[Maps] Increase geojson upload file size

[thomasneirynck]

The 50MB limit for GeoJson upload is small. Ensure GeoJSON can upload files of arbitrary size.

[elasticmachine]

Pinging @elastic/kibana-gis (Team:Geo)

[thomasneirynck]

Geojson upload posts the entire contents as a single payload containing all features to the Kibana-server. To upload larger files, consider uploading the contents in chunks.

[kindsun]

@thomasneirynck It actually does split up the payload into multiple chunks, currently set by the constant: export const MAX_BYTES = 31457280;. Given the max size is 50 MB, the most you'll ever see is 2 chunks. The chunking generally works well, we just need to be able to clear old data once it's been indexed. Basically the 5th checkbox on this issue which has overlap with this one.

[nreese]

closed by #92620