SSIS package started failing when I execute the package though all validations are successful. The failure was related to oracle connection failure.
I had to change the package to Execute in 32 bit to fix the connectivity failure.
Actual Error Code fore reference:
[OLE DB Source ]
Error: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER.
The AcquireConnection method call to the connection manager “oracleserver.oracleuser” failed with error code 0xC0202009.
There may be error messages posted before this with more information on why the AcquireConnection method call failed.
[Connection manager “OracleServer.OracleUser”] Error: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x8007007E.
An OLE DB record is available. Source: “Microsoft OLE DB Service Components” Hresult: 0x8007007E Description: “The specified module could not be found.”.
[SSIS.Pipeline] Error: Plateau_Source_1 failed validation and returned error code 0xC020801C.