Oracle GoldenGate 26ai: Advanced Configuration — Lesson 3: Bidirectional Replication, Conflict Detection, and Availability

Technical Scope

• loop prevention and transaction identification
• conflict detection and resolution
• active-active application constraints
• MAA, failover, service continuity, and recovery

Instructor Demonstration

Demonstrate loop prevention and transaction identification inside a zero-downtime migration that evolves into active-active replication with controlled conflict policy, then capture the exact configuration, command, transaction, report, or code evidence that proves the result.

Applied Workshop

Implement a controlled workshop covering conflict detection and resolution and active-active application constraints, then test a failure or exception involving MAA, failover, service continuity, and recovery.

1. Confirm environment, identity, data, dependencies, and expected result.
2. Complete the product-specific implementation or analysis.
3. Capture commands, configuration, output, logs, transactions, or reports.
4. Explain the operational, security, performance, or business trade-off.

Validation Standard

The Bidirectional Replication, Conflict Detection, and Availability result must be reproducible, traceable to approved inputs, and consistent with the expected Oracle product behavior.

• The intended target and ownership are verified.
• The result is supported by reproducible evidence.
• Security, performance, reliability, and support impact are reviewed.
• Unexpected behavior is investigated before acceptance.

Failure Analysis

Diagnose issues in loop prevention and transaction identification, conflict detection and resolution, active-active application constraints, or MAA, failover, service continuity, and recovery without making an unverified production change.

Learners isolate the smallest proven cause, apply a reversible correction, rerun validation, and record the preventive action.