Message Server Parameters
The most important message server parameters are described below. "Dynamic" indicates that a parameter can be changed while the system is running.
You can also obtain information on the profile parameters using transaction RZ11. Search for parameters that start with
ms/audit
This parameter is used for logging. You can use this parameter if you detect problems of a sporadic nature with the message server, and cannot increase the message server trace level because the file would become too large. If this parameter is set accordingly, logons to and logoffs from the message server are also logged with trace level 1.
This is a bit mask (2 bits); the following values are allowed:
0 |
No logging |
1 |
Logons to and logoffs from application servers are logged |
2 |
Activate and suspend clients are also logged; this means the temporary suspending of a client when it sends more date than can be received. |
Default value
: 0Dynamic: Yes
ms/comment
Short description of the SAP System. This description is transferred to the domain server when the connection is established. It is displayed there in the list of systems.
Default value:
message server $(SAPSYSTEMNAME)Dynamic
: Yesms/conn_timeout
You log on the message server in two steps.
The connection is broken if you do not log on to the message server within a specified time after establishing the connection.
Value 0 deactivates this check.
Default value: 300 (seconds)
Dynamic: Yes
ms/keepalive
Specifies the maximum time in seconds before the message server checks inactive connections. A data packet is sent to the client for the check.
Value 0 deactivates this check.
Default value: 300
Dynamic: Yes
ms/max_clients
Number of clients that can log on to the message server at the same time.
Default value: 300
Dynamic: No
ms/max_open_requests
Number of open requests that can be administered in the message server at the same time.
Default value: 1000
Dynamic: No
ms/max_sleep
Specifies the maximum amount of time in seconds the message server waits for a request.
Default value: 20
Dynamic: Yes
ms/timeout
Determines the timeout value for the calls NiRead (read from network) and NiWrite (write to network) in milliseconds. If within this time interval not all the data has been sent or received, the action concerned is interrupted and later reinitiated.
Default value: 5000
Dynamic: Yes