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Avoid building caches during block replay (#783)

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Also, make the ExitCache safe.
This commit is contained in:
Michael Sproul
2020-01-09 11:43:11 +11:00
committed by GitHub
parent da95a73605
commit d9e9c17d3b
6 changed files with 69 additions and 27 deletions
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7
beacon_node/store/src/hot_cold_store.rs
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@@ -498,17 +498,14 @@ impl<E: EthSpec> HotColdDB<E> {
/// Replay `blocks` on top of `state` until `target_slot` is reached.
///
/// Will skip slots as necessary.
/// Will skip slots as necessary. The returned state is not guaranteed
/// to have any caches built, beyond those immediately required by block processing.
fn replay_blocks(
&self,
mut state: BeaconState<E>,
blocks: Vec<BeaconBlock<E>>,
target_slot: Slot,
) -> Result<BeaconState<E>, Error> {
state
.build_all_caches(&self.spec)
.map_err(HotColdDBError::BlockReplayBeaconError)?;
let state_root_from_prev_block = |i: usize, state: &BeaconState<E>| {
if i > 0 {
let prev_block = &blocks[i - 1];