It doesnt work. I tested it now in virtual guest with interface down network-online.target usually means that all configured network devices are up and have an IP address assigned network-online.target will time out after 90s. Enabling this might considerably delay your boot even if the timeout is not reached
source: https://systemd.io/NETWORK_ONLINE/https://systemd.io/NETWORK_ONLINE/ On St, 2024-10-30 at 07:54 +0000, Veronique Lefebure wrote: > > Hi, > > > Isn't it the purpose of the "Unit" section in the service file ? > > > > > cat /usr/lib/systemd/system/kea-dhcp4.service > > > [Unit] > Description=Kea DHCPv4 Service > Documentation=man:kea-dhcp4(8) > Wants=network-online.target > After=network-online.target > After=time-sync.target > > > [Service] > User=kea > AmbientCapabilities=CAP_NET_BIND_SERVICE CAP_NET_RAW > Environment="KEA_PIDFILE_DIR=/run/kea" > Environment="KEA_LOCKFILE_DIR=/run/kea" > Environment="KEA_LOGGER_DESTINATION=/var/log/kea" > ConfigurationDirectory=kea > RuntimeDirectory=kea > RuntimeDirectoryPreserve=yes > LogsDirectory=kea > LogsDirectoryMode=0750 > StateDirectory=kea > ExecStart=/usr/sbin/kea-dhcp4 -c /etc/kea/kea-dhcp4.conf > ExecReload=/bin/kill -HUP $MAINPID > > > [Install] > WantedBy=multi-user.target > > > > > From: Kea-users <kea-users-boun...@lists.isc.org> on behalf of Wagner > Vlastimil - HZS Ústeckého kraje <vlastimil.wag...@hzscr.cz> > Sent: Wednesday, October 30, 2024 7:50 AM > To: kea-users@lists.isc.org <kea-users@lists.isc.org> > Subject: Re: [Kea-users] [EXTERNAL] Kea fail start after power outage, mysql > connect problem > > > > > I made in systemd service: > > ExecStartPre=/bin/bash -c "until host db.example.com; do sleep 1; done" > > but i thought that Kea have solution > > VW > > On Út, 2024-10-29 at 12:23 +0000, Geist, Dan (CCI-Atlanta) via Kea-users > wrote: > > > > > > > > Have you considered putting in a “watchdog” timer at the operating system > > level to restart the OS after a number of minutes (if network link is down) > > to allow your network gear more time to > > recover? > > > > > > > > > > > > > > > > > > > > From:Kea-users <kea-users-boun...@lists.isc.org> on behalf of Wagner > > Vlastimil - HZS Ústeckého kraje <vlastimil.wag...@hzscr.cz> > > Date: Tuesday, October 29, 2024 at 8:00 AM > > To: kea-users@lists.isc.org <kea-users@lists.isc.org> > > Subject: [EXTERNAL] [Kea-users] Kea fail start after power outage, mysql > > connect problem > > > > > > Hi > > > > I have Kea servers on places where sometimes doesnt work power (longer than > > UPS) > > I have config, leases and hosts in database MySQL > > When power is back server get up faster than switches and routers so > > interface is down and Kea doesnt start > > > > říj 29 12:42:15 dhcp-01.hzsulk.cz kea-dhcp4[8647]: ERROR > > [kea-dhcp4.dhcp4.140105088432256] DHCP4_CONFIG_LOAD_FAIL configuration > > error using file: /etc/kea/kea-dhcp4.conf, reason: during update > > from > > config backend database: Unknown server host 'db.example.com' (-2) > > říj 29 12:42:15 dhcp-01.hzsulk.cz kea-dhcp4[8647]: ERROR > > [kea-dhcp4.dhcp4.140105088432256] DHCP4_INIT_FAIL failed to initialize Kea > > server: configuration error using file '/etc/kea/kea- > > dhcp4.conf': > > during update from config backend database: Unknown server host > > 'db.example.com' > > > říj 29 12:42:15 dhcp-01.hzsulk.cz kea-dhcp4[8647]: ERROR > > [kea-dhcp4.dhcp4.140105088432256] DHCP4_PARSER_COMMIT_FAIL parser failed to > > commit changes: during update from config backend database: > > Unknown server host 'db.example.com' (-2) > > > > > > Config is: > > > > > > "Dhcp4": { > > "server-tag": "DHCP-01", > > "interfaces-config": { > > "interfaces": ["ens33"], > > "service-sockets-max-retries": 100, > > "service-sockets-retry-wait-time": 5000 > > }, > > "config-control": { > > "config-databases": [{ > > "type": "mysql", > > "name": "kea", > > "user": "kea", > > "password": "fhgfethfgthtfeg", > > "host": "db.example.com", > > "port": 3306, > > # "retry-on-startup": "true", > > "max-reconnect-tries" : 30000, > > "reconnect-wait-time": 3000 > > }], > > "config-fetch-wait-time": 20 > > }, > > > > No setting work to try connect again > > > > > > VW > -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list Kea-users@lists.isc.org https://lists.isc.org/mailman/listinfo/kea-users
