[SOLVED] Changes to static DHCP mappings are not being applied

[MrKoen]

If I'm making changes to static DHCP mappings, they're not getting applied. The system logs shows the following output whenever I apply updates to DHCP mappings:

php-fpm[68420]: /services_dhcp.php: The command '/usr/local/sbin/dhcpd -user dhcpd -group _dhcp -chroot /var/dhcpd -cf /etc/dhcpd.conf -pf /var/run/dhcpd.pid em0 em0_vlan3 em0_vlan2 em0_vlan4 em0_vlan5 em0_vlan7' returned exit code '1', the output was 'Internet Systems Consortium DHCP Server 4.2.8 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Wrote 0 deleted host decls to leases file. Wrote 0 new dynamic host decls to leases file. Wrote 154 leases to leases file.

I had a look at the /etc/dhcpd.conf file and don't see anything that is causing the problem. What would be my next step in trying to figure out why dhcpd is crashing on my config?

[MrKoen]

I've tried clearing the DHCP reservations in /var/dhcpd/etc/dhcpd.conf, but once dhcpd starts again, the content gets written back. No idea where it pulls it from.

[awebster]

There might be issues in the leases file.
Try blowing away /var/dhcpd/var/db/dhcpd.leases and restarting dhcpd.

[MrKoen]

That was it! Clearing that file and restarting DHCPD fixed it! You're my hero of the day! THANKS!