Amazon Aurora DSQL

Amazon Aurora DSQL is a serverless, distributed SQL database designed for high availability, scalability, and minimal infrastructure management

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It eliminates operational burdens like patching, updates, and maintenance downtime for always-on applications

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Aurora DSQL’s architecture is modular, with separate components (query processor, adjudicator, journal, crossbar) that scale independently

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The system supports multi-region strong consistency with low latency and globally synchronized time

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Active-active distributed architecture provides 99.999% availability across regions and 99.99% in a single region

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Write transactions are synchronously replicated to storage replicas in three Availability Zones for durability

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Multi-region clusters use two endpoints for concurrent read/write operations and a third region as a log-only witness for resilience

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