> Caused by: net.spy.memcached.internal.CheckedOperationTimeoutException:
> Timed out waiting for operation - failing node: casserver1.ucmerced.edu/<ip
> address>:11211

Reads like a networking problem.

> My ports are opened and I check that my repcache/memcache is running.

Let's verify with a simple command that is executed from the host
attempting to save the TGT:

echo "stats" | nc casserver1.ucmerced.edu 11211

If you get output that summarizes cache statistics, then you've
confirmed basic connectivity to memcached. I expect that you will not
get a status listing and then you'll need to troubleshoot routing and
firewall issues.

M

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