Installing and configuring Red Hat Process Automation Manager in a Red Hat JBoss EAP 7.1 clustered environment

Procedure

1. Download and unzip the Elasticsearch installation file.

2. Replace the contents of the elasticsearch/config/elasticsearch.yml file with the following content, where <ELASTICSEARCH_NODE_IP> is the IP address of the system where you unzipped the Elasticsearch file:

   cluster.name: kie-cluster
   transport.host: <ELASTICSEARCH_NODE_IP>
   http.host: <ELASTICSEARCH_NODE_IP>
   transport.tcp.port: 9300
   discovery.zen.minimum_master_nodes: 1

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3. Run Elasticsearch:

   • On Linux or UNIX-based systems, enter:

     ELASTICSEARCH_HOME_/bin/elasticsearch

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     On Windows, enter:

     ELASTICSEARCH_HOME\bin\elasticsearch.bat

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Procedure

1. Install Red Hat JBoss EAP 7.1 on each node of the cluster:

   1. Navigate to the Software Downloads page in the Red Hat Customer Portal (login required), and select the product and version from the drop-down options:

      • Product: Enterprise Application Platform
      • Version: 7.1
   2. Click Download next to Red Hat JBoss Enterprise Application Platform 7.1.0. (JBEAP-7.1.0/jboss-eap-7.1.0.zip).
   3. Extract the jboss-eap-7.1.0.zip file. In the following steps, EAP_HOME is the jboss-eap-7.1/jboss-eap-7.1 directory.

2. On the cluster node where the Red Hat JBoss EAP domain controller will be started (the master node), navigate to the Software Downloads page in the Red Hat Customer Portal, and select the product and version from the drop-down options:

   • Product: Process Automation Manager
   • Version: 7.0
3. Download Red Hat Process Automation Manager 7.0.0 Business Central Deployable for Red Hat JBoss EAP 7 (rhpam-7.0.0-business-central-eap7-deployable.zip).
4. Extract the rhpam-7.0.0-business-central-eap7-deployable.zip file to a temporary directory. In the following examples this directory is called TEMP_DIR.
5. Copy the contents of TEMP_DIR/rhpam-7.0.0-business-central-eap7-deployable/jboss-eap-7.1 to EAP_HOME.

6. Repackage the business-central.war file:

   1. Navigate to the TEMP_DIR/rhpam-7.0.0-business-central-eap7-deployable/jboss-eap-7.1/standalone/deployments/business-central.war directory.
   2. Select the contents of the TEMP_DIR/rhpam-7.0.0-business-central-eap7-deployable/jboss-eap-7.1/standalone/deployments/business-central.war directory and create the business-central.zip file.
   3. Rename business-central.zip to business-central.war. This is the file that you will use to deploy Business Central on the cluster nodes.
   4. If desired, copy the new business-central.war file to a location that is more convenient to deploy from.

Procedure

1. On the the master node of the cluster (where you will run the domain controller), open the EAP_HOME/domain/configuration/domain.xml file in a text editor.

2. Make the following changes for each server group in the server-groups element:

   1. Specify the server-group name and jvm name.
   2. To enable high availability, change the profile to "full-ha" and the socket-binding-group to "full-ha-sockets".

   3. To prevent Business Central from running out of memory, increase the JVM maximum heap size to 1500m.

      <server-group name="some-server-group" profile="full-ha">
          <jvm name="some-jvm">
              <heap size="1000m" max-size="1500m"/>
          </jvm>
          <socket-binding-group ref="full-ha-sockets"/>
      </server-group>

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3. Edit or add the following properties to the <system-properties> element and replace the following placeholders:

   • <ELASTICSEARCH_NODE_IP> is the IP addresses where Elasticseach is installed.
   • <JMS_USER> is a Red Hat JBoss EAP application user. It is the user that Business Central uses to connect to the embedded JMS broker.

   • <JMS_USER_PASSWORD> is the password for <JMS_USER>.

     <system-properties>
       <property name="appformer-jms-connection-mode" value="JNDI"/>
       <property name="appformer-jms-username" value="<JMS_USER>  "/>
       <property name="appformer-jms-password" value="<JMS_USER_PASSWORD>"/>
       <property name="org.appformer.ext.metadata.elastic.port" value="9300"/>
       <property name="org.appformer.ext.metadata.elastic.host"
           value="<ELASTICSEARCH_NODE_IP>"/>
       <property name="org.appformer.ext.metadata.elastic.cluster"
           value="kie-cluster"/>
       <property name="org.appformer.ext.metadata.index" value="elastic"/>
       <property name="org.appformer.ext.metadata.elastic.retries" value="10"/>
       <property name="appformer-jms-connection-factory" value="java:/ConnectionFactory"/>
     </system-properties>

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4. In the <subsystem xmlns="urn:jboss:domain:messaging-activemq:2.0"> element, make the following changes:

   1. Replace <cluster password="${jboss.messaging.cluster.password:CHANGE ME!!}"/> with <cluster user="<CLUSTER_USER>" password="<CLUSTER_PWD>"/> where <CLUSTER_USER> is the user used by Red Hat JBoss EAP to form a messaging cluster and <CLUSTER_PWD> is the password for that user.

   2. In the security-setting element , add the role of the <JMS_USER> to a new role-name element, for example:

      <security-setting name="#">
          <role name="guest" send="true" consume="true" create-non-durable-queue="true" delete-non-durable-queue="true"/>
          <role name="admin" send="true" consume="true" create-non-durable-queue="true" delete-non-durable-queue="true"/>
      </security-setting>

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5. Save the domain.xml file.

Procedure

1. Open the EAP_HOME/domain/configuration/host.xml file or the EAP_HOME/domain/configuration/host-slave.xml file in a text editor.
2. In the main-server-group <servers> element, add the servers that will be part of the cluster.
3. Add the the system properties listed in Table 3.1, “Cluster node properties”
4. Save the host.xml or host-slave.xml file.

Procedure

1. Add Red Hat JBoss EAP management users to the master node of the cluster (where you configured the domain.xml file) as described in the Red Hat JBoss EAP 7.1 Configuration Guide.

2. On each node of the cluster, add the following users:

   1. Add Business Central administration users as described in Installing and configuring Red Hat Process Automation Manager on Red Hat JBoss EAP 7.1.

   2. Add the JMS user, where <JMS_USER> and <JMS_PWD> is the JMS user and password combination that you added to the domain.xml file:

      $ ./add-user.sh -a --user <JMS_USER> --password <JMS_PWD> --role admin

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3. Start the cluster by starting the the master node first, then start each of the slave nodes.

   1. To start the master node, enter one of the following commands:

      • On Linux or UNIX-based systems, enter:

        <EAP_HOME>/bin/domain.sh

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      • On Windows, enter:

        <EAP_HOME>/bin/domain.bat

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   2. To start the slave nodes, on each of the slave nodes enter one of the following commands, where <MASTER_NODE_IP> is the IP address of the master node (where the domain controller is configured):

      • On Linux or UNIX-based systems, enter:

        <EAP_HOME>/bin/domain.sh --host-config=host-slave.xml -Djboss.domain.master.address=<MASTER_NODE_IP>

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      • On Windows, enter:

        <EAP_HOME>/bin/domain.bat --host-config=host-slave.xml -Djboss.domain.master.address=<MASTER_NODE_IP>

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        For more information, see the following sections of the Red Hat JBoss EAP 7.1 Configuration Guide:

      • "Starting JBoss EAP"
      • "Managed Domain Configuration Files"
4. On each node of the cluster, review the EAP_HOME/domain/servers/SERVER_NAME/log/server.log file to verify that the nodes are available.

5. To deploy the business-central.war file into the server group, complete the following steps:

   1. On the master node, log in to the Red Hat JBoss EAP Administration console as a management user.
   2. Click Deployments → Server Groups→ main-server-group and click Add.
   3. In the dialog box, click Upload a new deployment and click Next.
   4. In the Upload Deployments dialog box, click Browse, select the business-central.war file, and click Next.

   5. Click Enable and click Next. When the deployment is complete, Business Central starts automatically on each node.

      Note

      Make sure to check deployment unit readiness with every cluster member.

      When a deployment unit is created on a cluster node, it takes some time before it is distributed among all cluster members. You can check the deployment status using the server Administration console or REST API. However, if the query is sent to the node where the deployment was originally issued, the query will return a value of deployed. If the query is sent to a node where the deployment has not yet been distributed, the query returns DeploymentNotFoundException.

Procedure

1. Install Red Hat JBoss EAP 7.1 on each node of the cluster:

   1. Navigate to the Software Downloads page in the Red Hat Customer Portal (login required) and select the product and version from the drop-down options:

      • Product: Enterprise Application Platform
      • Version: 7.1
   2. Click Download next to Red Hat JBoss Enterprise Application Platform 7.1.0. (jboss-eap-7.1.0.zip).
   3. Extract the jboss-eap-7.1.0.zip file. The jboss-eap-7.1/jboss-eap-7.1 directory is referred to as EAP_HOME.

2. Download and extract Process Server:

   1. Navigate to the Software Downloads page in the Red Hat Customer Portal and select the product and version from the drop-down options:

      • Product: Process Automation Manager
      • Version: 7.0
      • Download Red Hat Process Automation Manager 7.0.0 Process Server for All Supported EE7 Containers (rhpam-7.0.0-kie-server-ee7.zip).
   2. Extract the rhpam-7.0.0-kie-server-ee7.zip archive to a temporary directory. In the following examples this directory is called TEMP_DIR.

3. Repackage the kie-server.war directory:

   1. Navigate to the TEMP_DIR/rhpam-7.0.0-kie-server-ee7/kie-server.war directory.
   2. Select the contents of the TEMP_DIR/rhpam-7.0.0-kie-server-ee7/kie-server.war directory and create the kie-server.zip file.
   3. Rename kie-server.zip to kie-server.war. This is the file that you will use to deploy Process Server on the cluster nodes.
   4. If desired, copy the new kie-server.war file to a location that is more convenient to deploy from.
4. If you want to use a security manager with Process Server, copy the contents of the TEMP_DIR/rhpam-7.0.0-kie-server-ee7/SecurityPolicy directory to the EAP_HOME/bin directory on each node of the cluster.

Procedure

1. Install the JDBC driver on all Red Hat JBoss EAP instances that are part of this cluster. For more information, see the "JDBC Drivers" section of the Red Hat JBoss EAP 7.1 Configuration Guide.
2. On the the master node of the cluster (where you will run the domain controller), open the EAP_HOME/domain/configuration/domain.xml file in a text editor.

3. Make the following changes for each server group in the server-groups element:

   1. Specify the server-group name and jvm name.

   2. To enable high availability, change the profile to full-ha and the socket-binding-group to full-ha-sockets.

      <server-group name="some-server-group" profile="full-ha">
          <jvm name="some-jvm">
              <heap size="1000m" max-size="1000m"/>
          </jvm>
          <socket-binding-group ref="full-ha-sockets"/>
      </server-group>

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4. Edit the data-stores property and the timer-service thread-pool-name above it:

   • The datasource-jndi-name is the JNDI name of the database specified at the beginning of this procedure.
   • You can enter any name for the value of the partition property. However, a node will only see timers from other nodes that have the same partition name. Grouping nodes into partitions by assigning partition names enables you to break a large cluster up into several smaller clusters. Doing this should improve performance. For example, instead of having a cluster of 100 nodes, where all 100 nodes are trying to execute and refresh the same timers, you can create 20 clusters of 5 nodes by giving every group of 5 a different partition name.
   • Replace the default-data-store attribute value with ejb_timer_ds.

   • Set the value of refresh-interval in milliseconds to specify how often the EJB timer connects to the database to synchronize and load tasks to be processed.

     <timer-service thread-pool-name="default" default-data-store="ejb_timer_ds">
     <data-stores>
         <database-data-store name="ejb_timer_ds" datasource-jndi-name="java:jboss/datasources/ejb_timer" database="postgresql" partition="ejb_timer_part" refresh-interval="30000"/>
     </data-stores>
     </timer-service>

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     The following table lists the supported databases and the corresponsing database attribute value:

     Expand

     Database	Attribute value
     Hyper SQL (for demonstration purposes only, not supported)	hsql
     PostgreSQL	postgresql
     Oracle	oracle
     IBM DB2	db2
     Microsoft SQL Server	mssql
     MySQL and MariaDB	mysql

     Show more

5. Add the Process Server and EJB timer data sources to the full-ha profile. In these examples, <DATABASE> is the name of the database, <SERVER_NAME> is the host name of the JNDI database, and <USER_NAME> and <USER_PWD> are the credentials for that database.

   • Add the data source to allow Process Server to connect to the database, for example:

     <xa-datasource jndi-name="java:/jboss/datasources/rhpam" pool-name="rhpam-RHPAM" use-java-context="true" enabled="true">
       <xa-datasource-property name="DatabaseName"><DATABASE></xa-datasource-property>
       <xa-datasource-property name="PortNumber">5432</xa-datasource-property>
       <xa-datasource-property name="ServerName"><SERVER_NAME></xa-datasource-property>
       <driver>postgresql</driver>
       <security>
         <user-name><USER_NAME></user-name>
         <password><USER_PWD></password>
     </security>
     </xa-datasource>

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   • Add the data source to enable the EJB timer, for example:

     <xa-datasource jndi-name="java:jboss/datasources/ejb_timer" pool-name="ejb_timer" use-java-context="true" enabled="true">
         <xa-datasource-property name="DatabaseName"><DATABASE></xa-datasource-property>
         <xa-datasource-property name="PortNumber">5432</xa-datasource-property>
         <xa-datasource-property name="ServerName"><SERVER_NAME></xa-datasource-property>
         <driver>postgresql</driver>
         <transaction-isolation>TRANSACTION_READ_COMMITTED</transaction-isolation>
         <security>
             <user-name><USER_NAME></user-name>
             <password><USER_PWD></password>
         </security>
     </xa-datasource>

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     Warning

     You must use two different databases for Process Server runtime data and EJB timer data.

6. In the <subsystem xmlns="urn:jboss:domain:messaging-activemq:2.0"> element, make the following changes:

   1. Replace <cluster password="${jboss.messaging.cluster.password:CHANGE ME!!}"/> with <cluster user="<CLUSTER_USER>" password="<CLUSTER_PWD>"/> where <CLUSTER_USER> is the user used by Red Hat JBoss EAP to form a messaging cluster and <CLUSTER_PWD> is the password for that user.

   2. In the security-setting element add the kie-server role:

      <subsystem xmlns="urn:jboss:domain:messaging-activemq:2.0">
          <server name="default">
              <security-setting name="#">
                  <role name="guest" send="true" consume="true" create-non-durable-queue="true" delete-non-durable-queue="true"/>
                  <role name="kie-server" send="true" consume="true" create-non-durable-queue="true" delete-non-durable-queue="true"/>
              </security-setting>

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7. Add the following properties to the <system-properties> element and replace the following placeholders:

   • <JNDI_NAME> is the JNDI name of your data source. For Red Hat Process Automation Manager, this is java:/jboss/datasources/rhpam.

   • <DIALECT> is the hibernate dialect for your database.

     The following dialects are supported:

     • DB2: org.hibernate.dialect.DB2Dialect
     • MSSQL: org.hibernate.dialect.SQLServer2012Dialect
     • MySQL: org.hibernate.dialect.MySQL5InnoDBDialect
     • MariaDB: org.hibernate.dialect.MySQL5InnoDBDialect
     • Oracle: org.hibernate.dialect.Oracle10gDialect
     • PostgreSQL: org.hibernate.dialect.PostgreSQL82Dialect

     • PostgreSQL plus: org.hibernate.dialect.PostgresPlusDialect

       <system-properties>
         <property name="org.kie.server.persistence.ds" value="<JNDI_NAME>"/>
         <property name="org.kie.server.persistence.dialect" value="<DIALECT>"/>
         <property name="org.jbpm.ejb.timer.tx" value="true"/>
       </system-properties>

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8. Save the domain.xml file.

Procedure

1. Complete the following steps on the master node of the cluster:

   1. Open the EAP_HOME/domain/configuration/host.xml file in a text editor.
   2. In the main-server-group <servers> element, add the servers that will be part of the cluster.

2. Complete the following steps in the host.xml file on the master node and in the host-slave.xml file on each slave node:

   1. Open the EAP_HOME/domain/configuration/host-slave.xml file in a text editor.
   2. In the main-server-group <servers> element, add the servers that will be part of the cluster.

Procedure

1. Add Red Hat JBoss EAP management users to the master node (where you configured the domain.xml file) as described in the Red Hat JBoss EAP 7.1 Configuration Guide.

2. On each node of the cluster, add Process Server users as described in Installing and configuring Red Hat Process Automation Manager on Red Hat JBoss EAP 7.1.

   1. To start the master node, enter one of the following commands:

      • On Linux or UNIX-based systems, enter:

        <EAP_HOME>/bin/domain.sh

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        On Windows, enter:

        <EAP_HOME>/bin/domain.bat

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   2. To start the slave nodes, on each of the slave nodes enter one of the following commands, where <MASTER_NODE_IP> is the IP address of the master node (where the domain controller is configured):

      • On Linux or UNIX-based systems, enter:

        <EAP_HOME>/bin/domain.sh --host-config=host-slave.xml -Djboss.domain.master.address=<MASTER_NODE_IP>

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      • On Windows, enter:

        <EAP_HOME>/bin/domain.bat --host-config=host-slave.xml -Djboss.domain.master.address=<MASTER_NODE_IP>

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        For more information, see the following sections of the Red Hat JBoss EAP 7.1 Configuration Guide:

      • "Starting JBoss EAP"
      • "Managed Domain Configuration Files".
3. On each node of the cluster, review the EAP_HOME/domain/servers/SERVER_NAME/log/server.log file to verify that the nodes are available.

4. To deploy the kie-server.war file that you created previously into the server group, complete the following steps on the master node:

   1. Log in to the Red Hat JBoss EAP Administration console of your domain as a management user.
   2. Click Deployments → Server Groups→ main-server-group and click Add.
   3. In the dialog box, click Upload a new deployment and click Next.
   4. In the Upload Deployments dialog box, click Browse, select the kie-server.war file, and click Next.

   5. Click Enable and click Next.

      Note

      Make sure to check deployment unit readiness with every cluster member.

      When a deployment unit is created on a cluster node, it takes some time before it is distributed among all cluster members. You can check the deployment status using the server Administration console or REST API. However, if the query is sent to the node where the deployment was originally issued, the query will return a value of deployed. If the query is sent to a node where the deployment has not yet been distributed, the query returns DeploymentNotFoundException.

Procedure

1. Navigate to the Software Downloads page in the Red Hat Customer Portal (login required), and select the product and version from the drop-down options:

   • Product: Process Automation Manager
   • Version: 7.0
2. Download Red Hat Process Automation Manager 7.0.0 Add Ons (the rhpam-7.0.0-add-ons.zip file).
3. Unzip the rhpam-7.0.0-add-ons.zip file. The rhpam-7.0-controller-ee7.zip file is in the unzipped directory.
4. Extract the rhpam-7.0-controller-ee7.zip file to a temporary directory. In the following examples this directory is called TEMP_DIR.

5. Repackage the controller.war directory:

   1. Navigate to the TEMP_DIR/rhpam-7.0.0-add-ons/rhpam-7.0-controller-ee7/controller.war directory.
   2. Select the contents of the TEMP_DIR/rhpam-7.0.0-add-ons/rhpam-7.0-controller-ee7/controller.war directory and create the controller.zip file.
   3. Rename controller.zip to controller.war. This is the file that you will use to deploy the controller on the cluster nodes.
   4. If desired, copy the new controller.war file to a location that is more convenient to deploy from.
6. If you want to use a security manager with the controller, copy the contents of the TEMP_DIR/rhpam-7.0.0-add-ons/rhpam-7.0-controller-ee7/SecurityPolicy directory to the EAP_HOME/bin directory on each node of the cluster.
7. Add Red Hat JBoss EAP management users to the master node (where you configured the domain.xml file) as described in the Red Hat JBoss EAP 7.1 Configuration Guide.
8. On each node of the cluster, add users for the headless Process Automation Manager controller as described in the "Installing the headless Process Automation Manager controller" section of the Installing and configuring Red Hat Process Automation Manager on Red Hat JBoss EAP 7.1.

9. Complete the following steps in the host.xml file on the master node and in the host-slave.xml file on each slave node:

   1. Open the EAP_HOME/domain/configuration/host.xml or EAP_HOME/domain/configuration/host-slave.xml file in a text editor.
   2. In the main-server-group <servers> element, add the servers that will be part of the cluster.

   3. Add the following properties to the <system-properties> element and replace <NFS_STORAGE> with the absolute path to the NFS storage where the template configuration is stored.

      <system-properties>
        <property name="org.kie.server.controller.templatefile.watcher.enabled" value="true"/>
        <property name="org.kie.server.controller.templatefile" value="<NFS_STORAGE>"/>
      </system-properties>

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      If the value of the org.kie.server.controller.templatefile.watcher.enabled property is set to true, a separate thread is started to watch for modifications of the template file. The default interval for these checks is 30000 milliseconds and can be further controlled by the org.kie.server.controller.templatefile.watcher.interval system property. If the value of this property is set to false, changes to the template file are detected only when the server restarts.

10. To deploy the controller.war file that you created previously into the server group, complete the following steps on the master node:

    1. Log in to the Red Hat JBoss EAP Administration console of your domain as a management user.
    2. Click Deployments → Server Groups→ main-server-group and click Add.
    3. In the dialog box, click Upload a new deployment and click Next.
    4. In the Upload Deployments dialog box, click Browse, select the controller.war file, and click Next.

    5. Click Enable and click Next.

       Note

       Make sure to check deployment unit readiness with every cluster member.

       When a deployment unit is created on a cluster node, it takes some time before it is distributed among all cluster members. You can check the deployment status using the server Administration console or REST API. However, if the query is sent to the node where the deployment was originally issued, the query will return a value of deployed. If the query is sent to a node where the deployment has not yet been distributed, the query returns DeploymentNotFoundException.

Procedure

1. Navigate to the Software Downloads page in the Red Hat Customer Portal (login required), and select the product and version from the drop-down options:

   • Product: Process Automation Manager
   • Version: 7.0
2. Download Red Hat Process Automation Manager 7.0.0 Add-Ons.
3. Extract the downloaded rhpam-7.0.0-add-ons.zip file to a temporary directory. The rhpam-7.0-smart-router.jar file is in the extracted rhpam-7.0.0-add-ons directory.
4. Copy the rhpam-7.0-smart-router.jar file to location where you will run the file.

5. From the temporary directory, enter the following command to start SmartRouter:

   java
   -Dorg.kie.server.router.host=<ROUTER_HOST>
   -Dorg.kie.server.router.port=<ROUTER_PORT>
   -Dorg.kie.server.controller=<CONTROLLER_URL>
   -Dorg.kie.server.controller.user=<CONTROLLER_USER>
   -Dorg.kie.server.controller.pwd=<CONTROLLER_PWD>
   -Dorg.kie.server.router.config.watcher.enabled=true
   -Dorg.kie.server.router.repo=<NFS_STORAGE>
   -jar rhpam-7.0-smart-router.jar

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   The properties in the preceding command have the following default values:

   org.kie.server.router.host=localhost
   org.kie.server.router.port=9000
   org.kie.server.controller= N/A
   org.kie.server.controller.user=kieserver
   org.kie.server.controller.pwd=kieserver1!
   org.kie.server.router.repo= <CURRENT_WORKING_DIR>
   org.kie.server.router.config.watcher.enabled=false

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   Note

   The router is capable of providing an aggregate sort, however the data returned when used through the management console is in raw format. Therefore, sorting is in whatever way individual servers return.

   Paging is supported in its standard format.

6. To use Smart Router from the client side, use the Smart Router URL instead of the Process Server URL, for example:

   KieServicesConfiguration config = KieServicesFactory.newRestConfiguration("http://smartrouter.example.com:9000", "USERNAME", "PASSWORD");

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   In this example, smartrouter.example.com is the Smart Router URL, and USERNAME and PASSWORD are the log in credentials for the Smart Router configuration.