Operating system configuration

After you finish the installation, configure the operating system to work with IBM® Safer Payments.

Changing operating system limits
Make changes to the operating system settings before you use IBM Safer Payments.
Checking firewall settings
Check your firewall settings. The settings must allow IP messaging between the cluster instances and other systems.
Configuring deferred writing and ultra-large memory
Transparent Huge Pages (THP) is a Linux® memory management system that reduces the overhead of Translation Lookaside Buffer (TLB) lookups on machines with large amounts of memory by using larger memory pages.
Increasing virtual memory map size
Linux restricts the maximum number of memory maps per process. The default is 65535 on RHEL.
Decreasing swappiness
IBM Safer Payments produces larger latencies if the system uses swap memory.