diff options
Diffstat (limited to 'src/table/replication/sharded.rs')
| -rw-r--r-- | src/table/replication/sharded.rs | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/src/table/replication/sharded.rs b/src/table/replication/sharded.rs index dce74b03..f2d89729 100644 --- a/src/table/replication/sharded.rs +++ b/src/table/replication/sharded.rs @@ -6,22 +6,25 @@ use garage_util::data::*; use crate::replication::*; +/// Sharded replication schema: +/// - based on the ring of nodes, a certain set of neighbors +/// store entries, given as a function of the position of the +/// entry's hash in the ring +/// - reads are done on all of the nodes that replicate the data +/// - writes as well #[derive(Clone)] pub struct TableShardedReplication { + /// The membership manager of this node pub system: Arc<System>, + /// How many time each data should be replicated pub replication_factor: usize, + /// How many nodes to contact for a read, should be at most `replication_factor` pub read_quorum: usize, + /// How many nodes to contact for a write, should be at most `replication_factor` pub write_quorum: usize, } impl TableReplication for TableShardedReplication { - // Sharded replication schema: - // - based on the ring of nodes, a certain set of neighbors - // store entries, given as a function of the position of the - // entry's hash in the ring - // - reads are done on all of the nodes that replicate the data - // - writes as well - fn read_nodes(&self, hash: &Hash) -> Vec<UUID> { let ring = self.system.ring.borrow().clone(); ring.walk_ring(&hash, self.replication_factor) |