ruby-on-rails - unicorn timeout handling

Question

I'm wondering what is the best way to track unicorn timeouts from my app.

There are some bits of the app which are slow and they currently timeout quietly. I could increase the timeout but that is shoving the problem under the carpet. Ideally, I would like to get an airbrake notification or something of that effect. I'm not looking for a performance guide, just a way to efficiently and reliably get informed about timeouts.

How have other people handled timeouts from their rails app using unicorn? scan the nginx error log? plug in a handler in unicorn config? handler in nginx config?

[Ubuntu 12.04+nginx+unicorn+rails 3.2+ruby 1.9.3]

Answer 1

请参阅 Unicorn 手册网站的“配置器”部分。有一系列关于积压和超时的项目应该可以为您提供所需的控制。

Answer 2

我倾向于在New Relic上创建一个帐户，使用他们的newrelic_rpmgem 并在他们的 Web 应用程序中收集与此问题相关的性能数据。NR 提供对这种情况有用的免费帐户级别。

使用这种有点懒惰的检测方法的好处是双重的：在您的应用程序中不需要自定义检测实现；并且无需检查您的下游网络服务器日志中是否存在 503 服务器错误。