java - Should I use sessions in Google App Engine? -

java - Should I use sessions in Google App Engine? -

i have learned this questions google app engine supports session. able utilize them not sure whether should because can. scalability issues.

my questions really,

where store session information? in info store or take long? , certainly far costly?

what mem cache? have known of gae few days , still reading. mem cache considered fast/scalable , cost?

what best practice scalability sessions?

thanks lot

you don't have choice. appengine handles session persistence , fast access you, transparently.

quote the official documentation:

app engine includes implementation of sessions, using servlet session interface. implementation stores session info in app engine datastore persistence, , uses memcache speed.

java google-app-engine http session