Rails Mailer“ Net :: OpenTimeout：执行到期”仅在生产服务器上例外 [英] Rails Mailer "Net::OpenTimeout: execution expired" Exception on production server only

问题描述

我在Ubuntu 12.04 TLS VPS上使用Ruby MRI 2.0.0和Rails 3.2.12，并尝试在我的应用中设置电子邮件通知。 几天前运行良好，但现在不再工作了。我的网站托管服务器是OVH。

I am using Ruby MRI 2.0.0 and Rails 3.2.12 on a Ubuntu 12.04 TLS VPS and attempting to setup email notifications in my app. It was working fine a few days ago, but not anymore. My web host is OVH.

我的SMTP设置：

config.action_mailer.perform_deliveries = true
config.action_mailer.raise_delivery_errors = true

ActionMailer::Base.smtp_settings = {
  :address              => "smtp.gmail.com",
  :port                 => 587,
  :user_name            => '[e-mail]',
  :password             => 'secret',
  :authentication       => 'plain',
  :enable_starttls_auto => true
}

使用 RAILS_ENV =生产导轨控制台：

class MyMailer < ActionMailer::Base
  def test_email
    sender     = "[e-mail]"
    receiver   = "[e-mail]"
    mail from: sender, to: receiver, subject: "Hello!", body: "World!!"
  end
end
 => nil

MyMailer.test_email.deliver

输出：

Net::OpenTimeout: execution expired
    from ~/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/net/smtp.rb:540:in `initialize'
    from ~/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/net/smtp.rb:540:in `open'
    from ~/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/net/smtp.rb:540:in `tcp_socket'
    from ~/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/net/smtp.rb:550:in `block in do_start'
    from ~/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/net/smtp.rb:549:in `do_start'
    from ~/.rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/net/smtp.rb:519:in `start'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/mail-2.4.4/lib/mail/network/delivery_methods/smtp.rb:144:in `deliver!'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/mail-2.4.4/lib/mail/message.rb:2034:in `do_delivery'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/mail-2.4.4/lib/mail/message.rb:229:in `block in deliver'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/actionmailer-3.2.12/lib/action_mailer/base.rb:415:in `block in deliver_mail'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/activesupport-3.2.12/lib/active_support/notifications.rb:123:in `block in instrument'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/activesupport-3.2.12/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/activesupport-3.2.12/lib/active_support/notifications.rb:123:in `instrument'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/actionmailer-3.2.12/lib/action_mailer/base.rb:413:in `deliver_mail'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/mail-2.4.4/lib/mail/message.rb:229:in `deliver'
    from (irb):28
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/railties-3.2.12/lib/rails/commands/console.rb:47:in `start'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/railties-3.2.12/lib/rails/commands/console.rb:8:in `start'
    from ~/.rvm/gems/ruby-2.0.0-p0@mygemset/gems/railties-3.2.12/lib/rails/commands.rb:41:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'2.0.0p0 :029 >

我尝试了以下操作：

• exception_notification 宝石是几天前添加到设置中的。我试图在 Gemfile 中注释其行及其匹配的配置，然后运行 bundle install 。重新启动服务器后，即使删除并重新创建gemset，问题仍然存在。


• 在虚拟机上对其进行测试（与VPS完全相同的设置，包括iptables规则）： 有效


• 禁用iptables规则：不起作用


• 从手动连接到Gmail使用openssl的VPS：可行（因此这不是防火墙问题-请参见此处：通过命令行连接到smtp.gmail.com ）；


• 在Gmail帐户选项中启用IMAP（已禁用）：不起作用


• 使用其他Gmail帐户：不起作用


• 替换Ruby 2.0.0作者：Ruby 1.9.3


• 升级到Rails 3.2.13

• The exception_notification gem was added to the setup a few days ago. I tried to comment its line in Gemfile as well as its matching configuration, and run bundle install. After restarting the server, the issue is still present, even if I delete and recreate the gemset.
• Test it out on a virtual machine (exact same setup as the VPS including iptables rules): works
• Disable iptables rules: does not work
• Manually connect to Gmail from the VPS using openssl: works (so this is not a firewall issue - see here: Connecting to smtp.gmail.com via command line);
• Enable IMAP in Gmail account options (it was disabled): does not work
• Use a different Gmail account: does not works
• Replace Ruby 2.0.0 by Ruby 1.9.3
• Upgrade to Rails 3.2.13

有人可以

谢谢！

推荐答案

问题是由于生产服务器上的IPv6配置错误，现已解决。

The issue was due to an IPv6 misconfiguration on the production server and has now been fixed.

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