Configuring RTMF 

This section describes configuration settings for RTMF and JMS, on which RTMF is based.

For more detailed information on proper values for RTMF and JMS configuration settings, see SAP Note 979804.

Polling

In order for each client to check for messages, the client must send a request to the server or, in other words, poll the server. The time between such requests is called the polling interval, and is determined by the following configuration settings:

●      PollingIntervalBasis (in seconds): The initial and minimum polling interval. As more clients use RTMF, eventually the PollingMaxHitsPerSecond setting determines the polling interval.

The default is 3.

●      PollingMaxHitsPerSecond: The maximum number of hits (each poll of the server is a hit) allowed per second on each server node. As more clients use RTMF, more requests are made to the server, so each client must poll the server less. Therefore, the polling interval grows.

The default is 200. If set to -1, RTMF uses a constant polling interval, determined by the PollingIntervalBasis setting.

To change the settings, use the NetWeaver Administrator. To locate the settings, do the following:

...

       1.      Navigate to Configuration Management → Infrastructure → Java System Properties.

       2.      In the Details area, select the Services tab.

       3.      Select com.sap.netweaver.rtmf.server.

       4.      In the Extended Details area, change the settings, and then click Save.

Memory Size

Memory must be reserved for each client that subscribes to RTMF events. As more clients use RTMF, more memory is needed.

You can configure how JMS sets aside memory for RTMF clients with the following configuration settings:

·        Client Memory Size: The total amount of memory set aside for RTMF clients.

·        Client Consumer Buffer Size: The amount of memory set aside for each RTMF client.

To change the settings, use the NetWeaver Administrator. To locate the settings, do the following:

...

       1.      Navigate to Configuration Management → Infrastructure → JMS Server Configuration.

       2.      From the Show dropdown list, select JMS Virtual Providers.

      3.      In the JMS Virtual Provider List area, select default.

       4.      In the Details area, change the settings, and then click Save.

       5.      From the Operation Management tab of NetWeaver Administrator, restart the JMS Provider service.