RRDclean 0.38 problem(cacti 0.8.7e and PA 2.6)

[hnsmxjj]

Hi!I have installed cacti plugin RRDclean 0.38(Cacti 0.8.7e and PA 2.6).
Today I delete a device(I select to delete all graphs and data sources)and then I use RRD cleaner.At this time,I find some unused rrd files.
After I delete this unused rrd files,I find this files is still existing.
I don't know why?What shall I do?

[hnsmxjj]

The delete process will run under control of the poller. After "deleting" the unused files from console, you'll have to wait until the next poller run has completed. You will find some messages in log/cacti.log for each deleted file.