Google Global Load Balancer support for gRPC?

[mic...@improbable.io]

Hi guys,

First of all, it's great to see gRPC progressing at such a pace. It's fantastic to be able to use such a great piece of technology outside Google :)

I've tried setting up a gRPC backend behind the Google HTTP load balancer https://cloud.google.com/compute/docs/load-balancing/http/ after seeing that HTTP/2 was a first class citizen on the platform.

Unfortunately, it seems that the Google Cloud Load Balancer (GCLB) doesn't support neither health-checking nor (after hacking a HTTP1.1 healthcheck onto the server) HTTP2 forwarding.

Do you if Google has plans for GCLB to support gRPC passthrough?

Michal

Head of Infrastructure

Improbable

[Louis Ryan]

Michal,

GCLB will support HTTP2/GRPC passthrough as layer-7 LB but it won't be until sometime next year. In the meantime you can use it as a Layer-3 LB instead of as Layer-7

- Louis

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[Michal Witkowski]

Louis, thanks for the clarification. Great to hear it will be supported, sad to hear it'll be that late :-(

The one thing that L3 LB is missing is the great global drain control, which we use for controlling how traffic flows to our frontend clusters. I guess in the mean time we'll have to do with DNS for that.

[me...@go-jek.com]

Hey Louis,

Is this supported by GCLB now? and there any plans for a open source   HTTP2/GRPC layer-7 LB. 
Any suggestions ?

[Michal Witkowski]

We kinda build something gRPC specific for doing rich load balancing on L7 layer of gRPC:

https://github.com/mwitkow/grpc-proxy

It requires a forked version of gRPC-Go, but we've been successfully running this in production for a few months now.

[Louis Ryan]

Still not yet supported by GCLB. As far as OSS proxies that work you can also use nghttpx 

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[Varun Talwar]

There is a plan to add Layer-7 LB support for gRPC in GCLB by end of year.  Will keep the community posted as we get closer.

Michal, Mehak: if there are any specific requests you may have, pls email me.

Thanks

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Varun Talwar | Product Manager | varun...@google.com | 415-341-7352

[vi...@satalia.com]

Good afternoon,


We are running our gRPC server on Kubernetes cluster, and we use nghttpx as the load balancer for the services.
However, there are some drawbacks with this approach, and we'd like to use Layer-7 load balancer.
We tried using the GCLB as it accepts HTTP/2 requests, but because they are converted to HTTP/1.1 before being sent to the server the gRPC requests arrive malformed.

Do you know if GCLB will support L7 LB for gRPC, and if so do you know when we could expect this feature?

Thank you for your time,

Vito

Varun Talwar | Product Manager | varuntalwar@google.com | 415-341-7352

[Varun Talwar]

+gcp-networking@

Varun Talwar | Product Manager | varun...@google.com | 415-341-7352

[bmar...@gmail.com]

Any updated for this thread? The Google example here https://cloud.google.com/solutions/mobile/mobile-compute-engine-grpc 

which uses gRPC exclusively, at the end, points to the "setting up HTTP(s) Load Balancing" article. So that would make one

assume GCLB supports gRPC... but it's not explicit, and in fact says "The load balancer acts as an HTTP/2 to HTTP/1.1 translation layer"

which makes me believe that it would NOT work for gRPC servers that expect http/2 incoming connections. ??

+gcp-networking@

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Varun Talwar | Product Manager | varun...@google.com | 415-341-7352

[Varun Talwar]

GCLB has it on their roadmap to support http/2 to backends and add support for gRPC by Q2 this year. It is currently not supported.

Are you looking for L7 load balancing with gRPC backends?

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[bmar...@gmail.com]

I don't need anything complicated, just "here's a bunch of backends, spread the load out across them...". I'm not looking for inspection of the payloads or URLs or anything as a necessity, although admittedly that would be nice to have.

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[Samir]

Hi!

Curious if there are any updates on this as we approach the end of Q2 2017.

[Prajakta Joshi]

Please track: https://b.corp.google.com/issues/30481955 and https://ariane.googleplex.com/launch/188329

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[James Burns]

Not exactly possible for those outside of google.

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[Prajakta Joshi]

My apologies- I did not notice that the ask was from external users. At this point, the timeline is early Q3 Alpha. I will update this thread once we have a specific date.

Prajakta

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[Samir Ahmed]

Hi Prajakta,

Any update on the Q3 Alpha timeline? 

- samir

[Samir Ahmed]

Hi Prajakta,

Any update on the Q3 Alpha timeline? 

[samir...@snapchat.com]

Hi 

Any Update on the timeline for Grpc L7 support in GCLB? 

- samir 

[hpid...@halfbrick.com]

Hi,

We're also keen to see gRPC support for GCLB, particularly GCLB with IAP enabled.

- Harry

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[ian.p...@gmail.com]

Any word on first class support for grpc on GCLB?

[samuel...@gmail.com]

Any update on this, Google?

[prajak...@google.com]

Hello everyone

"HTTP/2 + gRPC to backend instances for HTTP(S) LB" is now in Alpha for Google Compute Engine (GCE). Please reach out to your Google Cloud Account managers to sign you up for Alpha. Stay tuned for Beta soon!

Regards,

Prajakta

On Saturday, January 20, 2018 at 12:02:30 PM UTC-6, samuel...@gmail.com wrote:

Any update on this, Google?

[Kailash Sethuraman]

Hi All, 

You can sign up for the alpha using this form.

Thanks,

[Kailash Sethuraman]

A reminder - please be sure to check with your Google Account Manager for approval prior to signing up.

[Fedor Korotkov]

Any news on GA of this feature? My Account Manger wasn't that helpful.

[ho...@danielvaldivia.com]

has this launched yet?

On Monday, February 5, 2018 at 11:58:07 AM UTC-8, prajak...@google.com wrote: