网站似乎可以正常工作，但在一段时间后（2 小时内），网站停止响应（我通过 cloudflare 收到主机错误）。我仍然保留着旧的 docker（分离了 app/db），所以将代理指向旧的 docker 容器，它仍然可以工作。

我正在尝试找出最佳的调试方法。有没有办法为 docker 分配一个临时的不同主机名来单独调试实例（而不必将数据库重写为新条目）？

Isambard · 2024 年8 月 29 日 13:18

是否可以从命令行查看日志？

merefield · 2024 年8 月 29 日 13:35

是的，请查看 /var/discourse/shared/standalone/log/rails

Isambard · 2024 年8 月 29 日 13:49

似乎有很多 Redis 错误，尽管我回滚到旧的 docker 容器后仍然存在。

E, [2024-08-29T13:47:47.112726 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `public_send'
E, [2024-08-29T13:47:47.112738 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `block (3 levels) in <class:DiscourseRedis>'
E, [2024-08-29T13:47:47.112748 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:29:in `ignore_readonly'
E, [2024-08-29T13:47:47.112768 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `block (2 levels) in <class:DiscourseRedis>'
E, [2024-08-29T13:47:47.112781 #74] ERROR -- : /var/www/discourse/app/jobs/regular/run_heartbeat.rb:16:in `last_heartbeat'
E, [2024-08-29T13:47:47.112790 #74] ERROR -- : config/unicorn.conf.rb:182:in `check_sidekiq_heartbeat'
E, [2024-08-29T13:47:47.112799 #74] ERROR -- : config/unicorn.conf.rb:269:in `master_sleep'
E, [2024-08-29T13:47:47.112807 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/lib/unicorn/http_server.rb:295:in `join'
E, [2024-08-29T13:47:47.112815 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/bin/unicorn:128:in `<top (required)>'
E, [2024-08-29T13:47:47.112823 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `load'
E, [2024-08-29T13:47:47.112831 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `<main>'
E, [2024-08-29T13:47:57.124969 #74] ERROR -- : master loop error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) (Redis::CannotConnectError)
E, [2024-08-29T13:47:57.125051 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:398:in `rescue in establish_connection'
E, [2024-08-29T13:47:57.125063 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:379:in `establish_connection'
E, [2024-08-29T13:47:57.125072 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:115:in `block in connect'
E, [2024-08-29T13:47:57.125080 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:344:in `with_reconnect'
E, [2024-08-29T13:47:57.125088 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:114:in `connect'
E, [2024-08-29T13:47:57.125109 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:409:in `ensure_connected'
E, [2024-08-29T13:47:57.125118 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:269:in `block in process'
E, [2024-08-29T13:47:57.125132 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:356:in `logging'
E, [2024-08-29T13:47:57.125142 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:268:in `process'
E, [2024-08-29T13:47:57.125150 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:161:in `call'
E, [2024-08-29T13:47:57.125159 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-3.3.1/lib/mini_profiler/profiling_methods.rb:89:in `block in profile_method'
E, [2024-08-29T13:47:57.125167 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:270:in `block in send_command'
E, [2024-08-29T13:47:57.125181 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:269:in `synchronize'
E, [2024-08-29T13:47:57.125190 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:269:in `send_command'
E, [2024-08-29T13:47:57.125198 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/commands/strings.rb:191:in `get'
E, [2024-08-29T13:47:57.125207 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `public_send'
E, [2024-08-29T13:47:57.125216 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `block (3 levels) in <class:DiscourseRedis>'
E, [2024-08-29T13:47:57.125224 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:29:in `ignore_readonly'
E, [2024-08-29T13:47:57.125232 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `block (2 levels) in <class:DiscourseRedis>'
E, [2024-08-29T13:47:57.125241 #74] ERROR -- : /var/www/discourse/app/jobs/regular/run_heartbeat.rb:16:in `last_heartbeat'
E, [2024-08-29T13:47:57.125264 #74] ERROR -- : config/unicorn.conf.rb:182:in `check_sidekiq_heartbeat'
E, [2024-08-29T13:47:57.125272 #74] ERROR -- : config/unicorn.conf.rb:269:in `master_sleep'
E, [2024-08-29T13:47:57.125283 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/lib/unicorn/http_server.rb:295:in `join'
E, [2024-08-29T13:47:57.125291 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/bin/unicorn:128:in `<top (required)>'
E, [2024-08-29T13:47:57.125299 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `load'
E, [2024-08-29T13:47:57.125308 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `<main>'
E, [2024-08-29T13:48:07.136412 #74] ERROR -- : master loop error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) (Redis::CannotConnectError)
E, [2024-08-29T13:48:07.136504 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:398:in `rescue in establish_connection'
E, [2024-08-29T13:48:07.136517 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:379:in `establish_connection'
E, [2024-08-29T13:48:07.136526 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:115:in `block in connect'
E, [2024-08-29T13:48:07.136534 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:344:in `with_reconnect'
E, [2024-08-29T13:48:07.136542 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:114:in `connect'
E, [2024-08-29T13:48:07.136550 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:409:in `ensure_connected'
E, [2024-08-29T13:48:07.136559 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:269:in `block in process'
E, [2024-08-29T13:48:07.136567 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:356:in `logging'
E, [2024-08-29T13:48:07.136590 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:268:in `process'
E, [2024-08-29T13:48:07.136599 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:161:in `call'
E, [2024-08-29T13:48:07.136607 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-3.3.1/lib/mini_profiler/profiling_methods.rb:89:in `block in profile_method'
E, [2024-08-29T13:48:07.136615 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:270:in `block in send_command'
E, [2024-08-29T13:48:07.136626 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:269:in `synchronize'
E, [2024-08-29T13:48:07.136638 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:269:in `send_command'
E, [2024-08-29T13:48:07.136646 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/commands/strings.rb:191:in `get'
E, [2024-08-29T13:48:07.136656 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `public_send'
E, [2024-08-29T13:48:07.136665 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `block (3 levels) in <class:DiscourseRedis>'
E, [2024-08-29T13:48:07.136674 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:29:in `ignore_readonly'
E, [2024-08-29T13:48:07.136682 #74] ERROR -- : /var/www/discourse/lib/discourse_redis.rb:148:in `block (2 levels) in <class:DiscourseRedis>'
E, [2024-08-29T13:48:07.136690 #74] ERROR -- : /var/www/discourse/app/jobs/regular/run_heartbeat.rb:16:in `last_heartbeat'
E, [2024-08-29T13:48:07.136698 #74] ERROR -- : config/unicorn.conf.rb:182:in `check_sidekiq_heartbeat'
E, [2024-08-29T13:48:07.136707 #74] ERROR -- : config/unicorn.conf.rb:269:in `master_sleep'
E, [2024-08-29T13:48:07.136716 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/lib/unicorn/http_server.rb:295:in `join'
E, [2024-08-29T13:48:07.136735 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/bin/unicorn:128:in `<top (required)>'
E, [2024-08-29T13:48:07.136744 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `load'
E, [2024-08-29T13:48:07.136752 #74] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `<main>'

merefield · 2024 年8 月 29 日 13:53

我想知道重启服务器是否值得？

Isambard · 2024 年8 月 29 日 14:07

我的理解是，每个“app”容器都托管自己的 Redis 服务器，因此一个 Docker 容器不应该能够“污染”另一个 Docker 容器的 Redis 服务器？

查看日志，所有旧日志似乎都非常简短，有些只有 20 字节长。

仅今天，unicorn.stdout.log-20240829 中就有 8.1MB 的错误消息，我猜它已经被轮换了，而 unicorn.stdout.log 中的错误消息也即将达到 8MB。

stderr.log 中的相应错误：

Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] Error connecting to Redis on localhost:6379 (Redis::TimeoutError)

Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] Job exception: Error connecting to Redis on localhost:6379 (Redis::TimeoutError)
sidekiq-exception
Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] Job exception: Error connecting to Redis on localhost:6379 (Redis::TimeoutError)
sidekiq-exception
Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 2 [default] Unexpected error in MiniSchedulerLongRunningJobLogger thread : Redis::CannotConnectError : Error connecting to Redis on localhost:6379 (Redis::TimeoutError)
discourse-exception
Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] Job exception: Error connecting to Redis on localhost:6379 (Redis::TimeoutError)
sidekiq-exception
Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] heartbeat: Error connecting to Redis on localhost:6379 (Redis::TimeoutError)

Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] Job exception: Error connecting to Redis on localhost:6379 (Redis::TimeoutError)
sidekiq-exception
Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] Job exception: Error connecting to Redis on localhost:6379 (Redis::TimeoutError)
sidekiq-exception
Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] Error connecting to Redis on localhost:6379 (Redis::TimeoutError)

Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 2 [default] Unexpected error in MiniSchedulerLongRunningJobLogger thread : Redis::CannotConnectError : Error connecting to Redis on localhost:6379 (Redis::TimeoutError)
discourse-exception
Failed to report error: Error connecting to Redis on localhost:6379 (Redis::TimeoutError) 3 [default] heartbeat: Error connecting to Redis on localhost:6379 (Redis::TimeoutError)
```

时间似乎与更新一致。

Isambard · 2024 年8 月 29 日 14:13

我真是太傻了，持续的错误日志是因为更新后的 Docker 实例仍在运行！我停止了更新后的 Docker 实例，日志又恢复了平静。

我将看看重启它是否会产生相同的错误。

Isambard · 2024 年8 月 29 日 14:26

我认为这是与此相同的错误：Error connecting to Redis

也许是在启动时某种类型的竞态条件？

另外，我们能否在 unicorn.stderr.log 中添加时间戳？这将有助于调试！

Isambard · 2024 年8 月 29 日 15:12

启动器重建日志保存在何处？我想查看它们，看看是否有任何线索能解释为什么会发生这种情况。

merefield · 2024 年8 月 29 日 15:23

不，我认为它只是打印到控制台。

下次你可以这样做：

./launcher rebuild app > buildlog.txt

pfaffman · 2024 年8 月 29 日 16:43

但是它们使用相同的存储，所以如果你不停止新的容器，就会发生糟糕的事情。

Isambard · 2024 年8 月 30 日 06:43

不幸的是，运行半天后，同样的问题又出现了。

这里 Docker 被重启，并在 Thu Aug 29 15:58:34 UTC 2024 这一行切换为在线状态：

I, [2024-08-29T14:13:32.515947 #68]  INFO -- : Refreshing Gem list
I, [2024-08-29T14:13:36.905305 #68]  INFO -- : listening on addr=127.0.0.1:3000 fd=15
I, [2024-08-29T14:13:42.283988 #68]  INFO -- : starting 1 supervised sidekiqs
I, [2024-08-29T14:13:46.693381 #317]  INFO -- : Loading Sidekiq in process id 317
I, [2024-08-29T14:13:47.963367 #356]  INFO -- : worker=0 ready
I, [2024-08-29T14:13:49.811765 #420]  INFO -- : worker=1 ready
I, [2024-08-29T14:13:50.990474 #68]  INFO -- : master process ready
I, [2024-08-29T14:13:51.394171 #538]  INFO -- : worker=2 ready
I, [2024-08-29T14:13:52.632528 #688]  INFO -- : worker=3 ready
I, [2024-08-29T14:13:53.468952 #824]  INFO -- : worker=4 ready
I, [2024-08-29T14:13:54.848829 #945]  INFO -- : worker=5 ready
I, [2024-08-29T14:13:55.276090 #1084]  INFO -- : worker=6 ready
I, [2024-08-29T14:13:55.663733 #1206]  INFO -- : worker=7 ready
*****Thu Aug 29 15:58:34 UTC 2024*****
I, [2024-08-29T16:19:42.701388 #2847461]  INFO -- : Loading Sidekiq in process id 2847461
[STARTED]
'system' has started the backup!
Marking backup as running...

我不确定为什么在 Loading Sidekiq in process id 2847461 之后没有出现相同的 INFO worker= 行，以及这是否有重要意义。

容器在备份开始前运行正常，直到午夜左右备份启动。以下是备份完成后的日志（注意内存和磁盘空间都很充足）：

Finalizing backup...
Creating archive: discourse-2024-08-29-033737-v20240731190511.tar.gz
Making sure archive does not already exist...
Creating empty archive...
Archiving data dump...
Archiving uploads...
Removing tmp '/var/www/discourse/tmp/backups/default/2024-08-29-033737' directory...
Gzipping archive, this may take a while...
Executing the after_create_hook for the backup...
Deleting old backups...
Cleaning stuff up...
Removing '.tar' leftovers...
Marking backup as finished...
Refreshing disk stats...
Finished!
[SUCCESS]
I, [2024-08-29T07:39:13.994558 #74]  INFO -- : Refreshing Gem list
I, [2024-08-29T07:39:22.139288 #74]  INFO -- : listening on addr=127.0.0.1:3000 fd=15
I, [2024-08-29T07:39:28.538100 #74]  INFO -- : starting 1 supervised sidekiqs
I, [2024-08-29T07:39:32.817733 #338]  INFO -- : Loading Sidekiq in process id 338
I, [2024-08-29T07:39:33.888697 #377]  INFO -- : worker=0 ready
I, [2024-08-29T07:39:35.956335 #449]  INFO -- : worker=1 ready
I, [2024-08-29T07:39:37.233970 #74]  INFO -- : master process ready
I, [2024-08-29T07:39:37.437223 #575]  INFO -- : worker=2 ready
I, [2024-08-29T07:39:38.974154 #718]  INFO -- : worker=3 ready
I, [2024-08-29T07:39:39.789086 #842]  INFO -- : worker=4 ready
I, [2024-08-29T07:39:40.417719 #960]  INFO -- : worker=5 ready
I, [2024-08-29T07:39:40.993249 #1084]  INFO -- : worker=6 ready
I, [2024-08-29T07:39:41.395415 #1236]  INFO -- : worker=7 ready
I, [2024-08-29T07:43:38.285891 #74]  INFO -- : master reopening logs...
I, [2024-08-29T07:43:38.288650 #2790085]  INFO -- : Sidekiq reopening logs...
I, [2024-08-29T07:43:38.658839 #454]  INFO -- : worker=1 reopening logs...
I, [2024-08-29T07:43:53.315240 #845]  INFO -- : worker=4 reopening logs...
I, [2024-08-29T07:43:53.315258 #1121415]  INFO -- : worker=0 reopening logs...
I, [2024-08-29T07:43:53.318146 #720]  INFO -- : worker=3 reopening logs...
I, [2024-08-29T07:43:53.318152 #1256]  INFO -- : worker=7 reopening logs...
I, [2024-08-29T07:43:53.319042 #586]  INFO -- : worker=2 reopening logs...
I, [2024-08-29T07:43:53.322139 #960]  INFO -- : worker=5 reopening logs...
I, [2024-08-29T07:43:53.330282 #1109]  INFO -- : worker=6 reopening logs...
E, [2024-08-29T09:24:44.381913 #377] ERROR -- : app error: Connection timed out (Redis::TimeoutError)
E, [2024-08-29T09:24:44.382304 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/connectio
n/ruby.rb:58:in `block in _read_from_socket'
E, [2024-08-29T09:24:44.382516 #377] ERROR -- : <internal:kernel>:187:in `loop'
E, [2024-08-29T09:24:44.382536 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/connectio
n/ruby.rb:54:in `_read_from_socket'
E, [2024-08-29T09:24:44.382687 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/connectio
n/ruby.rb:47:in `gets'
E, [2024-08-29T09:24:44.382782 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/connection/ruby.rb:382:in `read'
E, [2024-08-29T09:24:44.383064 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:311:in `block in read'
E, [2024-08-29T09:24:44.383269 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:299:in `io'
E, [2024-08-29T09:24:44.383293 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:310:in `read'
E, [2024-08-29T09:24:44.383304 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:161:in `block in call'
E, [2024-08-29T09:24:44.383313 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:279:in `block (2 levels) in process'
E, [2024-08-29T09:24:44.383323 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:411:in `ensure_connected'
E, [2024-08-29T09:24:44.383332 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:269:in `block in process'
E, [2024-08-29T09:24:44.383341 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:356:in `logging'
E, [2024-08-29T09:24:44.383349 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:268:in `process'
E, [2024-08-29T09:24:44.383358 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/client.rb:161:in `call'
E, [2024-08-29T09:24:44.383366 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-3.3.1/lib/mini_profiler/profiling_methods.rb:89:in `block in profile_method'
E, [2024-08-29T09:24:44.383375 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:270:in `block in send_command'
E, [2024-08-29T09:24:44.383384 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:269:in `synchronize'
E, [2024-08-29T09:24:44.383407 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis.rb:269:in `send_command'
E, [2024-08-29T09:24:44.383416 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/redis-4.8.1/lib/redis/commands/lists.rb:11:in `llen'
E, [2024-08-29T09:24:44.383425 #377] ERROR -- : /var/www/discourse/lib/rate_limiter.rb:192:in `is_under_limit?'
E, [2024-08-29T09:24:44.383434 #377] ERROR -- : /var/www/discourse/lib/rate_limiter.rb:72:in `can_perform?'
E, [2024-08-29T09:24:44.383443 #377] ERROR -- : /var/www/discourse/lib/middleware/request_tracker.rb:488:in `rate_limit'
E, [2024-08-29T09:24:44.383453 #377] ERROR -- : /var/www/discourse/lib/middleware/request_tracker.rb:322:in `call'
E, [2024-08-29T09:24:44.383461 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/actionpack-7.1.4/lib/action_dispatch/middleware/remote_ip.rb:92:in `call'
E, [2024-08-29T09:24:44.383470 #377] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rails_multisite-6.1.0/lib/rails_multisite/middleware.rb:26:in `call'
E, [2024-08-30T05:11:44.698172 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-7.1.4/lib/rails/engine.rb:536:in `call'
E, [2024-08-30T05:11:44.698180 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-7.1.4/lib/rails/railtie.rb:226:in `public_send'
E, [2024-08-30T05:11:44.698189 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/railties-7.1.4/lib/rails/railtie.rb:226:in `method_missing'
E, [2024-08-30T05:11:44.698199 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-2.2.9/lib/rack/urlmap.rb:74:in `block in call'
E, [2024-08-30T05:11:44.698207 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-2.2.9/lib/rack/urlmap.rb:58:in `each'
E, [2024-08-30T05:11:44.698216 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-2.2.9/lib/rack/urlmap.rb:58:in `call'
E, [2024-08-30T05:11:44.698225 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/lib/unicorn/http_server.rb:634:in `process_client'
E, [2024-08-30T05:11:44.698233 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/lib/unicorn/http_server.rb:739:in `worker_loop'
E, [2024-08-30T05:11:44.698241 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/lib/unicorn/http_server.rb:547:in `spawn_missing_workers'
E, [2024-08-30T05:11:44.698261 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/lib/unicorn/http_server.rb:143:in `start'
E, [2024-08-30T05:11:44.698270 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/unicorn-6.1.0/bin/unicorn:128:in `<top (required)>'
E, [2024-08-30T05:11:44.698291 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `load'
E, [2024-08-30T05:11:44.698300 #420] ERROR -- : /var/www/discourse/vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `<main>'

Sidekiq 在备份后重启，两小时内开始出现 Redis 超时错误。不确定为什么是两小时内。也许这是因为早上首次加载站点所致。

有什么建议吗？我原本以为监控容器的启动就足够了，但如果错误可以在备份后通过 Sidekiq 的启动/停止再次触发，那我需要另寻他法。

我还发现了以下内容：

26 E, [2024-08-29T09:25:58.612452 #74] ERROR -- : worker=3 PID:718 running too long (29s), sending USR2 to dump thread backtraces
   27 E, [2024-08-29T09:25:58.612563 #74] ERROR -- : worker=4 PID:842 running too long (29s), sending USR2 to dump thread backtraces
   28 E, [2024-08-29T09:25:58.612587 #74] ERROR -- : worker=5 PID:960 running too long (29s), sending USR2 to dump thread backtraces
   29 E, [2024-08-29T09:25:59.613766 #74] ERROR -- : worker=3 PID:718 running too long (30s), sending USR2 to dump thread backtraces
   30 E, [2024-08-29T09:25:59.613874 #74] ERROR -- : worker=4 PID:842 running too long (30s), sending USR2 to dump thread backtraces
   31 E, [2024-08-29T09:25:59.613897 #74] ERROR -- : worker=5 PID:960 running too long (30s), sending USR2 to dump thread backtraces
   32 E, [2024-08-29T09:25:59.613931 #74] ERROR -- : worker=6 PID:1084 running too long (29s), sending USR2 to dump thread backtraces

Isambard · 2024 年8 月 30 日 08:42

有没有办法让 Redis 使用不同的存储位置，例如 /var/log/redis，以便实现“热备”容器？

pfaffman · 2024 年8 月 30 日 09:03

要有一个备用容器，您需要分离数据和 Web 容器。然后，多个容器可以针对相同的数据库和 Redis 运行。

Isambard · 2024 年8 月 30 日 10:18

我已经在使用外部数据库，所以我会将当前包含 Web 和 Redis 的容器拆分为单独的 Web 和 Redis 容器，然后为 Web 进行热备份。

因此，实际上是共享的数据库和 Redis 容器以及多个 Web 容器。

Isambard · 2024 年8 月 30 日 18:48

您是否有过分离 Redis 的经验？您会推荐还是不推荐这种设置？我有点担心偏离标准太远，不确定是否会陷入陷阱。

pfaffman · 2024 年8 月 30 日 18:56

您已经将数据库分离出来了。

是的，我以前这样做过，包括使用托管 Redis 和仅使用 Redis 容器。

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