I started
java -Xmx512M -jar /home/ec2-user/OpenTripPlanner/otp-0.20.0-20160422.165451-50-shaded.jar --basePath /home/ec2-user/OpenTripPlanner --server
I have this in the base path
[ec2-user@ip-172-31-31-88 OpenTripPlanner]$ ls -R graphs/
graphs/:
Graph.obj r1
graphs/1:
Graph.obj gtfs_8.zip
When I hit the URL, [ec2-user@ip-172-31-31-88 OpenTripPlanner]$ curl http://localhost:8080/otp/routers {"routerInfo":[]}
What needs to be done to register the routers?