We ended up modifying our CAS monitor to accept both HTML 200 and 400 
status codes to get around this problem. This is a new prod CAS4 to CAS5 
deployment and we have already used up the maxElementsInMemory=15000, so we 
will be going to 20k next. 

Are there any other CAS system parameters that we should be concerned with 
and consider increasing?

Duane

On Thursday, January 18, 2018 at 11:22:21 AM UTC-7, Duane Booher wrote:
>
> Hi, we have been running a new production upgrade to CAS 5.1.6 for about a 
> week. Most things are working, however during our peak login times, our TGT 
> sessions do not last the expected default of two hours and require the user 
> to re-login early. We have a two host cluster with ehcache enabled.
>
> We are using these defaults, which work with TGT persistence up to two 
> hours,  but only during medium to low volume login periods.
>
> cas.ticket.tgt.maxTimeToLiveInSeconds=28800
> cas.ticket.tgt.timeToKillInSeconds=7200
>
> We also get a TGT TICKET_GRANTING_TICKET_DESTROYED as the new login 
> authentication is processing.
>
> Any ideas on possible mis-configurations areas, or how to best debug this?
>
> Duane
>
>

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