currently we experience a problem with Oracle SCAN in or production environment:
The production environment has a IIS 6 / .Net 3.5 frontend server and
an Oracle 11gR2 2-node-cluster with loadbalancer.
We use dotConnect for Oracle 18.104.22.168
If Oracle SCAN is activated following exception occurs on every connection attempt:
Code: Select all
Exception: System.AccessViolationException Message: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. StackTrace: at OciDynamicType.nativeOCIHandleFree(HandleRef , Int32 ) at OciDynamicType.OCIHandleFree(HandleRef , Int32 ) at Devart.Data.Oracle.a5.b(Object A_0) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart(Object obj)
Same configuration and SCAN is activated. The only difference is a single node cluster instead of the 2-node-cluster.
Question: Is there a known issue with dotConnect for Oracle in combination with Oracle SCAN and multinode clusters?