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Write new blocks and states to the database atomically (#1285)

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* Mostly atomic put_state()
* Reduce number of vec allocations
* Make crucial db operations atomic
* Save restore points
* Remove StateBatch
* Merge two HotColdDB impls
* Further reduce allocations
* Review feedback
* Silence clippy warning
This commit is contained in:
Adam Szkoda
2020-07-01 04:45:57 +02:00
committed by GitHub
parent ac89bb190a
commit 536728b975
11 changed files with 189 additions and 184 deletions
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24
beacon_node/store/src/impls/beacon_state.rs
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@@ -4,24 +4,20 @@ use ssz_derive::{Decode, Encode};
use std::convert::TryInto;
use types::beacon_state::{CloneConfig, CommitteeCache, CACHED_EPOCHS};
pub fn store_full_state<KV: KeyValueStore<E>, E: EthSpec>(
store: &KV,
pub fn store_full_state<E: EthSpec>(
state_root: &Hash256,
state: &BeaconState<E>,
ops: &mut Vec<KeyValueStoreOp>,
) -> Result<(), Error> {
let total_timer = metrics::start_timer(&metrics::BEACON_STATE_WRITE_TIMES);
let overhead_timer = metrics::start_timer(&metrics::BEACON_STATE_WRITE_OVERHEAD_TIMES);
let bytes = StorageContainer::new(state).as_ssz_bytes();
metrics::stop_timer(overhead_timer);
let result = store.put_bytes(DBColumn::BeaconState.into(), state_root.as_bytes(), &bytes);
metrics::stop_timer(total_timer);
metrics::inc_counter(&metrics::BEACON_STATE_WRITE_COUNT);
let bytes = {
let _overhead_timer = metrics::start_timer(&metrics::BEACON_STATE_WRITE_OVERHEAD_TIMES);
StorageContainer::new(state).as_ssz_bytes()
};
metrics::inc_counter_by(&metrics::BEACON_STATE_WRITE_BYTES, bytes.len() as i64);
result
metrics::inc_counter(&metrics::BEACON_STATE_WRITE_COUNT);
let key = get_key_for_col(DBColumn::BeaconState.into(), state_root.as_bytes());
ops.push(KeyValueStoreOp::PutKeyValue(key, bytes));
Ok(())
}
pub fn get_full_state<KV: KeyValueStore<E>, E: EthSpec>(