5440. Transactions & XA: XA participant inventory — Review the design for production readiness and required changes. — inventory — Node.js + Express + Sequelize

DBMS Published 30 Sept 2026 Updated 30 Sept 2026 0 Views Verified

Scenario: A inventory application must handle XA participant inventory. Review the design for production readiness and required changes. 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 Correct Answer

Option 1: Use a parameterized, transaction-aware MySQL 8 implementation for XA participant

Use a parameterized, transaction-aware MySQL 8 implementation for XA participant inventory, 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 2: Use unparameterized dynamic SQL and rely only on application-side validation for

Use unparameterized dynamic SQL and rely only on application-side validation for XA participant inventory.

Additional Explanation

Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.

Verified

Option 3: Disable database protections and repair inconsistent rows manually after XA part

Disable database protections and repair inconsistent rows manually after XA participant inventory runs.

Additional Explanation

Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.

Verified

Option 4: Run XA participant inventory without defining transaction boundaries, retry beha

Run XA participant inventory without defining transaction boundaries, retry behavior, or production validation.

Additional Explanation

Correctness depends on explicit invariants, safe SQL, transaction/concurrency handling and verification.