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Improve freezer DB efficiency with periodic restore points (#649)

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* Draft of checkpoint freezer DB

* Fix bugs

* Adjust root iterators for checkpoint database

* Fix freezer state lookups with no slot hint

* Fix split comment

* Use "restore point" to refer to frozen states

* Resolve some FIXMEs

* Configurable slots per restore point

* Document new freezer DB functions

* Fix up StoreConfig

* Fix new test for merge

* Document SPRP default CLI flag, clarify tests
This commit is contained in:
Michael Sproul
2019-12-06 14:29:06 +11:00
committed by Paul Hauner
parent 5a765396b7
commit d0319320ce
13 changed files with 587 additions and 91 deletions
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8
eth2/types/src/beacon_state.rs
View File

@@ -576,6 +576,14 @@ impl<T: EthSpec> BeaconState<T> {
Ok(&self.state_roots[i])
}
/// Gets the oldest (earliest slot) block root.
///
/// Spec v0.9.1
pub fn get_oldest_block_root(&self) -> Result<&Hash256, Error> {
let i = self.get_latest_block_roots_index(self.slot - self.block_roots.len() as u64)?;
Ok(&self.block_roots[i])
}
/// Sets the latest state root for slot.
///
/// Spec v0.9.1