Enable SDP Support for JDBC

Complete the following steps:

1. Ensure that you have created the Grid Link Data Sources for the JDBC connectivity on ComputeNode1 and ComputeNode2, as described in Section 7.6 “Configuring Grid Link Data Source for Dept1_Cluster1” of the Oracle® Fusion Middleware Exalogic Enterprise Deployment Guide at http://docs.oracle.com/cd/E18476_01/doc.220/e18479/optimization.htm#BABHEDI.

   The console automatically generates the complete JDBC URL, as shown in the following example:

   jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.x.x.x)(PORT=1522))(CONNECT_DATA=(SERVICE_NAME=myservice)))

2. In the JDBC URL, replace TCP protocol with SDP protocol. For example:

   jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=sdp)(HOST=192.x.x.x)(PORT=1522))(CONNECT_DATA=(SERVICE_NAME=myservice)))

3. Manually add the system property -Djava.net.preferIPv4Stack=true to the startWebLogic.sh script, which is located in the bin directory of base_domain, using a text editor as follows:
   1. Locate the following line in the startWebLogic.sh script:

      . ${DOMAIN_HOME}/bin/setDomainEnv.sh $*

   2. Add the following property immediately after the above entry:

      JAVA_OPTIONS="${JAVA_OPTIONS} -Djava.net.preferIPv4Stack=true -Doracle.net.SDP=true"

   3. Save the file and close.
4. Restart the Managed Server as follows:
   1. In the administration console, click Environment > Servers. The Summary of Servers page is displayed.
   2. Select a Managed Server, such as WLS1, by clicking WLS1. The Settings for WLS1 page is displayed.
   3. Click the Control tab. Select WLS1 in the Server Status table. Click Start.