abap/heap_area_nondia: Heap Memory Limit for Non-Dialog Work Processes
This parameter sets the limit for the heap memory (heap memory) that an SAP non-dialog work process can allocate. This value refers to spool, update, and background processes. This value ensures that there is enough swap space available in the system.
Unit: bytes
Goal:
Prevent a single non-dialog work process (user context) from filling up the entire heap memory of the application server.
The work processes of an application server can allocate only so much heap memory as specified in parameter
abap/heap_area_total. The limit specified in the parameter refers to the combined heap memory usage of all work processes for an application server.The value should be high enough for the largest possible background processing context in your SAP System. If the value is too small,
SAP Extended Memory is assigned to the background process. This extended memory is not available for dialog work processes. See Allocating Memory for User Contexts.The default value is generously sized and does not usually have to be increased.