Scenario: A finance application must handle CDC ordering validation. Build success, failure, concurrency and scale tests. Explain the invariant, SQL strategy, transaction/locking behavior, failure handling, observability and test plan. Use MySQL 8-oriented syntax where applicable.
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Answer & Explanation
4
Answers
Verified
Option 1: Run CDC ordering validation without defining transaction boundaries, retry behav
Run CDC ordering validation without defining transaction boundaries, retry behavior, or production validation.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
Verified
Correct Answer
Option 2: Use a parameterized, transaction-aware MySQL 8 implementation for CDC ordering v
Use a parameterized, transaction-aware MySQL 8 implementation for CDC ordering validation, validate the invariant, and explicitly test concurrency, retries and recovery.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
Verified
Option 3: Use unparameterized dynamic SQL and rely only on application-side validation for
Use unparameterized dynamic SQL and rely only on application-side validation for CDC ordering validation.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
Verified
Option 4: Disable database protections and repair inconsistent rows manually after CDC ord
Disable database protections and repair inconsistent rows manually after CDC ordering validation runs.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.