Proxy Server Partial Database Migration
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Solution Overview
Problem
Migrating applications from legacy databases to cloud-based databases is complex and error-prone due to differences in database behavior and the lack of portable sophisticated database functionality, often requiring significant modifications and risking application instability.
Innovation Solution
An application migration management system that uses a proxy server to monitor database usage, generate migration plans, and route requests between legacy and new databases, allowing partial migration and gradual transition without modifying the application, employing machine learning to ensure query result consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If application migration is performed from legacy database to new database, then cloud-based database service adoption is improved, but migration complexity and error risk increase
Solution Approach 1:
The patent introduces a database proxy as an intermediary component that sits between the application and both the legacy and new databases. The proxy translates database requests from the application format compatible with the legacy database into formats compatible with the new database, eliminating the need for direct application modification and simplifying the migration process while enabling cloud-based database adoption.
Solution Approach 2:
The migration process is segmented into distinct phases: initial legacy database connection, gradual migration of database objects to the new database, and selective routing of requests through the proxy. This segmentation allows the system to transition incrementally rather than requiring a complete, high-risk migration event, thereby reducing overall migration complexity.
2Adaptability or versatility
If complete database migration is performed, then new database functionality is utilized, but application stability and reliability deteriorate due to undetected behavioral differences
Solution Approach 1:
The patent implements a feedback mechanism where the database proxy monitors and compares query results from both the legacy and new databases during the migration process. By analyzing differences in database behavior and query outcomes, the system can identify and correct issues before they affect production applications, thereby maintaining reliability while utilizing new database functionality.
Solution Approach 2:
Rather than performing a complete migration at once, the patent employs partial migration where only certain database objects are migrated to the new database while others remain on the legacy system. This approach allows the application to continue operating stably on the proven legacy database while gradually incorporating new database functionality, balancing innovation with stability.
3Adaptability or versatility
If application code modification is required for migration, then database portability is improved, but migration time and cost increase
Solution Approach 1:
The database proxy serves as a mediator that handles all database compatibility translations, eliminating the need to modify application code. The proxy intercepts database requests from the application and translates them between legacy and new database formats, achieving database portability while keeping the application code unchanged and migration time minimal.
Solution Approach 2:
The patent creates a virtual copy of the legacy database interface through the proxy server. This copy presents the same interface to the application as the original legacy database, allowing the application to operate without modification while the proxy handles all interactions with the new database system, dramatically reducing migration time and cost.
4Reliability
If sophisticated database functionality is migrated, then application capability is maintained, but migration difficulty and error potential increase
Solution Approach 1:
The database proxy acts as an intelligent intermediary that automatically translates sophisticated database functionality between legacy and new database systems. Complex stored procedures, triggers, and other advanced features are handled by the proxy's translation layer, maintaining application capability while eliminating the need for manual migration of complex database objects and reducing migration difficulty.
Data Source
AI summary
Systems and methods are provided to enable a partial migration of applications from one database system to another without modifying the applications. In embodiments, a proxy server is configured to monitor the application's usage of a current database, and generate a migration plan to partially migrate database objects used by the application to a different type of database. An object may be selected for migration based on its usage level or its portability. After the partial migration, the proxy server may remain in place as a request router to route the application's requests to the two databases. In embodiments, the migration system may forward queries to both databases and compare the query results received from the two. Based on the comparison results, the migration system may programmatically determine adjustments to its query handling configuration settings.