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2129291 - Session Priority and Work Process Quota in SAP Kernels >= 7.4x


With the SAP NetWeaver 7.4 x kernel, some of the kernel scheduler concepts has been changed, this results in a simple yet powerful scheduling model. Accordingly the configurations are changed based on the new kernel scheduler. Example:- work process quota and max runtime (rdisp/rfc_min_wait_dia_wp, rdisp/http_min_dia_wp, and rdisp/max_wprun_time are now obsolete).

This SAP Note main goal is to explain the following concepts and the corresponding configuration:

  • Priority based scheduling: The scheduler uses session priority to determine which dialog request gets a dialog work process. Priorities are assigned according to session types. For example: interactive sessions have highest priority, batch sessions and RFCs started by batch have lowest.
    The parameters that now control session quotas are rdisp/scheduler/prio_low/max_quota and rdisp/scheduler/prio_normal/max_quota.

  • Maximum session runtime depends on priority: By default, low/normal/high priority sessions have unlimited/60minutes/10minutes respectively.
    The parameters that now control max runtimes are rdisp/scheduler/prio_low/max_runtime, rdisp/scheduler/prio_normal/max_runtime, and rdisp/scheduler/prio_high/max_runtime.



SAP NetWeaver AS ABAP with kernel >= 7.4x


Session priority, work process quota, SAP Kernel 7.4x, maximum runtime, scheduler parameters, priority classes , KBA , BC-CST-DP , Dispatcher, Task Handler , BC-CST , Client/Server Technology , How To

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