forked from MapComplete/MapComplete
99 lines
3.2 KiB
Markdown
99 lines
3.2 KiB
Markdown
# Setting up a synced OSM-server for quick layer access
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## Setting up the SQL-server (only once):
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`sudo docker run --name some-postgis -e POSTGRES_PASSWORD=password -e POSTGRES_USER=user -d -p 5444:5432 -v /home/pietervdvn/data/pgsql/:/var/lib/postgresql/data postgis/postgis`
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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.
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- Open PGAdmin, open the PGSQL-tool (CLI-button at the top); alternativly: psql --host=172.17.0.1 --port=5444
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--user=user
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- Run `show config_file;` to get the config file location (in docker). This is probably
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`/var/lib/postgresql/data/postgresql.conf`
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- In a terminal, run `sudo docker exec -i <docker-container-id> bash` (run `sudo docker ps` to get the container id)
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- `sed -i "s/max_connections = 100/max_connections = 5000/" /var/lib/postgresql/data/postgresql.conf`
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- Validate with `cat /var/lib/postgresql/data/postgresql.conf | grep "max_connections"`
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- `sudo docker restart <ID>`
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# Seeding the data
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> The following steps are also automated in .forgejo/workflows/update_database.yml
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## Importing data
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Install osm2pgsql (hint: compile from source is painless)
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Download the latest with:
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`nohup transmission-cli https://planet.osm.org/pbf/planet-latest.osm.pbf.torrent &>nohup_transmission.log &`
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which will download the data to `~/Downloads`
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To seed the database:
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````
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nohup osm2pgsql -O flex -S build_db.lua -s --flat-nodes=import-help-file -d postgresql://user:password@localhost:5444/osm-poi <file>.osm.pbf >> seeddb.log
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# To see the progress
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tail -f seeddb.log
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````
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Storing properties to table '"public"."osm2pgsql_properties" takes about 25 minutes with planet.osm
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Belgium (~555mb) takes 15m
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World (80GB) should take 15m*160 = 2400m = 40hr
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73G Jan 23 00:22 planet-240115.osm.pbf: 2024-02-10 16:45:11 osm2pgsql took 871615s (242h 6m 55s; 10 days) overall on lain.local with RAID5 on 4 HDD disks, database is over 1Terrabyte (!)
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Server specs
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Lenovo thinkserver RD350, Intel Xeon E5-2600, 2Rx4 PC3
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11 watt powered off, 73 watt idle, ~100 watt when importing
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HP ProLiant DL360 G7 (1U): 2Rx4 DDR3-memory (PC3)
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Intel Xeon X56**
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## Updating data
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`osm2pgsql-replication update -d postgresql://user:password@localhost:5444/osm-poi -- -O flex -S build_db.lua -s --flat-nodes=import-help-file`
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## Deploying a tile server
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pg_tileserv can be downloaded here: https://github.com/CrunchyData/pg_tileserv
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In the directory where it is downloaded (e.g. `~/data`), run
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First, look up the latest suitable database on https://mapcomplete.org/status
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````
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export DATABASE_URL=postgresql://user:password@localhost:5444/osm-poi.{date-of-suitable-database}
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nohup ./pg_tileserv >> pg_tileserv.log &
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````
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Tiles are available at:
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````
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map.addSource("drinking_water", {
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"type": "vector",
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"tiles": ["http://127.0.0.2:7800/public.drinking_water/{z}/{x}/{y}.pbf"] // http://127.0.0.2:7800/public.drinking_water.json",
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})
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````
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# Starting the summary server
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`npm run summary-server` in the git repo
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# Connecting to the database
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Setup the SSH-tunnel:
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`ssh folky.me
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ssh -L 5444:127.0.0.1:5444 lain`
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Open a second terminal:
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`ssh -L 5444:127.0.0.1:5444 folky.me` `
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Connect pgAdmin
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# Rebooting:
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-> Restart the docker container
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