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Backfill peer attribution (#7762)

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Partly addresses https://github.com/sigp/lighthouse/issues/7744


  Implement similar peer sync attribution like in #7733 for backfill sync.
This commit is contained in:
Pawan Dhananjay
2025-08-11 19:11:56 -07:00
committed by GitHub
parent 122f16776f
commit 80ba0b169b
7 changed files with 620 additions and 144 deletions
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40
beacon_node/lighthouse_network/src/peer_manager/peerdb.rs
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@@ -253,15 +253,17 @@ impl<E: EthSpec> PeerDB<E> {
///
/// If `earliest_available_slot` info is not available, then return peer anyway assuming it has the
/// required data.
///
/// If `allowed_peers` is `Some`, then filters for the epoch only for those peers.
pub fn synced_peers_for_epoch<'a>(
&'a self,
epoch: Epoch,
allowed_peers: &'a HashSet<PeerId>,
allowed_peers: Option<&'a HashSet<PeerId>>,
) -> impl Iterator<Item = &'a PeerId> {
self.peers
.iter()
.filter(move |(peer_id, info)| {
allowed_peers.contains(peer_id)
allowed_peers.is_none_or(|allowed| allowed.contains(peer_id))
&& info.is_connected()
&& match info.sync_status() {
SyncStatus::Synced { info } => {
@@ -270,7 +272,9 @@ impl<E: EthSpec> PeerDB<E> {
SyncStatus::Advanced { info } => {
info.has_slot(epoch.end_slot(E::slots_per_epoch()))
}
_ => false,
SyncStatus::IrrelevantPeer
| SyncStatus::Behind { .. }
| SyncStatus::Unknown => false,
}
})
.map(|(peer_id, _)| peer_id)
@@ -320,22 +324,36 @@ impl<E: EthSpec> PeerDB<E> {
}
/// Returns an iterator of all peers that are supposed to be custodying
/// the given subnet id that also belong to `allowed_peers`.
pub fn good_range_sync_custody_subnet_peer<'a>(
&'a self,
/// the given subnet id.
pub fn good_range_sync_custody_subnet_peers(
&self,
subnet: DataColumnSubnetId,
allowed_peers: &'a HashSet<PeerId>,
) -> impl Iterator<Item = &'a PeerId> {
) -> impl Iterator<Item = &PeerId> {
self.peers
.iter()
.filter(move |(peer_id, info)| {
.filter(move |(_, info)| {
// The custody_subnets hashset can be populated via enr or metadata
let is_custody_subnet_peer = info.is_assigned_to_custody_subnet(&subnet);
allowed_peers.contains(peer_id) && info.is_connected() && is_custody_subnet_peer
info.is_connected() && info.is_assigned_to_custody_subnet(&subnet)
})
.map(|(peer_id, _)| peer_id)
}
/// Returns `true` if the given peer is assigned to the given subnet.
/// else returns `false`
///
/// Returns `false` if peer doesn't exist in peerdb.
pub fn is_good_range_sync_custody_subnet_peer(
&self,
subnet: DataColumnSubnetId,
peer: &PeerId,
) -> bool {
if let Some(info) = self.peers.get(peer) {
info.is_connected() && info.is_assigned_to_custody_subnet(&subnet)
} else {
false
}
}
/// Gives the ids of all known disconnected peers.
pub fn disconnected_peers(&self) -> impl Iterator<Item = &PeerId> {
self.peers