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Procedure

The following functions for starting, stopping, and managing the ICM are available from the administration menu in the ICM monitor (transaction SMICM .

Some of the functions can be executed for both the local ICM (the ICM of the instance you are logged on to) and globally for all ICMs in the SAP system. This is indicated in the menu by Start of the navigation path Administration Next navigation step ICM Local End of the navigation path and Start of the navigation path Administration Next navigation step ICM Global End of the navigation path.

Cross-Instance Functions

The following functions can be executed locally (for this instance), or globally (for all system instances).

  • Soft Exiting the ICM

    You can terminate the ICM with a ( “soft” ) exit by choosing Start of the navigation path Administration  Next navigation step ICM Local / ICM Global Next navigation step Soft Exit End of the navigation path. At operating system level this corresponds to signal 2 where the ICM tries to send responses to its existing clients, but does not accept any new connections.

  • Hard Exiting the ICM

    You can terminate the ICM with a hard exit by choosing Start of the navigation path Administration  Next navigation step ICM Local / ICM Global Next navigation step Hard Exit End of the navigation path. At operating system level this corresponds to signal 9 where the ICM process is terminated. All existing connections and, of course, all requests are lost.

  • Maintenance Mode

    If the ICM has the status running (visible in the upper area of the ICM Monitor), you can put in into Maintenance Mode . Choose Start of the navigation path Administration Next navigation step ICM Local / ICM Global Next navigation step Maintenance Mode Next navigation step Activate End of the navigation path. You can leave the maintenance mode in the same menu by choosing ( Deactivate ). The ICM will then have the normal running status again.

Local Functions

The following functions can only be executed locally (for this instance).

  • Reload Configuration.

    While the ICM is running you can get it to reload configuration data that can otherwise only be updated periodically or when the ICM is started. Choose Start of the navigation path Administration Next navigation step ICM Local Next navigation step Configuration Next navigation step Reload End of the navigation path.

    Reloading configuration data means:

    • Invalidates the host name buffer; more information: Host name buffer

    • Invalidates the server cache.

    • Updates information from the message server and application servers (Web dispatcher only).

    • Exits from the maintenance mode if this was active.

    • Reloads filter rules; more information: Template , section: Initialization of the Content Filter

      Note

      A changed profile cannot be applied when the SAP Web dispatcher is running. It has to be restarted.

  • Setting Start Options

    Choose Start of the navigation path Administration Next navigation step ICM Local Next navigation step Start Options Next navigation step Set End of the navigation path, to set the trace file and the trace level of the ICM. Standard is dev_icm and 1.

  • Restart

    If the ICM is terminated (due to an error or by the administrator), it is automatically restarted by the dispatcher. You can control this behavior by choosing Start of the navigation path Administration Next navigation step ICM Local Next navigation step  Restart Next navigation step Yes End of the navigation path or No If you deactivate the restart and exit the ICM, it will not be restarted.