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-rw-r--r--src/table/replication/fullcopy.rs59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/table/replication/fullcopy.rs b/src/table/replication/fullcopy.rs
new file mode 100644
index 00000000..a62a6c3c
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+++ b/src/table/replication/fullcopy.rs
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+use std::sync::Arc;
+
+use garage_rpc::membership::System;
+use garage_rpc::ring::Ring;
+use garage_util::data::*;
+
+use crate::replication::*;
+
+#[derive(Clone)]
+pub struct TableFullReplication {
+ pub max_faults: usize,
+}
+
+#[derive(Clone)]
+struct Neighbors {
+ ring: Arc<Ring>,
+ neighbors: Vec<UUID>,
+}
+
+impl TableFullReplication {
+ pub fn new(max_faults: usize) -> Self {
+ TableFullReplication { max_faults }
+ }
+}
+
+impl TableReplication for TableFullReplication {
+ // Full replication schema: all nodes store everything
+ // Writes are disseminated in an epidemic manner in the network
+
+ // Advantage: do all reads locally, extremely fast
+ // Inconvenient: only suitable to reasonably small tables
+
+ fn read_nodes(&self, _hash: &Hash, system: &System) -> Vec<UUID> {
+ vec![system.id]
+ }
+ fn read_quorum(&self) -> usize {
+ 1
+ }
+
+ fn write_nodes(&self, hash: &Hash, system: &System) -> Vec<UUID> {
+ self.replication_nodes(hash, system.ring.borrow().as_ref())
+ }
+ fn write_quorum(&self, system: &System) -> usize {
+ system.ring.borrow().config.members.len() - self.max_faults
+ }
+ fn max_write_errors(&self) -> usize {
+ self.max_faults
+ }
+
+ fn replication_nodes(&self, _hash: &Hash, ring: &Ring) -> Vec<UUID> {
+ ring.config.members.keys().cloned().collect::<Vec<_>>()
+ }
+ fn split_points(&self, _ring: &Ring) -> Vec<Hash> {
+ let mut ret = vec![];
+ ret.push([0u8; 32].into());
+ ret.push([0xFFu8; 32].into());
+ ret
+ }
+}