We were using OpenDNS instead of GoogleDNS on our Digital Ocean Server. Looks like some outrage in the DNS in Google and OpenDNS is causing the following time out erros

NoMethodError: undefined method `fb_error_code' for #<Faraday::ConnectionFailed>

I have changed the following configuration

# /etc/resolv.conf 
nameserver 208.67.222.222 
nameserver 208.67.220.220

and

# /etc/network/interfaces
dns-nameservers 208.67.222.222 208.67.220.220

and rebooted the system. But The sidekiq which used to normally take 1-2 min is not taking over 20mins to complete and throwing a lot of errors.