garage/src/table/replication/parameters.rs
Alex Auvolat 1b450c4b49
Improvements to CLI and various fixes for netapp version
Discovery via consul, persist peer list to file
2021-10-22 16:55:24 +02:00

25 lines
870 B
Rust

use garage_rpc::ring::*;
use garage_util::data::*;
/// Trait to describe how a table shall be replicated
pub trait TableReplication: Send + Sync {
// See examples in table_sharded.rs and table_fullcopy.rs
// To understand various replication methods
/// Which nodes to send read requests to
fn read_nodes(&self, hash: &Hash) -> Vec<Uuid>;
/// Responses needed to consider a read succesfull
fn read_quorum(&self) -> usize;
/// Which nodes to send writes to
fn write_nodes(&self, hash: &Hash) -> Vec<Uuid>;
/// Responses needed to consider a write succesfull
fn write_quorum(&self) -> usize;
fn max_write_errors(&self) -> usize;
// Accessing partitions, for Merkle tree & sync
/// Get partition for data with given hash
fn partition_of(&self, hash: &Hash) -> Partition;
/// List of existing partitions
fn partitions(&self) -> Vec<(Partition, Hash)>;
}