And, is there something preventing the GAE standard instances from accessing grpc services? The GAE instances would behave as clients rather than servers. I'm thinking in this case to Google Cloud Spanner...
The main reason, why gRPC support is not available for App Engine flexible environment as yet, is related to the presence of the load balancer. In fact one may say that gRPC would be supported, were it not for the fact that the GAE load balancer prevents such requests to reach the instances.Engineers are keenly aware of the need to provide GAE access for gRPC requests, and actively working to implement such access. For the time being, your can use Compute Engine instances sitting behind a network load balancer with an autoscaler. This approach amounts to creating your own App Engine service.
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GAE instances run in a managed environment, where load balancing is provided behind the scenes. Routing remote procedure calls in GAE should prove equally difficult, or more, than in the flex environment.
And, is there something preventing the GAE standard instances from accessing grpc services? The GAE instances would behave as clients rather than servers. I'm thinking in this case to Google Cloud Spanner...
Le mar. 21 févr. 2017 16:48, 'George (Cloud Platform Support)' via Google App Engine <google-appengine@googlegroups.com> a écrit :
The main reason, why gRPC support is not available for App Engine flexible environment as yet, is related to the presence of the load balancer. In fact one may say that gRPC would be supported, were it not for the fact that the GAE load balancer prevents such requests to reach the instances.Engineers are keenly aware of the need to provide GAE access for gRPC requests, and actively working to implement such access. For the time being, your can use Compute Engine instances sitting behind a network load balancer with an autoscaler. This approach amounts to creating your own App Engine service.
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GAE instances run in a managed environment, where load balancing is provided behind the scenes. Routing remote procedure calls in GAE should prove equally difficult, or more, than in the flex environment.
gRPC is meant for mobile applications and similar apps playing the role of clients. What use case do you have in mind, involving Cloud Spanner and cloud deployed apps, exactly? Why would this scenario represent the best solution?On Tue, Feb 21, 2017 at 12:28 PM, Ivo Bellin Salarin <ivo.bell...@gmail.com> wrote:
And, is there something preventing the GAE standard instances from accessing grpc services? The GAE instances would behave as clients rather than servers. I'm thinking in this case to Google Cloud Spanner...
Le mar. 21 févr. 2017 16:48, 'George (Cloud Platform Support)' via Google App Engine <google-a...@googlegroups.com> a écrit :
The main reason, why gRPC support is not available for App Engine flexible environment as yet, is related to the presence of the load balancer. In fact one may say that gRPC would be supported, were it not for the fact that the GAE load balancer prevents such requests to reach the instances.Engineers are keenly aware of the need to provide GAE access for gRPC requests, and actively working to implement such access. For the time being, your can use Compute Engine instances sitting behind a network load balancer with an autoscaler. This approach amounts to creating your own App Engine service.
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AFAIK, gRPC is not just meant to be used by mobile apps. gRPC means also huge performance improvements when compared to a classical http REST api.In my understanding, this is probably the reason for which the `google-cloud-spanner` python module (the spanner client library for the python runtime) uses gRPC ONLY to route its requests. As well, this means that this type of client libraries are unsupported on GAE standard.Since I have been able to execute the google-cloud-spanner module locally (with a dirty hack), I wanted a more precise explanation of what's wrong with gRPC on GAE standard.
Thanks a lot for yours, it's clearly a dead end for my cloud-spanner POC using the `google-cloud-spanner` module. I can't do nothing more than wait for keenly aware engineers :) apart from that, the `google-cloud-spanner` module is so pleasureful to use that I have decided to use the same interface for my HTTP REST API based implementation. :-)
Le mar. 21 févr. 2017 à 19:28, 'George Suceveanu' via Google App Engine <google-appengine@googlegroups.com> a écrit :
GAE instances run in a managed environment, where load balancing is provided behind the scenes. Routing remote procedure calls in GAE should prove equally difficult, or more, than in the flex environment.
gRPC is meant for mobile applications and similar apps playing the role of clients. What use case do you have in mind, involving Cloud Spanner and cloud deployed apps, exactly? Why would this scenario represent the best solution?On Tue, Feb 21, 2017 at 12:28 PM, Ivo Bellin Salarin <ivo.bell...@gmail.com> wrote:
And, is there something preventing the GAE standard instances from accessing grpc services? The GAE instances would behave as clients rather than servers. I'm thinking in this case to Google Cloud Spanner...
Le mar. 21 févr. 2017 16:48, 'George (Cloud Platform Support)' via Google App Engine <google-appengine@googlegroups.com> a écrit :
The main reason, why gRPC support is not available for App Engine flexible environment as yet, is related to the presence of the load balancer. In fact one may say that gRPC would be supported, were it not for the fact that the GAE load balancer prevents such requests to reach the instances.Engineers are keenly aware of the need to provide GAE access for gRPC requests, and actively working to implement such access. For the time being, your can use Compute Engine instances sitting behind a network load balancer with an autoscaler. This approach amounts to creating your own App Engine service.
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