It turns out to be simpler and more efficient to ship the request when it arrives to the node that has the ticket than to struggle to ship the ticket in advance to all the nodes that may may receive the request.
The modern network Front End device can be easily programmed with a small amount of knowledge of CAS protocol to route each request to the server that can best handle it. If that is not possible with your network administrators, then the CushyFrontEndFilter does the same thing less efficiently than programming the Front End but more efficiently than running Ehcache or similar ticket replication mechanisms without the Filter.
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