AlloyDB Hot Standby: Faster Failovers & Consistent Performance
AlloyDB for PostgreSQL is a fully managed, PostgreSQL-compatible database service designed for the most demanding enterprise workloads. It combines the best of PostgreSQL with the power of Google, delivering exceptional performance, scalability, and availability. We are continuously innovating to make AlloyDB even more resilient, and today, we're excited to announce a significant upgrade to our High Availability (HA) architecture: Hot Standby.
Understanding AlloyDB HA Architecture
An AlloyDB primary instance configured for high availability consists of an active node and a standby node, located in different zones within a region for resilience. AlloyDB's cloud-native architecture separates compute and storage to allow for individual scaling of each resource. Database write-ahead logs (WAL) are synchronously written to a regional log persistor, ensuring durability, while data blocks reside in AlloyDB's regional storage service. A load balancer directs traffic to the current active node using a stable IP address.
In the traditional HA model,...
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