Spring-cloud-netflix: Any plan to upgrade to Zuul 2

[surajrrao]

Any plan to upgrade to Zuul 2

[spencergibb]

Zuul 2 has not been released. It will not be a simple upgrade when it is. We'll consider it when it is released.

[ghost]

Zuul 2 has now been released (based on https://github.com/Netflix/zuul/issues/298), so are there any plans to support it in the foreseeable future?

[spencergibb]

We have no plans to integrate zuul 2

[sharmasourabh]

Hi @spencergibb
Spring Cloud is not going to support future versions of all Netflix libraries like Eureka etc or only Zuul? Is there any publish plan or road map that gives us this information?
Thanks.

[ryanjbaxter]

@sharmasourabh this is only a statement regarding Zuul, it does not effect any other Spring Cloud components.

[sharmasourabh]

Thanks @spencergibb for confirming.

[TomCools]

Any chance to get a motivation why Zuul 2 Spring Cloud isn't happening? Is it because of the very different non-blocking i/o?

[ghost]

That would be good to know. I understand Zuul 2 is completely different and it won't be trivial to integrate it with the other Spring Cloud components, but Zuul 1's lack of support for websockets, server sent events, HTTP/2 makes it less and less suitable for modern applications.

[juergenzimmermann]

IMHO the new Spring Cloud Gateway looks promising.

[spencergibb]

http://slides.com/spencer/spring-cloud-gateway

[sharmasourabh]

I hope, Spring Cloud Gateway performance is/would improved down the line.
As shown in this performance comparison: https://engineering.opsgenie.com/comparing-api-gateway-performances-nginx-vs-zuul-vs-spring-cloud-gateway-vs-linkerd-b2cc59c65369

[spencergibb]

That is outdated

[gihad]

It would be great to get some reasonable responses to the questions in this issue:

Q: "Any chance to get a motivation why Zuul 2 Spring Cloud isn't happening? Is it because of the very different non-blocking i/o?"

Q: " hope, Spring Cloud Gateway performance is/would improved down the line.
As shown in this performance comparison: https://engineering.opsgenie.com/comparing-api-gateway-performances-nginx-vs-zuul-vs-spring-cloud-gateway-vs-linkerd-b2cc59c65369"
A: "That is outdated"

Is there an up to date benchmark available?

[gihad]

Thinking a bit more about it, since I saw the early version of Spring Webflux and that Spring was creating their own non-blocking async programming model I started doubting that Zuul2 was ever gonna be a part of future Spring versions, it makes sense.

I've also been waiting for Spring Webflux to become performant to use it in my apps instead of Vert.x for async non-blocking. The benchmarks in general for Spring Webflux shows low performance compared to other modern concurrency models for the JVM.

Since spring-cloud-gateway uses Spring Webflux as the underlining tech it seems reasonable that it doesn't have the greatest performance yet. So now we just need to wait until this catches up.

At the end of the day it will be nice to have a "Gateway" that is even more integrated into the spring ecosystems and leverages existing Spring components.

[spencergibb]

Someone redid the benchmarks on Twitter and https://github.com/spencergibb/spring-cloud-gateway-bench. There's a gateway issue to track it, no sense talking about it here.

[spencergibb]

See https://www.youtube.com/watch?time_continue=1037&v=9wocKqF15B8 for motivations.