hyperledger-fabric

问题 I have deployed hyperledger fabric on aws ec2 instances. peer0.sales.billerxchange.com (ec2 instance 1) peer1.sales.billerxchange.com (ec2 instance 2) peer0.employee.billerxchange.com (ec2 instance 3) peer1.employee.billerxchange.com (ec2 instance 4) ca.sales.billerxchange.com (ec2 instance 5) ca.employee.billerxchange.com (ec2 instance 6) orderer.billerxchange.com (ec2 instance 7) all peers,ca and orderer are deployed on seperate instances and managed by docker swarm and deployed on docker

问题 I'm trying to build a Hyperledger Fabric network with the following Smartforce[Orderer Org] Falcon.io [ORG1] Frost.io [ORG2] I have generated all cryptographic materials using cryptogen tool. now looking to build gensis block using configtxgen tool. Here is configtx.yaml : Profiles: TwoOrgOrdererGenesis: Orderer: <<: *OrdererDefaults Organizations: - *Smartforce Consortiums: SampleConsortium: Organizations: - *BusinessPartner1 - *BusinessPartner2 TwoOrgChannel: Consortium: SampleConsortium

问题 I'm trying to build a Hyperledger Fabric network with the following Smartforce[Orderer Org] Falcon.io [ORG1] Frost.io [ORG2] I have generated all cryptographic materials using cryptogen tool. now looking to build gensis block using configtxgen tool. Here is configtx.yaml : Profiles: TwoOrgOrdererGenesis: Orderer: <<: *OrdererDefaults Organizations: - *Smartforce Consortiums: SampleConsortium: Organizations: - *BusinessPartner1 - *BusinessPartner2 TwoOrgChannel: Consortium: SampleConsortium

问题 When a chaincode is invoked, is there a way to call a REST API (external) so that the client application can be notified on the new transaction. Apart from REST, is there any other option? 回答1: It's better to use events https://github.com/hyperledger/fabric/blob/master/docs/protocol-spec.md#35-events Validating peers and chaincodes can emit events on the network that applications may listen for and take actions on. There is a set of pre-defined events, and chaincodes can generate custom

问题 I am new to Hyperledger Fabric and would like to understand these terms with a real-world use case. Let's say we are building a Healthcare Blockchain Network with multiple Hospitals. Each Hospital has its own set of Doctors and Patients. For simplicity lets assume there are two hospitals, Hospital A and Hospital B. So does this mean Hospital A is one organization and Hospital B is another Organization? In this case, what is a peer? Are participants (Doctor, Patient etc) individual peers?

问题 Background: I modified the /examples/e2e_cli/ from Hyperledger-fabric and get this error message when running the end to end script.sh Error: endorsement failure during query. response: status:500 message:"make sure the chaincode mycc has been successfully instantiated and try again: getccdata mychannel/mycc responded with error: could not find chaincode with name 'mycc'" The chaincode is correctly instantiated. What could actually be causing this error? 回答1: This Jira ticket documents the

问题 Background: I modified the /examples/e2e_cli/ from Hyperledger-fabric and get this error message when running the end to end script.sh Error: endorsement failure during query. response: status:500 message:"make sure the chaincode mycc has been successfully instantiated and try again: getccdata mychannel/mycc responded with error: could not find chaincode with name 'mycc'" The chaincode is correctly instantiated. What could actually be causing this error? 回答1: This Jira ticket documents the

问题 I've followed 2 different tutorials https://github.com/swetharepakula/Fabric101Workshop and https://hyperledger-fabric.readthedocs.io/en/release-2.0/deploy_chaincode.html. Both times when I query installed it shows fabcar is installed and it commits successfully, but in both when I try to invoke I receive the following: Error: endorsement failure during invoke. response: status:500 message:"make sure the chaincode fabcar has been successfully defined on channel mychannel and try again:

问题 I'm running sample tutorial from https://hyperledger-fabric.readthedocs.io/en/release-1.4.html, trying to run the "Build Your First Network" ./byfn.sh. Network generation works fine, but when I try to up the network, i receive the following error: $cd..../fabric-samples/first-network $./byfn.sh generate $./byfn.sh up Starting for channel 'mychannel' with CLI timeout of '10' seconds and CLI delay of '3' seconds Continue? [Y/n] y proceeding ... LOCAL_VERSION=1.4.1 DOCKER_IMAGE_VERSION=1.4.1

问题 I'm running sample tutorial from https://hyperledger-fabric.readthedocs.io/en/release-1.4.html, trying to run the "Build Your First Network" ./byfn.sh. Network generation works fine, but when I try to up the network, i receive the following error: $cd..../fabric-samples/first-network $./byfn.sh generate $./byfn.sh up Starting for channel 'mychannel' with CLI timeout of '10' seconds and CLI delay of '3' seconds Continue? [Y/n] y proceeding ... LOCAL_VERSION=1.4.1 DOCKER_IMAGE_VERSION=1.4.1