We are migrating our EBS R12.2 (12.2.4) database to EXADATA and cloning the application tier.
As part of the migration we are migrating the concurrent request log and output files to the new application host.
After migrating the log files and updating the fnd_concurrent_requests table with the correct location and bouncing the application tier we are not able to open the concurrent request log files we are getting the below message.
"An error occurred while attempting to establish an Applications File Server connection with the node FNDFS_<old_hostname>. There may be a network configuration problem, or the TNS listener on node FNDFS_<old_hostname> may not be running. Please contact your system administrator."
Do a select node_name from fnd_nodes and get the exact name and case of your new concurrent manager server.
If you didn't already cleanup nodes from the old server during migration, shutdown applications and run fnd_conc_clone,setup_clean as apps and run autoconfig on db and app tiers.
Make sure fnd_concurrent_requests has the correct name and case from fnd_nodes in logfile_node_name and outfile_node_name, and ensure logfile_name and outfile_name paths are exactly correct. Copy one file full path from the database and ls -l that file to ensure the server actually finds it.