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126 questions, 454 terms and 400 topics in 20 areas.

4 results for “Outbox”

Terminology · 1

Outbox Pattern

Writing an outgoing message into a table in the same transaction as the business change, and relaying it to the broker separately, so the two cannot diverge.

Architecture Patterns

Questions · 2

quiz

A service writes to its database and then publishes an event to Kafka. Sometimes consumers see an event for a record that does not exist, and sometimes a record exists with no event. Why, and how do you fix it?

What the interviewer is testing Recognition of the dual write problem — one of the most common defects in event driven systems and one that testing rarely catch

Data Architecture quiz

Your search index and your database disagree — some products appear in search that were deleted, and some new ones never appear. How do you make this reliable?

Why it drifts Almost always a dual write : the application writes to the database and then to the search index as two independent operations. One can succeed an

Polyglot Persistence

Topics · 1

topic

Outbox

Making the event atomic with the business write it describes.

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