Getting this error trying to use the real time graph usage with Cacti?
The Image Cache Directory directory does not exist. Please first create it and set permissions and then attempt to open another realtime graph.
OR :
The Image Cache Directory is not writable. Please set permissions and then attempt to open another realtime graph.
Make sure the cache path directory and the folder is set properly. In the Cacti WebUI, navigate to :
Console > Settings > Misc > Cache Directory
The default path is :
/var/www/html/cache/
Make sure the directory is writable :
chmod 777 /var/www/html/cache/