ruby – Mandrill-api Excon :: Errors :: SocketError

我在rails应用程序中有(或多或少)以下行,

mandrill ||= Mandrill::API.new const(:API)[:MANDRILL_APIKEY]
... (constructing the message,content,etc)
mandrill.messages.send_template templ,template_content,message,true

问题是在生产中运行时,偶尔会返回以下错误.

Excon::Errors::SocketError (EOFError (EOFError)):
app/mailers/mailer.rb:24:in `send'
....

我不知道如何调试此问题.如果有人能让我了解调试方法,我非常感谢.

宝石信息：

> mandrill-api(1.0.33)
> excon(0.16.10)

生产环境：

sudo bundle exec rake RAILS_ENV=production about


About your application's environment
Ruby version              1.9.3 (x86_64-linux)
RubyGems version          1.8.11
Rack version              1.4
Rails version             3.2.13
Active Record version     3.2.13
Action Pack version       3.2.13
Active Resource version   3.2.13
Action Mailer version     3.2.13
Active Support version    3.2.13
Middleware                Rack::Cache,Rack::Lock,#<ActiveSupport::Cache::Strategy::LocalCache::Middleware:0x00000001e72330>,Rack::Runtime,Rack::MethodOverride,ActionDispatch::RequestId,Rails::Rack::Logger,ActionDispatch::ShowExceptions,ActionDispatch::DebugExceptions,ActionDispatch::RemoteIp,ActionDispatch::Callbacks,ActiveRecord::ConnectionAdapters::ConnectionManagement,ActiveRecord::QueryCache,ActionDispatch::Cookies,ActionDispatch::Session::CookieStore,ActionDispatch::Flash,ActionDispatch::ParamsParser,ActionDispatch::Head,Rack::ConditionalGet,Rack::ETag,ActionDispatch::BestStandardsSupport
Environment               production
Database adapter          mysql2

运行：

Apache服务器：Apache / 2.2.22(Ubuntu)

乘客：3.0.14