gnosis/lighthouse
1
0
Fork 0
mirror of https://github.com/sigp/lighthouse.git synced 2026-04-18 21:38:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove equivocating validators from fork choice (#3371)

Browse Source 
## Issue Addressed

Closes https://github.com/sigp/lighthouse/issues/3241
Closes https://github.com/sigp/lighthouse/issues/3242

## Proposed Changes

* [x] Implement logic to remove equivocating validators from fork choice per https://github.com/ethereum/consensus-specs/pull/2845
* [x] Update tests to v1.2.0-rc.1. The new test which exercises `equivocating_indices` is passing.
* [x] Pull in some SSZ abstractions from the `tree-states` branch that make implementing Vec-compatible encoding for types like `BTreeSet` and `BTreeMap`.
* [x] Implement schema upgrades and downgrades for the database (new schema version is V11).
* [x] Apply attester slashings from blocks to fork choice

## Additional Info

* This PR doesn't need the `BTreeMap` impl, but `tree-states` does, and I don't think there's any harm in keeping it. But I could also be convinced to drop it.

Blocked on #3322.
This commit is contained in:
Michael Sproul
2022-07-28 09:43:41 +00:00
parent efb360cc6d
commit d04fde3ba9
25 changed files with 742 additions and 151 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
beacon_node/beacon_chain/src/schema_change.rs
View File

@@ -1,5 +1,6 @@
//! Utilities for managing database schema changes.
mod migration_schema_v10;
mod migration_schema_v11;
mod migration_schema_v6;
mod migration_schema_v7;
mod migration_schema_v8;
@@ -8,7 +9,8 @@ mod types;
use crate::beacon_chain::{BeaconChainTypes, FORK_CHOICE_DB_KEY};
use crate::persisted_fork_choice::{
PersistedForkChoiceV1, PersistedForkChoiceV10, PersistedForkChoiceV7, PersistedForkChoiceV8,
PersistedForkChoiceV1, PersistedForkChoiceV10, PersistedForkChoiceV11, PersistedForkChoiceV7,
PersistedForkChoiceV8,
};
use crate::types::ChainSpec;
use slog::{warn, Logger};
@@ -36,6 +38,12 @@ pub fn migrate_schema<T: BeaconChainTypes>(
migrate_schema::<T>(db.clone(), datadir, from, next, log.clone(), spec)?;
migrate_schema::<T>(db, datadir, next, to, log, spec)
}
// Downgrade across multiple versions by recursively migrating one step at a time.
(_, _) if to.as_u64() + 1 < from.as_u64() => {
let next = SchemaVersion(from.as_u64() - 1);
migrate_schema::<T>(db.clone(), datadir, from, next, log.clone(), spec)?;
migrate_schema::<T>(db, datadir, next, to, log, spec)
}
//
// Migrations from before SchemaVersion(5) are deprecated.
@@ -159,6 +167,35 @@ pub fn migrate_schema<T: BeaconChainTypes>(
Ok(())
}
// Upgrade from v10 to v11 adding support for equivocating indices to fork choice.
(SchemaVersion(10), SchemaVersion(11)) => {
let mut ops = vec![];
let fork_choice_opt = db.get_item::<PersistedForkChoiceV10>(&FORK_CHOICE_DB_KEY)?;
if let Some(fork_choice) = fork_choice_opt {
let updated_fork_choice = migration_schema_v11::update_fork_choice(fork_choice);
ops.push(updated_fork_choice.as_kv_store_op(FORK_CHOICE_DB_KEY));
}
db.store_schema_version_atomically(to, ops)?;
Ok(())
}
// Downgrade from v11 to v10 removing support for equivocating indices from fork choice.
(SchemaVersion(11), SchemaVersion(10)) => {
let mut ops = vec![];
let fork_choice_opt = db.get_item::<PersistedForkChoiceV11>(&FORK_CHOICE_DB_KEY)?;
if let Some(fork_choice) = fork_choice_opt {
let updated_fork_choice =
migration_schema_v11::downgrade_fork_choice(fork_choice, log);
ops.push(updated_fork_choice.as_kv_store_op(FORK_CHOICE_DB_KEY));
}
db.store_schema_version_atomically(to, ops)?;
Ok(())
}
// Anything else is an error.
(_, _) => Err(HotColdDBError::UnsupportedSchemaVersion {
target_version: to,