Grpc-java: Examples of serving HTTP 1 request with servers running GRPC?

Created on 9 Mar 2016 · 9Comments · Source: grpc/grpc-java

Hi,

Is there a example of using grpc/underlay netty to serve HTTP1/1 on the same port?

Cheers.

Source

thefallentree

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We actually have a similar need because we run gRPC based services on Google Container Engine and utilize their managed load balancer which uses HTTP health checks by default. This poses a challenge since the load balancer expects to hit the same port to do its HTTP health check. Are there plans to do something similar like https://github.com/grpc/grpc-go/pull/514? If not what is the recommended approach for handling HTTP based health checks?

kuroneko25 on 5 Oct 2016

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No, we don't provide such an example and it isn't really much of a supported use-case at present. I do know it is possible, but it is a bit tricky and not something I would generally encourage.

Longer-term, with some upstream Netty API changes we would hope to support more advanced Netty use-cases, for example, by providing a GrpcHandler.

ejona86 on 9 Mar 2016

Thanks,

We are currently using jetty to serve http needs, and grpc for rpc part. Would there be a problem other than having two I/O stack running at the same time? (maybe there is even advantage of that )

thefallentree on 10 Mar 2016

Having both running shouldn't be too much of a problem. You'll need to configure a port for it to run on, which may be a little annoying, but everything should function.

ejona86 on 10 Mar 2016

This seems to be resolved.

ejona86 on 19 Apr 2016

kuroneko25 on 5 Oct 2016

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@kuroneko25, I'd recommend you run an HTTP server on a different port. Sharing with HTTP is a complicated target, and it's a bit unclear where we'll end up (it depends some on the performance of netty/netty#3667 and how we utilize it in grpc)

ejona86 on 7 Oct 2016

Any news on this front? Also would like to expose the REST and grpc endpoints on the same port. Thanks