# File lib/rubyrep/session.rb, line 124
    def database_unreachable?(database)
      unreachable = true
      Thread.new do
        begin
          if send(database) && send(database).select_one("select 1+1 as x")['x'].to_i == 2
            unreachable = false # database is actually reachable
          end
        end rescue nil
      end.join configuration.options[:database_connection_timeout]
      unreachable
    end