Module neighbor_sync 

Neighbor replication sync (Section 6.2).

Round-robin cycle management: snapshot close neighbors, iterate through them in batches of NEIGHBOR_SYNC_PEER_COUNT, exchanging hint sets.

Functions

build_paid_hints_for_peer

Build paid hints for a specific peer.

build_replica_hints_for_peer

Build replica hints for a specific peer.

handle_sync_failure

Handle a failed sync attempt: remove peer from snapshot and try to fill the vacated slot.

handle_sync_request

Handle incoming sync request from a peer.

record_successful_sync

Record a successful sync with a peer.

select_sync_batch

Select the next batch of peers for sync from the current cycle.

snapshot_close_neighbors

Take a fresh snapshot of close neighbors for a new round-robin cycle.

sync_with_peer

Execute a sync session with a single peer.