In today’s fast-paced world, real-time data synchronization is becoming increasingly important for businesses to stay competitive. SQL Galera Cluster offers a solution to achieve near real-time data synchronization through its Galera Streaming Replication feature.
What is Galera Streaming Replication?
Galera Streaming Replication is a replication technology offered by SQL Galera Cluster. It allows multiple nodes in a cluster to synchronize their data in near real-time by using a combination of synchronous and asynchronous replication techniques.
How does Galera Streaming Replication work?
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Synchronous Replication: With Galera Streaming Replication, all write operations (INSERT, UPDATE, DELETE) are applied synchronously across all nodes in the cluster. This ensures that the data is consistent across all nodes at all times.
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Asynchronous Replication: In addition to synchronous replication, Galera Streaming Replication uses a technique called “certification-based asynchronous replication” to handle conflicts and enhance performance. It allows read operations to be executed locally on each node without waiting for remote confirmation.
Advantages of Galera Streaming Replication
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Near Real-Time Data Synchronization: Galera Streaming Replication allows for near real-time data synchronization between nodes in the cluster. This means that any changes made on one node are quickly propagated to all other nodes, ensuring data consistency across the entire cluster.
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High Availability: SQL Galera Cluster with Galera Streaming Replication provides high availability by eliminating a single point of failure. If one node fails, the other nodes continue to serve requests seamlessly without any interruption in the service.
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Simple Configuration and Management: Setting up Galera Streaming Replication is relatively simple, requiring only a few configuration changes. Once configured, the replication is managed automatically by the cluster, reducing manual intervention.
Implementing Galera Streaming Replication
To implement Galera Streaming Replication, follow these steps:
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Install and configure SQL Galera Cluster on the desired nodes.
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Enable Galera Streaming Replication by modifying the cluster configuration file.
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Start the cluster and verify the status of the nodes to ensure they are connected and synchronized.
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Test the replication by performing write operations on one node and verifying that the changes are replicated to other nodes.
Conclusion
Galera Streaming Replication in SQL Galera Cluster is a powerful feature that enables near real-time data synchronization in a cluster environment. By combining synchronous and asynchronous replication techniques, it provides high availability and ensures data consistency across all nodes. Implementing Galera Streaming Replication is a straightforward process, making it an ideal choice for businesses requiring near real-time data synchronization. #Galera #Database #Replication