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Procedure documentation Configuring Instance Properties  Locate the document in its SAP Library structure

Use

This procedure enables you to configure instance properties such as JVM settings, server process debug settings, message server settings, and bootstrap settings that refer to the instance itself and all cluster elements contained therein.

Caution

If you want to change the default values of the JVM parameters in a J2EE Engine, which you intend to patch later, you must use the Config Tool. The changes will be stored as custom settings and will have higher priority than the default ones.   

Procedure

Configuring Instance Properties

If You Want To

Then

View or edit the message server settings

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       1.      Select Message Server & Bootstrap.

       2.      In the Message Server settings pane you can view and edit:

                            a.      Message server host

                            b.      Message server port

       3.      Enter the new value and choose File → Apply.

View or edit the Bootstrap Java properties

 

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       1.      Select Message Server & Bootstrap.

       2.      In the Bootstrap Java settings pane you can view and edit:

                            a.      Java Home – Holds the path to the JDK that the J2EE Engine works with.

                            b.      Max heap size – The maximum size of heap memory used by the JVM.

                            c.      Java parameters – Contains additional parameters to be passed to the JVM.

                            d.      Classpath – Holds the classpath to the bootstrap launcher file for a particular cluster element.

                            e.      Parameters – Contains program arguments used for starting a bootstrap process.

Recommendation

We recommend that you do not change these parameters.

       3.      Enter the new value and choose File → Apply.

View or edit the JVM settings for all server processes in this instance

 

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       1.      Select Servers General.

       2.      In the Java settings pane you can view and edit:

                            a.      Max heap size

                            b.      Java parameters

                            c.      Classpath

                            d.      Parameters

       3.      Enter the new value and choose File → Apply.

Disable all server processes within an instance

 

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       1.      Select Servers General.

       2.      Deselect Execute.

This indicator is selected by default and its function is to start the specified cluster element automatically when running the J2EE Engine.

       3.      Choose File → Apply.

View or edit the debug properties for all server processes in this instance

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       1.      Select Servers Debug.

       2.      Enter the new value of the following settings and choose File → Apply:

                            a.      Debuggable – specifies that the selected server process is debuggable (that is, the “debug mode” feature for this server process is enabled).

                            b.      Enabled debug mode – specifies whether the server process is in debug mode.

                            c.      Restricted load balance – specifies whether the server process is part of the load balancing system.

                            d.      Debug port – enables debugger clients connections. This port is opened by the virtual machine and must not be among the ports that the J2EE Engine uses. By default, it is set to 50021.

 

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