[kona-node] Phase 1: Safe Head Sync
Safe head sync tracks the safe of the L2 Chain. The kona-node will only support engine-sync. This means that while the execution engine syncing, Kona’s derivation pipeline is running in the background producing safe blocks over L1 chain data (at tip). Once the execution engine is synced to the sync-start point, the buffered safe L2 blocks will be sent ove…
Safe head sync tracks the safe of the L2 Chain. The kona-node will only support engine-sync. This means that while the execution engine syncing, Kona’s derivation pipeline is running in the background producing safe blocks over L1 chain data (at tip). Once the execution engine is synced to the sync-start point, the buffered safe L2 blocks will be sent over to the execution engine through the engine API. As soon as the buffer is empty, the node is at tip and has completed safe head sync.