Discuss Alibaba ACA-CloudNative Exam Topic 2 Question 124

How to keep the data consistency in microservices architecture refer to microservice.io?

AUse PL/SQL Statement from RDBMS

BDatabase lock required (commit and rollback scenario)

CUse store procedure/function from RDBMS

DUse a Choreographer and Event Bus. In the failed scenario in a service, a Choreographer will use event bus to cancel all the communications among services related.

Suggested Answer: D

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20 comments · newest first

Annamae 2 months ago

I feel like D really addresses the complexity of microservices.

Coral 2 months ago

D ensures better communication and consistency.

Abel 2 months ago

B could lead to bottlenecks. Locks aren't ideal.

Xenia 3 months ago

A and C seem outdated. We need modern solutions.

Brandee 3 months ago

I agree, D is more flexible for microservices.

Keshia 3 months ago

I think option D is the best. Choreography helps manage failures.

Sherron 3 months ago

Totally agree with D, event-driven is the future!

Marilynn 3 months ago

Wait, can a Choreographer really handle all that? Sounds risky!

Gerri 3 months ago

I think B can lead to bottlenecks.

Catherin 4 months ago

A and C are outdated methods, though.

Jessenia 4 months ago

D is the way to go for microservices!

Fletcher 4 months ago

Totally agree with D, it’s more scalable!

Dick 4 months ago

Wait, can a Choreographer really handle all that?

Filiberto 4 months ago

I think B could lead to bottlenecks.

Fausto 6 months ago

A and C are outdated methods for this.

Celeste 6 months ago

D is the best approach for microservices!

Maia 7 months ago

I recall that using PL/SQL or stored procedures might not align with microservices principles, but I can't remember the exact reasons.

Zana 7 months ago

I’m a bit confused about the database lock scenario. I feel like it could lead to bottlenecks in a microservices setup.

Alesia 7 months ago

I think option D sounds familiar; we practiced a similar question about event-driven architecture and how it helps maintain data consistency.

Fredric 7 months ago

I remember we discussed the importance of eventual consistency in microservices, but I'm not sure if using a Choreographer is the best approach.

Alibaba ACA-CloudNative Exam - Topic 2 Question 124 Discussion