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Add database schema versioning (#1688)

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## Issue Addressed

Closes #673

## Proposed Changes

Store a schema version in the database so that future releases can check they're running against a compatible database version. This would also enable automatic migration on breaking database changes, but that's left as future work.

The database config is also stored in the database so that the `slots_per_restore_point` value can be checked for consistency, which closes #673
This commit is contained in:
Michael Sproul
2020-09-30 02:36:07 +00:00
committed by Paul Hauner
parent cdec3cec18
commit 22aedda1be
10 changed files with 153 additions and 42 deletions
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22
beacon_node/beacon_chain/src/beacon_chain.rs
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@@ -66,10 +66,11 @@ pub const ATTESTATION_CACHE_LOCK_TIMEOUT: Duration = Duration::from_secs(1);
/// validator pubkey cache.
pub const VALIDATOR_PUBKEY_CACHE_LOCK_TIMEOUT: Duration = Duration::from_secs(1);
pub const BEACON_CHAIN_DB_KEY: [u8; 32] = [0; 32];
pub const OP_POOL_DB_KEY: [u8; 32] = [0; 32];
pub const ETH1_CACHE_DB_KEY: [u8; 32] = [0; 32];
pub const FORK_CHOICE_DB_KEY: [u8; 32] = [0; 32];
// These keys are all zero because they get stored in different columns, see `DBColumn` type.
pub const BEACON_CHAIN_DB_KEY: Hash256 = Hash256::zero();
pub const OP_POOL_DB_KEY: Hash256 = Hash256::zero();
pub const ETH1_CACHE_DB_KEY: Hash256 = Hash256::zero();
pub const FORK_CHOICE_DB_KEY: Hash256 = Hash256::zero();
/// The result of a chain segment processing.
pub enum ChainSegmentResult<T: EthSpec> {
@@ -260,7 +261,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
let fork_choice = self.fork_choice.read();
self.store.put_item(
&Hash256::from_slice(&FORK_CHOICE_DB_KEY),
&FORK_CHOICE_DB_KEY,
&PersistedForkChoice {
fork_choice: fork_choice.to_persisted(),
fork_choice_store: fork_choice.fc_store().to_persisted(),
@@ -272,8 +273,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
metrics::stop_timer(fork_choice_timer);
let head_timer = metrics::start_timer(&metrics::PERSIST_HEAD);
self.store
.put_item(&Hash256::from_slice(&BEACON_CHAIN_DB_KEY), &persisted_head)?;
self.store.put_item(&BEACON_CHAIN_DB_KEY, &persisted_head)?;
metrics::stop_timer(head_timer);
@@ -290,7 +290,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
let _timer = metrics::start_timer(&metrics::PERSIST_OP_POOL);
self.store.put_item(
&Hash256::from_slice(&OP_POOL_DB_KEY),
&OP_POOL_DB_KEY,
&PersistedOperationPool::from_operation_pool(&self.op_pool),
)?;
@@ -302,10 +302,8 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
let _timer = metrics::start_timer(&metrics::PERSIST_OP_POOL);
if let Some(eth1_chain) = self.eth1_chain.as_ref() {
self.store.put_item(
&Hash256::from_slice(&ETH1_CACHE_DB_KEY),
&eth1_chain.as_ssz_container(),
)?;
self.store
.put_item(&ETH1_CACHE_DB_KEY, &eth1_chain.as_ssz_container())?;
}
Ok(())