Docs: update and simplify docs

Docs/ServerConfig/hetzner/hetzner.txt

@@ -45,9 +45,9 @@ A simple server logging everything it receives
 Provides geolocation based on
 
     ```
-    git clone https://github.com/pietervdvn/geoip-server
+    git clone https://source.mapcomplete.org/MapComplete/geoip-server.git
     cd geoip-server
     mkdir data
-    # Drop the databases from https://lite.ip2location.com/ in the data dir
+    # Drop the databases from https://lite.ip2location.com/ in the data dir; #IP-COUNTRY-with latitude/longitude; from https://lite.ip2location.com/database/db5-ip-country-region-city-latitude-longitude
-    npm run start
+    nohup npm run start >> data/log.txt &
     ```

Docs/SettingUpPSQL.md

@@ -6,20 +6,38 @@ Debian machine (e.g. Ubuntu)
 
 `apt install osmium-tool docker.io osm2pgsql`
 
+## Tuning the database
+
+
+
 ## Setting up the SQL-server (only once):
 
-`sudo docker run --name some-postgis -e POSTGRES_PASSWORD=password -e POSTGRES_USER=user -d -p 5444:5432 -v ~/data/pgsql/:/var/lib/postgresql/data postgis/postgis`
 
-Increase the max number of connections. osm2pgsql needs connection one per table (and a few more), and since we are making one table per layer in MapComplete, this amounts to a lot.
+For performance, docker needs a specific config file. See https://osm2pgsql.org/doc/manual.html#tuning-the-postgresql-server
 
-- Open PGAdmin, open the PGSQL-tool (CLI-button at the top); alternativly:
+A suggested config file is:
-  `psql --host=172.17.0.1 --port=5444 --user=user`
+
-- Run `show config_file;` to get the config file location (in docker). This is probably
+(On HDD, 180GB RAM)
-  `/var/lib/postgresql/data/postgresql.conf`
+
-- In a terminal, run `sudo docker exec -i <docker-container-id> bash` (run `sudo docker ps` to get the container id)
+```
-- `sed -i "s/max_connections = 100/max_connections = 5000/" /var/lib/postgresql/data/postgresql.conf`
+max_connections = 5000 # needed for OSM2PGSQL
-- Validate with `cat /var/lib/postgresql/data/postgresql.conf | grep "max_connections"`
+shared_buffers = 2GB
-- `sudo docker restart <ID>`
+work_mem = 200MB
+maintenance_work_mem = 15GB
+autovacuum_work_mem = 4GB
+wal_level = minimal
+checkpoint_timeout = 120min
+max_wal_size = 20GB
+checkpoint_completion_target = 0.9
+max_wal_senders = 0
+random_page_cost = 8.0
+```
+Save this config file somewhere as "postgresql.conf"
+
+- Start the docker with: `docker run --name osm-cache-db -e POSTGRES_PASSWORD=password -e POSTGRES_USER=user -d -p 5444:5432 -v ~/data/pgsql/:/var/lib/postgresql/data -v postgresql.conf:/var/lib/postgresql/data/postgresql.conf postgis/postgis`
+- Now, change the config file. This can easily be done as the config file is mirrored to the host system at:
+`~/data/pgsql/postgresql.conf`. Overwrite this file with configuration above, e.g. with `cp`
+- Restart the db: `docker restart osm-cache-db`
 
 # Seeding the data