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Call dropped by load balancing policy #82

chemidy opened this Issue Oct 26, 2017 · 1 comment


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chemidy commented Oct 26, 2017


I am trying to do a GRPC Call on Google Cloud Platform and i have a Call dropped by load balancing policy Error

On My local network it works, with a grpc server in golang.
On Google Cloud Platform we are using, TCP Load Balancer in front of gRPC Google endpoint and our golang backend is deployed with Google Container Engine.

With a Go Client on GCP it works.
With grpcc a NodeJS Client on GCP it works.
With grpc-swift on Iphone it fails with this trace :

response = {Swift.Optional<Packets.Api_GetLineResponse>} nil result = {gRPC.CallResult} status 2: Call dropped by load balancing policy statusCode = {Swift.Int} 2 statusMessage = {Swift.Optional<Swift.String>} “Call dropped by load balancing policy” resultData = {Swift.Optional<Foundation.Data>} nil initialMetadata = {Swift.Optional<gRPC.Metadata> | 0x1c02393e0} 0x00000001c02393e0 trailingMetadata = {Swift.Optional<gRPC.Metadata> | 0x1c0039500} 0x00000001c0039500 handler = {Swift.Optional<() -> ()> | 0x104e43828} Optional((Function))
Any idea ?


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timburks commented Nov 15, 2017

@muxi, do you have any perspective on this?

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