Crate inferadb_ledger_raft

Expand description

Raft consensus infrastructure for InferaDB Ledger.

Provides:

OpenRaft integration with inferadb-ledger-store log storage
Combined RaftStorage implementation (log + state machine)
Inter-node Raft network transport
Transaction batching, rate limiting, and background jobs

§Public API

The stable public API surface consists of:

trace_context — distributed tracing propagation helpers
metrics — Prometheus metric constants and recording helpers
LedgerTypeConfig — OpenRaft type configuration

All other modules and re-exports are server-internal infrastructure hidden from documentation. They may change without notice.

§Architecture Note

OpenRaft 0.9 has sealed traits for RaftLogStorage and RaftStateMachine (v2 API). We use the deprecated but non-sealed RaftStorage trait which combines both log storage and state machine functionality into a single implementation.

§Security Model

Ledger runs behind WireGuard VPN. Authentication and authorization are handled by Engine/Control services upstream. Ledger trusts all incoming requests.

Modules§

metrics: Observability metrics exposed via Prometheus using the metrics crate.
trace_context: W3C Trace Context propagation for distributed tracing.

Structs§

LedgerTypeConfig: OpenRaft type configuration for the ledger’s Raft consensus layer. Ledger Raft type configuration.