CORBA protocol : Failed to bind to session using IOR

PROBLEM:

A connection error has occurred.
- OracleBI Discoverer was unable to complete the connection initialization.
- Attempt 1. CORBA protocol : Failed to bind to session using IOR : null Hint An administrator can further diagnose connection problems by running the "checkdiscoverer" script under <ORACLE_HOME>/discoverer/util.


SOLUTION:

 To implement the solution, please execute the following steps.  Please backup files prior to modifying them.
1. Edit the opmn.xml file: (10.1.2 in $ORACLE_HOME/opmn/conf ) (11.1.1 in $ORACLE_INSTANCE\config\OPMN\<opmn-component-name>\ )
2. Increase the value of maxprocs parameter

3. Re-load the opmn.xml file ('opmnctl reload') recycle the Discoverer middle tier ('opmnctl stopall', 'opmctl startall')


ref:Discoverer Plus or Viewer Connection Attempt Receives a CORBA Error, Hard Limit (Doc ID 399846.1)