Crate raft_hpc_core 

raft-hpc-core

Shared Raft consensus infrastructure for HPC systems. Extracted from lattice-quorum with minimal parameterization — each application provides its own TypeConfig via openraft::declare_raft_types!.

What’s generic (in this crate)

• Log stores (in-memory, file-backed, polymorphic variant)
• gRPC transport (network factory, transport server)
• In-memory network (for testing)
• State machine (snapshot management, apply dispatch)
• Backup (export, verify, restore)

What’s application-specific (NOT in this crate)

• TypeConfig declaration (openraft::declare_raft_types!)
• Command and CommandResponse enums
• Application state (GlobalState, JournalState, etc.)
• StateMachineState::apply() implementation
• Client trait implementations
• Factory functions (create_quorum, etc.)

Re-exports

pub use backup::BackupMetadata;

pub use backup::export_backup;

pub use backup::restore_backup;

pub use backup::verify_backup;

pub use log_store_variant::LogReaderVariant;

pub use log_store_variant::LogStoreVariant;

pub use network::MemNetworkFactory;

pub use persistent_store::FileLogStore;

pub use state_machine::HpcStateMachine;

pub use store::MemLogStore;

pub use transport::GrpcNetworkFactory;

pub use transport::PeerTlsConfig;

pub use transport_server::RaftTransportServer;

Modules

backup

Backup export, verify, and restore for Raft state.

log_store_variant

Polymorphic log store that switches between in-memory and file-backed storage.

network

In-memory Raft network for testing.

persistent_store

File-backed log store for Raft.

proto

Generated protobuf types for the Raft transport service.

state_machine

Generic Raft state machine with persistent snapshot support.

store

In-memory log storage for Raft.

transport

gRPC-based Raft network transport for multi-process clusters.

transport_server

Tonic server handler for Raft RPCs.

Traits

BackupMetadataSource

Application state that supports backup metadata extraction.

StateMachineState

Application state managed by the Raft state machine.