问题描述
connection-profile.yaml
{
"name": "network","version": "1.0.0","client": {
"organization": "Freight","connection": {
"timeout": {
"peer": {
"endorser": "300"
}
}
}
},"organizations": {
"Freight": {
"mspid": "FreightMSP","peers": [
"peer0.freight.example.com","peer1.freight.example.com"
],"certificateAuthorities": [
"ca.freight.example.com"
]
}
},"peers": {
"peer0.freight.example.com":{
"url": "grpcs://peer0.freight.example.com:9051","grpcoption": {
"ssl-target-name-override": "peer0.freight.example.com","hostnameOverride": "peer0.freight.example.com"
},"tlsCACerts": {
"path": "../../network/organizations/peerOrganizations/freight.example.com/tlsca/tlsca.freight.example.com-cert.pem"
}
},"peer1.freight.example.com":{
"url": "grpcs://peer1.freight.example.com:10051","grpcoption": {
"ssl-target-name-override": "peer1.freight.example.com","hostnameOverride": "peer1.freight.example.com"
},"tlsCACerts": {
"path": "../../network/organizations/peerOrganizations/freight.example.com/tlsca/tlsca.freight.example.com-cert.pem"
}
}
},"certificateAuthorities": {
"ca.freight.example.com": {
"url": "https://ca.freight.example.com:9054","caName": "ca.freight.example.com","httpOptions": {
"verify": false
},"tlsCACerts": {
"path": "../../network/organizations/peerOrganizations/freight.example.com/ca/ca.freight.example.com-cert.pem"
}
}
}
}
发现服务：
discovery: {
enabled: true,asLocalhost: false
}
asLocalhost 是假的，因为所有组织都托管在不同的主机上并且在 docker swarm 网络中。但是在调用添加资产调用函数时出现此错误。
Wallet Path: /home/hlfabric/fabric/api/freight/wallet
2021-03-06T17:58:15.407Z - error: [ServiceEndpoint]: Error: Failed to connect before the deadline on Endorser- name: peer0.freight.example.com,url:grpcs://peer0.freight.example.com:9051,connected:false,connectAttempted:true
2021-03-06T17:58:15.408Z - error: [ServiceEndpoint]: waitForReady - Failed to connect to remote gRPC server peer0.freight.example.com url:grpcs://peer0.freight.example.com:9051 timeout:3000
2021-03-06T17:58:15.409Z - info: [NetworkConfig]: buildPeer - Unable to connect to the endorser peer0.freight.example.com due to Error: Failed to connect before the deadline on Endorser- name: peer0.freight.example.com,connectAttempted:true
2021-03-06T17:58:18.412Z - error: [ServiceEndpoint]: Error: Failed to connect before the deadline on Endorser- name: peer1.freight.example.com,url:grpcs://peer1.freight.example.com:10051,connectAttempted:true
2021-03-06T17:58:18.412Z - error: [ServiceEndpoint]: waitForReady - Failed to connect to remote gRPC server peer1.freight.example.com url:grpcs://peer1.freight.example.com:10051 timeout:3000
2021-03-06T17:58:18.412Z - info: [NetworkConfig]: buildPeer - Unable to connect to the endorser peer1.freight.example.com due to Error: Failed to connect before the deadline on Endorser- name: peer1.freight.example.com,connectAttempted:true
2021-03-06T17:58:21.423Z - error: [ServiceEndpoint]: Error: Failed to connect before the deadline on discoverer- name: peer0.freight.example.com,connectAttempted:true
2021-03-06T17:58:21.423Z - error: [ServiceEndpoint]: waitForReady - Failed to connect to remote gRPC server peer0.freight.example.com url:grpcs://peer0.freight.example.com:9051 timeout:3000
2021-03-06T17:58:21.423Z - error: [ServiceEndpoint]: ServiceEndpoint grpcs://peer0.freight.example.com:9051 reset connection Failed :: Error: Failed to connect before the deadline on discoverer- name: peer0.freight.example.com,connectAttempted:true
2021-03-06T17:58:24.425Z - error: [ServiceEndpoint]: Error: Failed to connect before the deadline on discoverer- name: peer1.freight.example.com,connectAttempted:true
2021-03-06T17:58:24.425Z - error: [ServiceEndpoint]: waitForReady - Failed to connect to remote gRPC server peer1.freight.example.com url:grpcs://peer1.freight.example.com:10051 timeout:3000
2021-03-06T17:58:24.425Z - error: [ServiceEndpoint]: ServiceEndpoint grpcs://peer1.freight.example.com:10051 reset connection Failed :: Error: Failed to connect before the deadline on discoverer- name: peer1.freight.example.com,connectAttempted:true
2021-03-06T17:58:24.425Z - error: [discoveryService]: send[supplychain-channel] - no discovery results
Failed to evaluate transaction: function () discovery Service has Failed to return results
网络拓扑是 5 个组织，其中 2 个组织，其中 1 个没有排序节点，3 个组织有 2 个节点，每个节点都有排序节点。订购者是 peerOrganization 本身的一部分。每个组织都有自己的 CA。 导致此错误的原因是什么？
更新发现：
await gateway.connect(ccp,{
wallet,identity: username,discovery: {
enabled: true,asLocalhost: true
},clientTlsIdentity: 'freight'
})
const network = await gateway.getNetwork('supplychain-channel')
console.log(network)
控制台：
Wallet Path: /home/hlfabric/fabric/api/freight/wallet
2021-03-10T04:54:26.827Z - error: [ServiceEndpoint]: Error: Failed to connect before the deadline on Committer- name: orderer0.freight.example.com:9050,url:grpcs://localhost:9050,connectAttempted:true
2021-03-10T04:54:26.828Z - error: [ServiceEndpoint]: waitForReady - Failed to connect to remote gRPC server orderer0.freight.example.com:9050 url:grpcs://localhost:9050 timeout:3000
2021-03-10T04:54:26.828Z - error: [discoveryService]: _buildOrderer[supplychain-channel] - Unable to connect to the discovered orderer orderer0.freight.example.com:9050 due to Error: Failed to connect before the deadline on Committer- name: orderer0.freight.example.com:9050,connectAttempted:true
2021-03-10T04:54:29.830Z - error: [ServiceEndpoint]: Error: Failed to connect before the deadline on Committer- name: orderer1.carrier.example.com:11050,url:grpcs://localhost:11050,connectAttempted:true .....
NetworkImpl {
contracts: Map {},initialized: true,commitListeners: Map {},blockListeners: Map {},gateway:
Gateway {
networks: Map { 'supplychain-channel' => [Circular] },options:
{ queryHandlerOptions: [Object],eventHandlerOptions: [Object],discovery: [Object],wallet: [Wallet],identity: 'sai',clientTlsIdentity: 'freight' },client:
Client {
type: 'Client',name: 'gateway client',mspid: null,_tls_mutual: [Object],endorsers: [Map],committers: [Map],channels: [Map],centralizedOptions: null },identity:
{ credentials: [Object],mspId: 'FreightMSP',type: 'X.509' },identityContext:
IdentityContext {
type: 'IdentityContext',client: [Client],user: [User],name: 'sai',mspid: 'FreightMSP',transactionId: null,nonce: null } },channel:
Channel {
type: 'Channel',name: 'supplychain-channel',endorsers:
Map {
'peer0.freight.example.com:9051' => [Endorser],'peer1.freight.example.com:10051' => [Endorser] },committers: Map { 'orderer0.freight.example.com:9050' => [Committer] },msps:
Map {
'FreightMSP' => [Object],'ConsigneeMSP' => [Object],'ShipperMSP' => [Object],'CarrierMSP' => [Object],'CustomMSP' => [Object] } },eventServiceManager:
EventServiceManager {
eventServices: Map {},network: [Circular],channel:
Channel {
type: 'Channel',msps: [Map] },realtimeFilteredBlockEventSource:
BlockEventSource {
listeners: Set {},started: false,eventServiceManager:
EventServiceManager {
eventServices: Map {},channel: [Channel],identityContext: [IdentityContext] },blockQueue:
OrderedBlockQueue { queue: Map {},nextBlockNumber: undefined },asyncNotifier:
AsyncNotifier {
running: false,readCallback: [Function: bound getNextBlock],notifyCallback: [AsyncFunction: bound notifyListeners] },blockType: 'filtered' },realtimeFullBlockEventSource:
BlockEventSource {
listeners: Set {},blockType: 'full' },realtimePrivateBlockEventSource:
BlockEventSource {
listeners: Set {},blockType: 'private' },discoveryService:
discoveryService {
type: 'discoveryService',refreshAge: undefined,discoveryResults:
{ msps: [Object],orderers: [Object],peers_by_org: [Object],timestamp: 1615352105872 },asLocalhost: true,currentTarget:
discoverer {
name: 'peer0.freight.example.com',connected: true,connectAttempted: true,endpoint: [Endpoint],service: [ServiceClientImpl],serviceClass: [Function],type: 'discoverer',options: [Object] },targets: [ [discoverer],[discoverer] ],_action: { init: false,request: [Request] },_payload:
<Buffer 0a c4 07 0a 9f 07 0a 0a 46 72 65 69 67 68 74 4d 53 50 12 90 07 2d 2d 2d 2d 2d 42 45 47 49 4e 20 43 45 52 54 49 46 49 43 41 54 45 2d 2d 2d 2d 2d 0a 4d ... >,_signature:
<Buffer 30 44 02 20 18 dc 09 b5 2c 95 5d 98 14 c8 ee a0 47 48 f9 95 ae 74 1d b0 a9 d3 0e 21 cc dd 06 40 18 bc f4 f9 02 20 21 49 01 65 0b 2d 67 23 35 51 a8 dc ... >,requestTimeout: undefined },queryHandler:
SingleQueryHandler { currentPeerIndex: 0,peers: [ [Endorser],[Endorser] ] } }
解决方法
以 example.com 结尾的 DNS 名称将无法解析，除非您在本地主机文件中有它们的条目：
https://en.wikipedia.org/wiki/Example.com
节点名称需要可解析并可被您的客户端访问（以及其他节点，因为它们希望彼此通信）。如果所有这些地址都从私有（例如 Docker）网络映射到本地主机网络上的相同端口号，则您应该能够启用 asLocalhost，这只会导致发现服务对其进行处理和主机名作为本地主机地址接收（但保持端口号不变）。或者，您可以通过以下任一方式使这些地址可解析：
- 为他们提供真实的公共网络地址；或
- 在您客户的主机文件中为它们添加条目
在运行结构的同一网络内的 docker 环境中运行客户端解决了上述问题
Dockerfile
FROM node:10.24
WORKDIR /usr/src/app
COPY package*.json ./
RUN apt-get update || : && apt-get install python -y
RUN npm install
COPY . .
EXPOSE 9080
CMD [ "node","server.js" ]
首次运行很重要，因为节点映像不包含 python，并且对于 pkcs11 等某些模块，结构节点 sdk 需要 python，解决安装依赖项时发生的错误 gyp ERR! find Python checking if "python3" can be used。
docker-compose.yml
version: "2.1"
networks:
supplychain:
external:
name: supplychain
services:
api:
image: api:1.0
build:
context: "client/"
networks:
- supplychain
ports:
- 9080:9080
将 asLocalhost: false 和 peers 的 urls 设置为 "url": "grpcs://peer0.freight.example.com:9051" 点被客户端发现。
await gateway.connect(ccp,{
wallet,identity: username,discovery: {
enabled: true,asLocalhost: false
}
})
