Linux server terminate the import process. Need to be fixed by checkin the log error files in order to continue the worpress import csv file many hours without to be terminate.
The same setting need to be done in both servers( Centos 6)/ (Debian Linux 7)
Additional need to be done the follow checks and recommendations http://www.wpallimport.com/documentation/troubleshooting/terminated-imports/
Need to knwo the error logs + what configuration or set up done in order to solve the issue
need to have the ability the server to import data min 3 days