The QOUT Scheduler
Use
The QOUT Scheduler was implemented to improve performance when sending qRFC and tRFC messages. The processing of all queues is scheduled by the QOUT Scheduler.
Integration
To monitor the work of the scheduler, use transaction SMQS.
Prerequisites
You are running an SAP system that uses qRFC to communicate with other systems. A destination is registered automatically in the QOUT Scheduler if it is one of the following:
· A destination for an external program (type T in SM59)
· A destination for another SAP system (type 3 in SM59) and the logon data (client, user, password, language) has been defined completely in transaction SM59
Features
Queues are processed across all applications using the application server group “Default”.
The “Default” server group includes all application servers available in the system. The outbound queues can by processed by any application server in the system.
Activities
You can perform the following actions for a destination:
·
Register
The QOUT Scheduler processes all tRFC/qRFC messages that use this
destination.
·
Deregister
None of the tRFC/qRFC messages that use this destination are processed (used
for debugging).
·
Exclude
None of the tRFC/qRFC messages that use this destination are processed by the
QOUT Scheduler.
You can use transaction SMQS to monitor the QOUT Scheduler and reactivate any blocked queues.
You can use transaction SMQ1 to start the qRFC Monitor for the outbound queue; this transaction includes additional monitoring functions.
MAXCONN: Maximum number of connections for a destination (maximum number of DIALOG work processes in the sending system), default: 1; destination with the type T (NON-SAP), default 10; destination with the type 3 (SAP system)
MAXTIME: Maximum runtime for a destination; the default is 60 seconds.
QOUT Scheduler: Application Server Group
You can use transaction RZ12 to define a group of application servers (AS). You can then use transaction SMQS to assign this server group to the QOUT Scheduler. The scheduler will then only use the application servers assigned in the server group to process the LUWs.
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