jetstreamer-firehose

A utility that allows replaying Solana blocks (even all the way back to genesis!) over a geyser plugin or the Jetstreamer plugin runner.

Based on the demo provided by the Old Faithful project in https://github.com/rpcpool/yellowstone-faithful/tree/main/geyser-plugin-runner

Configuration

Environment variables

• JETSTREAMER_COMPACT_INDEX_BASE_URL (default https://files.old-faithful.net): base URL for downloading compact index CAR artifacts. Override this when mirroring Old Faithful data to your own storage.
• JETSTREAMER_NETWORK (default mainnet): network identifier appended to index filenames so you can point the replay engine at other clusters (for example testnet).
• JETSTREAMER_NETWORK_CAPACITY_MB (default 1000): assumed network throughput in megabytes per second when sizing the firehose thread pool. Increase or decrease to match your host's effective bandwidth.

Notes:

• JETSTREAMER_COMPACT_INDEX_BASE_URL accepts a full HTTP(S) URL and is resolved relative to per-epoch paths (for example https://domain/450/...).
• Changing JETSTREAMER_NETWORK also alters the in-memory cache namespace, so you can switch networks without cross-contaminating cached offsets.