garage/src/table/replication/parameters.rs

23 lines
659 B
Rust

use garage_rpc::ring::Ring;
use garage_util::data::*;
pub trait TableReplication: Send + Sync {
// See examples in table_sharded.rs and table_fullcopy.rs
// To understand various replication methods
// Partition number of data item (for Merkle tree)
fn partition_of(&self, hash: &Hash) -> u16;
// Which nodes to send reads from
fn read_nodes(&self, hash: &Hash) -> Vec<UUID>;
fn read_quorum(&self) -> usize;
// Which nodes to send writes to
fn write_nodes(&self, hash: &Hash) -> Vec<UUID>;
fn write_quorum(&self) -> usize;
fn max_write_errors(&self) -> usize;
// Get partition boundaries
fn split_points(&self, ring: &Ring) -> Vec<Hash>;
}