Hyper Fabric Error CONNECTION FAILED Description dialing connection timed out

Question

 This is my code:

    ctxCh := sdk.ChannelContext("mychannel", fabsdk.WithUser("user1"))
    chClient, err := channel.New(ctxCh)
    if err != nil {
        log.Fatalln("error from New channel", err)
    }

    req := channel.Request{
        ChaincodeID: "fabcar",
        Fcn:         "createCar",
        Args:        [][]byte{[]byte("CAR10"), []byte("Honda"), []byte("Accord"), []byte("Black"), []byte("Tom")},
    }
    resp, err := chClient.Execute(req)
    if err != nil {
        log.Fatalln("error from Execute =", err)
    }

I get this error:

calling orderer 'orderer.example.com:7050' failed: Orderer Client Status Code: (2) CONNECTION_FAILED. Description: dialing connection timed out [orderer.example.com:7050]

my config.yaml

channels:
  # name of the channel
  mychannel:
    orderers:
      - orderer.example.com

orderers:
  orderer.example.com:
    url: grpc://localhost:7050

    # these are standard properties defined by the gRPC library
    # they will be passed in as-is to gRPC client constructor
    grpcOptions:
      ssl-target-name-override: orderer.example.com

    tlsCACerts:
      # Certificate location absolute path
      path: ./crypto-config/ordererOrganizations/example.com/tlsca/tlsca.example.com-cert.pem

Any ideas?

Answer 1

The mapping is not set up right. Add to config.yaml

entityMatchers:
 orderer:
   - pattern: (\w+).example.(\w+)
     urlSubstitutionExp: grpc://localhost:7050
     sslTargetOverrideUrlSubstitutionExp: orderer.example.com
     mappedHost: orderer.example.com

to map grpc://localhost:7050 to orderer.example.com

Comments

It does not work for me.

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Hi, @There,

Could you please post your workaround here so that it will be easy for us to resolve your query asap? What error you are facing? Kindly post that!