Enable ssh and ssh into your mycloud:
Windows/Putty: sshd@mycloudip (into Host Name (or IP address) (Port 22) (SSH)
Linux: ssh sshd@mycloudip (terminal)
Type in your password.
Then type ‘restsdk.sh stop’ (‘mysqladmin shutdown’ maybe as well). It should stop indexing so much although yours look rather aggressive. 
The next stuff is just suggestions and properly not needed if you don’t like to mess with it to much. 
Evt. check what’s going on by typing ‘vi /var/log/user.log’ inside of the mycloud. Or ‘top’ (‘q’ to quit). typing ‘exit’ will logout.
A user in this forum found it also was related to a cronjob. Type ‘crontab -e’ to enter editor and put in # in front of a line like so:
#0 */4 * * * /usr/sbin/rlog -s /usr/local/modules/files/syslog_rotate.conf
Although i panicked and inserted # in front of it all both with ‘vi /var/spool/cron/crontabs/root’, ‘vi /etc/cron.d/wdlog’ and deleted the stupid sh shortcuts files inside of ‘/usr/local/sbin/’ (using f.eks. ‘rm /usr/local/sbin/PullWdlogConfig.sh’) (PullWdlogConfig.sh, getAgreement.sh, wdLogUploader.sh, cleanAlert.sh and /usr/sbin/rt_script.sh).
Other files that can be either #'ed or deleted ‘/etc/nas/wdlog.ini’ (the latter might stop the user.log from running after a while) and ‘/usr/local/config/wdlog.conf’.
