This logging shows up roughly every 30 seconds.
[7007] [httpproxy] new username=system ip=127.0.0.1
[7007] [httpproxy] [system (127.0.0.1)] [new] info: id="3106" severity="info" sys="System" sub="confd" name="authentication successful" client="httpproxy" facility="system" user="system" srcip="127.0.0.1"
[7007] [httpproxy] wrote session ndwwebyZVlzxSPdWtoBa to disk
[7007] [httpproxy] [system (127.0.0.1)] [new] warn: id="3100" severity="warn" sys="System" sub="confd" name="LICENSE_EXPIRED (License has expired.)" client="httpproxy" facility="system" user="system" srcip="127.0.0.1"
[7007] [httpproxy] [system (127.0.0.1)] [new] warn: id="3100" severity="warn" sys="System" sub="confd" name="LICENSE_EXPIRED (License has expired.)" client="httpproxy" facility="system" user="system" srcip="127.0.0.1"
[7007] write_sigusr1(add,[7007])
[7007] [httpproxy] [system (127.0.0.1)] [signal_subscribe] warn: id="3100" severity="warn" sys="System" sub="confd" name="INVALID_NODE (invalid tree node specified)" client="httpproxy" facility="system" user="system" srcip="127.0.0.1" function="get" nodelist="http->uplink"
signal_subscribe: invalid node subscription:
[7007] [httpproxy] wrote session ndwwebyZVlzxSPdWtoBa to disk
[7007] write_sigusr1(add,[7005])
[7007] [httpproxy] [system (127.0.0.1)] [signal_subscribe] info: id="3100" severity="info" sys="System" sub="confd" name="signal_subscribe" client="httpproxy" facility="system" user="REF_SystemUser" srcip="127.0.0.1" pid="7005"
DESTROY [7007] write_sigusr1(del,[7007])
[7007] [httpproxy] wrote session ndwwebyZVlzxSPdWtoBa to disk