Spring Cloud Hystrix Circuit Breaker with spring boot | Java Techie

This video will explain you how to use Hystrix circuit breaker to cascading failure and how to prevent it
#JavaTechie #Hystrix #SpringBoot #Microservice
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[@gopisambasivarao5282]

Thanks Basant, appreciate your efforts.

[@subhajitbhattacharjee007]

Excellent tutorial. Thanks Java techie. Keep going ❤

[@gitalidutta5836]

Excellent tutorial ... Keep up your good work !!!

[@Mohamed-uf5jh]

Great job , I like that , thanks!

[@danielmiddepogu5940]

Excellent explaination

[@namanmandli]

Good Explanation....Thank you...

[@sanjaypattnaik3288]

Thank you for the tutorial

[@divinity5250]

Thanks a ton!!

[@sanketh768]

But we can do the same thing with try catch block right?
in the exception block we can return a vaild response or maybe even a controller advice will work right?

[@nasirkhansirajbhai8016]

Yes. but..
1. handling business logic inside try-catch is anti-pattern.
2. your business logic spread across different parts of your code. (not easy to maintain)
3. you will create boilterplate code just to handle error scenarios.
4. Fallback is not the only feature supported by hystrix. It supports alerting, monitoring etc.. to make our application more resilient

[@BrijeshLochan]

Nice explanation! But this is not an example of Hystrix circuit breaker design pattern. This is just fallback functionality from Hystrix.

[@Javatechie]

Hi Brijesh This is just basic

[@jashirchirreescate3308]

change the name to basic hystrix or fallback functionality . dont use "circuit breaker"

[@Javatechie]

Thanks jashir for your suggestion , going forward I will take care this

[@user-yn9wj9dp6s]

10/10 compa

[@kishordige9721]

Thank you

[@saktiranjanbehera7010]

thanks bro

[@dipakdas2]

Fallback sends a generic message. How to configure so hystrix identifies which service (email/payment) is down ?

[@Javatechie]

I will prepare a video about resilience4J.
Actually hystrix is not supported by spring boot it's in maintenance mode .

[@sureshmanne7245]

What is the use of attributes 'groupKey' and 'commandKey' in 'HystrixCommand' annotation?

[@rakeshroshan9690]

in this case for fault handling we are hit service at single attempt. Is there any configuration so we hit 10 times service internally then if fail occurs show fault message ?

[@Javatechie]

You can configure spring retry mechanism

[@avijitsharma5050]

13:36 hystrix annotations used

[@sarojsahoo8763]

One more thing in my case I have two method one is for returning Success response from external service and one is for handling exception I mean fallback method. I am getting Success response in debug but when response is getting back to caller method I am not able to see the response object with value I mean response is null . In logs I am able to see the call to both the methods I mean Success as well as failure method.

[@Javatechie]

Saroj hystrix is for to handel the fault.
Like If your external service is failing then that fault will be propagate to fallback.
If you are getting null means we can't handle that using hystrix. Better to add null check

[@manojkumar8358]

@@Javatechie Please tell on how to add junit test case for fallback method

[@sarojsahoo8763]

Can Hystrix can be used in a non microservice application?

[@Javatechie]

Saroj yes we can use

[@sarojsahoo8763]

So This fallback method is just like Container call back method it will be called automatically by Hystrix

[@vrindavan.brajwasi]

I am using parent version 2.6.4 in this version showing error like this so could u pls tell me what is the reason behind that.......
Error:
Failed to process import candidates for configuration class [com.mukund.A1BookMyShowServiceSbhcbApplication]; nested exception is java.io.FileNotFoundException: class path resource [org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfiguration.class] cannot be opened because it does not exist

[@Javatechie]

Hystrix no longer supported by spring boot community please use resilience4J

[@Javatechie]

czcams.com/video/b6R4dElDtRc/video.html

[@veeracharyuppula9983]

can you provide the code