SAGA | Microservices Architecture Patterns | Tech Primers

This video covers 2 different SAGA patterns - Choreography and Orchestration

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#Microservices #SAGA #TechPrimers

[tirupatirao]

Got selected in an interview only by explaining to this one question bcz of this 👌

[shivraj]

Nice and clean explanation. What we see across multiple forums is explanation on Saga. But not coding example. Would be nice to see coding example for the same example.
The two components to see in coding example will be
1. how microservices handle multithreading (specially for crud operations assuming every microservice has its own database)
2. How data consistency is maintained across these 4 microservices (as per example in video). This one has two elements - first one being every microsrvice has its own database and second one being all have shared database.

[rahulvutukuri]

much needed video, since i have been searching how a client request is deserialized and executed by multiple micro services

[Tommy-ddpz]

Great video, clearly explained how each microservices interact with each other, better than a lot of other materials I find on the internet

[growtogether]

There are two points which needs to be added here: 1. In Choreography pattern how the failures are handled 2. In case of Orchestration pattern the request will not come to order-service the request will come to Orchestration service.

[ngneerin]

Thanks Tech Primer for the tutorial. Would appreciate more content around microservices

[mr-black_rock]

orchestrator pattern introduce the high degree of coupling . please let us explain how compensation event would process ?

[redusuda]

How to handle failures in these patterns, how you will define compensating events

[Javoke]

Your explanation was flawless! Thanks in advance for sharing your knowledge

[muraliable]

good explanaion about those patterns but motivation is missing. Also in orchestration pattern, does Orchestrater makes sync api call to each service and gets the response or it sends an event and receives an event as a response?

[paraglohiya]

1. There is a mistake Orch Pattern. The Main controller will get first trigger and from there it will call other services as per state change. Order service can't be input.

Also your diagram for Choreography is incorrect. You never showed Event bus connection.

[puneetsaneja]

Hi. I have few queries on SAGA. Please help me to answer .

1. Here you cover only happy path, if everything works well. What if payment failed. How they roll back from the order services.
2. Do it maintain lock at database level. Say in ecommerce application, i have 5 inventory in stock but 10 users are buying at the exactly same time. ? How data consitency are maintained ?

[MikeNoli]

Very clear, it 'd be great to develop an example with lambdas/spring cloud in AWS

[sumitbabel]

I think it’s wrong, SEC is associated to choreograph and not orchestrate .. I think you explanation is correct for choreography and not orchestrating, because in orchestration each service is responsible for its own compensation, please correct me if I am wrong as other blogs says different

[javisartdesign]

well explained! I would talk about distributed transactions and compensation operations for the rollbacks.

[jasper]

Fantastic explanation. Thanks so much. Can you please show this at code level? It would been better to see it in action.

Nicely explained SAGA pattern, Can you explain what is the proper way to handle transaction across the distributed micro services?

[jka]

Nice explanation and good to learn. Nice Bro

[rajivraghu]

Super.. can you do a video on the coding for the same using SAGA pattern

[danielquirospicado]

Why in the Orchestration option the initial request is not sent to the orchestration service instead of the order service?