Hyperledger Fabric issue orderer client failed to connect to orderer xxx net 7050 failed to create new connection

+4 votes

Docker-composer -base.yaml configuration file, where the domain name I marked Mosaic

Cli error log orderer client failed to connect to orderer. XXX: xx:7050: failed to create new connection: context deadline exceeded




I can communicate with Orderer in cli

The orderer error message log

Yun is running fine, but an error occurred while creating the channel bothered me for a few days, asking the guys for help.

Nov 2, 2018 in Blockchain by gujiwork
• 200 points
Hey @gujiwork! Are you doing this on VM? Could you mention the steps you followed (preferably with the commands)?

I deployed fabric on vm, and I broke all the services up and deployed them independently to each vm.

I started an orderer node, four Peer nodes, and encountered an error when I executed the create channel in the peer0 cli container

The command to create the channe

docker exec -it cli bash


peer channel create -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/mychannel.tx --tls --cafile $ORDERER_CA

2 answers to this question.

+3 votes
Best answer

Hey @gujiwork,

Try making the following changes:
docker-compose-base.yaml and docker-compose-orderer:

working_dir: /opt/gopath/src/github.com/hyperledger/fabric/orderer

- ./config/:/etc/hyperledger/configtx 
- ./crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/:/etc/hyperledger/msp/orderer
- ./crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/:/etc/hyperledger/msp/peerOrg1


Under cli:

command: /bin/bash

And also, the command you are using to create channel is:

peer channel create -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/mychannel.tx --tls --cafile $ORDERER_CA

You have mentioned in your question

where the domain name I marked Mosaic

so I am guessing your domain name is not orderer.example.com but you are using orderer.example.com:7050 in your command. Try replacing it with your domain.

answered Nov 5, 2018 by Omkar
• 69,150 points

selected Nov 8, 2018 by gujiwork

Thank you. The problem has been solved. Now there is a new error

This indicates success, and the prompt when instantiating chain code:

Error: could not assemble transaction, err proposal response was not successful, error code 500, msg error starting container: error starting container: API error (400): OCI runtime create failed: container_linux.go:348: starting container process caused "exec: \"chaincode\": executable file not found in $PATH": unknown

  • The order I executed at peer0

  • # docker exec -it cli bash

    # peer chaincode install -n mycc -v 1.0 -p  github.com/hyperledger/fabric/chaincode/go/example02

    2018-11-06 08:25:20.092 UTC [chaincodeCmd] install -> INFO 051 Installed remotely response:<status:200 payload:"OK" >

    # ORDERER_CA=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations


    peer chaincode instantiate -o orderer.xxxx.net:7050 --tls $CORE_PEER_TLS_ENABLED --cafile $ORDERER_CA -C mychannel -n mycc -v 1.0 -c '{"Args":["init","a","100","b","200"]}' -P "OR    ('Org1MSP.member','Org2MSP.member')"

    Error: could not assemble transaction, err proposal response was not successful, error code 500, msg error starting container: error starting container: API error (400): OCI runtime create failed: container_linux.go:348: starting container process caused "exec: \"chaincode\": executable file not found in $PATH": unknown

    Orderer logs

    2018-11-06 17:00:25.126 CST [orderer/common/server] Broadcast -> DEBU 85d Starting new Broadcast handler
    2018-11-06 17:00:25.126 CST [orderer/common/broadcast] Handle -> DEBU 85e Starting new broadcast loop for
    2018-11-06 17:00:28.056 CST [orderer/common/broadcast] Handle -> WARN 85f Error reading from rpc error: code = Canceled desc = context canceled
    2018-11-06 17:00:28.056 CST [orderer/common/server] func1 -> DEBU 860 Closing Broadcast stream

When I try to

peer chaincode install -n feiba1 -v 1.0 -p  github.com/hyperledger/fabric/chaincode/go/example02

change to

peer chaincode install -n feiba1-v 1.0 -p  github.com/hyperledger/fabric/chaincode/go/example02/cmd

Execute the instantiated chain code

Error starting chaincode: error trying to connect to local peer: context deadline exceeded

Hey again @gujiwork! 

Try changing 




If it doesn't work, 

go to the directory: github.com/hyperledger/fabric/chaincode/go/example02

execute: go build

then run:

CORE_CHAINCODE_ID_NAME=mycc CORE_PEER_ADDRESS:peer0.org1.XXXX:7051 ./example02

Also check if commenting out CORE_PEER_LISTENADDRESS works

Seems like GO environment variables are not set right. I'd suggest you uninstall GO and install it again (only changing the environment variables will also work.)

Refer: https://nats.io/documentation/tutorials/go-install/

Then try this:

go to the directory: 


execute: go build

then run:

CORE_PEER_ADDRESS:peer0.org1.XXXX:7051 ​CORE_CHAINCODE_ID_NAME=mycc:0 ./example02

if it doesnt work, try:

CORE_PEER_ADDRESS:peer:7051 ​CORE_CHAINCODE_ID_NAME=mycc:0 ./example02

if it doesnt work, try:

CORE_PEER_ADDRESS:peer:7052 ​CORE_CHAINCODE_ID_NAME=mycc:0 ./example02

If these do not work, please refer these steps and compare it with what you have done: 


Make sure you change the name of directories, and path accordingly. 

change to docker-compose-cli.yaml

- CORE_PEER_ADDRESS=peer0.org1.xxxx.net:7051


Any update on this? Did you find a solution?
Yes, I found a solution.
What solution worked for you?
I defined the network in each peer yaml file and connected to each other through ovarlay , Key parameter external: true

    external: true
Since I did not use this parameter before, the default network is automatically created when I start fabric peer

Although I can make network ping Telnet communication through hosts, I cannot instantiate the chain code

I learned from the error that the IP address and my overlay network address were not available, plus the parameter fabric will start when Call external network , And thank you for your help

Any idea why CORE_PEER_ADDRESS=peer0.org1.xxxx.net:7051 was not working?

Have you tried echoing $CORE_PEER_ADDRESS in the container without any output? Or you can set CORE_PEER_ADDRESS = peer0.org1.xxxx.net:7051 directly in the cli container.
Hey.. How did you make the network ping Telnet Communication through hosts? I am not able to find the right steps
You can check if /etc/hosts has the corresponding IP hostname, or you can set docker to the same network, that is, cross-host communication so that they can communicate with each other. The reason I encounter the inability to communicate is usually that the firewall blocks them. Can you post your log information so that I can know the reason more clearly
Thanks @gujiwork! I had followed the same steps but I missed out disabling firewall. Your answer saved me a lot of time. I disabled the firewall and was able to ping. Thanks a ton!!
Hello Sir. Can you please explain what will happen when you echo $CORE_PEER_ADDRESS without any output? I am new to hyperledger and not understanding the logic behind this. Please
+1 vote

Could be due to docker conflicts, remove docker containers with the following command:

$ docker rm -f $(docker ps -aq) && docker rmi -f $(docker images | grep dev | awk '{print $3}') && docker volume prune

Then restart the network:

./byfn.sh down
./byfn.sh generate
./byfn.sh up
answered Apr 23, 2019 by Nick
Hey. This helped solve the error but now I am getting some error related to binaries.
Hey @Guru, could you please mention the error logs?

You can install the binaries as follows @Guru:

Open a terminal and go to the fabric-samples directory and the below command:

curl -sSL http://bit.ly/2ysbOFE | bash -s 1.2.0
You're the man...!!

Thanks Nick

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