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#high availability

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How would you approach MySQL replication in a high availability architecture, and what factors would you consider when selecting between asynchronous and synchronous replication methods?

I would evaluate the system’s need for data consistency versus performance. If real-time data consistency is crucial, synchronous replication is preferable, despite potential latency. For higher performance with some acceptable…

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How would you handle Redis data persistence in a high-availability environment to ensure data durability while maintaining performance?

In a high-availability environment, I would use Redis’ AOF (Append Only File) persistence alongside RDB (Redis Database Backup) snapshots. AOF provides better durability as it logs every write operation, while…

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Can you explain how to design a high-availability MySQL database architecture and what strategies you would use to ensure data consistency and failover?

To design a high-availability MySQL database, I would implement a master-slave replication setup with automatic failover using tools like MHA or Orchestrator. It’s crucial to manage data consistency through synchronous…

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Can you explain how to design a highly available and fault-tolerant architecture on AWS using services like EC2, RDS, and ELB?

To design a highly available architecture on AWS, I would use multiple Availability Zones (AZs) for EC2 instances and RDS databases. An Elastic Load Balancer (ELB) would distribute incoming traffic…

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Can you describe your approach to setting up PostgreSQL for high availability in a production environment?

For high availability in PostgreSQL, I typically use a combination of streaming replication and failover management tools like Patroni or repmgr. This setup ensures that there are always standby servers…

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