Monday, August 27, 2012

WebLogic GridLink DataSource (10.3.5+) for RAC

WebLogic GridLink Datasource for RAC



http://docs.oracle.com/cd/E21764_01/web.1111/e13737/gridlink_datasources.htm#CHDIAGEF

Why GridLink?

  1. Fast failover leveraging ONS of RAC
  2. fast RAC disaster graceful response (planned, wait for TX finish;  non-planned, rollback)
        • manual rac shutdown 11.2- ends as non-planned
  3. runtime load-balance  
  4. one datasource configuration, no test on reserve needed
  5. SCAN address (single address for ONS and Listener, RAC nodes neutral)
  6. secure with Wallet
Configuration
  1. create GridLink Datasource
  2. connection properties:  WLS cluster style addresses for RAC
  3. configure ONS client connection
    • Fan enabled,  host:port
  4. secure with Wallet  
    • svr classpath
      • $MW_HOME/modules/com.oracle.osdt_cert_1.0.0.0.jar
      • $MW_HOME/modules/com.oracle.osdt_core_1.0.0.0.jar
      • $MW_HOME/modules/com.oracle.oraclepki_1.0.0.0.jar
    • Add wallet
  5. SDP for InfiniBand

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