diff options
Diffstat (limited to 'src/table/replication/parameters.rs')
| -rw-r--r-- | src/table/replication/parameters.rs | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/src/table/replication/parameters.rs b/src/table/replication/parameters.rs index f00815a2..78470f35 100644 --- a/src/table/replication/parameters.rs +++ b/src/table/replication/parameters.rs @@ -1,25 +1,44 @@ -use garage_rpc::ring::*; +use garage_rpc::layout::*; use garage_util::data::*; /// Trait to describe how a table shall be replicated pub trait TableReplication: Send + Sync + 'static { + type WriteSets: AsRef<Vec<Vec<Uuid>>> + AsMut<Vec<Vec<Uuid>>> + Send + Sync + 'static; + // See examples in table_sharded.rs and table_fullcopy.rs // To understand various replication methods + /// The entire list of all nodes that store a partition + fn storage_nodes(&self, hash: &Hash) -> Vec<Uuid>; + /// 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_sets(&self, hash: &Hash) -> Self::WriteSets; + /// Responses needed to consider a write succesfull in each set 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)>; + /// List of partitions and nodes to sync with in current layout + fn sync_partitions(&self) -> SyncPartitions; +} + +#[derive(Debug)] +pub struct SyncPartitions { + pub layout_version: u64, + pub partitions: Vec<SyncPartition>, +} + +#[derive(Debug)] +pub struct SyncPartition { + pub partition: Partition, + pub first_hash: Hash, + pub last_hash: Hash, + pub storage_sets: Vec<Vec<Uuid>>, } |