- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
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User Guide
- Enhanced Hyperledger Fabric BCS Management
- Best Practices
-
Developer Guide
- Overview
- Chaincode Development
- Application Development
- Demos
-
Blockchain Middleware APIs
- Overview
- Chaincode Invoking (OBT)
-
Chaincode Management
- Obtaining a Token
- Installing a Chaincode
- Instantiating a Chaincode
- Listing Installed Chaincodes
- Querying Version of a Specified Chaincode
- Querying Chaincode Installation Information
- Querying Chaincode Instantiation Information
- Querying an Appchain
- Listing Blocks
- Listing Transactions
- Querying Transaction Quantity
- Listing Block Transactions
- Querying Transaction Details
- Querying Peers
- Querying diskUsage of a Node
- Querying the System-Hosted Certificate Status
- Deleting a Chaincode
- Downloading a Report
- Distributed Identity (OBT)
- Trusted Data Exchange (OBT)
- Appendix
-
API Reference
- Before You Start
- API Overview
- Examples
- Calling APIs
-
APIs (Enhanced Hyperledger Fabric)
-
BCS Management
- Creating a BCS Service
- Querying Creation Status of a BCS Service
- Querying a BCS Service
- Modifying a BCS Service
- Creating Channels
- Querying Channel Information
- Adding Peers to a Channel
- Removing Organizations from a Channel
- Downloading Certificates
- Downloading the SDK Configuration
- Generating a User Certificate
- Unfreezing a User Certificate
- Freezing a User Certificate
- Querying Quotas
- Querying Flavors
- Querying Peer Information
- Querying Asynchronous Operation Results
- Querying the BCS Service List
- Deleting a BCS Service
- Removing a Peer from a Channel
- Deleting a Channel
- BCS Consortium
- BCS Monitoring
-
BCS Management
- Permissions Policies and Supported Actions
- Appendix
- Change History
- SDK Reference
-
FAQs
-
Enhanced Hyperledger Fabric
- Billing
-
Instance Management
-
Consultation
- How Do I Determine Whether a Blockchain Is Necessary?
- What Underlying Framework Is Used for Huawei Cloud BCS?
- Can BCS Instances Deployed on the Public Cloud Access Blockchain Nodes on Other Clouds?
- What Competitive Advantages Does Huawei Cloud BCS Have?
- In Which Direction and What Capabilities Will Huawei Cloud BCS Develop?
- What Are the Specifications of VMs to Be Purchased for BCS?
- How Do I Get Access to the Partners of Huawei Cloud BCS for More Services?
- What Are the Differences Between Channel Isolation and Privacy Protection?
- How Well Does BCS Perform?
- Does BCS Support Customized Development?
- When Do I Need to Hibernate or Wake an Instance?
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Service Usage
- Which Ports of a Security Group Are Opened When I Create a BCS Instance?
- How Do I Check Whether the ICAgent Is Installed for the Cluster?
- What Can I Do If I Can't Open the Blockchain Management Console?
- What Should I Do If My BCS Instance Remains in the Creating State?
- What Should I Do If a Peer Restarts Frequently with the Error Message "PanicDB not exist"?
- What Can I Do If the CPU Usage of a Blockchain Node Reaches 100%?
- Why Can't I Log In to the Blockchain Management Console?
- BCS.4009100: System Error
- How Can I Obtain Private Keys and Certificates for Enhanced Hyperledger Fabric Blockchains?
- Why Does Chaincode Instantiation Fail When I Deploy a Fabric v1.4 Instance Using a v1.19 CCE Cluster?
- Can All Blocks Be Saved As More and More Blocks Are Created?
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What Can I Do If I Fail to Purchase a BCS Instance?
- General Checks
-
Detailed Checks
- CCE Cluster Quota Used Up
- Failed to Create a Cluster
- Failed to Create a PVC
- Cluster Already In Use
- SFS Turbo File System Quota Exceeded
- No EIP Bound
- CCE Is Abnormal
- Cluster Status Is Abnormal
- Subnet Unavailable
- Quick Deployment in Progress
- CCE Status Check Times Out
- Insufficient Master Nodes in the AZ of the CCE Cluster
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Abnormal Instance Statuses
- What Can I Do If a BCS Instance Is in the Abnormal State?
- What Can I Do If a BCS Instance Is in the Unknown State?
- What Can I Do If a BCS Instance Is in the EIP abnormal State?
- What Can I Do If a BCS Instance Is in the Frozen or Cluster frozen State?
- What Can I Do If the BCS Instance and the peer-xxx StatefulSet Are Abnormal After an Organization or a Peer Is Added?
- Other Issues
-
Consultation
- Chaincode Management
- Data Storage to the Blockchain
- Demos and APIs
- O&M and Monitoring
- Consortium Management
-
Enhanced Hyperledger Fabric
- Videos
-
More Documents
-
User Guide (ME-Abu Dhabi Region)
- Service Overview
- Managing Enhanced Hyperledger Fabric Instances
-
FAQs
-
BCS FAQs
-
Instance Management
-
Consultation
- How Do I Determine Whether a Blockchain Is Necessary?
- What Underlying Framework Is Used for BCS?
- What Competitive Advantages Does BCS Have?
- What Are the Specifications of VMs to Be Created for BCS?
- What Are the Differences Between Channel Isolation and Privacy Protection?
- How Well Does BCS Perform?
- When Do I Need to Hibernate or Wake an Instance?
-
Service Usage
- How Do I Check Whether the ICAgent Is Installed for the Cluster?
- What Can I Do If I Can't Open the Blockchain Management Console?
- What Should I Do If My BCS Instance Remains in the Creating State?
- What Should I Do If a Peer Restarts Frequently with the Error Message "PanicDB not exist"?
- What Can I Do If the CPU Usage of a Blockchain Node Reaches 100%?
- Why Can't I Log In to the Blockchain Management Console?
- BCS.4009100: System Error
- How Can I Obtain Private Keys and Certificates for Enhanced Hyperledger Fabric Blockchains?
- Can All Blocks Be Saved As More and More Blocks Are Created?
- Abnormal Instance Statuses
- Other Issues
-
Consultation
- Chaincode Management
- Data Storage to the Blockchain
- Demos and APIs
- O&M and Monitoring
- Consortium Management
-
Instance Management
-
BCS FAQs
- Change History
- Developer Guide (ME-Abu Dhabi Region)
-
User Guide (ME-Abu Dhabi Region)
- General Reference
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Overview
Background
With the continuous advancements of IT, interbank business processes become standardized. However, some operations are redundant. For example, it takes a long time and tedious procedure to query users' basic information such as account and identity across banks, resulting in poor user experience.
Solution
Blockchain Service (BCS) provides consortium blockchains based on enhanced Hyperledger Fabric. After creating a consortium blockchain, you can invite other banks to join it. Consortium members can share data with each other in a trusted manner, which saves time for users and improves the efficiency for banks. Peers of each consortium member run in a separate VPC for independent and secure management.
This best practice uses a bank consortium blockchain as an example to explain the basics of consortium blockchains and how to form a consortium blockchain. It helps you quickly get started with Huawei Cloud BCS.
This is a demo only and is not for actual use.
Scenario
- Business scenario and members:
- democraticBank invites civilizationBank and harmoniousBank (invitees A and B) to join the bank consortium.
- A customer registers accounts with civilizationBank and harmoniousBank without Know Your Customer (KYC) checks based on an existing account and KYC check results of democraticBank.
- Requirements
Data such as user identities must be encrypted to protect the information against brute force attack. Quick information queries based on identities must be supported.
- Key challenges:
- Security and privacy: Banks require no disclosure of customer privacy information to other banks.
- High-performance retrieval: Retrieval performance (millisecond-level response) similar to that of legacy databases must be delivered to ensure user experience.
- Easy-to-use interfaces: Simple and convenient interfaces must be provided to facilitate application development.
Process Flow
The following describes the general process of setting up a consortium blockchain.
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- Buy a BCS instance.
Buy a consortium blockchain and name the organization member democraticBank.
- Invite tenants to join the consortium.
After the consortium blockchain is created, organization member democraticBank invites civilizationBank and harmoniousBank to join the consortium blockchain.
- Invitees join the consortium.
civilizationBank and harmoniousBank join the consortium blockchain based on the invitation information.
- Install and instantiate the chaincode.
The chaincode must be installed by the inviting party and all invitees (in this demo, invitees A and B), and can be instantiated by any member in the consortium.
- Configure the application.
Before initiating transactions, the inviting party must download the administrator certificates of the orderer and organization democraticBank, and the certificates of invitees A and B with the private keys hidden.
- Deploy the application.
Install the bank consortium blockchain demo application on an Elastic Cloud Server (ECS).
- Debug the application.
After the application is deployed, you can test data transactions on the consortium blockchain.
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