Access Gateway generating multiple files like /var/tmp/krb5

Document ID : KB000117172
Last Modified Date : 09/10/2018
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Issue:
After running R12.7.2 Access Gateway for a while it opens too many files until it reaches the OS limit (which has been increased to 65536), and the files are the /var/tmp/krb5_* kerberos replay cache files. 

We need to restart CA Access Gateway every time it reaches the limit - which causes the service to be unavailable.

How can we resolve this issue? 
Environment:
Access Gateway : R12.7 SP2 on RHEL7.5 x64 
Resolution:
A fix was provided to resolve this issue. This fix should be inccluded to CA Access Gatway 12.7 SP3