GRPC with PHP Dns Issue - (DNS resolution failed)

[Arjun Me]

Hi,

I am using windows 10 and I have installed Ubuntu in the Hyper-v. I have setup the GRPC with php and it was working fine. But When I tried to connect to the remote server. I am getting this error.

Request:

client.getDatesById( {
    nests: '21',
    topics: '82312',
    products: ['186599']
}, printReply)

Error:  { Error: 14 UNAVAILABLE: DNS resolution failed
    at Object.exports.createStatusError (/usr/lib/node_modules/grpcc/node_modules/grpc/src/common.js:91:15)
    at Object.onReceiveStatus (/usr/lib/node_modules/grpcc/node_modules/grpc/src/client_interceptors.js:1209:28)
    at InterceptingListener._callNext (/usr/lib/node_modules/grpcc/node_modules/grpc/src/client_interceptors.js:568:42)
    at InterceptingListener.onReceiveStatus (/usr/lib/node_modules/grpcc/node_modules/grpc/src/client_interceptors.js:618:8)
    at callback (/usr/lib/node_modules/grpcc/node_modules/grpc/src/client_interceptors.js:847:24) code: 14, metadata: {}, details: 'DNS resolution failed' }

FYI: I am a beginner to GRPC and this DNS resolution issue is blocking me to move forward.

Also I found out in some blogs, they have asked to add this "GRPC_DNS_RESOLVER=native". I don't where I need to add this. Also I like to know whether this solve the issue.

Could you please help me in fix this issue

[Stanley Cheung]

You mention PHP as a client, but the errors are from Node. Was your client written in Node? Where does PHP come in?

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[Arjun]

Hi Stanley,

Actually php is the client. I got the same issue in php. So I have tried with grpcc gui to post the request to the server to confirm that there is no problem with my php code.

[Arjun Me]

Now I am using the GRPcc tool and its also giving the same error (GRPC SERVER: https://service-grpc.com:8090)

grpcc --proto our-api.proto --address https://service-grpc.com:8090

[Stanley Cheung]

What is this service-grpc.com?

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[Arjun]

Hi,

This is a grpc service hosted with https and self signed certificate( it’s not a real url and my real url is similarly like this)