at our company we have installed a Icinga together with PNP4Nagios. We've got a rare problem with the perfdata files PNP4Nagios creates.

Each couple of weeks, we notice that our icinga server stops working correctly because it runs out of inodes. I've been looking around, and I've noticed that the problem is here:

/usr/local/pnp4nagios/var/spool

Each couple of weeks, this folder contains over 300k perfdata files of this type: perfdata.1336058870

I think it must be a PNP4Nagios problem, because I think that normally each "X" time, PNP4Nagios should override existing perfdata files to NOT generate new ones.

Do you have any idea on what I could change or what I must do to solve this problem?

Thanks in advance.