51071 1522 20.7 0.2 99740 22168 ? TN 20:22 6:37 sort /data/project/templatetiger/public_html/dumps/itwiki-2016-01-11.txt -k4,4 -k2,2 -k3,3n -k5,5n -t? -o /data/project/templatetiger/public_html/dumps/sort/itwiki-2016-01-11.txt -T /data/project/templatetiger
This is causing excessive load on the NFS server. Please either copy the files to the local /tmp, sort locally, then copy back, or use a database.