Cacti 0.8.7h has suddenly stopped graphing [SOLVED]

[vlassic]

My Cacti installation has been rock solid for over a year. I came in to work this morning to find that all the graphs have just stopped. They all appear to have stopped yesterday afternoon. I don't even get any data with the real time graph plugin and monitor isn't sending out email. I've looked at the Cacti log file and the poller looks like its working okay. I also checked to make sure I don't have a full partition. I even rebooted the box. Nothing is jumping out at me here. Where should I start looking?

EDIT: All I did yesterday was add a few devices.

EDIT: I got it working again by clearing the poller cache.

Thanks.

[JJX]

I have seen the same behavior (cacti stops updating graphs) if I remove a lot of graphs the same time.

After rebuilding poller cache the problem is being solved