Multi-Region Deployments

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 pin data to different geographic locations based on policy
• xCluster for unidirectional and bidirectional asynchronous replication
• Read replicas to serve reads to different region using asynchronous replication

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 asynchronous replication to read replicas.
Consistency	Transactional	Transactional	Transactional	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	Transparently managed (Limitations)	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.

{{<index/block>}}

{{<index/item title="Synchronous multi region" body="Distribute data synchronously across regions." href="synchronous-replication-ysql/" icon="fa-thin fa-circle-nodes">}}

{{<index/item title="xCluster" body="Asynchronous replication across regions." href="../going-beyond-sql/asynchronous-replication-ysql/" icon="fa-thin fa-clone">}}

{{<index/item title="Row-level geo-partitioning" body="Pin data to regions for compliance and lower latencies." href="row-level-geo-partitioning/" icon="fa-thin fa-earth-europe">}}

{{<index/item title="Read replicas" body="Improve read latencies using read-only replicas." href="read-replicas-ysql/" icon="fa-thin fa-book-open">}}

{{</index/block>}}