User-Initiated Snapshot Replication for Synchronized Data Systems
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Solution Overview
Problem
Existing data replication systems face challenges in efficiently replicating unsynchronized objects in synchronized replication systems without disrupting object creation and manipulation at the source repository, while maintaining the normal order of replication and detecting only the objects that require replication.
Innovation Solution
A user-initiated replication method that creates a snapshot of selected objects, compares their state with the target destination, and initiates replication tasks only for unsynchronized objects, ensuring that replication occurs in the exact order of operations and does not disrupt local object operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If replication is initiated for all objects in a synchronized replication system, then data consistency is improved, but system performance deteriorates due to unnecessary replication of already synchronized objects
Solution Approach 1:
The system automatically tracks and identifies unsynchronized objects through change detection mechanisms, eliminating the need for manual assessment. The replication process serves itself by using metadata and change logs to determine which objects require replication, reducing overhead and improving efficiency.
Solution Approach 2:
The patent replaces traditional mechanical comparison methods (full object comparison) with metadata-based change detection. By using change logs, version identifiers, and metadata tracking, the system efficiently identifies unsynchronized objects without performing heavy mechanical comparisons of entire objects.
2Reliability
If replication processes are initiated frequently to ensure data consistency, then data availability is improved, but loss of time increases due to repeated replication operations
Solution Approach 1:
The system implements periodic change detection and replication triggering based on object modification events. Instead of continuous or frequent periodic replication, the system activates replication only when changes are detected, using event-driven periodic action to minimize unnecessary replication operations and reduce time loss.
Solution Approach 2:
The system performs preliminary change detection and object state assessment before initiating replication. By pre-identifying unsynchronized objects through metadata comparison and change log analysis, the system prepares replication tasks in advance, reducing actual replication time and avoiding unnecessary operations.
3Reliability
If the system replicates all objects regardless of synchronization state, then completeness is improved, but device complexity increases due to overhead in tracking and managing replication states
Solution Approach 1:
The patent extracts only the essential synchronization state information (metadata, change logs, version identifiers) from full objects, separating the tracking mechanism from the actual data. This extraction approach maintains replication completeness while significantly reducing the complexity of tracking and managing replication states.
Solution Approach 2:
The system changes the parameters used for tracking replication state from full object copies to lightweight metadata attributes (version numbers, timestamps, change identifiers). This parameter transformation maintains the ability to detect unsynchronized objects while reducing system overhead and complexity.
Data Source
AI summary
A snapshot of selected objects in a source repository is created in response to the user-initiated replication. The snapshot is designated as a snapshot replication job. Unsynchronized objects in a target destination are detected by comparing a state of the selected objects in the snapshot with a current state of the target destination at the time of execution of the snapshot replication job. An object identification (ID) and a state ID are sent to the target destination and used to locate and compare the selected object with a current state of the selected object in the target destination.