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- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
-
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?
-
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?
-
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
-
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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Checking the Java SDK Application Demo
Fault Locating
- Check whether the BCS instance is named java-sdk-demo, uses the Enterprise edition if the security mechanism is OSCCA-published cryptographic algorithms, is a private blockchain deployed in a CCE cluster, and uses SOLO for the consensus mechanism.
NOTE:
Ensure that the development tools have been correctly installed and configured. For details, see Preparation.
To check these details, log in to the BCS console, go to the Instance Management page, and click the target instance to view its details. For details about the configurations required for this demo, see Java SDK Demo.
- Check whether the orderer and peer certificates have been downloaded, and whether the SDK file (java-sdk-demo-sdk-config.zip) has been downloaded to the config directory of the demo project. For details, see sections "Download the SDK configuration" and "Download certificates" under Configuring the Application.
NOTE:
The chaincode name specified when you set the SDK file parameters must be the same as that specified during chaincode installation.
- Check whether the path of the Main class has been changed as required. For details, see Deploying the Application.
Find the Main.java file in the /javasdkdemo/src/main/java/handler/ directory, and change the file path in the following code of the Main class to the absolute path of the java-sdk-demo-sdk-config.yaml file. Change the backslashes (\) to slashes (/).
helper.setConfigCtx("E:/yourdir/huawei.yaml");
- If the BCS instance uses OSCCA-published cryptographic algorithms, check whether the dependency upon fabric-sdk-java-1.4.1-jar-with-dependencies.jar is added to pom.xml. To add the dependency, remove the comments on the dependency as shown in the following figure.
- If timeout occurs occasionally and the transaction interval is long, check whether the fault is caused by the connection protection mechanism of a third-party gRPC. The following figure shows the error information.
Solution
In the src\main\java\handler\FabricHelper.java file, add p.put to the sample code as shown in the following figure. Save the code and perform the transaction again.
p.put("grpc.NettyChannelBuilderOption.keepAliveTime", new Object[] {5L, TimeUnit.MINUTES});
p.put("grpc.NettyChannelBuilderOption.keepAliveTimeout", new Object[] {8L, TimeUnit.SECONDS});
p.put("grpc.NettyChannelBuilderOption.keepAliveWithoutCalls", new Object[] {true});
p.put("grpc.NettyChannelBuilderOption.maxInboundMessageSize", 102400000);
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