Data replication is a method of copying data to ensure that all records remain identical in real-time or near real-time across all data sources. It is an ongoing process that ensures data from a master database is mirrored in a replica, even if located in different places. This is critical for businesses to ensure high availability for data and disaster recovery (DR).
Data replication can be achieved in various ways, such as disk mirroring at the storage level, typically accomplished through hardware. Zetaris can achieve this in a software-defined manner that is storage-agnostic, and it can be implemented across different regions.
Users can set a primary Iceberg instance and its replica, along with replication policies. Zetaris keeps checkpoints of Iceberg by examining Iceberg snapshots. By analyzing the differences between these snapshots, Zetaris can efficiently replicate only the changes that have occurred since the last replication cycle. This incremental approach helps optimize the replication process and minimize data transfer overhead.
It's important to note that Iceberg replication occurs in a one-way direction, specifically from the master node to the slave node. This ensures that the slave node remains consistent with the master node and serves as a reliable backup in case of failures or data loss on the master node. Maintaining this uni-directional replication flow simplifies data management and ensures data integrity across the global instance.
Iceberg replication plays a vital role in ensuring data redundancy, availability, and consistency within a global instance. By enabling efficient and reliable replication mechanisms, Zetaris Iceberg (containerized within ECS) replication helps organizations maintain high levels of data protection and resilience in their environments.