Message Server Monitor 

Use

You can use the Message Server Monitor to closely monitor the functioning of the message server.

The initial screen is identical to the SAP Application Server Overview (SM51). All SAP servers that have logged on to the message server are displayed.

Prerequisites

You are logged onto the SAP system, and the message server is running.

Features

The menu option Goto contains all of the functions of the Message Server Monitor.

Display Details

To view detailed information about the client on which the cursor is positioned, choose Goto ® Display details.

Information about the Release

To view detailed information about the release of the message server, choose Goto ® Release Notes.

The release notes provide information on the version of the SAP Message Server, and on the release and Support Package level of the SAP kernel.

kernel information tells you the release of the SAP kernel. Besides kernel release and compile information, this screen provides the following information:

See below for the patch comments on the kernel patches that apply to the component Message Server, and other detailed information.

Hardware Key

You can display the hardware key of your SAP system, which you need to install the SAP license, by choosing Goto ® Hardware Keys. (For further information about the SAP license procedure, see the documentation on the SAP License.)

Parameters

You can view all the parameters associated with the message server by choosing Goto ® Parameters ® Display. Some of these parameters can be changed dynamically while the system is running; to do this, choose Goto ® Parameter ® Change.

You can display the RZ11 documentation for every parameter. To do this, place your cursor on the parameter name and choose Documentation.

The most important parameters are described in Message Server Parameters.

Statistics

You can activate, display, deactivate, or reset message server statistics. To do this, choose Goto ® Statistics.

The statisitics include information on, among other things, the number of logins, requests received, bytes written and read.

If you deactivate the statistics function and later reactivate it, the existing values are used as a base and new statistics are added to them. If you want to start the statistics from scratch, you have to use the Reset function.

Trace

You can access the following functions of the message server trace by choosing Goto ® Trace:

If the message server is restarted, the trace file dev_ms is re-named to dev_ms.old before it is re-written. In this way, both the current and the old versions of the trace file are available.

You can use the trace logging function to locate sporadic and awkward errors. This is described in detail in the documentation: Trace Logging.

Logon Data

You can display the logon data for the individual SAP application servers that are currently logged on to the message server. To do so, select a server and choose Goto ® Logon data ® Display.

The number of dialog work processes (in the dialog mode) that the message server needs for load distribution is displayed under Additional data.

The relevant dispatcher sends this data to the message server when the server is started.

 

Logon type

Host name

Port

Host address

Additional data

Dialog

ls0302.wdf.sap-ag.de

3253

10.17.68.123

DIA=12

RFC

ls0302.wdf.sap-ag.de

3353

10.17.68.123

 

HTTP

ls0302.wdf.sap-ag.de

8080

10.17.68.123

 

HTTP with SSL

ls0302.wdf.sap-ag.de

8443

10.17.68.123

 

SMTP

ls0302.wdf.sap-ag.de

25053

10.17.68.123

 

In this example, the application server (SAP Web Application Server) is making 5 protocols available on the machine ls0302.wdf.sap-ag.de. The message server gets the details of these request types from the application server.

It is not usually necessary to change the logon data. If the message server does not get the data for some reason, you can enter it manually. To do this, choose Goto ® Logon data ® Change.

See also: HTTP Load Distribution Using SAP Message Server.

Expert Functions

These functions are required for analysis performed by SAP, and are not described further here.

Exceptions to this are the server functions Shut Down Server (Hard), Shut Down Server (Soft,) Terminate connection, Deactivate and Activate. These functions control the state of the application server. These states are described under SAP Application Server Overview.

The server functions are described in detail under Server Functions.

Activities

Enter transaction code SMMS.