RASTERIO_BEST_PRACTICES.md

Best practices for using rasterio

This is based on tests from here. If you are using rasterio to load data over HTTP(S), add the following to your script before you use rasterio:

import os
# Some tricks to make rasterio faster when using vsicurl -- see https://github.com/pangeo-data/cog-best-practices
RASTERIO_BEST_PRACTICES = dict(
    CURL_CA_BUNDLE='/etc/ssl/certs/ca-certificates.crt',
    GDAL_DISABLE_READDIR_ON_OPEN='EMPTY_DIR',
    AWS_NO_SIGN_REQUEST='YES',
    GDAL_MAX_RAW_BLOCK_CACHE_SIZE='200000000',
    GDAL_SWATH_SIZE='200000000',
    VSI_CURL_CACHE_SIZE='200000000'
)
os.environ.update(RASTERIO_BEST_PRACTICES)