The update does not touch the collectd configuration which includes the omv-mkgraph script generation. It the script is incorrect, then it was incorrect before the upgrade.
The network statistics were working fine before the upgrade. The timestamp of /usr/sbin/omv-mkgraph was somewhere around the time of the upgrade. There was no change in the network adapter (settings). Somehow the eth0 interface was missing in the omv-mkgraph-file.
Hereby confirmed, adding and deleteting a VLAN works.
Good job @roadhawk
But I think that s' is a temporary solution, no ??
If you add an interface, like eth2, there are no graph of eth2 ... ???
The omv-mkgraph script only works correct when the network interface configuration is correct. It helps to delete and recreate the interface settings via WebGUI.
I am ok with you, i understand, there are no problem with omv-mkgraph because it is generated by scripts in /usr/share/openmediavault/mkconf/collectd.d/
A great solution is : omv-mkconf collectd
eth0 miss, will be created ...
Same here, no network graphs!!!
After upgrading to omv 2.1 my eth0 graphs don't work.
PS: I have a raspberry pi 2 box.
Mine is now fixed -> Disabling and re-enabling the monitor feature fixed it for me!!!
This fixed my issue also.
A lot of times I see people where their graphs data is corrupted. These are best instructions I give to reset graphs with corrupted database.
rm -r /var/lib/rrdcached/db/localhost
service collectd restart
service rrdcached restart
This fixed my missing graphs, too. Obviously everything got corrupted because of some issues I had with ntp on a banana pi. Thanks!
Re-enabling the monitor.
In folder /var/lib/rrdcached/db/localhost/interface-eth0/ I see files with current timestamp.
And there's no network graphs... The rest of graphs is working perfect.
I'm running OMV 4.1.22-1 on Bananapi