Consider the following recommendations for PostgreSQL database on Kubernetes using Dell PowerFlex CSI driver in Dell APEX Block storage for Azure environment:
- Deploy PostgreSQL StatefulSet with multiple replicas to ensure dynamic provisioning of persistent storage for the database.
- Use persistent storage for PostgreSQL database from DELL APEX Block Storage using local attached NVMe SSD disks to achieve higher IOPS with low latency and handle millions of user transactions.
- It is recommended to carefully review PostgreSQL configuration parameters in the postgresql.conf file to optimize performance for specific workload. Values for configurable parameters like shared_buffers, work_mem, and effective_cache_size can be modified depends on the overall system resources available. For tuning the PostgreSQL parameters, online tools can be used. For more information, see the following example, Postgres Tunable parameters.
- Manage database connections efficiently to prevent connection bottlenecks.
- Maintain PostgreSQL and Kubernetes updated with the latest stable releases to benefit from bug fixes, security patches, and performance improvements.