Question

我正在Go中开发一种中间件，该中间件使用fabric-sdk-go集成了一个超级账本矩阵网络。中间件在Docker容器上运行，并且设置为使用相同的结构容器网络（我已经检查了容器是否相互连接），但是当我尝试连接到通道时，会引发以下错误：

无法创建新的通道客户端：事件服务创建失败：无法获取chConfig缓存参考：QueryBlockConfig失败：queryChaincode失败：背书人[peer0.slaughterhouse.kingbeefcattle.com:7051]的事务处理：背书人客户端状态代码：（ 2）CONNECTION_FAILED。说明：拨号连接超时[peer0.slaughterhouse.kingbeefcattle.com:7051]

有我的config.yaml：

name: "kingbeefcattlenetowrk"
#
# Schema version of the content. Used by the SDK to apply the corresponding parsing rules.
#
version: 1.0.0

#
# The client section used by GO SDK.
#
client:

  # Which organization does this application instance belong to? The value must be the name of an org
  # defined under "organizations"
  organization: slaughterhouse

  logging:
    level: info

  # Root of the MSP directories with keys and certs.
  cryptoconfig:
    path: /crypto-config

  # Some SDKs support pluggable KV stores, the properties under "credentialStore"
  # are implementation specific
  credentialStore:
    path: /tmp/kingbeefcattlestore

    # [Optional]. Specific to the CryptoSuite implementation used by GO SDK. Software-based implementations
    # requiring a key store. PKCS#11 based implementations does not.
    cryptoStore:
      path: /tmp/kingbeefcattlemsp

  # BCCSP config for the client. Used by GO SDK.
  BCCSP:
    security:
     enabled: true
     default:
      provider: "SW"
     hashAlgorithm: "SHA2"
     softVerify: true
     level: 256

  tlsCerts:
    # [Optional]. Use system certificate pool when connecting to peers, orderers (for negotiating TLS) Default: false
    systemCertPool: false

    # [Optional]. Client key and cert for TLS handshake with peers and orderers
    # client:
    #   keyfile:
    #   certfile:

#
# [Optional]. But most apps would have this section so that channel objects can be constructed
# based on the content below. If an app is creating channels, then it likely will not need this
# section.
#
channels:
  # name of the channel
  kingbeefcattlechannel:
    # Required. list of orderers designated by the application to use for transactions on this
    # channel. This list can be a result of access control ("org1" can only access "ordererA"), or
    # operational decisions to share loads from applications among the orderers.  The values must
    # be "names" of orgs defined under "organizations/peers"
    # deprecated: not recommended, to override any orderer configuration items, entity matchers should be used.
    # orderers:
    #  - orderer.example.com

    # Required. list of peers from participating orgs
    peers:
      peer0.slaughterhouse.kingbeefcattle.com:
        # [Optional]. will this peer be sent transaction proposals for endorsement? The peer must
        # have the chaincode installed. The app can also use this property to decide which peers
        # to send the chaincode install request. Default: true
        endorsingPeer: true

        # [Optional]. will this peer be sent query proposals? The peer must have the chaincode
        # installed. The app can also use this property to decide which peers to send the
        # chaincode install request. Default: true
        chaincodeQuery: true

        # [Optional]. will this peer be sent query proposals that do not require chaincodes, like
        # queryBlock(), queryTransaction(), etc. Default: true
        ledgerQuery: true

        # [Optional]. will this peer be the target of the SDK's listener registration? All peers can
        # produce events but the app typically only needs to connect to one to listen to events.
        # Default: true
        eventSource: true

      peer1.slaughterhouse.kingbeefcattle.com:

    policies:
      #[Optional] options for retrieving channel configuration blocks
      queryChannelConfig:
        #[Optional] min number of success responses (from targets/peers)
        minResponses: 1
        #[Optional] channel config will be retrieved for these number of random targets
        maxTargets: 1
        #[Optional] retry options for query config block
        retryOpts:
          #[Optional] number of retry attempts
          attempts: 5
          #[Optional] the back off interval for the first retry attempt
          initialBackoff: 500ms
          #[Optional] the maximum back off interval for any retry attempt
          maxBackoff: 5s
          #[Optional] he factor by which the initial back off period is exponentially incremented
          backoffFactor: 2.0


#
# list of participating organizations in this network
#
organizations:
  slaughterhouse:
    mspid: SlaughterhouseMSP
    cryptoPath: peerOrganizations/slaughterhouse.kingbeefcattle.com/users/{userName}@slaughterhouse.kingbeefcattle.com/msp
    peers:
      - peer0.slaughterhouse.kingbeefcattle.com
      # - peer1.slaughterhouse.kingbeefcattle.com

#
# List of orderers to send transaction and channel create/update requests to. For the time
# being only one orderer is needed. If more than one is defined, which one get used by the
# SDK is implementation specific. Consult each SDK's documentation for its handling of orderers.
#
orderers:
  orderer.kingbeefcattle.com:
    url: orderer.kingbeefcattle.com:7050
    # url: grpc://172.22.0.4:7050
    # these are standard properties defined by the gRPC library
    # they will be passed in as-is to gRPC client constructor
    grpcOptions:
      # ssl-target-name-override: orderer.kingbeefcattle.com
      # These parameters should be set in coordination with the keepalive policy on the server,
      # as incompatible settings can result in closing of connection.
      # When duration of the 'keep-alive-time' is set to 0 or less the keep alive client parameters are disabled
      keep-alive-time: 0s
      keep-alive-timeout: 20s
      keep-alive-permit: false
      fail-fast: false
      # allow-insecure will be taken into consideration if address has no protocol defined, if true then grpc or else grpcs
      allow-insecure: false

    tlsCACerts:
      # Certificate location absolute path
      path: /crypto-config/ordererOrganizations/kingbeefcattle.com/tlsca/tlsca.kingbeefcattle.com-cert.pem
#
# List of peers to send various requests to, including endorsement, query
# and event listener registration.
#
peers:
  peer0.slaughterhouse.kingbeefcattle.com:
    #this URL is used to send endorsement and query requests
    url: peer0.slaughterhouse.kingbeefcattle.com:7051
    # eventUrl is only needed when using eventhub (default is delivery service)
    eventUrl: peer0.slaughterhouse.kingbeefcattle.com:7053
    # url: grpc://172.22.0.2:7051
    # # eventUrl is only needed when using eventhub (default is delivery service)
    # eventUrl: grpc://172.22.0.2:7053

    grpcOptions:
      # ssl-target-name-override: peer0.slaughterhouse.kingbeefcattle.com
      # These parameters should be set in coordination with the keepalive policy on the server,
      # as incompatible settings can result in closing of connection.
      # When duration of the 'keep-alive-time' is set to 0 or less the keep alive client parameters are disabled
      keep-alive-time: 0s
      keep-alive-timeout: 20s
      keep-alive-permit: false
      fail-fast: false
      # allow-insecure will be taken into consideration if address has no protocol defined, if true then grpc or else grpcs
      allow-insecure: false

    tlsCACerts:
      # Certificate location absolute path
      # path: /crypto-config/peerOrganizations/slaughterhouse.kingbeefcattle.com/peers/peer0.slaughterhouse.kingbeefcattle.com/tls/ca.crt
      path: /crypto-config/peerOrganizations/slaughterhouse.kingbeefcattle.com/tlsca/tlsca.slaughterhouse.kingbeefcattle.com-cert.pem

可以有人帮忙吗？

Answer 1

我发现了问题的原因，这是因为我已经用对等端口配置了它暴露给主机的值（位于同一网络上）。

要解决此问题，我将端口更改为7051和7053（事件），因此一些请求开始起作用，但是现在我间歇性地出现以下错误：

背书人的交易处理[peer1.slaughterhouse.kingbeefcattle.com:7051]：背书人客户端状态代码：（2）CONNECTION_FAILED。说明：拨号连接超时[peer1.slaughterhouse.kingbeefcattle.com:7051]

注意：这不是我在config.yaml中设置的对等主机，实际上该对等主机来自另一个组织...

是否可以使用CORE_PEER_GOSSIP_USELEADERELECTION = true设置？

Answer 2

由于对等点发现通过引用localhost映射的URL而不是像peer0.org1.example.com这样的URL来发生此错误。因此，将config.yaml文件更改为类似

orderers:
  orderer.example.com:
    url: localhost: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: ${GOPATH}/src/github.com/ProjectName/fixtures/crypto-config/ordererOrganizations/example.com/tlsca/tlsca.example.com-cert.pem

peers:
  peer0.org1.example.com:

    url: localhost:7051
    eventUrl: localhost: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:
      # Certificate location absolute path
      path: ${GOPATH}/src/github.com/ProjectFolder/fixtures/crypto-config/peerOrganizations/org1.example.com/tlsca/tlsca.org1.example.com-cert.pem

Answer 3

要解决此问题，我在主机文件例如sudo vi / etc / hosts文件中添加了以下内容：

127.0.0.1    orderer.example.com
127.0.0.1    peer0.org1.example.com
127.0.0.1    ca.example.com

无法获取chConfig缓存参考：QueryBlockConfig失败：queryChaincode失败：

3 个答案: