missing new data from graph [FIXED]

[wardrobe]

i have a single snmp graph that all of a sudden doesnt display new data.

i have looked at the logs and can see that the check is getting data and that rrd says ok.

i have rebuilt the poller cache and also rebooted the machine (i got 2 blips on the graph and its stopped)

i have no errors in my log.

i have about 100 graphs that are fine

stumped for what to do, i can manually snmp get data from the device and i can see the data in the poller log file. its just not displaying in the graph.

help

[BSOD2600]

1) read http://forums.cacti.net/viewtopic.php?t=11747

2) To track down why its stopped graphing, you can read through http://docs.cacti.net/node/283 for assistance.

[wardrobe]

Cacti users sometimes complain about NaN's in their graphs

what does NaN stand for i cant find in the link, maybe its worth having it?

[BSOD2600]

nan basically means no data returned. Even though your problem might not be 'nan's in their graphs', the same troubleshooting steps still apply to your situation.

[wardrobe]

cheers, im infront of the production box now i'll go through your instructions,

thanks for taking the time to help

[wardrobe]

cheers

rrdtool tune <rrd file> --maximum <ds-name>:<new ds maximum>
fixed it.

the missing entries must of been >100 i had increased the webinterface to 500 but had to use the above line to force to 500.

i now have graphing again, it was the entries above 100 that were missing.

so i now know that the web connections to the server have almost doubled over night as they were usually around the 50-60 mark.

Thanks for the help, i would of probably found the answer searching for NaN but didnt know that what i was suffering from was a NaN.