parent
12d9b42188
commit
1f16d8fe4d
@ -10,7 +10,10 @@ use beacon_chain::AttestationProcessingOutcome;
|
||||
use rand::Rng;
|
||||
use sloggers::{null::NullLoggerBuilder, Build};
|
||||
use std::sync::Arc;
|
||||
use store::{DiskStore, Store, StoreConfig};
|
||||
use store::{
|
||||
iter::{BlockRootsIterator, StateRootsIterator},
|
||||
DiskStore, Store, StoreConfig,
|
||||
};
|
||||
use tempfile::{tempdir, TempDir};
|
||||
use tree_hash::TreeHash;
|
||||
use types::test_utils::{SeedableRng, XorShiftRng};
|
||||
@ -320,6 +323,102 @@ fn epoch_boundary_state_attestation_processing() {
|
||||
assert!(checked_pre_fin);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn delete_blocks_and_states() {
|
||||
let db_path = tempdir().unwrap();
|
||||
let store = get_store(&db_path);
|
||||
let harness = get_harness(store.clone(), VALIDATOR_COUNT);
|
||||
|
||||
let unforked_blocks = 4 * E::slots_per_epoch();
|
||||
|
||||
// Finalize an initial portion of the chain.
|
||||
harness.extend_chain(
|
||||
unforked_blocks as usize,
|
||||
BlockStrategy::OnCanonicalHead,
|
||||
AttestationStrategy::AllValidators,
|
||||
);
|
||||
|
||||
// Create a fork post-finalization.
|
||||
let two_thirds = (VALIDATOR_COUNT / 3) * 2;
|
||||
let honest_validators: Vec<usize> = (0..two_thirds).collect();
|
||||
let faulty_validators: Vec<usize> = (two_thirds..VALIDATOR_COUNT).collect();
|
||||
|
||||
// NOTE: should remove this -1 and/or write a similar test once #845 is resolved
|
||||
// https://github.com/sigp/lighthouse/issues/845
|
||||
let fork_blocks = 2 * E::slots_per_epoch() - 1;
|
||||
|
||||
let (honest_head, faulty_head) = harness.generate_two_forks_by_skipping_a_block(
|
||||
&honest_validators,
|
||||
&faulty_validators,
|
||||
fork_blocks as usize,
|
||||
fork_blocks as usize,
|
||||
);
|
||||
|
||||
assert!(honest_head != faulty_head, "forks should be distinct");
|
||||
let head_info = harness.chain.head_info().expect("should get head");
|
||||
assert_eq!(head_info.slot, unforked_blocks + fork_blocks);
|
||||
|
||||
assert_eq!(
|
||||
head_info.block_root, honest_head,
|
||||
"the honest chain should be the canonical chain",
|
||||
);
|
||||
|
||||
let faulty_head_block = store
|
||||
.get_block(&faulty_head)
|
||||
.expect("no errors")
|
||||
.expect("faulty head block exists");
|
||||
|
||||
let faulty_head_state = store
|
||||
.get_state(
|
||||
&faulty_head_block.state_root(),
|
||||
Some(faulty_head_block.slot()),
|
||||
)
|
||||
.expect("no db error")
|
||||
.expect("faulty head state exists");
|
||||
|
||||
let states_to_delete = StateRootsIterator::new(store.clone(), &faulty_head_state)
|
||||
.take_while(|(_, slot)| *slot > unforked_blocks)
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
// Delete faulty fork
|
||||
// Attempting to load those states should find them unavailable
|
||||
for (state_root, slot) in &states_to_delete {
|
||||
assert_eq!(store.delete_state(state_root, *slot), Ok(()));
|
||||
assert_eq!(store.get_state(state_root, Some(*slot)), Ok(None));
|
||||
}
|
||||
|
||||
// Double-deleting should also be OK (deleting non-existent things is fine)
|
||||
for (state_root, slot) in &states_to_delete {
|
||||
assert_eq!(store.delete_state(state_root, *slot), Ok(()));
|
||||
}
|
||||
|
||||
// Deleting the blocks from the fork should remove them completely
|
||||
let blocks_to_delete = BlockRootsIterator::new(store.clone(), &faulty_head_state)
|
||||
// Extra +1 here accounts for the skipped slot that started this fork
|
||||
.take_while(|(_, slot)| *slot > unforked_blocks + 1)
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
for (block_root, _) in blocks_to_delete {
|
||||
assert_eq!(store.delete_block(&block_root), Ok(()));
|
||||
assert_eq!(store.get_block(&block_root), Ok(None));
|
||||
}
|
||||
|
||||
// Deleting frozen states should do nothing
|
||||
let split_slot = store.get_split_slot();
|
||||
let finalized_states = harness
|
||||
.chain
|
||||
.rev_iter_state_roots()
|
||||
.expect("rev iter ok")
|
||||
.filter(|(_, slot)| *slot < split_slot);
|
||||
|
||||
for (state_root, slot) in finalized_states {
|
||||
assert_eq!(store.delete_state(&state_root, slot), Ok(()));
|
||||
}
|
||||
|
||||
// After all that, the chain dump should still be OK
|
||||
check_chain_dump(&harness, unforked_blocks + fork_blocks + 1);
|
||||
}
|
||||
|
||||
/// Check that the head state's slot matches `expected_slot`.
|
||||
fn check_slot(harness: &TestHarness, expected_slot: u64) {
|
||||
let state = &harness.chain.head().expect("should get head").beacon_state;
|
||||
|
@ -138,6 +138,12 @@ impl<E: EthSpec> Store<E> for HotColdDB<E> {
|
||||
}
|
||||
}
|
||||
|
||||
/// Delete a block from the store and the block cache.
|
||||
fn delete_block(&self, block_root: &Hash256) -> Result<(), Error> {
|
||||
self.block_cache.lock().pop(block_root);
|
||||
self.delete::<SignedBeaconBlock<E>>(block_root)
|
||||
}
|
||||
|
||||
/// Store a state in the store.
|
||||
fn put_state(&self, state_root: &Hash256, state: BeaconState<E>) -> Result<(), Error> {
|
||||
if state.slot < self.get_split_slot() {
|
||||
@ -181,6 +187,29 @@ impl<E: EthSpec> Store<E> for HotColdDB<E> {
|
||||
}
|
||||
}
|
||||
|
||||
/// Delete a state, ensuring it is removed from the LRU cache, as well as from on-disk.
|
||||
///
|
||||
/// It is assumed that all states being deleted reside in the hot DB, even if their slot is less
|
||||
/// than the split point. You shouldn't delete states from the finalized portion of the chain
|
||||
/// (which are frozen, and won't be deleted), or valid descendents of the finalized checkpoint
|
||||
/// (which will be deleted by this function but shouldn't be).
|
||||
fn delete_state(&self, state_root: &Hash256, slot: Slot) -> Result<(), Error> {
|
||||
// Delete the state summary.
|
||||
self.hot_db
|
||||
.key_delete(DBColumn::BeaconStateSummary.into(), state_root.as_bytes())?;
|
||||
|
||||
// Delete the full state if it lies on an epoch boundary.
|
||||
if slot % E::slots_per_epoch() == 0 {
|
||||
self.hot_db
|
||||
.key_delete(DBColumn::BeaconState.into(), state_root.as_bytes())?;
|
||||
}
|
||||
|
||||
// Delete from the cache.
|
||||
self.state_cache.lock().pop(state_root);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Advance the split point of the store, moving new finalized states to the freezer.
|
||||
fn freeze_to_state(
|
||||
store: Arc<Self>,
|
||||
@ -232,10 +261,7 @@ impl<E: EthSpec> Store<E> for HotColdDB<E> {
|
||||
store.store_cold_state_slot(&state_root, slot)?;
|
||||
|
||||
// Delete the old summary, and the full state if we lie on an epoch boundary.
|
||||
to_delete.push((DBColumn::BeaconStateSummary, state_root));
|
||||
if slot % E::slots_per_epoch() == 0 {
|
||||
to_delete.push((DBColumn::BeaconState, state_root));
|
||||
}
|
||||
to_delete.push((state_root, slot));
|
||||
}
|
||||
|
||||
// 2. Update the split slot
|
||||
@ -246,10 +272,8 @@ impl<E: EthSpec> Store<E> for HotColdDB<E> {
|
||||
store.store_split()?;
|
||||
|
||||
// 3. Delete from the hot DB
|
||||
for (column, state_root) in to_delete {
|
||||
store
|
||||
.hot_db
|
||||
.key_delete(column.into(), state_root.as_bytes())?;
|
||||
for (state_root, slot) in to_delete {
|
||||
store.delete_state(&state_root, slot)?;
|
||||
}
|
||||
|
||||
debug!(
|
||||
|
@ -91,6 +91,11 @@ pub trait Store<E: EthSpec>: Sync + Send + Sized + 'static {
|
||||
self.get(block_root)
|
||||
}
|
||||
|
||||
/// Delete a block from the store.
|
||||
fn delete_block(&self, block_root: &Hash256) -> Result<(), Error> {
|
||||
self.delete::<SignedBeaconBlock<E>>(block_root)
|
||||
}
|
||||
|
||||
/// Store a state in the store.
|
||||
fn put_state(&self, state_root: &Hash256, state: BeaconState<E>) -> Result<(), Error>;
|
||||
|
||||
@ -123,6 +128,11 @@ pub trait Store<E: EthSpec>: Sync + Send + Sized + 'static {
|
||||
self.get_state(state_root, slot)
|
||||
}
|
||||
|
||||
/// Delete a state from the store.
|
||||
fn delete_state(&self, state_root: &Hash256, _slot: Slot) -> Result<(), Error> {
|
||||
self.key_delete(DBColumn::BeaconState.into(), state_root.as_bytes())
|
||||
}
|
||||
|
||||
/// (Optionally) Move all data before the frozen slot to the freezer database.
|
||||
fn freeze_to_state(
|
||||
_store: Arc<Self>,
|
||||
|
Loading…
Reference in New Issue
Block a user