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Private Architecture
July 20248 weeks

Database Migration & EKS Integration

DevOps EngineerEngineering Dossier

Achievement Log

2024-07-15: Successfully orchestrated complex enterprise migration of 400+ tables from SQL Server to RDS MySQL in 6-hour production window with zero downtime. Resolved sophisticated data type errors, complex dependency issues, advanced functions, and views during enterprise migration process. Implemented enterprise-grade AWS DMS (Database Migration Service) with advanced custom mapping rules and sophisticated data transformation protocols. Engineered automated cron jobs for enterprise data archiving and maintenance with 100% success rate and comprehensive monitoring. Seamlessly integrated migrated database with existing EKS system and performed comprehensive live testing and debugging protocols. Result: Zero downtime enterprise migration, 100% data integrity, and successful enterprise system integration.

Overview

Successfully migrated 400+ tables from SQL Server to RDS MySQL in 6-hour production window using AWS DMS, with complex data transformation and automated maintenance systems.

Core Technologies

AWS DMS (Database Migration Service)AWS RDS MySQLAWS EKSSQL ServerCron JobsBash Scripting

Implementation & Architecture

AWS DMS Configuration

Set up comprehensive database migration service with custom mapping and transformation rules.

Execution Protocol

  1. Configured DMS replication instances with appropriate sizing
  2. Created source and target endpoints for SQL Server and MySQL
  3. Implemented custom mapping rules for data transformation
  4. Set up monitoring and alerting for migration progress

Data Migration Pipeline

Built end-to-end migration pipeline handling 400+ tables with complex dependencies.

Execution Protocol

  1. Resolved data type errors and compatibility issues
  2. Handled function and view migrations with custom scripts
  3. Implemented dependency resolution for table relationships
  4. Created rollback procedures for migration safety

EKS Integration

Integrated migrated database with existing EKS system for seamless application deployment.

Execution Protocol

  1. Updated application configurations for new database endpoints
  2. Performed live testing and debugging in production environment
  3. Implemented connection pooling and performance optimization
  4. Set up monitoring and alerting for database performance

Automated Maintenance

Created cron jobs and automated processes for ongoing database maintenance.

Execution Protocol

  1. Implemented automated data archiving procedures
  2. Created maintenance scripts for database optimization
  3. Set up monitoring for database health and performance
  4. Established backup and recovery procedures

Technical Skills

  • AWS DMS
  • Migration Cutover Planning
  • Cloud Migration Patterns (6Rs)
  • Amazon RDS
  • SQL Server
  • Amazon EKS (Kubernetes)
  • Task Scheduling (Cron)
  • Bash / Shell Scripting

Engineering Challenges

  • →Managing 400+ tables with complex interdependencies during migration
  • →Resolving data type errors and compatibility issues between SQL Server and MySQL
  • →Ensuring zero downtime during production migration
  • →Handling function and view migrations with custom transformation logic
  • →Integrating migrated database with existing EKS application stack

Project Outcomes

  • ✓
    Zero downtime migration completed in 6-hour production window
  • ✓
    100% data integrity maintained throughout migration process
  • ✓
    Successful integration with existing EKS system
  • ✓
    Automated maintenance processes with 100% success rate
  • ✓
    Improved database performance and reliability post-migration