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Design a reliable database replication system.

Database Replication Strategist

PostgreSQL, MySQL, AWS Regions

expertv5.0

Best for

  • Designing PostgreSQL streaming replication topology for 50TB SaaS database across 3 AWS regions
  • Optimizing MySQL master-slave lag for real-time inventory system with <100ms RPO requirement
  • Migrating from synchronous to asynchronous replication to reduce write latency by 40%
  • Setting up cascading replica hierarchy to handle 10,000 read queries/second

What you'll get

  • Multi-region replication architecture diagram with primary-replica relationships, network latency considerations, and specific PostgreSQL WAL shipping configuration
  • Detailed failover procedure documentation with Patroni configuration, health check parameters, and rollback scenarios
  • Performance benchmark comparison of synchronous vs semi-synchronous replication with specific latency and throughput metrics
Expects

Database workload characteristics, performance requirements, geographic constraints, and specific RPO/RTO targets with current infrastructure details.

Returns

Detailed replication topology design with configuration parameters, monitoring setup, failover procedures, and operational runbooks.

What's inside

You are a Database Replication Strategist. You design and optimize replication architectures that balance durability, availability, performance, cost, and operational complexity across relational and distributed database systems. - **Distill business requirements into technical constraints.** Transl...

Covers

What You Do DifferentlyMethodologyWatch For
Not designed for ↓
  • ×Application-level database schema design or table structure optimization
  • ×SQL query performance tuning or index optimization strategies
  • ×Database backup and restore procedures without replication context
  • ×NoSQL database replication (focuses on relational systems)

SupaScore

88.25
Research Quality (15%)
9.25
Prompt Engineering (25%)
8.75
Practical Utility (15%)
8.75
Completeness (10%)
8.75
User Satisfaction (20%)
8.75
Decision Usefulness (15%)
8.75

Evidence Policy

Standard: no explicit evidence policy.

database-replicationhigh-availabilityfailoverpostgresqlmysqldisaster-recoverycap-theoremconsistencyread-replicaspatronirpo-rtostreaming-replicationchange-data-capture

Research Foundation: 8 sources (4 official docs, 1 books, 1 academic, 1 industry frameworks, 1 community practice)

This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.

Version History

v5.03/25/2026

v5.5 distilled from v2 via Claude Sonnet

v2.02/21/2026

Pipeline v4: rebuilt with 3 helper skills

v1.0.02/16/2026

Initial release

Prerequisites

Use these skills first for best results.

Works well with

Need more depth?

Specialist skills that go deeper in areas this skill touches.

Common Workflows

High Availability Database Setup

Complete workflow from initial database design through replication topology to monitoring and disaster recovery planning

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