OPP on Virtual Host

In one of my earlier post I have mentioned how to use Virtual host for Concurrent manager. In this post I am specifically talking about issue you might encounter while using report output as xml and it doesn't show the actual output rather it shows html tags. So just understand the concept how OPP is being used in xml reports and then look for solution.

An Application user submits an XML Publisher based report.
The Standard Concurrent Manager process the request.
The XML data file is generated by the standard concurrent manager.
This can be done by various methods:
Oracle Reports - Report Definition File (RDF)
XML Publisher Data Template - XML data template linked to the Data Definition
Any other process that produces XML output
A Post processing action defines that the output needs to be generated by the Output Post Processor hence it is triggered by the standard manager.
The Output Post Processor generates the final report and informs the standard Concurrent Manager whether that was successful.
The Standard Concurrent Manager finalizes the concurrent request.

Now the error in report:
----------------------------------
One or more post-processing actions failed. Consult the OPP service log for details.

Now the error in OPP log:
----------------------------------
oracle.apps.fnd.cp.util.RemoteFileException: An Error occured during file transmission in the FND File Server. The Applications File Server could not open the file 12345333 for read.

Now the resolution:
----------------------------------
Was worried why OPP is not able to read the file, we have Shared APPL_TOP too. Then though it might be due to virtual host. Then came across one note: 824887.1, it was like sure shot for me and it worked. There is a profile option "Concurrent: Force Local Output File Mode" it was set to No I made it Yes and checked the failed request. Vola it worked as expected and my team mates were jumping. For more detail about this profile look at metalink note mentioned earlier.

Happy Troubleshooting !!!