$ rm output.zip

$ python3 ./update.py | pv >output.geojsons

	1.36GiB 0:01:28 [15.8MiB/s]
	wc -l output.geojsons
	2503747 output.geojsons
	:r run_id.txt
	<a href="https://www.alltheplaces.xyz/">All The Places</a> 2023-07-08-13-31-58
	!unzip -l output.zip | wc -l
	1635

$ /usr/bin/time ogr2ogr -t_srs EPSG:3857 -progress output.fgb output.geojsons -fieldTypeToString All | cat
	0...10...20...30...40...50...60...70...80...90...100 - done.
	475.48user 14.90system 8:38.11elapsed 94%CPU (0avgtext+0avgdata 394464maxresident)k
	4948152inputs+4488848outputs (1409major+139587minor)pagefaults 0swaps

$ dua output.*
	 227.25 MB output.zip
	   1.20 GB output.fgb
	   1.46 GB output.geojsons
	   2.89 GB total

~/tippecanoe$ git log --oneline -1
	1c3bd535 (HEAD -> main, felt/main) Add a new option to set an initial value for an attribute>
$ tippecanoe --version
	tippecanoe v2.27.0

 $ /usr/bin/time ~/pkg/tippecanoe/tippecanoe -o output.mbtiles --layer alltheplaces --read-parallel output.geojsons --cluster-densest-as-needed --drop-rate=1 --maximum-zoom=11 --cluster-maxzoom=g --maximum-tile-features=20000 --attribution="$(cat run_id.txt)"

# readGeometry: flatgeobuf has unsupported geometry type 0
but ST_GeometryType only gives POINT, LINESTRING, and MULTILINESTRING. sigh.
whatever, just feed the geojson directly to tippecanoe.
tippecanoe has learnt to not cluster at the maximum zoom.

/usr/bin/time ~/pkg/tippecanoe/tippecanoe -o output.mbtiles -L '{"file":"output.geojsons","layer":"alltheplaces"}' --cluster-densest-as-needed --drop-rate=1 --maximum-zoom=11 --cluster-maxzoom=g --maximum-tile-features=20000 --attribution="$(cat run_id.txt)"

	Try using --drop-fraction-as-needed or --drop-densest-as-needed.
	decompression error -3 incorrect header check
	Command exited with non-zero status 106
	2628.87user 59.63system 48:00.59elapsed 93%CPU (0avgtext+0avgdata 1660876maxresident)k
	6866696inputs+14309064outputs (242552major+2950763minor)pagefaults 0swaps
	👉	106

Still gives
tile 11/1072/717 has 35600 features, >20000
decompression error -3 incorrect header check
even with a not full disk.

Add --no-tile-compression

No, need to remove --maximum-tile-features=20000

 ~/alltheplaces ¶ curl -O --compressed https://data.alltheplaces.xyz/runs/2023-07-15-13-31-57/output/stadt_zuerich_ch.geojson

Unfortunately, this file on its own doesn't reproduce the error. It fails cleanly as it irredeemably contains more than the requested 20_000 features.

OK this works:

 ~/alltheplaces ¶ /usr/bin/time ~/pkg/tippecanoe/tippecanoe -o output.mbtiles -L '{"file":"output.geojsons","layer":"alltheplaces"}' --cluster-distance=50 --drop-rate=1 --maximum-zoom=12 --cluster-maxzoom=g --attribution="$(cat run_id.txt)"

cluster_distance,maximum_zoom,size
10,11,469M
50,11,380M
10,12,695M
50,12,554M
25,12,607M
25,13,891M