[Kea-users] Unable to open PID file '/var/lib/kea/dhcp4.leases.pid' for write

[Schöpke, Sebastian]

Hi community,
I've encountered a strange issue with the lease file cleanup process. I’m running KEA 2.6. In the logs, I see the following message:
DhcpLFC[957938]: FATAL [DhcpLFC.137942855559616] LFC_FAIL_PID_CREATE : Unable to open PID file '/var/lib/kea/dhcp4.leases.pid' for write
However, the lease file does not exist, and the directory is writable by the _kea user:
$ ls -al /var/lib/kea/
drwxr-x---  2 _kea _kea       4096 Jan 26 10:40 .
drwxr-xr-x 53 root root       4096 Nov 14  2024 ..
-rw-r--r--  1 _kea _kea 1228404934 Jan 26 11:09 dhcp4.leases
$ whoami

_kea

$ touch /var/lib/kea/dhcp4.leases.pid
$ ls /var/lib/kea/dhcp4.leases.pid
/var/lib/kea/dhcp4.leases.pid
The _kea user can definitely write to this location.
So what could be going wrong here? Any help would be appreciated.
Thank you!
Best regards,
Sebastian Schoepke

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