Hello,

I am running Ruby On Rails 4.2.4 on CentOS Linux 7.x using Apache/Passenger.

When I make a request to my rails server, it gets this error:

Mongo::Error::NoServerAvailable (No server is available matching preference: #<Mongo::ServerSelector::Primary:0x70292675833320 tag_sets=[] server_selection_timeout=30 local_threshold=0.015>)

I am able to run this code from my rails console without error. Don't know whey I am getting this error only when it runs through my Passenger/rails server.