up-to-date, [Advanced installations section](Advanced-Installations.md)
contains instructions to set up and update multiple country extracts.
-#### Continuous updates
-
-This is the easiest mode. Simply run the replication command without any
-parameters:
-
- nominatim replication
-
-The update application keeps running forever and retrieves and applies
-new updates from the server as they are published.
-
-You can run this command as a simple systemd service. Create a service
-description like that in `/etc/systemd/system/nominatim-update.service`:
-
-```
-[Unit]
-Description=Continuous updates of Nominatim
-
-[Service]
-WorkingDirectory=/srv/nominatim
-ExecStart=nominatim replication
-StandardOutput=append:/var/log/nominatim-updates.log
-StandardError=append:/var/log/nominatim-updates.error.log
-User=nominatim
-Group=nominatim
-Type=simple
-
-[Install]
-WantedBy=multi-user.target
-```
-
-Replace the `WorkingDirectory` with your project directory. Also adapt user
-and group names as required.
-
-Now activate the service and start the updates:
-
-```
-sudo systemctl daemon-reload
-sudo systemctl enable nominatim-updates
-sudo systemctl start nominatim-updates
-```
-
#### One-time mode
When the `--once` parameter is given, then Nominatim will download exactly one
while true; do
nominatim replication --once
- if [ -f "/srv/nominatim/schedule-mainenance" ]; then
- rm /srv/nominatim/schedule-mainenance
+ if [ -f "/srv/nominatim/schedule-maintenance" ]; then
+ rm /srv/nominatim/schedule-maintenance
nominatim refresh --postcodes
fi
done
```
-A cron job then creates the file `/srv/nominatim/need-mainenance` once per night.
+A cron job then creates the file `/srv/nominatim/schedule-maintenance` once per night.
+
+##### One-time mode with systemd
+
+You can run the one-time mode with a systemd timer & service.
+
+Create a timer description like `/etc/systemd/system/nominatim-updates.timer`:
+
+```
+[Unit]
+Description=Timer to start updates of Nominatim
+
+[Timer]
+OnActiveSec=2
+OnUnitActiveSec=1min
+Unit=nominatim-updates.service
+
+[Install]
+WantedBy=multi-user.target
+```
+
+And then a similar service definition: `/etc/systemd/system/nominatim-updates.service`:
+
+```
+[Unit]
+Description=Single updates of Nominatim
+
+[Service]
+WorkingDirectory=/srv/nominatim
+ExecStart=nominatim replication --once
+StandardOutput=append:/var/log/nominatim-updates.log
+StandardError=append:/var/log/nominatim-updates.error.log
+User=nominatim
+Group=nominatim
+Type=simple
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Replace the `WorkingDirectory` with your project directory. Also adapt user and
+group names as required. `OnUnitActiveSec` defines how often the individual
+update command is run.
+
+Now activate the service and start the updates:
+
+```
+sudo systemctl daemon-reload
+sudo systemctl enable nominatim-updates.timer
+sudo systemctl start nominatim-updates.timer
+```
+
+You can stop future data updates, while allowing any current, in-progress
+update steps to finish, by running `sudo systemctl stop
+nominatim-updates.timer` and waiting until `nominatim-updates.service` isn't
+running (`sudo systemctl is-active nominatim-updates.service`). Current output
+from the update can be seen like above (`systemctl status
+nominatim-updates.service`).
#### Catch-up mode
a replication source with an update frequency that is an order of magnitude
lower. For example, if you want to update once a day, use an hourly updated
source. This makes sure that you don't miss an entire day of updates when
- the source is unexpectely late to publish its update.
+ the source is unexpectedly late to publish its update.
If you want to use the source with the same update frequency (e.g. a daily
updated source with daily updates), use the
continuous update mode. It ensures to re-request the newest update until it
is published.
+
+
+#### Continuous updates
+
+!!! danger
+ This mode is no longer recommended to use and will removed in future
+ releases. systemd is much better
+ suited for running regular updates. Please refer to the setup
+ instructions for running one-time mode with systemd above.
+
+This is the easiest mode. Simply run the replication command without any
+parameters:
+
+ nominatim replication
+
+The update application keeps running forever and retrieves and applies
+new updates from the server as they are published.
+
+You can run this command as a simple systemd service. Create a service
+description like that in `/etc/systemd/system/nominatim-updates.service`:
+
+```
+[Unit]
+Description=Continuous updates of Nominatim
+
+[Service]
+WorkingDirectory=/srv/nominatim
+ExecStart=nominatim replication
+StandardOutput=append:/var/log/nominatim-updates.log
+StandardError=append:/var/log/nominatim-updates.error.log
+User=nominatim
+Group=nominatim
+Type=simple
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Replace the `WorkingDirectory` with your project directory. Also adapt user
+and group names as required.
+
+Now activate the service and start the updates:
+
+```
+sudo systemctl daemon-reload
+sudo systemctl enable nominatim-updates
+sudo systemctl start nominatim-updates
+```
+
+