Use bank status instead of default hash in state machine (#31699)
This commit is contained in:
parent
4547549a73
commit
1e12a18e01
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@ -58,7 +58,7 @@ impl BankStatus {
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fn bank_hash(&self) -> Option<Hash> {
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match self {
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BankStatus::Frozen(hash) => Some(*hash),
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BankStatus::Dead => Some(Hash::default()),
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BankStatus::Dead => None,
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BankStatus::Unprocessed => None,
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}
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}
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@ -70,6 +70,14 @@ impl BankStatus {
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BankStatus::Unprocessed => false,
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}
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}
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fn can_be_further_replayed(&self) -> bool {
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match self {
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BankStatus::Unprocessed => true,
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BankStatus::Dead => false,
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BankStatus::Frozen(_) => false,
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}
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}
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}
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#[derive(PartialEq, Eq, Debug)]
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@ -93,7 +101,7 @@ impl DeadState {
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gossip_duplicate_confirmed_slots,
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epoch_slots_frozen_slots,
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fork_choice,
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Some(Hash::default()),
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None,
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);
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let is_slot_duplicate = duplicate_slots_tracker.contains(&slot);
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Self::new(cluster_confirmed_hash, is_slot_duplicate)
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@ -279,11 +287,8 @@ pub enum SlotStateUpdate {
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impl SlotStateUpdate {
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fn into_state_changes(self, slot: Slot) -> Vec<ResultingStateChange> {
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let bank_frozen_hash = self.bank_hash();
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if bank_frozen_hash.is_none() && !self.is_popular_pruned() {
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// If the bank hasn't been frozen yet, then there's nothing to do
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// since replay of the slot hasn't finished yet.
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// However if the bank is pruned, then replay will never finish so we still process now
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if self.can_be_further_replayed() {
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// If the bank is still awaiting replay, then there's nothing to do yet
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return vec![];
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}
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@ -303,28 +308,26 @@ impl SlotStateUpdate {
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}
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}
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fn bank_hash(&self) -> Option<Hash> {
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fn can_be_further_replayed(&self) -> bool {
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match self {
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SlotStateUpdate::BankFrozen(bank_frozen_state) => Some(bank_frozen_state.frozen_hash),
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SlotStateUpdate::BankFrozen(_) => false,
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SlotStateUpdate::DuplicateConfirmed(duplicate_confirmed_state) => {
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duplicate_confirmed_state.bank_status.bank_hash()
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duplicate_confirmed_state
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.bank_status
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.can_be_further_replayed()
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}
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SlotStateUpdate::Dead(_) => false,
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SlotStateUpdate::Duplicate(duplicate_state) => {
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duplicate_state.bank_status.can_be_further_replayed()
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}
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SlotStateUpdate::Dead(_) => Some(Hash::default()),
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SlotStateUpdate::Duplicate(duplicate_state) => duplicate_state.bank_status.bank_hash(),
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SlotStateUpdate::EpochSlotsFrozen(epoch_slots_frozen_state) => {
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epoch_slots_frozen_state.bank_status.bank_hash()
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epoch_slots_frozen_state
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.bank_status
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.can_be_further_replayed()
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// If we have the slot pruned then it will never be replayed
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&& !epoch_slots_frozen_state.is_popular_pruned()
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}
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SlotStateUpdate::PopularPrunedFork => None,
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}
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}
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fn is_popular_pruned(&self) -> bool {
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match self {
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SlotStateUpdate::PopularPrunedFork => true,
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SlotStateUpdate::EpochSlotsFrozen(epoch_slots_frozen_state) => {
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epoch_slots_frozen_state.is_popular_pruned()
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}
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_ => false,
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SlotStateUpdate::PopularPrunedFork => false,
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}
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}
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}
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@ -345,36 +348,34 @@ pub enum ResultingStateChange {
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SendAncestorHashesReplayUpdate(AncestorHashesReplayUpdate),
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}
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fn check_duplicate_confirmed_hash_against_frozen_hash(
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/// Checks the duplicate confirmed hash we observed against our local bank status
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///
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/// 1) If we haven't replayed locally do nothing
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/// 2) If our local bank is dead, mark for dump and repair
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/// 3) If our local bank is replayed but mismatch hash, notify fork choice of duplicate and dump and
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/// repair
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/// 4) If our local bank is replayed and matches the `duplicate_confirmed_hash`, notify fork choice
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/// that we have the correct version
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fn check_duplicate_confirmed_hash_against_bank_status(
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state_changes: &mut Vec<ResultingStateChange>,
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slot: Slot,
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duplicate_confirmed_hash: Hash,
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bank_frozen_hash: Hash,
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is_dead: bool,
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bank_status: BankStatus,
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) {
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if duplicate_confirmed_hash != bank_frozen_hash {
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if is_dead {
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match bank_status {
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BankStatus::Unprocessed => {}
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BankStatus::Dead => {
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// If the cluster duplicate confirmed some version of this slot, then
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// there's another version of our dead slot
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warn!(
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"Cluster duplicate confirmed slot {} with hash {}, but we marked slot dead",
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slot, duplicate_confirmed_hash
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);
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} else {
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// The duplicate confirmed slot hash does not match our frozen hash.
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// Modify fork choice rule to exclude our version from being voted
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// on and also repair the correct version
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warn!(
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"Cluster duplicate confirmed slot {} with hash {}, but our version has hash {}",
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slot, duplicate_confirmed_hash, bank_frozen_hash
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);
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}
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state_changes.push(ResultingStateChange::MarkSlotDuplicate(bank_frozen_hash));
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state_changes.push(ResultingStateChange::RepairDuplicateConfirmedVersion(
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duplicate_confirmed_hash,
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));
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} else {
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}
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BankStatus::Frozen(bank_frozen_hash) if duplicate_confirmed_hash == bank_frozen_hash => {
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// If the versions match, then add the slot to the candidate
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// set to account for the case where it was removed earlier
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// by the `on_duplicate_slot()` handler
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@ -382,55 +383,85 @@ fn check_duplicate_confirmed_hash_against_frozen_hash(
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bank_frozen_hash,
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));
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}
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BankStatus::Frozen(bank_frozen_hash) => {
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// The duplicate confirmed slot hash does not match our frozen hash.
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// Modify fork choice rule to exclude our version from being voted
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// on and also repair the correct version
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warn!(
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"Cluster duplicate confirmed slot {} with hash {}, but our version has hash {}",
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slot, duplicate_confirmed_hash, bank_frozen_hash
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);
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state_changes.push(ResultingStateChange::MarkSlotDuplicate(bank_frozen_hash));
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state_changes.push(ResultingStateChange::RepairDuplicateConfirmedVersion(
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duplicate_confirmed_hash,
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));
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}
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}
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}
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fn check_epoch_slots_hash_against_frozen_hash(
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/// Checks the epoch slots hash we observed against our local bank status
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/// Note epoch slots here does not refer to gossip but responses from ancestor_hashes_service
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///
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/// * If `epoch_slots_frozen_hash` matches our local frozen hash do nothing
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/// * If `slot` has not yet been replayed and is not pruned fail, as we should not be checking
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/// against this bank until it is replayed.
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///
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/// Dump and repair the slot if any of the following occur
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/// * Our version is dead
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/// * Our version is popular pruned and unplayed
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/// * If `epoch_slots_frozen_hash` does not match our local frozen hash (additionally notify fork
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/// choice of duplicate `slot`)
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fn check_epoch_slots_hash_against_bank_status(
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state_changes: &mut Vec<ResultingStateChange>,
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slot: Slot,
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epoch_slots_frozen_hash: Hash,
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bank_frozen_hash: Hash,
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is_dead: bool,
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bank_status: BankStatus,
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is_popular_pruned: bool,
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) {
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if epoch_slots_frozen_hash != bank_frozen_hash {
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if is_dead {
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// If the cluster duplicate confirmed some version of this slot, then
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// there's another version of our dead slot
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match bank_status {
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BankStatus::Frozen(bank_frozen_hash) if bank_frozen_hash == epoch_slots_frozen_hash => {
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// Matches, nothing to do
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return;
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}
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BankStatus::Frozen(bank_frozen_hash) => {
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// The epoch slots hash does not match our frozen hash.
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warn!(
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"EpochSlots sample returned slot {} with hash {}, but our version
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has hash {:?}",
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slot, epoch_slots_frozen_hash, bank_frozen_hash
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);
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if !is_popular_pruned {
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// If the slot is not already pruned notify fork choice to mark as invalid
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state_changes.push(ResultingStateChange::MarkSlotDuplicate(bank_frozen_hash));
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}
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}
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BankStatus::Dead => {
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// Cluster sample found a hash for our dead slot, we must have the wrong version
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warn!(
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"EpochSlots sample returned slot {} with hash {}, but we marked slot dead",
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slot, epoch_slots_frozen_hash
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);
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} else if is_popular_pruned {
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}
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BankStatus::Unprocessed => {
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// If the bank was not popular pruned, we would never have made it here, as the bank is
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// yet to be replayed
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assert!(is_popular_pruned);
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// The cluster sample found the troublesome slot which caused this fork to be pruned
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warn!(
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"EpochSlots sample returned slot {slot} with hash {epoch_slots_frozen_hash}, but we
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have pruned it due to incorrect ancestry"
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);
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} else {
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// The duplicate confirmed slot hash does not match our frozen hash.
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// Modify fork choice rule to exclude our version from being voted
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// on and also repair the correct version
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warn!(
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"EpochSlots sample returned slot {} with hash {}, but our version
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has hash {}",
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slot, epoch_slots_frozen_hash, bank_frozen_hash
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);
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}
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if !is_popular_pruned {
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// If the slot is already pruned, it will already be pruned from fork choice so no
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// reason to mark as duplicate
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state_changes.push(ResultingStateChange::MarkSlotDuplicate(bank_frozen_hash));
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}
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state_changes.push(ResultingStateChange::RepairDuplicateConfirmedVersion(
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epoch_slots_frozen_hash,
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));
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}
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}
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fn on_dead_slot(slot: Slot, dead_state: DeadState) -> Vec<ResultingStateChange> {
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let DeadState {
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cluster_confirmed_hash,
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is_slot_duplicate,
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..
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} = dead_state;
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let mut state_changes = vec![];
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@ -439,31 +470,25 @@ fn on_dead_slot(slot: Slot, dead_state: DeadState) -> Vec<ResultingStateChange>
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ClusterConfirmedHash::DuplicateConfirmed(duplicate_confirmed_hash) => {
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// If the cluster duplicate_confirmed some version of this slot, then
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// check if our version agrees with the cluster,
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let bank_hash = Hash::default();
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let is_dead = true;
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state_changes.push(ResultingStateChange::SendAncestorHashesReplayUpdate(
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AncestorHashesReplayUpdate::DeadDuplicateConfirmed(slot),
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));
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check_duplicate_confirmed_hash_against_frozen_hash(
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check_duplicate_confirmed_hash_against_bank_status(
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&mut state_changes,
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slot,
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duplicate_confirmed_hash,
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bank_hash,
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is_dead,
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BankStatus::Dead,
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);
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}
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ClusterConfirmedHash::EpochSlotsFrozen(epoch_slots_frozen_hash) => {
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// Lower priority than having seen an actual duplicate confirmed hash in the
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// match arm above.
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let bank_hash = Hash::default();
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let is_dead = true;
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let is_popular_pruned = false;
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check_epoch_slots_hash_against_frozen_hash(
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check_epoch_slots_hash_against_bank_status(
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&mut state_changes,
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slot,
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epoch_slots_frozen_hash,
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bank_hash,
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is_dead,
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BankStatus::Dead,
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is_popular_pruned,
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);
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}
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@ -472,9 +497,6 @@ fn on_dead_slot(slot: Slot, dead_state: DeadState) -> Vec<ResultingStateChange>
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state_changes.push(ResultingStateChange::SendAncestorHashesReplayUpdate(
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AncestorHashesReplayUpdate::Dead(slot),
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));
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if is_slot_duplicate {
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state_changes.push(ResultingStateChange::MarkSlotDuplicate(Hash::default()));
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}
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}
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state_changes
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@ -492,34 +514,29 @@ fn on_frozen_slot(slot: Slot, bank_frozen_state: BankFrozenState) -> Vec<Resulti
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ClusterConfirmedHash::DuplicateConfirmed(duplicate_confirmed_hash) => {
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// If the cluster duplicate_confirmed some version of this slot, then
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// check if our version agrees with the cluster,
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let is_dead = false;
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check_duplicate_confirmed_hash_against_frozen_hash(
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check_duplicate_confirmed_hash_against_bank_status(
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&mut state_changes,
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slot,
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duplicate_confirmed_hash,
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frozen_hash,
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is_dead,
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BankStatus::Frozen(frozen_hash),
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);
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}
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ClusterConfirmedHash::EpochSlotsFrozen(epoch_slots_frozen_hash) => {
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// Lower priority than having seen an actual duplicate confirmed hash in the
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// match arm above.
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let is_dead = false;
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let is_popular_pruned = false;
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check_epoch_slots_hash_against_frozen_hash(
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check_epoch_slots_hash_against_bank_status(
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&mut state_changes,
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slot,
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epoch_slots_frozen_hash,
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frozen_hash,
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is_dead,
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BankStatus::Frozen(frozen_hash),
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is_popular_pruned,
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);
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}
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}
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}
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} else if is_slot_duplicate {
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// If `cluster_confirmed_hash` is Some above we should have already pushed a
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// `MarkSlotDuplicate` state change
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else if is_slot_duplicate {
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state_changes.push(ResultingStateChange::MarkSlotDuplicate(frozen_hash));
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}
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@ -543,21 +560,17 @@ fn on_duplicate_confirmed(
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}
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}
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let bank_hash = bank_status.bank_hash().expect("bank hash must exist");
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let mut state_changes = vec![];
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let is_dead = bank_status.is_dead();
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if is_dead {
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if bank_status.is_dead() {
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state_changes.push(ResultingStateChange::SendAncestorHashesReplayUpdate(
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AncestorHashesReplayUpdate::DeadDuplicateConfirmed(slot),
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));
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}
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check_duplicate_confirmed_hash_against_frozen_hash(
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check_duplicate_confirmed_hash_against_bank_status(
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&mut state_changes,
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slot,
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duplicate_confirmed_hash,
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bank_hash,
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is_dead,
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bank_status,
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);
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state_changes
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@ -577,8 +590,6 @@ fn on_duplicate(duplicate_state: DuplicateState) -> Vec<ResultingStateChange> {
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}
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}
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let bank_hash = bank_status.bank_hash().expect("bank hash must exist");
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// If the cluster duplicate_confirmed some version of this slot
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// then either the `SlotStateUpdate::DuplicateConfirmed`, `SlotStateUpdate::BankFrozen`,
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// or `SlotStateUpdate::Dead` state transitions will take care of marking the fork as
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@ -586,8 +597,10 @@ fn on_duplicate(duplicate_state: DuplicateState) -> Vec<ResultingStateChange> {
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if duplicate_confirmed_hash.is_none() {
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// If we have not yet seen any version of the slot duplicate confirmed, then mark
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// the slot as duplicate
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if let Some(bank_hash) = bank_status.bank_hash() {
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return vec![ResultingStateChange::MarkSlotDuplicate(bank_hash)];
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}
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}
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vec![]
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}
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@ -642,15 +655,12 @@ fn on_epoch_slots_frozen(
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}
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}
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let frozen_hash = bank_status.bank_hash().unwrap_or_default();
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let is_dead = bank_status.is_dead();
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let mut state_changes = vec![];
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check_epoch_slots_hash_against_frozen_hash(
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check_epoch_slots_hash_against_bank_status(
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&mut state_changes,
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slot,
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epoch_slots_frozen_hash,
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frozen_hash,
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is_dead,
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bank_status,
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is_popular_pruned,
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);
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@ -666,6 +676,14 @@ fn on_popular_pruned_fork(slot: Slot) -> Vec<ResultingStateChange> {
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)]
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}
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/// Finds the cluster confirmed hash
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///
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/// 1) If we have a frozen hash, check if it's been duplicate confirmed by cluster
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/// in turbine or gossip
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/// 2) Otherwise poll `epoch_slots_frozen_slots` to see if we have a hash
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///
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/// Note `epoch_slots_frozen_slots` is not populated from `EpochSlots` in gossip but actually
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/// aggregated through hashes sent in response to requests from `ancestor_hashes_service`
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fn get_cluster_confirmed_hash_from_state(
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slot: Slot,
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gossip_duplicate_confirmed_slots: &GossipDuplicateConfirmedSlots,
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|
@ -723,6 +741,13 @@ fn get_duplicate_confirmed_hash_from_state(
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)
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}
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/// Finds the duplicate confirmed hash for a slot.
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///
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/// 1) If `is_local_replay_duplicate_confirmed`, return Some(local frozen hash)
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/// 2) If we have a `gossip_duplicate_confirmed_hash`, return Some(gossip_hash)
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/// 3) Else return None
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///
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/// Assumes that if `is_local_replay_duplicate_confirmed`, `bank_frozen_hash` is not None
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fn get_duplicate_confirmed_hash(
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slot: Slot,
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gossip_duplicate_confirmed_hash: Option<Hash>,
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|
@ -734,7 +759,6 @@ fn get_duplicate_confirmed_hash(
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// descendants with votes for this slot, hence this slot must be
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// frozen.
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let bank_frozen_hash = bank_frozen_hash.unwrap();
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assert!(bank_frozen_hash != Hash::default());
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Some(bank_frozen_hash)
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} else {
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None
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|
@ -1133,7 +1157,6 @@ mod test {
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SlotStateUpdate::DuplicateConfirmed(duplicate_confirmed_state),
|
||||
vec![
|
||||
ResultingStateChange::SendAncestorHashesReplayUpdate(AncestorHashesReplayUpdate::DeadDuplicateConfirmed(10)),
|
||||
ResultingStateChange::MarkSlotDuplicate(Hash::default()),
|
||||
ResultingStateChange::RepairDuplicateConfirmedVersion(duplicate_confirmed_hash)],
|
||||
)
|
||||
},
|
||||
|
@ -1189,7 +1212,8 @@ mod test {
|
|||
(
|
||||
SlotStateUpdate::Dead(dead_state),
|
||||
vec![
|
||||
ResultingStateChange::SendAncestorHashesReplayUpdate(AncestorHashesReplayUpdate::Dead(10)), ResultingStateChange::MarkSlotDuplicate(Hash::default())],
|
||||
ResultingStateChange::SendAncestorHashesReplayUpdate(AncestorHashesReplayUpdate::Dead(10))
|
||||
],
|
||||
)
|
||||
},
|
||||
dead_state_update_2: {
|
||||
|
@ -1204,7 +1228,6 @@ mod test {
|
|||
SlotStateUpdate::Dead(dead_state),
|
||||
vec![
|
||||
ResultingStateChange::SendAncestorHashesReplayUpdate(AncestorHashesReplayUpdate::DeadDuplicateConfirmed(10)),
|
||||
ResultingStateChange::MarkSlotDuplicate(Hash::default()),
|
||||
ResultingStateChange::RepairDuplicateConfirmedVersion(duplicate_confirmed_hash)],
|
||||
)
|
||||
},
|
||||
|
@ -1219,7 +1242,6 @@ mod test {
|
|||
(
|
||||
SlotStateUpdate::Dead(dead_state),
|
||||
vec![
|
||||
ResultingStateChange::MarkSlotDuplicate(Hash::default()),
|
||||
ResultingStateChange::RepairDuplicateConfirmedVersion(epoch_slots_frozen_hash)],
|
||||
)
|
||||
},
|
||||
|
@ -1236,7 +1258,6 @@ mod test {
|
|||
vec![
|
||||
|
||||
ResultingStateChange::SendAncestorHashesReplayUpdate(AncestorHashesReplayUpdate::DeadDuplicateConfirmed(10)),
|
||||
ResultingStateChange::MarkSlotDuplicate(Hash::default()),
|
||||
ResultingStateChange::RepairDuplicateConfirmedVersion(duplicate_confirmed_hash)],
|
||||
)
|
||||
},
|
||||
|
@ -1250,9 +1271,7 @@ mod test {
|
|||
);
|
||||
(
|
||||
SlotStateUpdate::Dead(dead_state),
|
||||
vec![
|
||||
ResultingStateChange::MarkSlotDuplicate(Hash::default()),
|
||||
ResultingStateChange::RepairDuplicateConfirmedVersion(epoch_slots_frozen_hash)],
|
||||
vec![ResultingStateChange::RepairDuplicateConfirmedVersion(epoch_slots_frozen_hash)],
|
||||
)
|
||||
},
|
||||
duplicate_state_update_0: {
|
||||
|
@ -1270,7 +1289,7 @@ mod test {
|
|||
let duplicate_state = DuplicateState::new(duplicate_confirmed_hash, bank_status);
|
||||
(
|
||||
SlotStateUpdate::Duplicate(duplicate_state),
|
||||
vec![ResultingStateChange::MarkSlotDuplicate(Hash::default())],
|
||||
Vec::<ResultingStateChange>::new(),
|
||||
)
|
||||
},
|
||||
duplicate_state_update_2: {
|
||||
|
@ -1357,9 +1376,7 @@ mod test {
|
|||
let epoch_slots_frozen_state = EpochSlotsFrozenState::new(epoch_slots_frozen_hash, duplicate_confirmed_hash, bank_status, false);
|
||||
(
|
||||
SlotStateUpdate::EpochSlotsFrozen(epoch_slots_frozen_state),
|
||||
vec![
|
||||
ResultingStateChange::MarkSlotDuplicate(Hash::default()),
|
||||
ResultingStateChange::RepairDuplicateConfirmedVersion(epoch_slots_frozen_hash)],
|
||||
vec![ResultingStateChange::RepairDuplicateConfirmedVersion(epoch_slots_frozen_hash)],
|
||||
)
|
||||
},
|
||||
epoch_slots_frozen_state_update_4: {
|
||||
|
|
Loading…
Reference in New Issue