History

tersec aea7a0c8b8 remove TTD monitoring (#4486 )		2023-01-18 16:01:49 +02:00
..
README.md	automated update from v1.3.0-rc.0 to v1.3.0-rc.1 consensus spec URLs (#4517 )	2023-01-17 16:10:52 +00:00
batch_validation.nim	spec: Option -> Opt (#4488 )	2023-01-11 12:29:21 +00:00
block_processor.nim	remove TTD monitoring (#4486 )	2023-01-18 16:01:49 +02:00
eth2_processor.nim	Refactor block/blobs types (#4491 )	2023-01-16 16:26:48 +00:00
gossip_validation.nim	automated update from v1.3.0-rc.0 to v1.3.0-rc.1 consensus spec URLs (#4517 )	2023-01-17 16:10:52 +00:00
light_client_processor.nim	use `ForkedLightClientStore` internally (#4512 )	2023-01-16 16:53:45 +01:00
optimistic_processor.nim	rm optimistic candidate block check from LC (#4131 )	2022-09-17 00:42:19 +00:00

Gossip Processing

This folder holds a collection of modules to:

validate raw gossip data before
- rebroadcasting it (potentially aggregated)
- sending it to one of the consensus object pools

Validation

Gossip validation is different from consensus verification in particular for blocks.

There are multiple consumers of validated consensus objects:

a ValidationResult.Accept output triggers rebroadcasting in libp2p
- We jump into method validate(PubSub, Message) in libp2p/protocols/pubsub/pubsub.nim
- which was called by rpcHandler(GossipSub, PubSubPeer, RPCMsg)
a blockValidator message enqueues the validated object to the processing queue in block_processor
- blockQueue: AsyncQueue[BlockEntry] (shared with request_manager and sync_manager)
- This queue is then regularly processed to be made available to the consensus object pools.
a xyzValidator message adds the validated object to a pool in eth2_processor
- Attestations (unaggregated and aggregated) get collected into batches.
- Once a threshold is exceeded or after a timeout, they get validated together using BatchCrypto.

As the first line of defense in Nimbus, modules must be able to handle bursts of data that may come: