We are using Oracle names server to connect to our database. We have issue last week regarding Publishing reports via ADI 7.2 . Getting following error :
"An error occured while attempting to establish an Applications File Server connection.There may be a network configuration problem, or the TNS listener may not be running.Nodename : Hostname"
It is clear something wrong with Apps listener, we tried bouncing it and Run one report like "Active Users" and tried viewing output. It was working, but still ADI Report Publishing was not working. We were clue less what is happening, we thought Names server might be an issue and we bounced Names server too, but that too didn't helped. As truely said if nothing works go and read the readme. We went and look at how ADI select FNDFS values, this is how
"ADI selects the node_name from the FND_CONCURRENT_REQUESTS table, appends that value to FNDFS_ and then looks in the TNSNAMES.ora file for 'directions' on what host to go
to and what port to ping for the FNDFS listener service"
So while checking for node_name value we got 2 records, one for virtual host and other one for physical host. That clears our issue, we looked at our concurrent manager node name. Again we have virtual host entry in that. For resolving this without downtime, we add one more entry in names server for virtual host FNDFS_. And vola it worked. But during weekend we took downtime to resolve concurrent manager node_name back to physical host.
Happy Troubleshooting !!!