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4f7a8cf79d
* register vc duties with subnet tracker * fix activation logging during startup * cache slot signature to avoid duplicate signature work * schedule aggregation duties one slot at a time to avoid CPU spike at each epoch * lower aggregation subnet pre-subscription time to 4 slots (lowers bandwidth and CPU usage) * update stability subnets in ENR on startup * log gossip state * perform gossip subscriptions just before the next slot starts * document stuff * add random include * don't overwrite subscription state when not subscribed * log target gossip state * updating gossip status once is enough * add test * remove syncQueueLen - this one is not updated at the end of the sync and may cause gossip to disconnect itself completely - use a simple head distance instead * fix gossip disconnection - if in hysteresis, node.gossipState will be set to disabled even though we don't disable topic subscriptions * fix extra duty registration call
Networking
This folders hold a collection of modules to:
- configure the Eth2 P2P network
- discover, connect, and maintain quality Eth2 peers
Data received is handed other to the ../gossip_processing modules for validation.
Security concerns
- Collusion: part of the peer selection must be kept random. This avoids peers bringing all their friends and colluding against a beacon node.
- Denial-of-service: The beacon node must provide ways to handle burst of data that may come:
- from malicious nodes trying to DOS us
- from long periods of non-finality, creating lots of forks, attestations, forks