Design Microservices Architecture with Patterns and Principles - Problem: Dual Write Problem

Design Microservices Architecture with Patterns and Principles - Problem: Dual Write Problem

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

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The video tutorial discusses the dual write problem, which occurs when an application needs to change data in two different systems, such as a database and a message queue. This can lead to inconsistent states if one of the writes fails. The tutorial provides an example using microservices and explains why solving dual write problems is challenging. It also explores solutions like the transactional outbox pattern and change data capture (CDC) to avoid these issues in microservices.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the dual write problem and how does it occur in microservices?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the consequences of a dual write problem in a system.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the typical case when using local transactions with external systems.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the potential solutions to avoid the dual write problem in microservices?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How do distributed transactions help in avoiding dual write problems?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the transactional outbox pattern and how does it relate to dual write problems?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the challenges of using two-phase commit protocols in microservices.

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