rdisp/scheduler/prio_low/max_runtime is a SAP Parameter attribute which is used to control Maximum runtime for low prio requests (append s/m for sec/min) information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
rdisp/scheduler/prio_low/max_runtime profile paramerter attributes
Parameter Name: rdisp/scheduler/prio_low/max_runtime
Description: Maximum runtime for low prio requests (append s/m for sec/min)
Default Value:
Parameter Type ( See
IF_PARAMETER_TYPES)
: String(STRING)
Restriction Values:
Parameter Unit:
Parameter Group: Dispatcher
CSN Component: BC-CST-DP
System-Wide parameter: No
Dynamic Parameter: Yes
Vector Parameter: No
Has Sub-Parameters: No
Check Function Exists: No
Parameter documentation
This parameter limits the time for which a low-priority request can run
uninterrupted in a dialog work process before it is forced to terminate.
Interruptions, that is, activities that could lead to a work process
switch (roll-out) (for example, COMMIT WORK, RFC call, and so on) each
restart the time interval at zero.
For reasons of backward compatibility, this parameter only takes effect,
if the parameter rdisp/max_wprun_time> is
not explicitly set. The rdisp/scheduler/prio_*/max_runtime parameters
provide the same functionality as the parameter
rdisp/max_wprun_time>, but allow
differentiation by priorities. We recommend that you switch to the new
parameters.
The system assigns low priority to all RFC dialog requests that are
triggered by a background request.
The intention behind this parameter is mainly defensive. It limits the
consequences of an activity unintentionally running for a long time: it
means that a hanging request or a programming error cannot indefinitely
block a work process that is intended for low-priority activities.
Since extremely long runtimes are normal for background requests, and do
not indiciate an error, you should normally choose a very high value for
this parameter, or not set the parameter at all.
After the maximum runtime has expired, the program terminates at two
levels:
If the program is currently executing ABAP commands, the ABAP processor
terminates the program.
If the program is hanging in an external command, such as SQL, the
entire work process is terminated after a second time period of a
maximum of 60 seconds, and the user context is reset after the process
restart.
An ABAP short dump is generated in both cases.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.