forked from MapComplete/MapComplete
71 lines
2.6 KiB
Markdown
71 lines
2.6 KiB
Markdown
# Setting up a synced OSM-server for quick layer access
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## Setting up the SQL-server:
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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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Then, connect to this databank with PGAdmin, create a database within it.
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Then activate following extensions for this database (right click > Create > Extension):
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- Postgis activeren (rechtsklikken > Create > extension)
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- HStore activeren
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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)
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- Run `max_connections = 2000;` and `show config_file;` to get the config file location (in docker). This is probably `/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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## Create export scripts for every layer
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Use `vite-node ./scripts/osm2pgsql/generateBuildDbScript.ts`
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## Importing data
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Install osm2pgsql (hint: compile from source is painless)
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To seed the database:
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````
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osm2pgsql -O flex -S build_db.lua -s --flat-nodes=import-help-file -d postgresql://user:password@localhost:5444/osm-poi <file>.osm.pbf
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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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## Deploying a tile server
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pg_tileserv kan hier gedownload worden: https://github.com/CrunchyData/pg_tileserv
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````
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export DATABASE_URL=postgresql://user:password@localhost:5444/osm-poi
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nohup ./pg_tileserv &
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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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# Rebooting:
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-> Restart the docker container
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->
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