[Tile-serving] [openstreetmap/osm2pgsql] Slow Import on Ubuntu22.04 (Discussion #1819)

[Sarah Hoffmann]

Your cache setting is far too big. You are not leaving any RAM for PostgreSQL to work with. For planet imports we recommend use of a [flatnode file](https://osm2pgsql.org/doc/manual.html#flat-node-store) together with `-C 0`.

Please read [Notes on memory usage](https://osm2pgsql.org/doc/manual.html#notes-on-memory-usage) for more details.

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