2

得到一些：

Rack::Timeout::RequestTimeoutException: 请求等待 {7ms}，然后运行时间超过 15000ms

将 Rails 4.2.9 应用升级到 Rails 5.2.1.1 后。

这是由此处记录的rack-timeout gem提出的。

也就是说，我无法确定超时的根本原因。我可以从我的机器成功加载作为触发器的 URL，但显然其他用户遇到了问题。

任何有关如何解决此问题的帮助将不胜感激。

回溯（来自 Airbrake – 包括“代码块”）：

/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:603 in async_exec
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:603 in block (2 levels) in exec_no_cache
/gems/activesupport-5.2.1.1/lib/active_support/dependencies/interlock.rb:48 in block in permit_concurrent_loads
/gems/activesupport-5.2.1.1/lib/active_support/concurrency/share_lock.rb:187 in yield_shares
/gems/activesupport-5.2.1.1/lib/active_support/dependencies/interlock.rb:47 in permit_concurrent_loads
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:602 in block in exec_no_cache
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract_adapter.rb:579 in block (2 levels) in log
vendor/ruby-2.4.4/lib/ruby/2.4.0/monitor.rb:214 in mon_synchronize
212:
    mon_enter
213:
    begin
214:
      yield
215:
    ensure
216:
      mon_exit
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract_adapter.rb:578 in block in log
/gems/activesupport-5.2.1.1/lib/active_support/notifications/instrumenter.rb:23 in instrument
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract_adapter.rb:569 in log
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:601 in exec_no_cache
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:590 in execute_and_clear
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/postgresql/database_statements.rb:81 in exec_query
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:465 in select
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:57 in select_all
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract/query_cache.rb:99 in block in select_all
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract/query_cache.rb:122 in block in cache_sql
vendor/ruby-2.4.4/lib/ruby/2.4.0/monitor.rb:214 in mon_synchronize
212:
    mon_enter
213:
    begin
214:
      yield
215:
    ensure
216:
      mon_exit
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract/query_cache.rb:108 in cache_sql
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract/query_cache.rb:99 in select_all
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:81 in select_rows
/gems/activerecord-5.2.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:69 in select_value
/gems/activerecord-5.2.1.1/lib/active_record/relation/finder_methods.rb:322 in block in exists?
/gems/activerecord-5.2.1.1/lib/active_record/relation.rb:578 in skip_query_cache_if_necessary
/gems/activerecord-5.2.1.1/lib/active_record/relation/finder_methods.rb:322 in exists?
/gems/unread-0.10.1/lib/unread/readable.rb:124 in unread?
app/views/stories/_story.html.slim:4 in _app_views_stories__story_html_slim___4341629232572424476_47283389142580
2:
  - if story.time_capsule?
3:
    .flag = t("stories.time_capsule.label")
4:
  - elsif story.unread?(current_user)
5:
    .flag = t("stories.unread")
6:
  = link_to story_path(story), class: "open-block" do
/gems/actionview-5.2.1.1/lib/action_view/template.rb:159 in block in render
/gems/activesupport-5.2.1.1/lib/active_support/notifications.rb:168 in block in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications/instrumenter.rb:23 in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications.rb:168 in instrument
/gems/actionview-5.2.1.1/lib/action_view/template.rb:354 in instrument_render_template
/gems/actionview-5.2.1.1/lib/action_view/template.rb:157 in render
/gems/actionview-5.2.1.1/lib/action_view/renderer/partial_renderer.rb:344 in block in render_partial
/gems/actionview-5.2.1.1/lib/action_view/renderer/abstract_renderer.rb:44 in block in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications.rb:168 in block in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications/instrumenter.rb:23 in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications.rb:168 in instrument
/gems/actionview-5.2.1.1/lib/action_view/renderer/abstract_renderer.rb:43 in instrument
/gems/actionview-5.2.1.1/lib/action_view/renderer/partial_renderer.rb:333 in render_partial
/gems/actionview-5.2.1.1/lib/action_view/renderer/partial_renderer.rb:312 in render
/gems/actionview-5.2.1.1/lib/action_view/renderer/renderer.rb:49 in render_partial
/gems/actionview-5.2.1.1/lib/action_view/helpers/rendering_helper.rb:36 in render
app/views/stories/index.html.slim:19 in block in _app_views_stories_index_html_slim___2178368229094429886_47283376767280
17:
      ul.stories.blocks
18:
        - @stories.each do |story|
19:
          = render "stories/story", story: story
20:
      = render 'comments/compact_list'
21:
    - else
app/views/stories/index.html.slim:18 in each
16:
    - if @stories.to_a.any?
17:
      ul.stories.blocks
18:
        - @stories.each do |story|
19:
          = render "stories/story", story: story
20:
      = render 'comments/compact_list'
app/views/stories/index.html.slim:18 in _app_views_stories_index_html_slim___2178368229094429886_47283376767280
16:
    - if @stories.to_a.any?
17:
      ul.stories.blocks
18:
        - @stories.each do |story|
19:
          = render "stories/story", story: story
20:
      = render 'comments/compact_list'
/gems/actionview-5.2.1.1/lib/action_view/template.rb:159 in block in render
/gems/activesupport-5.2.1.1/lib/active_support/notifications.rb:168 in block in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications/instrumenter.rb:23 in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications.rb:168 in instrument
/gems/actionview-5.2.1.1/lib/action_view/template.rb:354 in instrument_render_template
/gems/actionview-5.2.1.1/lib/action_view/template.rb:157 in render
/gems/actionview-5.2.1.1/lib/action_view/renderer/template_renderer.rb:54 in block (2 levels) in render_template
/gems/actionview-5.2.1.1/lib/action_view/renderer/abstract_renderer.rb:44 in block in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications.rb:168 in block in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications/instrumenter.rb:23 in instrument
/gems/activesupport-5.2.1.1/lib/active_support/notifications.rb:168 in instrument
/gems/actionview-5.2.1.1/lib/action_view/renderer/abstract_renderer.rb:43 in instrument
/gems/actionview-5.2.1.1/lib/action_view/renderer/template_renderer.rb:53 in block in render_template
/gems/actionview-5.2.1.1/lib/action_view/renderer/template_renderer.rb:61 in render_with_layout
/gems/actionview-5.2.1.1/lib/action_view/renderer/template_renderer.rb:52 in render_template
/gems/actionview-5.2.1.1/lib/action_view/renderer/template_renderer.rb:16 in render
/gems/actionview-5.2.1.1/lib/action_view/renderer/renderer.rb:44 in render_template
/gems/actionview-5.2.1.1/lib/action_view/renderer/renderer.rb:25 in render
/gems/actionview-5.2.1.1/lib/action_view/rendering.rb:103 in _render_template
/gems/actionpack-5.2.1.1/lib/action_controller/metal/streaming.rb:219 in _render_template
/gems/actionview-5.2.1.1/lib/action_view/rendering.rb:84 in render_to_body
/gems/actionpack-5.2.1.1/lib/action_controller/metal/rendering.rb:52 in render_to_body
/gems/actionpack-5.2.1.1/lib/action_controller/metal/renderers.rb:142 in render_to_body
/gems/actionpack-5.2.1.1/lib/abstract_controller/rendering.rb:25 in render
/gems/actionpack-5.2.1.1/lib/action_controller/metal/rendering.rb:36 in render
/gems/actionpack-5.2.1.1/lib/action_controller/metal/instrumentation.rb:46 in block (2 levels) in render
/gems/activesupport-5.2.1.1/lib/active_support/core_ext/benchmark.rb:14 in block in ms
vendor/ruby-2.4.4/lib/ruby/2.4.0/benchmark.rb:308 in realtime
306:
  def realtime # :yield:
307:
    r0 = Process.clock_gettime(Process::CLOCK_MONOTONIC)
308:
    yield
309:
    Process.clock_gettime(Process::CLOCK_MONOTONIC) - r0
310:
  end
/gems/activesupport-5.2.1.1/lib/active_support/core_ext/benchmark.rb:14 in ms
/gems/actionpack-5.2.1.1/lib/action_controller/metal/instrumentation.rb:46 in block in render
4

3 回答 3

1

我有一个非常相似的问题。我的情况是 30 多岁。有人告诉我这是 Heroku 的硬性限制。但现在看到你有 15 秒的超时，还有别的东西。也许他们在过去 9 个月中增加了它？（不太可能）或者这取决于计划。或者也许它与 Heroku 无关，它是rack-timeout做这件事的宝石。

根据他们的自述文件。您可以将RACK_TIMEOUT_SERVICE_TIMEOUT环境变量更新为更大的值

或者如果您不需要生产错误来报告您缓慢的端点，请删除 gem...叹息

而且我确实已经将该 var 设置为 30s

我把它撞到了 60 年代，我会在几天后告诉你是否可以修复它

https://github.com/sharpstone/rack-timeout#rails-apps

更新：该 gem 确实提前终止了请求，但 heroku 限制也存在。如果您禁用该 gem，您将在日志或指标屏幕中看到 heroku 返回的 H12。

有关硬限制的更多详细信息，请参阅本文

https://devcenter.heroku.com/articles/limits

于 2019-10-01T11:15:08.790 回答
0

我解决了这个问题，删除：

gem 'rack-timeout'

然后运行

rails server
于 2021-03-10T01:15:17.657 回答
0

如果有帮助，我通过在终端中运行以下命令解决了这个问题：

export RACK_TIMEOUT_SERVICE_TIMEOUT=30
于 2021-07-12T10:14:29.770 回答