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docs: update genservers in docs #1146

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docs: update genservers in docs #1146

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21 changes: 15 additions & 6 deletions docs/architecture.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,21 @@

## Processes summary

Some GenServers to be deleted soon:

Easy difficulty:
- Metadata: can be replaced with db calls entirely.
- BeaconChain: can be deleted and its calls replaced by ForkChoice db calls.
- Peerbook: can be maintained in the db. Doesn't need to be a pid to be a handler.
- IncomingRequests.Receiver: Genserver that receives incoming requests and dispatches them to a handler task. We should handle the tasks directly in port. The genserver is "needed" because of the set_handler primitive.

Medium difficulty:
- Validators: more complicated. May be replaced by libraries that react on slots. Need to be more thought. The most complicated part is independent failure.
- ExecutionChain: the tricky part is the deposit tree, but the rest can be calculated after state transition succeeds.

Not to be deleted soon:
- SyncBlocks. It's an init task. It needs to be revisited only to see if it holds well against restarts.

### Supervision tree

This is our complete supervision tree.
Expand All @@ -23,16 +38,10 @@ Application --> BeaconNode
Application --> BeaconApi.Endpoint

BeaconNode -->|genesis_time,<br>genesis_validators_root,<br> fork_choice_data, time| BeaconChain
BeaconNode -->|store, head_slot, time| ForkChoice
BeaconNode -->|listen_addr, <br>enable_discovery, <br> discovery_addr, <br>bootnodes| P2P.Libp2pPort
BeaconNode --> P2P.Peerbook
BeaconNode --> P2P.IncomingRequests
BeaconNode --> PendingBlocks
BeaconNode --> SyncBlocks
BeaconNode --> Attestation
BeaconNode --> BeaconBlock
BeaconNode --> BlobSideCar
BeaconNode --> OperationsCollector
BeaconNode -->|slot, head_root| ValidatorManager
BeaconNode -->|genesis_time, snapshot, votes| ExecutionChain
ValidatorManager --> ValidatorN
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