Multi-Region Deployments
Multi-Region Deployments in YugabyteDB.
YugabyteDB supports a rich set of multi-region deployment topologies. This section explains some of these deployments. The predominant deployments include:
- Default synchronous replication across regions
- Geo-partitioning to keep data pinned to different geographic locations based on policy
- xCluster asynchronous replication for unidirectional and bidirectional replication
- Read replicas which internally use asynchronous replication and can only serve reads
The following table summarizes these different multi-region deployments in YugabyteDB along with some of their key characteristics.
| Default | Geo-partitioning | xCluster | Read replicas | |
|---|---|---|---|---|
| Replication | Synchronous | Synchronous | Asynchronous (unidirectional and bidirectional) |
Asynchronous (unidirectional only) |
| Data residency | All data replicated across regions | Data partitioned across regions. Partitions replicated inside region. |
All data replicated inside region. Configure per-table cross-region replication. |
All data replicated in primary region. Cluster-wide async replication to read replicas. |
| Consistency | Transactional | Transactional | Timeline consistency | Timeline consistency |
| Write latency | High latency | Low latency | Low latency | N/A |
| Read latency | High latency | Low latency (when queried from nearby geography) |
Low latency | Low latency |
| Schema changes | Transparently managed | Transparently managed | Manual propagation | Transparently managed |
| RPO | No data loss | No data loss (partial unavailability possible) |
Some data loss | No data loss |
The deployment types are explained in the following sections:
