5859. Proxy & Routing: routing rollback — Build success, failure, concurrency and scale tests. — School ERP — Go database/sql
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Scenario: A School ERP application must handle routing rollback. 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
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Option 1: Run routing rollback without defining transaction boundaries, retry behavior, or
Run routing rollback without defining transaction boundaries, retry behavior, or production validation.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.
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Correct Answer
Option 2: Use a parameterized, transaction-aware MySQL 8 implementation for routing rollba
Use a parameterized, transaction-aware MySQL 8 implementation for routing rollback, 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 routing rollback.
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 routing
Disable database protections and repair inconsistent rows manually after routing rollback runs.
Additional Explanation
Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.