During the holiday season, our LibreNMS ran out of diskspace. After cleaning up the mess, everything seems to work just fine, except the graphs we have on our Dashboards. All other widgets works just fine, but there is no data in the graph widget, its just white. If I go to the actual graph on one of the switches, it is there, and working just fine.
I cannot find anything related to this in the librenms logfiles.
What can be causing this?
We also have a custom website creating graphs from LibreNMS, using the API.
API authentication seems to work just fine, but no graphs are drawn, and we get errors like this:
Error getting device with id: 25
Does the graph widget use the LibreNMS API to create graphs?
I have tried different values, and from different switches and routers, without getting any graphs. All I see is “generic-graph”, and then it turns blank.
Here is some screenshots
Here is the config I have used for two years, before this issue occurred, its monitoring of a port-channel on our nexus7k: