Navigation stack should use which node map_server or map_saver
In navigation stack I am using a launch file. In that launch file map_server package is launching map_server node.
For creating map I am using gmapping package. In Gmapping I am using map_saver node from map_server package to save a map. I am in confusion that in Navigation stack which node of map_server package I should use map_server or map_saver.
What is the difference between map_server and map_saver?