After the installation of the Photo Station application on my Synology ds413j, I transfer all my photos to the photo's folder created by this application.
So I transfer my photos to the NAS and then I can see the NAS CPU running 100% for a very very long time...
You can follow the "Conversion Progress" of the photos but nothing seems to be converted despite the fact the high CPU rate.
You can follow these 4 steps to solve the problem :
1) Enable SSH on the NAS.
Control Panel > Terminal > check the Enable SSH Service box.
2) Connect to the NAS (with a ssh client like putty or mRemoteNG) with the root account
3) Edit the "/usr/syno/etc/thumb.conf" and "/usr/syno/etc.defaults/thumb.conf" files and comment or remove these lines :