Crate sc_client_db

Client backend that is backed by a database.

Canonicality vs. Finality

Finality indicates that a block will not be reverted, according to the consensus algorithm, while canonicality indicates that the block may be reverted, but we will be unable to do so, having discarded heavy state that will allow a chain reorganization.

Finality implies canonicality but not vice-versa.

Modules

light	RocksDB-based light client blockchain storage.
offchain	RocksDB-based offchain workers local storage.

Structs

Backend	Disk backend.
BlockImportOperation	Database transaction
BlockchainDb	Block database
DatabaseSettings	Database settings.
RefTrackingState	A reference tracking state.

Enums

DatabaseSettingsSrc	Where to find the database..
KeepBlocks	Block pruning settings.
PruningMode	Pruning mode.
TransactionStorageMode	Block body storage scheme.

Traits

Database

Type Definitions

DbHash	Hash type that this backend uses for the database.
DbState	DB-backed patricia trie state, transaction type is an overlay of changes to commit.