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Practice 36AdvancedSystem designAbout 18 minutes

Corresponding knowledge: Committed effects and conditional compensation in sagas

Agent has booked a hotel but the flight ticket failed. Should the hotel be automatically canceled?

Examine cross-service transactions, compensation conditions, irreversible actions, and human intervention.

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Sagacompensationaffairs

Knowledge content check2026-10-03 · Check the source of the original question2026-10-02

The knowledge corresponding to this exercise:

Committed effects and conditional compensation in sagas · Principle explanation →
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Principles and Solutions have been collapsed. Explain the core mechanism, boundaries and verification methods in your own words, and then compare them.

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Explain in your own words first

The core principles, analysis, Q&A and migration cases have been closed. When you are ready, unfold it and compare it with the content to find any omissions.

Hands-on verificationComplete on demand · Suggestions15 minutes

List the failure matrix and allowable compensatory actions for the two-step hotel and flight processes.

Expand acceptance requirements and checkpoints
  • Unknown results should be verified first
  • Charge action recheck authorization
  • Compensate for failure without pretending to be successful

Key inspections

  • Compensation is not considered a database rollback
  • Check for unknown results first
  • Compensation has authorized, idempotent and failed states