[cas-dev] high availability issue of CAS

[Lin George]

Sorry for sending to multiple list because I am a new member and do not know which list is better to send. It is appreciated if anyone could advise me which list is the correct one to send this question. I am a CAS new user not developer who wants to contribute CAS code (I may contribute after I am familiar with CAS). :-)

My question is, after reviewing CAS architecture, I have not found how CAS ensures high availability and scalability.

More specific question like this,

- if I only setup one CAS authentication server (service), and if it is not availabile for some reason (e.g. power-off), how to ensure the whole authentication system (including web client and web resources) still works? Or the whole system will not work -- i.e. without authentication server (service), even if end user provides valid credential, he/she can not access the web resources?

- if the user base is large, how to setup multiple CAS authentication servers (service) to balance load? I did not find related information in the CAS wiki page.

Any advice are welcome.

thanks in advance,
George