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Ignore blocks that skip a large distance from their parent (#1530)

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## Proposed Changes

To mitigate the impact of minority forks on RAM and disk usage, this change rejects blocks whose parent lies more than 320 slots (10 epochs, ~1 hour) in the past. The behaviour is configurable via `lighthouse bn --max-skip-slots N`, and can be turned off entirely using `--max-skip-slots none`.

Co-authored-by: Paul Hauner <paul@paulhauner.com>
This commit is contained in:
Michael Sproul
2020-08-17 10:54:58 +00:00
parent a58aa6ee55
commit 719a69aee0
13 changed files with 131 additions and 4 deletions
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2
beacon_node/beacon_chain/src/lib.rs
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@@ -8,6 +8,7 @@ mod beacon_fork_choice_store;
mod beacon_snapshot;
mod block_verification;
pub mod builder;
pub mod chain_config;
mod errors;
pub mod eth1_chain;
pub mod events;
@@ -32,6 +33,7 @@ pub use self::beacon_chain::{
ForkChoiceError, StateSkipConfig,
};
pub use self::beacon_snapshot::BeaconSnapshot;
pub use self::chain_config::ChainConfig;
pub use self::errors::{BeaconChainError, BlockProductionError};
pub use attestation_verification::Error as AttestationError;
pub use beacon_fork_choice_store::{BeaconForkChoiceStore, Error as ForkChoiceStoreError};