Oracle GoldenGate 12c: Fundamentals for Oracle Ed 2 — Lesson 4: Operations, Lag Analysis, Error Handling, and Recovery

Technical Scope

• GGSCI status, info, lag, stats, reports, discard, and log review
• checkpoint movement, long transactions, network lag, and apply bottlenecks
• abend diagnosis, missing trail, duplicate data, collision handling, and restart position
• runbook, alert thresholds, recovery test, and operational handoff

Instructor Demonstration

The instructor will troubleshoot and harden GGSCI status, info, lag, stats, reports, discard, and log review in the context of a unidirectional Oracle replication solution established with verifiable checkpoints, consistency, and recoverability. The demonstration captures commands, configuration, transactions, output, logs, plans, or screenshots that prove both the intended behavior and the control boundary.

Applied Workshop

Learners complete a controlled exercise covering checkpoint movement, long transactions, network lag, and apply bottlenecks and abend diagnosis, missing trail, duplicate data, collision handling, and restart position, then introduce a realistic exception involving runbook, alert thresholds, recovery test, and operational handoff. They record assumptions, exact steps, expected and observed results, a reversible correction, and the evidence required for operational acceptance.

1. Confirm scope, identities, data, dependencies, controls, and expected result.
2. Perform the product-specific configuration, development, analysis, or business-process task.
3. Capture reproducible technical or transaction evidence and compare it with the expected value.
4. Explain the operational, security, performance, data-quality, or business trade-off.

Validation Standard

Acceptance for Operations, Lag Analysis, Error Handling, and Recovery requires the result to be reproducible, traceable to approved inputs, consistent with the relevant Oracle or platform behavior, and supported by checks for security, data integrity, reliability, performance, and recoverability.

• The intended target, scope, and ownership are verified.
• Expected-value and negative-path checks pass.
• Security, reliability, performance, data quality, and support impacts are reviewed.
• Unexpected behavior is resolved before acceptance.

Failure Analysis

When the result differs from expectation, learners isolate the smallest proven cause across GGSCI status, info, lag, stats, reports, discard, and log review, checkpoint movement, long transactions, network lag, and apply bottlenecks, abend diagnosis, missing trail, duplicate data, collision handling, and restart position; they avoid speculative production changes, preserve evidence, apply the lowest-risk correction, rerun the test, and document prevention.

Practical Outcome

Complete and defend a validated result for Operations, Lag Analysis, Error Handling, and Recovery with a reusable implementation record or runbook.