Snapshots could be downloaded from multiple sources at once

[sakridge]

Problem

Snapshot download from a single node is somewhat slow and prone to disconnections.

Proposed Solution

Investigate downloading from multiple sources and piece together data to improve speed and robustness of snapshot download.

[bw-solana]

Put together a proof of concept for downloading from multiple RPC nodes in parallel: https://github.com/solana-labs/solana/compare/master...brennanwatt:solana:snapshot_torrent

[bw-solana]

I believe the proof of concept is mature enough to have a productive discussion on the right path forward. See draft PR #29507

EDIT: See comment in #29507 describing flaw w/ this approach