solana/docs/art/validator.bob

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.---------------------------------------.
| Validator |
| |
.--------. | .-------------------. |
| |---->| | |
| Client | | | JSON RPC Service | |
| |<----| | |
`----+---` | `-------------------` |
| | ^ |
| | | .----------------. | .------------------.
| | | | Gossip Service |<-----------| Validators |
| | | `----------------` | | |
| | | ^ | | |
| | | | | | .------------. |
| | .---+---. .----+---. .------------. | | | | |
| | | Bank |<-+ Replay | | ShredFetch |<------+ Upstream | |
| | | Forks | | Stage | | Stage | | | | Validators | |
| | `-------` `--------` `--+---------` | | | | |
| | ^ ^ | | | `------------` |
| | | | v | | |
| | | .--+---------. | | |
| | | | Blockstore | | | |
| | | `------------` | | .------------. |
| | | ^ | | | | |
| | | | | | | Downstream | |
| | .--+--. .-------+---. | | | Validators | |
`-------->| TPU +---->| Broadcast +---------------->| | |
| `-----` | Stage | | | `------------` |
| `-----------` | `------------------`
`---------------------------------------`