# File lib/mongo/util/sharding_pool_manager.rb, line 26
    def check_connection_health
      begin
        seeds = @client['config']['mongos'].find.to_a.map{|doc| doc['_id']}
        if @seeds != seeds
          @seeds = seeds
          @refresh_required = true
        end
      rescue Mongo::OperationFailure
        @refresh_required = true
      end
    end