2018-04-16 11:03 阅读 86


I am trying to follow along this sample Hyperledger Fabric code: https://github.com/hyperledger/education/tree/master/LFS171x/fabric-material

Initially I replaced chaincode/tuna-app/tuna-chaincode.go with my go file chaincode/tuna-app/test.go. test.go had changes just in what we initialize in the ledger through its initLedger function call. It worked fine, with no changes required in tuna-app/.startFabric.sh.

Now when I again try to change the ledger through its initLedger function call, its not happening. Even if I comment the function itself, it still shows the old content of the ledger.

How do I update my chaincode with visible changes?

startFabric.sh contains the following code:

set -e

# don't rewrite paths for Windows Git Bash users

starttime=$(date +%s)

if [ ! -d ~/.hfc-key-store/ ]; then
    mkdir ~/.hfc-key-store/

# launch network; create channel and join peer to channel
cd ../basic-network

# Now launch the CLI container in order to install, instantiate chaincode
# and prime the ledger with our 10 tuna catches
docker-compose -f ./docker-compose.yml up -d cli

docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp" cli peer chaincode install -n tuna-app -v 1.0 -p github.com/test-app
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp" cli peer chaincode instantiate -o orderer.example.com:7050 -C mychannel -n tuna-app -v 1.0 -c '{"Args":[""]}' -P "OR ('Org1MSP.member','Org2MSP.member')"
sleep 10
docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp" cli peer chaincode invoke -o orderer.example.com:7050 -C mychannel -n tuna-app -c '{"function":"initLedger","Args":[""]}'

printf "
Total execution time : $(($(date +%s) - starttime)) secs ...

printf "
Start with the registerAdmin.js, then registerUser.js, then server.js


I tried by adding the following line after peer chaincode instantiate :

docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp" cli peer chaincode upgrade -o orderer.example.com:7050 -C mychannel -n tuna-app -c '{"function":"initLedger","Args":[""]}'

But it gives the following error:

Error: Chaincode version is not provided for upgrade

When I change upgrade statement to:

docker exec -e "CORE_PEER_LOCALMSPID=Org1MSP" -e "CORE_PEER_MSPCONFIGPATH=/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp" cli peer chaincode upgrade -o orderer.example.com:7050 -C mychannel -n tuna-app -v 1.0 -c '{"function":"initLedger","Args":[""]}'

Error changes to:

Error: Error endorsing chaincode: rpc error: code = Unknown desc = chaincode error (status: 500, message: version already exists for chaincode with name 'tuna-app')
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2条回答 默认 最新

  • 已采纳
    doulv8162 doulv8162 2018-04-16 17:15

    To make the changes in the chaincode made reflect, following steps were taken: 1. Stop all the containers

    docker stop $(docker ps -aq)
    1. Delete all the containers

    docker rm -f $(docker ps -aq)

    1. Find the following image when you run docker images One of the output will be this among the other hyperledger binary images.

    REPOSITORY TAG, IMAGE ID, CREATED, SIZE: dev-peer0.org1.example.com-tuna-app-1.0-b58eb592ed6ced10f52cc063bda0c303a4272089a3f9a99000d921f94b9bae9b, latest, 0919d7c15f0a, 3 minutes ago, 172MB

    Delete it using the following command:

    docker rmi 0919d7c15f0a

    Run the fabric again using ./startFabric.sh, npm install, node registerAdmin.js, node registerUser.js and node server.js. It should work

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  • donglizhan7848 donglizhan7848 2018-04-16 14:39

    I would guess you alrwady have version 1.0 installed, thats why its complaining that it already exists. Try it with 1.1 or 2.0 by using -v 2.0 instead of -v 1.0.

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