Hello! 
As I understand, by default CAS stores created tickets in memory.
This leads to a problem: when we remove or add a node - other nodes cannot 
recognize its tickets, so authentication fails with "Ticket not recognized" 
exception.

We understood that just running multiple nodes of CAS is not an option.

So, here is the question: is it a good idea to use some centralized storage 
for tickets, and connect multiple instances of CAS to it like on the 
attached diagram?
Will it support dynamically adding and removing CAS servers? 
What will happen when one gets a ticket from an instance, and then 
validates it on any other instance?


[image: Untitled Diagram.jpg]


Thank you!

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