If @otadr had the graphs working in CU174 and they are giving the error message in CU175 then that looks like there is a bug present.
To confirm, I started QOS up on CU175 and after 30 mins I still had the following status
The
/var/log/rrd/ directory had the following files
drwxr-xr-x 4 root root 4.0K Jun 13 20:22 .
drwxr-xr-x 18 root root 4.0K Jun 13 11:56 …
-rw-r–r-- 1 root root 745K Jun 13 20:40 class_1-1_red0.rrd
-rw-r–r-- 1 root root 745K Jun 13 20:40 class_2-1_imq0.rrd
drwxr-xr-x 3 root root 4.0K Mar 6 2017 collectd
-rw-r–r-- 1 root root 29K Jun 13 20:40 hddshutdown-sda.rrd
-rw-r–r-- 1 root root 29K Jun 13 20:40 hddtemp-sda.rrd
drwxr-xr-x 2 root root 4.0K Apr 24 00:00 wio
Then I installed CU174 on a vm system and started QOS the same way and virtually straight away I had a graph, even if there was no content on it yet.
The
/var/log/rrd/ directory contained the following files:-
So in CU175 there are many files missing which in CU174 are created straight away when QOS is started.
I would suggest that @otadr raises a bug for this issue.
https://wiki.ipfire.org/devel/bugzilla
https://bugzilla.ipfire.org/
Your IPFire People Email Adrress and Password will act as your login credentials for the IPFire Bugzilla.