High Availability Data Guard, Sharding and Global Data Services (MOSC)

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Application will not connect to database after ADG Switchover

edited Jun 24, 2014 12:46AM in High Availability Data Guard, Sharding and Global Data Services (MOSC) 7 commentsAnswered

Hello Friends -

Oracle 11.2.0.3. Primary is on server A, Physical Standby is on Server B.  Application front-end is connected to Primary.  I perform a Switchover via SQL.  Application is disconnected from Primary in the process.

When switch is complete [Primary is now Standby and Standby is now Primary] the application throws an error when attempting to connect:

      "Unhandled Exception" Error Encountered unexpected database error (101) in 0040! Last SQL: SELECT LOG_LoginHistory_SEQ.NEXTVAL from DUAL.

I have opened a ticket with the vendor.  I connected without error using Oracle SQL Developer.  Not sure if vendor has in-house ADG experience.  I am new to ADG as well.

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