Maximum open file descriptors for Unix-based platforms
For Unix-based platforms, the default open file descriptor must be set to 200000 to allow the configuration wizard commands to run properly during migration.
The default open file descriptor limit for the Unix user profile used to install and run the WebSphere Portal and configuration wizard servers should be set to 200000. Update this value in the user profile for any migrations using the configuration wizard. The typical syntax is ulimit -n 200000. However, we can refer to the documentation specific to the platform to confirm.
If we run the migration commands manually, set the open file descriptor to 200000 prior to running the WASPreUpgrade.sh and WASPostUpgrade.sh commands.