Transactions may fail to process and you will notice an error of "Too many open files" in the API Gateway log.
This applies to all versions of API Gateway as this is more of an OS configuration matter.
The current maximum file open limit has been reached in the operating system. This typically means the usage of the SSG service has reached past what the OS is going to allow the SSG service to use by default - in other words, the appliance is no longer adequate for the current usage of the service.
To address the "Too many open files" errors, the following steps should be completed:
# Layer 7 Limits (SSG-8322)
# gateway user value based on /proc/sys/kernel/pid_max
* hard maxlogins 10
* hard core 0
* soft nproc 5120
* hard nproc 16384
* soft nofile 4096
* hard nofile 63536
gateway soft nproc 31768
gateway hard nproc 31768
# End Layer 7 Limits