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Chapter 4. Configuring and starting Decision Server

You can configure your Decision Server location, user name, password, and other related properties by defining the necessary configurations when you start Decision Server.

Procedure

Navigate to the Red Hat Decision Manager 7.4 bin directory and start the new Decision Server with the following properties. Adjust the specific properties according to your environment. 

$ ~/EAP_HOME/bin/standalone.sh --server-config=standalone-full.xml
1 

-Dorg.kie.server.id=myserver
2 

-Dorg.kie.server.user=decision_server_username
3 

-Dorg.kie.server.pwd=decision_server_password
4 

-Dorg.kie.server.controller=http://localhost:8080/decision-central/rest/controller
5 

-Dorg.kie.server.controller.user=controller_username
6 

-Dorg.kie.server.controller.pwd=controller_password
7 

-Dorg.kie.server.location=http://localhost:8080/kie-server/services/rest/server
8 

-Dorg.kie.server.persistence.dialect=org.hibernate.dialect.PostgreSQLDialect
9 

-Dorg.kie.server.persistence.ds=java:jboss/datasources/psjbpmDS
10
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1
Start command with standalone-full.xml server profile
2
Server ID that must match the server configuration name defined in Business Central
3
User name to connect with Decision Server from the Decision Manager controller
4
Password to connect with Decision Server from the Decision Manager controller
5
Decision Manager controller location, Business Central URL with /rest/controller suffix
6
User name to connect to the Decision Manager controller REST API
7
Password to connect to the Decision Manager controller REST API
8
Decision Server location (on the same instance as Business Central in this example)
9
Hibernate dialect to be used
10
JNDI name of the data source used for your previous Red Hat JBoss BRMS database
Note

If Business Central and Decision Server are installed on separate application server instances (Red Hat JBoss EAP or other), use a separate port for the Decision Server location to avoid port conflicts with Business Central. If a separate Decision Server port has not already been configured, you can add a port offset and adjust the Decision Server port value accordingly in the Decision Server properties.

Example: 

-Djboss.socket.binding.port-offset=150
-Dorg.kie.server.location=http://localhost:8230/kie-server/services/rest/server
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If the Business Central port is 8080, as in this example, then the Decision Server port, with a defined offset of 150, is 8230.

Decision Server connects to the new Business Central and collects the list of deployment units (KIE containers) to be deployed.

Note

When you use a class inside a dependency JAR file to access Decision Server from Decision Server client, you get the ConversionException and ForbiddenClassException in Business Central. To avoid generating these exceptions in Business Central, do one of the following:

  • If the exceptions are generated on the client-side, add following system property to the kie-server client: 
System.setProperty("org.kie.server.xstream.enabled.packages", "org.example.**");
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  • If the exceptions are generated on the server-side, open standalone-full.xml from the Red Hat Decision Manager installation directory, set the following property under the <system-properties> tag: 
<property name="org.kie.server.xstream.enabled.packages" value="org.example.**"/>
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  • Set the following JVM property: 
-Dorg.kie.server.xstream.enabled.packages=org.example.**
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It is expected that you do not configure the classes that exists in KJAR using these system property. Ensure that only known classes are used in the system property to avoid any vulnerabilities.

The org.example is an example package, you can define any package that you want to use. You can specify multiple packages separated by comma , for example, org.example1.* * , org.example2.* * , org.example3.* *.

You can also add specific classes , for example, org.example1.Mydata1, org.example2.Mydata2.

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