Product overview > Availability overview

Multi-master data grid replication topologies

With multi-master asynchronous replication, two or more data grids can become exact mirrors of one other asynchronous replication among links connecting the data grids together.

Each data grid is hosted in an independent catalog service domain, with its own...

• catalog service
• container servers
• A unique name

After defining links, we synchronize the catalog service domains.

Multi-master data grid replication is a significant new feature in v7.1. The feature is also called AP replication (availability and partitioning) in the context of the CAP theorem. The CAP theorem states that a distributed computer system cannot support more than two of the following three properties:

• consistency
• availability
• partition tolerance

A replication data grid infrastructure is a connected graph of catalog service domains with bidirectional links among them to track data changes.

Depending on the requirements of the environment, you can optimize for...

• arbitration
• linking
• performance

See

• Initial considerations for multi-master topology
  
• Available topologies for multi-master replication
  
• Topology considerations for multi-master replication
  

Parent topic:

Cache topology: In-memory and distributed caching

Parent topic:

Availability overview

Related concepts

Local in-memory cache
Peer-replicated local cache
Distributed cache
Embedded cache
High availability
Replicas and shards
Configure zones for replica placement
Distribute transactions
Map sets for replication

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