What could break after changing instance type on Amazon EC2 AWS? -

that's generic question.

edit: machine m1-small ubuntu 64bit changing m1-medium.

here of components on box: -lighttpd (webserver) -fastcgi -django -gps tracking server (written in python) -.com.au domain -postgresql -postgis

stackoverflow related how change instance type

edit: upgrade went smoothly - no issues @ all. took snapshot of boot volume changed instance type after stopping machine. did expected have re-associate public ip address instance using elastic ip(very easy) before doing upgrade moved postgresql cluster(data files) boot volume (since it's small enough) can't snapshot instance drives.

since sticking within 64-bit should able stop instance, change type , start again. have downtime, if using elastic ip minimal. caveats however.

1. if using instance storage, data on volumes lost.
2. when restart instance assigned new public , private ip address. if using elastic ip, disassociated, can re associate after instance has started.