Socket Errors from excon

[ddollar]

(from heroku/legacy-cli#606)

This error should come up to heroku as something a bit nicer I think.

[geemus]

@ddollar - is reraising as Heroku::API::Errors::Error (or something like that) good enough? I think the latest excon should give a more coherent message for this particular one (EOF) but it would still be in the form of an Excon::Errors::Error.

[wuputah]

Please also see heroku/legacy-cli#611 for a similar case.

[pabloivan57]

I'm having problems with Excon as well. Our app used to work correctly using a Sidekiq worker which purpose was to send emails using ActiveMailer. The mail add-on we use is SendGrid. Here are some important backtrace lines

2014-04-09T19:25:16.043768+00:00 app[web.1]: "Scaling sidekiq to 1"
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/excon-0.25.1/lib/excon/connection.rb:353:in `response'
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/excon-0.25.1/lib/excon/connection.rb:247:in `request'
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/excon-0.25.1/lib/excon/middlewares/expects.rb:6:in `response_call'
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/heroku-api-0.3.13/lib/heroku/api.rb:76:in `request'
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/autoscaler-0.2.1/lib/autoscaler/heroku_scaler.rb:38:in `workers='
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/heroku-api-0.3.13/lib/heroku/api/processes.rb:36:in `post_ps_scale'
2014-04-09T19:25:16.188312+00:00 app[web.1]: Expected(200) <=> Actual(403 Forbidden)
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/autoscaler-0.2.1/lib/autoscaler/sidekiq.rb:17:in `call'
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:114:in `call'
2014-04-09T19:25:16.188542+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/sidekiq-2.10.1/lib/sidekiq/middleware/chain.rb:114:in `invoke'
2014-04-09T19:25:16.188921+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/sidekiq-2.10.1/lib/sidekiq/worker.rb:68:in `client_push'
2014-04-09T19:25:16.188921+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/sidekiq-2.10.1/lib/sidekiq/client.rb:113:in `process_single'
2014-04-09T19:25:16.188921+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/sidekiq-2.10.1/lib/sidekiq/extensions/generic_proxy.rb:17:in `method_missing'
2014-04-09T19:25:16.188921+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.17/lib/active_record/associations/collection_proxy.rb:91:in `each'
2014-04-09T19:25:16.188921+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/sidekiq-2.10.1/lib/sidekiq/client.rb:41:in `push'

Any suggestions of what can I try? It's really urgent for us

[geemus]

What does the code look like in the job that is calling this? Forbidden would be an access issue, ie trying to scale an app for which you do not have permission to do so.

[pabloivan57]

Pretty standard send mail code:

def bid_created(to_email, sender_id, work_order_id)
    load_notification_vars(sender_id, work_order_id)
    mail(:to => to_email, :subject => "#{@sender.name} Bid on the #{@work_order.title} Work Order", :reply_to => @sender.email)
end

[pabloivan57]

@geemus, what do you mean by trying to scale an app, where can I start looking into this issue?

[geemus]

@pabloivan57 ah. Well the error from that backtrace is one of sidekiq trying to scale itself to more workers I believe. So perhaps that is the issue at hand (rather than a mailer related one). Does that make more sense?