问题描述
我正在尝试在 Hyperledger 结构测试网络(Fabcar javascript 智能合约)上执行智能合约,当我尝试使用 fabcar javascript 示例中的 invoke.js 文件调用链代码时出现以下错误:
错误:[ServiceEndpoint]:错误:未能在提交者的截止日期前连接-名称:orderer0.example.com:7050,url:grpcs://localhost:7050,connected:false,connectAttempted:true 2021-05-05T23:44:02.951Z - 错误:[ServiceEndpoint]: waitForReady - 无法连接到远程 gRPC 服务器 orderer0.example.com:7050 url:grpcs://localhost:7050 timeout:3000 2021-05-05T23:44:02.952Z - 错误:[discoveryService]: _buildOrderer[mychannel] - 无法连接到发现的订购者 orderer0.example.com:7050 由于错误:未能在提交者名称的截止日期前连接: orderer0.example.com:7050,connectAttempted:true 2021-05-05T23:44:05.957Z - 错误:[ServiceEndpoint]:错误:无法在 Endorser 的截止日期前连接 - 名称:peer0.org01.example.com:7051,url:grpcs://localhost:7051,连接:假,连接尝试:真 2021-05-05T23:44:05.957Z - 错误:[ServiceEndpoint]: waitForReady - 无法连接到远程 gRPC 服务器 peer0.org01.example.com:7051 url:grpcs://localhost:7051 timeout:3000 2021-05-05T23:44:05.958Z - 错误:[discoveryService]: _buildPeer[mychannel] - 无法连接到发现的 peer0.org01.example.com:7051 由于错误:无法在 Endorser 的截止日期前连接- 名称:peer0.org01.example.com:7051,url:grpcs://localhost:7051,connectAttempted:true
需要注意的一点是,我已经更改了默认测试网络中的端口转发和对等/组织名称。我的连接配置文件如下(为了清晰起见,删除了证书):
{
"name": "test-network-org1","version": "1.0.0","client": {
"organization": "Org1","connection": {
"timeout": {
"peer": {
"endorser": "300"
}
}
}
},"channels": {
"mychannel": {
"orderers": [
"orderer0.example.com"
],"peers": [
"peer0.org01.example.com"
]
}
},"organizations": {
"Org1": {
"mspid": "Org1MSP","peers": [
"peer0.org01.example.com"
],"certificateAuthorities": [
"ca.org1.example.com"
]
}
},"peers": {
"peer0.org01.example.com": {
"url": "grpcs://localhost:6041","tlsCACerts": {
"pem": "-----BEGIN CERTIFICATE-----**********-----END CERTIFICATE-----\n"
},"grpcoptions": {
"ssl-target-name-override": "peer0.org01.example.com","hostnameOverride": "peer0.org01.example.com"
}
}
},"orderers": {
"orderer0.example.com": {
"url": "grpcs://localhost:6040","grpcoptions": {
"ssl-target-name-override": "orderer0.example.com"
}
}
},"certificateAuthorities": {
"ca.org1.example.com": {
"url": "https://localhost:6054","caName": "ca-org1","tlsCACerts": {
"pem": ["-----BEGIN CERTIFICATE-----******-----END CERTIFICATE-----\n"]
},"httpOptions": {
"verify": false
}
}
}
}
令我困惑的一件事(我认为这是错误的根本原因)是订购者的 grpcs url。在连接配置文件中,我已明确指定它为 grpcs://localhost:6041,但是从错误中可以看出,错误将 url 声明为 grpcs://localhost: 7050。我已经查看了测试网络中的各种文件,但无法弄清楚为什么没有从连接配置文件中读取 grpcs url。
这个问题仅限于fabcar例子中的query.js和invoke.js文件(我可以在网络上成功执行enrollAdmin.js和registerUser.js)。
'use strict';
const { Gateway,Wallets } = require('fabric-network');
const fs = require('fs');
const path = require('path');
async function main() {
try {
// load the network configuration
const ccpPath = path.resolve(__dirname,'..','test-network','organizations','peerOrganizations','org1.example.com','connection-org1.json');
let ccp = JSON.parse(fs.readFileSync(ccpPath,'utf8'));
// Create a new file system based wallet for managing identities.
const walletPath = path.join(process.cwd(),'wallet');
const wallet = await Wallets.newFileSystemWallet(walletPath);
console.log(`Wallet path: ${walletPath}`);
// Check to see if we've already enrolled the user.
const identity = await wallet.get('appUser3');
if (!identity) {
console.log('An identity for the user "appUser3" does not exist in the wallet');
console.log('Run the registerUser.js application before retrying');
return;
}
// Create a new gateway for connecting to our peer node.
const gateway = new Gateway();
await gateway.connect(ccp,{ wallet,identity: 'appUser3',discovery: { enabled: true,asLocalhost: true } });
// Get the network (channel) our contract is deployed to.
const network = await gateway.getNetwork('mychannel');
// Get the contract from the network.
const contract = network.getContract('fabcar');
// Submit the specified transaction.
// createCar transaction - requires 5 argument,ex: ('createCar','CAR12','Honda','Accord','Black','Tom')
// changeCarOwner transaction - requires 2 args,ex: ('changeCarOwner','Dave')
await contract.submitTransaction('createCar','CAR312','Skoda','Kadiq','White','JOHNSON');
console.log('Transaction has been submitted');
// disconnect from the gateway.
await gateway.disconnect();
} catch (error) {
console.error(`Failed to submit transaction: ${error}`);
process.exit(1);
}
}
main();
任何帮助将不胜感激。谢谢
解决方法
我认为关键信息是错误消息的这一部分:
无法连接到发现的订购者 orderer0.example.com:7050
这是客户端使用服务发现定位的节点,未在您的连接配置文件中定义。
我怀疑发生的情况是,即使您更改了本地机器和 Docker 网络之间的端口映射,排序器仍在侦听 Docker 网络中的 7050 端口。
discovery.asLocalhost
连接选项用于支持区块链网络在客户端本地机器上的 Docker 网络中运行的场景,因此它会导致任何发现的主机名被视为 localhost
,但是它使发现的端口号保持不变。因此,在使用 discovery.asLocalhost
选项时,节点在 Docker 网络内侦听的端口号必须映射到本地机器上的相同端口号。
如果您想更改端口号,那么您需要在实际节点本身上更改它们,而不仅仅是在您的 Docker 网络映射中。