Fabric SDK 创建客户端报错event service creation failed: could not get chConfig cache re

2021-03-16 05:44:31 1.8k 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

深入解析TI C6748 DSP：架构、开发与优化实战指南数字信号处理器（DSP）是嵌入式系统中处理实时信号与数据流的核心计算单元，其通过专用的硬件架构和指令集，高效执行滤波、变换等密集型数学运算。其工作原理在于采用哈佛结构或改进的冯·诺依曼结构，结合多级流水线、并行计算单元和专用硬件加速器，以实现高吞吐量和低延迟的确定性处理。这种技术价值在于，它能在功耗受限的嵌入式环境中，为机器视觉、音频处理和通信系统提供远超通用处理器的实时信号处理能力。在工业自动化、消费电子和通信设备等应用场景中，DSP是实现复杂算法落地的关键。本文聚焦于德州仪器（TI）的TMS320C67 阅读详情

创建客户端报错，报错如下：
2021/03/16 16:47:15 创建新的通道客户端失败: event service creation failed: could not get chConfig cache reference: QueryBlockConfig failed: QueryBlockConfig failed: queryChaincode failed: Transaction processing for endorser [peer0.org1.example.com:7051]: Endorser Client Status Code: (2) CONNECTION_FAILED. Description: dialing connection on target [peer0.org1.example.com:7051]: connection is in TRANSIENT_FAILURE

sdk连接配置文件



name: "test-network"

version: 1.0.0



client:



  organization: Org1

  logging:

    level: info





  cryptoconfig:

    path: ./config/cert



  credentialStore:

    path: /tmp/shanyiou-store



    cryptoStore:

      path: /tmp/shanyiou-msp 



  BCCSP:

    security:

     enabled: true

     default:

      provider: "SW"

     hashAlgorithm: "SHA2"

     softVerify: true

     level: 256



  tlsCerts:

    systemCertPool: false



    client:

      key:

        path:

      cert:

        path:



channels:

  mychannel:



    peers:

      peer0.org1.example.com:

        endorsingPeer: true

        chaincodeQuery: true

        ledgerQuery: true

        eventSource: true



    policies:

      queryChannelConfig:

        minResponses: 1

        maxTargets: 1

        retryOpts:

          attempts: 5

          initialBackoff: 500ms

          maxBackoff: 5s

          backoffFactor: 2.0

      discovery:

        maxTargets: 2

        retryOpts:

          attempts: 4

          initialBackoff: 500ms

          maxBackoff: 5s

          backoffFactor: 2.0

      eventService:

        resolverStrategy: PreferOrg

        balancer: Random

        blockHeightLagThreshold: 5

        reconnectBlockHeightLagThreshold: 10

        peerMonitorPeriod: 5s



organizations:

  Org1:

    mspid: Org1MSP

    cryptoPath: peerOrganizations/org1.example.com/users/{userName}@org1.example.com/msp

    peers:

      - peer0.org1.example.com

    users:

      Admin:

        key:

          path: ./config/cert/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/keystore/b79a7bf4780dee0b268eebf0b6cbb9e5aa2850b031e796bf2f9ef645e0645c00_sk

        cert: 

          path: ./config/cert/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/signcerts/cert.pem

            

      User1:

        key:

          path: ./config/cert/peerOrganizations/org1.example.com/users/User1@org1.example.com/msp/keystore/c81de741513bed57cef9e7ec686e7ff5044f3bb7cf10955935ae664aa6a47f7a_sk

        cert: 

          path: ./config/cert/peerOrganizations/org1.example.com/users/User1@org1.example.com/msp/signcerts/cert.pem







orderers:

  orderer.example.com:

    url: grpcs://orderer.example.com:7050



    grpcOptions:

      ssl-target-name-override: orderer.example.com

      keep-alive-time: 0s

      keep-alive-timeout: 20s

      keep-alive-permit: false

      fail-fast: false

      allow-insecure: false



    tlsCACerts:

      #      path: ./fixtures/crypto-config/ordererOrganizations/example.com/tlsca/tlsca.example.com-cert.pem 

      path: ./config/cert/ordererOrganizations/example.com/msp/tlscacerts/tlsca.example.com-cert.pem 



peers:

  peer0.org1.example.com:

    url: peer0.org1.example.com:7051

    eventUrl: grpcs://peer0.org1.example.com:7053



    grpcOptions:

      ssl-target-name-override: peer0.org1.example.com

      keep-alive-time: 0s

      keep-alive-timeout: 20s

      keep-alive-permit: false

      fail-fast: false

      allow-insecure: false



    tlsCACerts:

      path: ./config/cert/peerOrganizations/org1.example.com/tlsca/tlsca.org1.example.com-cert.pem



entityMatchers:

  peer:

    - pattern: (\w*)peer0.org1.example.com(\w*)

      urlSubstitutionExp: grpcs://peer0.org1.example.com:7051

      eventUrlSubstitutionExp: grpcs://peer0.org1.example.com:7053

      sslTargetOverrideUrlSubstitutionExp: peer0.org1.example.com

      mappedHost: peer0.org1.example.com



  orderer:

    - pattern: (.*)

      urlSubstitutionExp: grpcs://localhost:7050

      sslTargetOverrideUrlSubstitutionExp: orderer.example.com

      mappedHost: orderer.example.com

访问区块链概况go代码



package main



import (

	//	"fmt"

	"log"

	"os"



	"github.com/hyperledger/fabric-sdk-go/pkg/client/channel"

	"github.com/hyperledger/fabric-sdk-go/pkg/common/errors/retry"

	"github.com/hyperledger/fabric-sdk-go/pkg/core/config"

	"github.com/hyperledger/fabric-sdk-go/pkg/fabsdk"

)



const (

	channelID   = "mychannel"

	chaincodeID = "esg"

	orgID       = "Org1"

	userID      = "Admin"

)



func main() {

	configOpt := config.FromFile("./config/sdk-config.yaml")

	sdk, err := fabsdk.New(configOpt)

	if err != nil {

		log.Fatalf("创建新的SDK失败: %v\n", err)

		return

	}

	defer sdk.Close()

	log.Printf("---> 创建SDK成功\n")



	var options_user fabsdk.ContextOption

	var options_org fabsdk.ContextOption



	options_user = fabsdk.WithUser(userID)

	options_org = fabsdk.WithOrg(orgID)



	//	fmt.Printf("%v\n", options_user)

	//	fmt.Printf("%v\n", options_org)

	//clientChannelContext := sdk.ChannelContext(channelID, fabsdk.WithUser(userID), fabsdk.WithOrg(mspID))

	clientChannelContext := sdk.ChannelContext(channelID, options_user, options_org)

	client, err := channel.New(clientChannelContext)



	if err != nil {

		log.Fatalf("创建新的通道客户端失败: %v\n", err)

		return

	}

	log.Printf("--> 创建新的通道客户端\n")



	var response channel.Response

	if len(os.Args) > 1 && os.Args[1] == "invoke" {

		response, err = client.Execute(channel.Request{ChaincodeID: chaincodeID, Fcn: "invoke", Args: [][]byte{[]byte("a"), []byte("b"), []byte("10")}},

			channel.WithRetry(retry.DefaultChannelOpts))

	} else {

		response, err = client.Query(channel.Request{ChaincodeID: chaincodeID, Fcn: "query", Args: [][]byte{[]byte("b")}},

			channel.WithRetry(retry.DefaultChannelOpts))

	}

	if err != nil {

		log.Fatalf("Failed to call client: %v\n", err)

		return

	}



	log.Printf("Result=(%v)\n", string(response.Payload))

}