الكتابة المزدوجة وبدائلها

في هذا الدرس

explain why dual writes corrupt data and what to do instead.

الموضوعات المخطط لها

• Two writes to two systems cannot be atomic; a failure in between leaves them different.
• Retries, ordering, and races create drift that is hard to detect.
• Alternatives: single writer, CDC from the owner, outbox plus events.
• If a temporary dual write is unavoidable, add reconciliation and a deadline.