When listing a directory with more than 20000 files in it via FTP, it takes more than 2 minutes to complete.
ProFTPd version 1.3.6 is installed:
# proftpd -v
ProFTPD Version 1.3.6
High CPU usage 100% maybe observed on the server.
The issue is also registered as a Plesk bug with ID PPPM-9486, to track down when the issue will be resolved on ProFTPd side
Note: Consider subscribing to this article in order to get notified when the fix is released or check for the ID in our changelog
As a workaround, setup the following additional configuration file:
Connect to the server via SSH
Create the following file:
# touch /etc/proftpd.d/70-disable-fs-cache.conf
Add the following text:
Restart the service:
# service xinetd restart