FAQ: Can I Download Earthdata Granules In Parallel?

[GES DISC - jimacker]

Yes Earthdata Granules can be downloaded in parallel, but concurrent connections must be limited to no more than three.

You may experience a "Concurrent Connection Limit Reached" error if you exceed three concurrent connections.

When using curl, the following flags will only use a maximum of three concurrent connections: --parallel --parallel-max 3
When using wget, the 'xargs' tool must be used with the following flags: -n 1 -P 3
When using Python, use the concurrent.futures library to limit the amount of workers to 3 when calling downloads with requests:
with concurrent.futures.ThreadPoolExecutor(max_workers=3) as executor:
    executor.map(download_granule_function, input_urls_list)