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Hyperledger Fabric 介绍几个关键配置文件(三)

Hyperledger Fabric 介绍几个关键配置文件(三)

作者: AI科技智库 | 来源:发表于2020-05-07 15:27 被阅读0次

    1 configtx.yaml

    configtx.yaml是Hyperledger Fabric区块链网络运维工具configtxgen用于生成通道创世块或通道交易的配置文件,configtx.yaml的内容直接决定了所生成的创世区块的内容。
    configtx.yaml主要用到了以下YAML语法:

    符号 含义
    << 合并到当前数据
    - 数组
    * 别名
    & 锚点

    当byfn.sh脚本执行networkUp启动网络时,会调用generateChannelArtifacts创建Orderer通道的创世区块,应用通道配置配置交易文件channel.tx。根据不同的共识机制,传入不同的profile参数。

    function generateChannelArtifacts() {
    ...
      if [ "$CONSENSUS_TYPE" == "solo" ]; then
        configtxgen -profile TwoOrgsOrdererGenesis -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
      elif [ "$CONSENSUS_TYPE" == "kafka" ]; then
        configtxgen -profile SampleDevModeKafka -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
      elif [ "$CONSENSUS_TYPE" == "etcdraft" ]; then
        configtxgen -profile SampleMultiNodeEtcdRaft -channelID $SYS_CHANNEL -outputBlock ./channel-artifacts/genesis.block
      else
        set +x
        echo "unrecognized CONSESUS_TYPE='$CONSENSUS_TYPE'. exiting"
        exit 1
      fi
    ...
    }
    

    1.1 Profiles / 配置入口

    Profiles配置段用来定义用于configtxgen工具的配置入口。包含consortium的配置入口,可以用来生成排序节点的创世区块。如果在排序节点的创世区块中正确定义了consortium 的成员,那么可以仅使用机构成员名称和委员会的名称来生成通道创建请求。

    • TwoOrgsOrdererGenesis:生成solo订购服务的创始块。
    • SampleMultiNodeEtcdRaft:生成Raft订购服务的创始块。仅在发出-o标志并指定时使用etcdraft。
    • SampleDevModeKafka:生成Kafka订购服务的创世块。仅在发出-o标志并指定时使用kafka。
    • TwoOrgsChannel:生成channel创世块。
    Profiles:
    
        TwoOrgsOrdererGenesis:
            <<: *ChannelDefaults
            Orderer:
                <<: *OrdererDefaults
                Organizations:
                    - *OrdererOrg
                Capabilities:
                    <<: *OrdererCapabilities
            Consortiums:
                SampleConsortium:
                    Organizations:
                        - *Org1
                        - *Org2
        TwoOrgsChannel:
            Consortium: SampleConsortium
            <<: *ChannelDefaults
            Application:
                <<: *ApplicationDefaults
                Organizations:
                    - *Org1
                    - *Org2
                Capabilities:
                    <<: *ApplicationCapabilities
    
        SampleDevModeKafka:
            <<: *ChannelDefaults
            Capabilities:
                <<: *ChannelCapabilities
            Orderer:
                <<: *OrdererDefaults
                OrdererType: kafka
                Kafka:
                    Brokers:
                    - kafka.example.com:9092
    
                Organizations:
                - *OrdererOrg
                Capabilities:
                    <<: *OrdererCapabilities
            Application:
                <<: *ApplicationDefaults
                Organizations:
                - <<: *OrdererOrg
            Consortiums:
                SampleConsortium:
                    Organizations:
                    - *Org1
                    - *Org2
    
        SampleMultiNodeEtcdRaft:
            <<: *ChannelDefaults
            Capabilities:
                <<: *ChannelCapabilities
            Orderer:
                <<: *OrdererDefaults
                OrdererType: etcdraft
                EtcdRaft:
                    Consenters:
                    - Host: orderer.example.com
                      Port: 7050
                      ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
                      ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
                    - Host: orderer2.example.com
                      Port: 7050
                      ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer2.example.com/tls/server.crt
                      ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer2.example.com/tls/server.crt
                    - Host: orderer3.example.com
                      Port: 7050
                      ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer3.example.com/tls/server.crt
                      ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer3.example.com/tls/server.crt
                    - Host: orderer4.example.com
                      Port: 7050
                      ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer4.example.com/tls/server.crt
                      ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer4.example.com/tls/server.crt
                    - Host: orderer5.example.com
                      Port: 7050
                      ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer5.example.com/tls/server.crt
                      ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer5.example.com/tls/server.crt
                Addresses:
                    - orderer.example.com:7050
                    - orderer2.example.com:7050
                    - orderer3.example.com:7050
                    - orderer4.example.com:7050
                    - orderer5.example.com:7050
    
                Organizations:
                - *OrdererOrg
                Capabilities:
                    <<: *OrdererCapabilities
            Application:
                <<: *ApplicationDefaults
                Organizations:
                - <<: *OrdererOrg
            Consortiums:
                SampleConsortium:
                    Organizations:
                    - *Org1
                    - *Org2
    

    1.2 Capabilities / 通道能力配置

    Capabilities段定义了fabric程序要加入网络所必须支持的特性。通过定义通道的能力,就明确了不满足该能力要求的fabric程序,将无法处理 交易,除非升级到新的版本。

    Capabilities:
        Channel: &ChannelCapabilities
            # orderers and peers on a channel are at v1.4.3 or later.
            V1_4_3: true
            V1_3: false
            V1_1: false
    
        Orderer: &OrdererCapabilities
            # orderers on a channel are at v1.4.2 or later.
            V1_4_2: true
            V1_1: false
    
        Application: &ApplicationCapabilities
            V1_4_2: true
            V1_3: false
            V1_2: false
            V1_1: false
    

    1.3 Organizations / 组织机构配置

    Organizations配置段用来定义组织机构实体,以便在后续配置中引用。

    配置参数名 含义
    Name 组织名称
    ID MSP ID
    MSPDir msp目录(关于MSP这块后续单独说明)
    AnchorPeers 该组织的锚节点

    Fabric主要通过策略(Policy)来控制各种场景下访问这些资源的权限限制。Fabric实现了两种类型的Policy来满足不同的场景需求:

    • Signature Policy: 用于明确指定哪些参与实体(Principal)必须签名,才能满足该策略。它支持AND, OR, 以及 NOutOf这样的策略组合。比如:"必须Org1和Org2的成员都签名",或者“在20个组织管理员中至少有11个人的签名”。应用场景是:背书策略、智能合约实例化策略等。
      Signature类型Rule的格式为:EXPR(E[, E...]),解释如下:
      EXPR有三个选项:AND, OR 和 OutOf。E表示责任人(英文:principal)
    Principal 解释
    Org0.admin Org0组织中的任何管理员
    Org1.member Org1组织中的任何用户
    Org1.client Org1组织中的任何客户端
    Org1.peer Org1组织中的任何peer
    • ImplicitMeta Policy: 它不像Signature Policy那么灵活,而是组合了多条子策略评估的结果,只有组合的结果满足给定规则(Rule),才能满足该策略。这种策略的描述形式是: "<rule> <sub_policy>"。默认支持的Rule有:ANY, ALL, MAJORITY。比如:"超过半数的通道内组织的管理员签名"(Rule则是:超过半数,子策略是:组织的管理员签名)。
      应用场景是:用于配置管理相关的操作比如:通道创建策略、通道配置策略等,以及从Orderer读取通道配置的策略,或者访问Peer获取区块的策略等等。
      ImplicitMetaPolicy类型Rule的格式为:
      <ANY|ALL|MAJORITY> <SubPolicyName>。
      如:Rule: ANY Readers表示任意子节点中的Reader策略。
    Organizations:
    
        # SampleOrg defines an MSP using the sampleconfig.  It should never be used
        # in production but may be used as a template for other definitions
        - &OrdererOrg
            # DefaultOrg defines the organization which is used in the sampleconfig
            # of the fabric.git development environment
            Name: OrdererOrg
    
            # ID to load the MSP definition as
            ID: OrdererMSP
    
            # MSPDir is the filesystem path which contains the MSP configuration
            MSPDir: crypto-config/ordererOrganizations/example.com/msp
    
            # Policies defines the set of policies at this level of the config tree
            # For organization policies, their canonical path is usually
            #   /Channel/<Application|Orderer>/<OrgName>/<PolicyName>
            Policies:
                Readers:
                    Type: Signature
                    Rule: "OR('OrdererMSP.member')"
                Writers:
                    Type: Signature
                    Rule: "OR('OrdererMSP.member')"
                Admins:
                    Type: Signature
                    Rule: "OR('OrdererMSP.admin')"
    
        - &Org1
            # DefaultOrg defines the organization which is used in the sampleconfig
            # of the fabric.git development environment
            Name: Org1MSP
    
            # ID to load the MSP definition as
            ID: Org1MSP
    
            MSPDir: crypto-config/peerOrganizations/org1.example.com/msp
    
            # Policies defines the set of policies at this level of the config tree
            # For organization policies, their canonical path is usually
            #   /Channel/<Application|Orderer>/<OrgName>/<PolicyName>
            Policies:
                Readers:
                    Type: Signature
                    Rule: "OR('Org1MSP.admin', 'Org1MSP.peer', 'Org1MSP.client')"
                Writers:
                    Type: Signature
                    Rule: "OR('Org1MSP.admin', 'Org1MSP.client')"
                Admins:
                    Type: Signature
                    Rule: "OR('Org1MSP.admin')"
    
            # leave this flag set to true.
            AnchorPeers:
                # AnchorPeers defines the location of peers which can be used
                # for cross org gossip communication.  Note, this value is only
                # encoded in the genesis block in the Application section context
                - Host: peer0.org1.example.com
                  Port: 7051
    
        - &Org2
            # DefaultOrg defines the organization which is used in the sampleconfig
            # of the fabric.git development environment
            Name: Org2MSP
    
            # ID to load the MSP definition as
            ID: Org2MSP
    
            MSPDir: crypto-config/peerOrganizations/org2.example.com/msp
    
            # Policies defines the set of policies at this level of the config tree
            # For organization policies, their canonical path is usually
            #   /Channel/<Application|Orderer>/<OrgName>/<PolicyName>
            Policies:
                Readers:
                    Type: Signature
                    Rule: "OR('Org2MSP.admin', 'Org2MSP.peer', 'Org2MSP.client')"
                Writers:
                    Type: Signature
                    Rule: "OR('Org2MSP.admin', 'Org2MSP.client')"
                Admins:
                    Type: Signature
                    Rule: "OR('Org2MSP.admin')"
    
            AnchorPeers:
                # AnchorPeers defines the location of peers which can be used
                # for cross org gossip communication.  Note, this value is only
                # encoded in the genesis block in the Application section context
                - Host: peer0.org2.example.com
                  Port: 9051
    

    1.4 Orderer / 排序节点配置

    Orderer配置段用来定义要编码写入创世区块或通道交易的排序节点参数。

    配置参数名 含义
    OrdererType 类型solo或者kafka
    Addresses Orderer地址
    BatchTimeout 区块生成超时时间
    MaxMessageCount 区块消息数量
    AbsoluteMaxBytes 区块绝对最大字节数
    PreferredMaxBytes 建议消息字节数
    Brokers kafka地址
    Orderer: &OrdererDefaults
    
        # Orderer Type: The orderer implementation to start
        # Available types are "solo","kafka"  and "etcdraft"
        OrdererType: solo
    
        Addresses:
            - orderer.example.com:7050
    
        # Batch Timeout: The amount of time to wait before creating a batch
        BatchTimeout: 2s
    
        # Batch Size: Controls the number of messages batched into a block
        BatchSize:
    
            # Max Message Count: The maximum number of messages to permit in a batch
            MaxMessageCount: 10
    
            # Absolute Max Bytes: The absolute maximum number of bytes allowed for
            # the serialized messages in a batch.
            AbsoluteMaxBytes: 99 MB
    
            # Preferred Max Bytes: The preferred maximum number of bytes allowed for
            # the serialized messages in a batch. A message larger than the preferred
            # max bytes will result in a batch larger than preferred max bytes.
            PreferredMaxBytes: 512 KB
    
        Kafka:
            # Brokers: A list of Kafka brokers to which the orderer connects
            # NOTE: Use IP:port notation
            Brokers:
                - 127.0.0.1:9092
    
        # EtcdRaft defines configuration which must be set when the "etcdraft"
        # orderertype is chosen.
        EtcdRaft:
            # The set of Raft replicas for this network. For the etcd/raft-based
            # implementation, we expect every replica to also be an OSN. Therefore,
            # a subset of the host:port items enumerated in this list should be
            # replicated under the Orderer.Addresses key above.
            Consenters:
                - Host: orderer.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer.example.com/tls/server.crt
                - Host: orderer2.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer2.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer2.example.com/tls/server.crt
                - Host: orderer3.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer3.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer3.example.com/tls/server.crt
                - Host: orderer4.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer4.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer4.example.com/tls/server.crt
                - Host: orderer5.example.com
                  Port: 7050
                  ClientTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer5.example.com/tls/server.crt
                  ServerTLSCert: crypto-config/ordererOrganizations/example.com/orderers/orderer5.example.com/tls/server.crt
    
        # Organizations is the list of orgs which are defined as participants on
        # the orderer side of the network
        Organizations:
    
        # Policies defines the set of policies at this level of the config tree
        # For Orderer policies, their canonical path is
        #   /Channel/Orderer/<PolicyName>
        Policies:
            Readers:
                Type: ImplicitMeta
                Rule: "ANY Readers"
            Writers:
                Type: ImplicitMeta
                Rule: "ANY Writers"
            Admins:
                Type: ImplicitMeta
                Rule: "MAJORITY Admins"
            # BlockValidation specifies what signatures must be included in the block
            # from the orderer for the peer to validate it.
            BlockValidation:
                Type: ImplicitMeta
                Rule: "ANY Writers"
    

    1.5 Channel / 通道配置

    Channel配置段用来定义要写入创世区块或配置交易的通道参数。

    Channel: &ChannelDefaults
        # Policies defines the set of policies at this level of the config tree
        # For Channel policies, their canonical path is
        #   /Channel/<PolicyName>
        Policies:
            # Who may invoke the 'Deliver' API
            Readers:
                Type: ImplicitMeta
                Rule: "ANY Readers"
            # Who may invoke the 'Broadcast' API
            Writers:
                Type: ImplicitMeta
                Rule: "ANY Writers"
            # By default, who may modify elements at this config level
            Admins:
                Type: ImplicitMeta
                Rule: "MAJORITY Admins"
    
        # Capabilities describes the channel level capabilities, see the
        # dedicated Capabilities section elsewhere in this file for a full
        # description
        Capabilities:
            <<: *ChannelCapabilities
    

    1.6 Application / 应用配置

    Application配置段用来定义要写入创世区块或配置交易的应用参数。

    Application: &ApplicationDefaults
    
        # Organizations is the list of orgs which are defined as participants on
        # the application side of the network
        Organizations:
    
        # Policies defines the set of policies at this level of the config tree
        # For Application policies, their canonical path is
        #   /Channel/Application/<PolicyName>
        Policies:
            Readers:
                Type: ImplicitMeta
                Rule: "ANY Readers"
            Writers:
                Type: ImplicitMeta
                Rule: "ANY Writers"
            Admins:
                Type: ImplicitMeta
                Rule: "MAJORITY Admins"
    
        Capabilities:
            <<: *ApplicationCapabilities
    

    2 core.yaml

    core.yaml配置文件是Peer节点的示例配置文件,该core.yaml示例配置文件中共指定了六大部分内容。

    在Fabirc源码中的路径为:$GOPATH/src/github.com/hyperledger/fabric/sampleconfig/core.yaml

    2.1 peer部分

    peer:
    
        # The Peer id is used for identifying this Peer instance.
        id: jdoe
    
        # The networkId allows for logical seperation of networks
        networkId: dev
    
        # The Address at local network interface this Peer will listen on.
        # By default, it will listen on all network interfaces
        listenAddress: 0.0.0.0:7051
    
        # The endpoint this peer uses to listen for inbound chaincode connections.
        # If this is commented-out, the listen address is selected to be
        # the peer's address (see below) with port 7052
        # chaincodeListenAddress: 0.0.0.0:7052
    
        # The endpoint the chaincode for this peer uses to connect to the peer.
        # If this is not specified, the chaincodeListenAddress address is selected.
        # And if chaincodeListenAddress is not specified, address is selected from
        # peer listenAddress.
        # chaincodeAddress: 0.0.0.0:7052
    
        # When used as peer config, this represents the endpoint to other peers
        # in the same organization. For peers in other organization, see
        # gossip.externalEndpoint for more info.
        # When used as CLI config, this means the peer's endpoint to interact with
        address: 0.0.0.0:7051
    
        # Whether the Peer should programmatically determine its address
        # This case is useful for docker containers.
        addressAutoDetect: false
    
        # Setting for runtime.GOMAXPROCS(n). If n < 1, it does not change the
        # current setting
        gomaxprocs: -1
    
        # Keepalive settings for peer server and clients
        keepalive:
            # MinInterval is the minimum permitted time between client pings.
            # If clients send pings more frequently, the peer server will
            # disconnect them
            minInterval: 60s
            # Client keepalive settings for communicating with other peer nodes
            client:
                # Interval is the time between pings to peer nodes.  This must
                # greater than or equal to the minInterval specified by peer
                # nodes
                interval: 60s
                # Timeout is the duration the client waits for a response from
                # peer nodes before closing the connection
                timeout: 20s
            # DeliveryClient keepalive settings for communication with ordering
            # nodes.
            deliveryClient:
                # Interval is the time between pings to ordering nodes.  This must
                # greater than or equal to the minInterval specified by ordering
                # nodes.
                interval: 60s
                # Timeout is the duration the client waits for a response from
                # ordering nodes before closing the connection
                timeout: 20s
    
    
        # Gossip related configuration
        gossip:
            # Bootstrap set to initialize gossip with.
            # This is a list of other peers that this peer reaches out to at startup.
            # Important: The endpoints here have to be endpoints of peers in the same
            # organization, because the peer would refuse connecting to these endpoints
            # unless they are in the same organization as the peer.
            bootstrap: 127.0.0.1:7051
    
            # NOTE: orgLeader and useLeaderElection parameters are mutual exclusive.
            # Setting both to true would result in the termination of the peer
            # since this is undefined state. If the peers are configured with
            # useLeaderElection=false, make sure there is at least 1 peer in the
            # organization that its orgLeader is set to true.
    
            # Defines whenever peer will initialize dynamic algorithm for
            # "leader" selection, where leader is the peer to establish
            # connection with ordering service and use delivery protocol
            # to pull ledger blocks from ordering service. It is recommended to
            # use leader election for large networks of peers.
            useLeaderElection: true
            # Statically defines peer to be an organization "leader",
            # where this means that current peer will maintain connection
            # with ordering service and disseminate block across peers in
            # its own organization
            orgLeader: false
    
            # Interval for membershipTracker polling
            membershipTrackerInterval: 5s
    
            # Overrides the endpoint that the peer publishes to peers
            # in its organization. For peers in foreign organizations
            # see 'externalEndpoint'
            endpoint:
            # Maximum count of blocks stored in memory
            maxBlockCountToStore: 100
            # Max time between consecutive message pushes(unit: millisecond)
            maxPropagationBurstLatency: 10ms
            # Max number of messages stored until a push is triggered to remote peers
            maxPropagationBurstSize: 10
            # Number of times a message is pushed to remote peers
            propagateIterations: 1
            # Number of peers selected to push messages to
            propagatePeerNum: 3
            # Determines frequency of pull phases(unit: second)
            # Must be greater than digestWaitTime + responseWaitTime
            pullInterval: 4s
            # Number of peers to pull from
            pullPeerNum: 3
            # Determines frequency of pulling state info messages from peers(unit: second)
            requestStateInfoInterval: 4s
            # Determines frequency of pushing state info messages to peers(unit: second)
            publishStateInfoInterval: 4s
            # Maximum time a stateInfo message is kept until expired
            stateInfoRetentionInterval:
            # Time from startup certificates are included in Alive messages(unit: second)
            publishCertPeriod: 10s
            # Should we skip verifying block messages or not (currently not in use)
            skipBlockVerification: false
            # Dial timeout(unit: second)
            dialTimeout: 3s
            # Connection timeout(unit: second)
            connTimeout: 2s
            # Buffer size of received messages
            recvBuffSize: 20
            # Buffer size of sending messages
            sendBuffSize: 200
            # Time to wait before pull engine processes incoming digests (unit: second)
            # Should be slightly smaller than requestWaitTime
            digestWaitTime: 1s
            # Time to wait before pull engine removes incoming nonce (unit: milliseconds)
            # Should be slightly bigger than digestWaitTime
            requestWaitTime: 1500ms
            # Time to wait before pull engine ends pull (unit: second)
            responseWaitTime: 2s
            # Alive check interval(unit: second)
            aliveTimeInterval: 5s
            # Alive expiration timeout(unit: second)
            aliveExpirationTimeout: 25s
            # Reconnect interval(unit: second)
            reconnectInterval: 25s
            # This is an endpoint that is published to peers outside of the organization.
            # If this isn't set, the peer will not be known to other organizations.
            externalEndpoint:
            # Leader election service configuration
            election:
                # Longest time peer waits for stable membership during leader election startup (unit: second)
                startupGracePeriod: 15s
                # Interval gossip membership samples to check its stability (unit: second)
                membershipSampleInterval: 1s
                # Time passes since last declaration message before peer decides to perform leader election (unit: second)
                leaderAliveThreshold: 10s
                # Time between peer sends propose message and declares itself as a leader (sends declaration message) (unit: second)
                leaderElectionDuration: 5s
    
            pvtData:
                # pullRetryThreshold determines the maximum duration of time private data corresponding for a given block
                # would be attempted to be pulled from peers until the block would be committed without the private data
                pullRetryThreshold: 60s
                # As private data enters the transient store, it is associated with the peer's ledger's height at that time.
                # transientstoreMaxBlockRetention defines the maximum difference between the current ledger's height upon commit,
                # and the private data residing inside the transient store that is guaranteed not to be purged.
                # Private data is purged from the transient store when blocks with sequences that are multiples
                # of transientstoreMaxBlockRetention are committed.
                transientstoreMaxBlockRetention: 1000
                # pushAckTimeout is the maximum time to wait for an acknowledgement from each peer
                # at private data push at endorsement time.
                pushAckTimeout: 3s
                # Block to live pulling margin, used as a buffer
                # to prevent peer from trying to pull private data
                # from peers that is soon to be purged in next N blocks.
                # This helps a newly joined peer catch up to current
                # blockchain height quicker.
                btlPullMargin: 10
                # the process of reconciliation is done in an endless loop, while in each iteration reconciler tries to
                # pull from the other peers the most recent missing blocks with a maximum batch size limitation.
                # reconcileBatchSize determines the maximum batch size of missing private data that will be reconciled in a
                # single iteration.
                reconcileBatchSize: 10
                # reconcileSleepInterval determines the time reconciler sleeps from end of an iteration until the beginning
                # of the next reconciliation iteration.
                reconcileSleepInterval: 1m
                # reconciliationEnabled is a flag that indicates whether private data reconciliation is enable or not.
                reconciliationEnabled: true
                # skipPullingInvalidTransactionsDuringCommit is a flag that indicates whether pulling of invalid
                # transaction's private data from other peers need to be skipped during the commit time and pulled
                # only through reconciler.
                skipPullingInvalidTransactionsDuringCommit: false
    
            # Gossip state transfer related configuration
            state:
                # indicates whenever state transfer is enabled or not
                # default value is true, i.e. state transfer is active
                # and takes care to sync up missing blocks allowing
                # lagging peer to catch up to speed with rest network
                enabled: true
                # checkInterval interval to check whether peer is lagging behind enough to
                # request blocks via state transfer from another peer.
                checkInterval: 10s
                # responseTimeout amount of time to wait for state transfer response from
                # other peers
                responseTimeout: 3s
                # batchSize the number of blocks to request via state transfer from another peer
                batchSize: 10
                # blockBufferSize reflect the maximum distance between lowest and
                # highest block sequence number state buffer to avoid holes.
                # In order to ensure absence of the holes actual buffer size
                # is twice of this distance
                blockBufferSize: 100
                # maxRetries maximum number of re-tries to ask
                # for single state transfer request
                maxRetries: 3
    
        # TLS Settings
        # Note that peer-chaincode connections through chaincodeListenAddress is
        # not mutual TLS auth. See comments on chaincodeListenAddress for more info
        tls:
            # Require server-side TLS
            enabled:  false
            # Require client certificates / mutual TLS.
            # Note that clients that are not configured to use a certificate will
            # fail to connect to the peer.
            clientAuthRequired: false
            # X.509 certificate used for TLS server
            cert:
                file: tls/server.crt
            # Private key used for TLS server (and client if clientAuthEnabled
            # is set to true
            key:
                file: tls/server.key
            # Trusted root certificate chain for tls.cert
            rootcert:
                file: tls/ca.crt
            # Set of root certificate authorities used to verify client certificates
            clientRootCAs:
                files:
                  - tls/ca.crt
            # Private key used for TLS when making client connections.  If
            # not set, peer.tls.key.file will be used instead
            clientKey:
                file:
            # X.509 certificate used for TLS when making client connections.
            # If not set, peer.tls.cert.file will be used instead
            clientCert:
                file:
    
        # Authentication contains configuration parameters related to authenticating
        # client messages
        authentication:
            # the acceptable difference between the current server time and the
            # client's time as specified in a client request message
            timewindow: 15m
    
        # Path on the file system where peer will store data (eg ledger). This
        # location must be access control protected to prevent unintended
        # modification that might corrupt the peer operations.
        fileSystemPath: /var/hyperledger/production
    
        # BCCSP (Blockchain crypto provider): Select which crypto implementation or
        # library to use
        BCCSP:
            Default: SW
            # Settings for the SW crypto provider (i.e. when DEFAULT: SW)
            SW:
                # TODO: The default Hash and Security level needs refactoring to be
                # fully configurable. Changing these defaults requires coordination
                # SHA2 is hardcoded in several places, not only BCCSP
                Hash: SHA2
                Security: 256
                # Location of Key Store
                FileKeyStore:
                    # If "", defaults to 'mspConfigPath'/keystore
                    KeyStore:
            # Settings for the PKCS#11 crypto provider (i.e. when DEFAULT: PKCS11)
            PKCS11:
                # Location of the PKCS11 module library
                Library:
                # Token Label
                Label:
                # User PIN
                Pin:
                Hash:
                Security:
                FileKeyStore:
                    KeyStore:
    
        # Path on the file system where peer will find MSP local configurations
        mspConfigPath: msp
    
        # Identifier of the local MSP
        # ----!!!!IMPORTANT!!!-!!!IMPORTANT!!!-!!!IMPORTANT!!!!----
        # Deployers need to change the value of the localMspId string.
        # In particular, the name of the local MSP ID of a peer needs
        # to match the name of one of the MSPs in each of the channel
        # that this peer is a member of. Otherwise this peer's messages
        # will not be identified as valid by other nodes.
        localMspId: SampleOrg
    
        # CLI common client config options
        client:
            # connection timeout
            connTimeout: 3s
    
        # Delivery service related config
        deliveryclient:
            # The total time to spend retrying connections to ordering nodes
            # before giving up and returning an error.
            reconnectTotalTimeThreshold: 3600s
    
            # The connection timeout when connecting to ordering service nodes.
            connTimeout: 3s
    
            # The maximum delay between consecutive connection retry attempts to
            # ordering nodes.
            reConnectBackoffThreshold: 3600s
    
            # A list of orderer endpoint addresses which should be overridden
            # when found in channel configurations.
            addressOverrides:
            #  - from:
            #    to:
            #    caCertsFile:
            #  - from:
            #    to:
            #    caCertsFile:
    
        # Type for the local MSP - by default it's of type bccsp
        localMspType: bccsp
    
        # Used with Go profiling tools only in none production environment. In
        # production, it should be disabled (eg enabled: false)
        profile:
            enabled:     false
            listenAddress: 0.0.0.0:6060
    
        # The admin service is used for administrative operations such as
        # control over logger levels, etc.
        # Only peer administrators can use the service.
        adminService:
            # The interface and port on which the admin server will listen on.
            # If this is commented out, or the port number is equal to the port
            # of the peer listen address - the admin service is attached to the
            # peer's service (defaults to 7051).
            #listenAddress: 0.0.0.0:7055
    
        # Handlers defines custom handlers that can filter and mutate
        # objects passing within the peer, such as:
        #   Auth filter - reject or forward proposals from clients
        #   Decorators  - append or mutate the chaincode input passed to the chaincode
        #   Endorsers   - Custom signing over proposal response payload and its mutation
        # Valid handler definition contains:
        #   - A name which is a factory method name defined in
        #     core/handlers/library/library.go for statically compiled handlers
        #   - library path to shared object binary for pluggable filters
        # Auth filters and decorators are chained and executed in the order that
        # they are defined. For example:
        # authFilters:
        #   -
        #     name: FilterOne
        #     library: /opt/lib/filter.so
        #   -
        #     name: FilterTwo
        # decorators:
        #   -
        #     name: DecoratorOne
        #   -
        #     name: DecoratorTwo
        #     library: /opt/lib/decorator.so
        # Endorsers are configured as a map that its keys are the endorsement system chaincodes that are being overridden.
        # Below is an example that overrides the default ESCC and uses an endorsement plugin that has the same functionality
        # as the default ESCC.
        # If the 'library' property is missing, the name is used as the constructor method in the builtin library similar
        # to auth filters and decorators.
        # endorsers:
        #   escc:
        #     name: DefaultESCC
        #     library: /etc/hyperledger/fabric/plugin/escc.so
        handlers:
            authFilters:
              -
                name: DefaultAuth
              -
                name: ExpirationCheck    # This filter checks identity x509 certificate expiration
            decorators:
              -
                name: DefaultDecorator
            endorsers:
              escc:
                name: DefaultEndorsement
                library:
            validators:
              vscc:
                name: DefaultValidation
                library:
    
        #    library: /etc/hyperledger/fabric/plugin/escc.so
        # Number of goroutines that will execute transaction validation in parallel.
        # By default, the peer chooses the number of CPUs on the machine. Set this
        # variable to override that choice.
        # NOTE: overriding this value might negatively influence the performance of
        # the peer so please change this value only if you know what you're doing
        validatorPoolSize:
    
        # The discovery service is used by clients to query information about peers,
        # such as - which peers have joined a certain channel, what is the latest
        # channel config, and most importantly - given a chaincode and a channel,
        # what possible sets of peers satisfy the endorsement policy.
        discovery:
            enabled: true
            # Whether the authentication cache is enabled or not.
            authCacheEnabled: true
            # The maximum size of the cache, after which a purge takes place
            authCacheMaxSize: 1000
            # The proportion (0 to 1) of entries that remain in the cache after the cache is purged due to overpopulation
            authCachePurgeRetentionRatio: 0.75
            # Whether to allow non-admins to perform non channel scoped queries.
            # When this is false, it means that only peer admins can perform non channel scoped queries.
            orgMembersAllowedAccess: false
    

    2.2 VM部分

    vm:
    
        # Endpoint of the vm management system.  For docker can be one of the following in general
        # unix:///var/run/docker.sock
        # http://localhost:2375
        # https://localhost:2376
        endpoint: unix:///var/run/docker.sock
    
        # settings for docker vms
        docker:
            tls:
                enabled: false
                ca:
                    file: docker/ca.crt
                cert:
                    file: docker/tls.crt
                key:
                    file: docker/tls.key
    
            # Enables/disables the standard out/err from chaincode containers for
            # debugging purposes
            attachStdout: false
    
            # Parameters on creating docker container.
            # Container may be efficiently created using ipam & dns-server for cluster
            # NetworkMode - sets the networking mode for the container. Supported
            # standard values are: `host`(default),`bridge`,`ipvlan`,`none`.
            # Dns - a list of DNS servers for the container to use.
            # Note:  `Privileged` `Binds` `Links` and `PortBindings` properties of
            # Docker Host Config are not supported and will not be used if set.
            # LogConfig - sets the logging driver (Type) and related options
            # (Config) for Docker. For more info,
            # https://docs.docker.com/engine/admin/logging/overview/
            # Note: Set LogConfig using Environment Variables is not supported.
            hostConfig:
                NetworkMode: host
                Dns:
                   # - 192.168.0.1
                LogConfig:
                    Type: json-file
                    Config:
                        max-size: "50m"
                        max-file: "5"
                Memory: 2147483648
    

    2.3 链码部分

    chaincode:
    
        # The id is used by the Chaincode stub to register the executing Chaincode
        # ID with the Peer and is generally supplied through ENV variables
        # the `path` form of ID is provided when installing the chaincode.
        # The `name` is used for all other requests and can be any string.
        id:
            path:
            name:
    
        # Generic builder environment, suitable for most chaincode types
        builder: $(DOCKER_NS)/fabric-ccenv:latest
    
        # Enables/disables force pulling of the base docker images (listed below)
        # during user chaincode instantiation.
        # Useful when using moving image tags (such as :latest)
        pull: false
    
        golang:
            # golang will never need more than baseos
            runtime: $(BASE_DOCKER_NS)/fabric-baseos:$(ARCH)-$(BASE_VERSION)
    
            # whether or not golang chaincode should be linked dynamically
            dynamicLink: false
    
        car:
            # car may need more facilities (JVM, etc) in the future as the catalog
            # of platforms are expanded.  For now, we can just use baseos
            runtime: $(BASE_DOCKER_NS)/fabric-baseos:$(ARCH)-$(BASE_VERSION)
    
        java:
            # This is an image based on java:openjdk-8 with addition compiler
            # tools added for java shim layer packaging.
            # This image is packed with shim layer libraries that are necessary
            # for Java chaincode runtime.
            runtime: $(DOCKER_NS)/fabric-javaenv:$(TWO_DIGIT_VERSION)
    
        node:
            # need node.js engine at runtime, currently available in baseimage
            # but not in baseos
            runtime: $(BASE_DOCKER_NS)/fabric-baseimage:$(ARCH)-$(BASE_VERSION)
    
        # Timeout duration for starting up a container and waiting for Register
        # to come through. 1sec should be plenty for chaincode unit tests
        startuptimeout: 300s
    
        # Timeout duration for Invoke and Init calls to prevent runaway.
        # This timeout is used by all chaincodes in all the channels, including
        # system chaincodes.
        # Note that during Invoke, if the image is not available (e.g. being
        # cleaned up when in development environment), the peer will automatically
        # build the image, which might take more time. In production environment,
        # the chaincode image is unlikely to be deleted, so the timeout could be
        # reduced accordingly.
        executetimeout: 30s
    
        # There are 2 modes: "dev" and "net".
        # In dev mode, user runs the chaincode after starting peer from
        # command line on local machine.
        # In net mode, peer will run chaincode in a docker container.
        mode: net
    
        # keepalive in seconds. In situations where the communiction goes through a
        # proxy that does not support keep-alive, this parameter will maintain connection
        # between peer and chaincode.
        # A value <= 0 turns keepalive off
        keepalive: 0
    
        # system chaincodes whitelist. To add system chaincode "myscc" to the
        # whitelist, add "myscc: enable" to the list below, and register in
        # chaincode/importsysccs.go
        system:
            cscc: enable
            lscc: enable
            escc: enable
            vscc: enable
            qscc: enable
    
        # System chaincode plugins:
        # System chaincodes can be loaded as shared objects compiled as Go plugins.
        # See examples/plugins/scc for an example.
        # Plugins must be white listed in the chaincode.system section above.
        systemPlugins:
          # example configuration:
          # - enabled: true
          #   name: myscc
          #   path: /opt/lib/myscc.so
          #   invokableExternal: true
          #   invokableCC2CC: true
    
        # Logging section for the chaincode container
        logging:
          # Default level for all loggers within the chaincode container
          level:  info
          # Override default level for the 'shim' logger
          shim:   warning
          # Format for the chaincode container logs
          format: '%{color}%{time:2006-01-02 15:04:05.000 MST} [%{module}] %{shortfunc} -> %{level:.4s} %{id:03x}%{color:reset} %{message}'
    

    2.4 账本部分

    ledger:
    
      blockchain:
    
      state:
        # stateDatabase - options are "goleveldb", "CouchDB"
        # goleveldb - default state database stored in goleveldb.
        # CouchDB - store state database in CouchDB
        stateDatabase: goleveldb
        # Limit on the number of records to return per query
        totalQueryLimit: 100000
        couchDBConfig:
           # It is recommended to run CouchDB on the same server as the peer, and
           # not map the CouchDB container port to a server port in docker-compose.
           # Otherwise proper security must be provided on the connection between
           # CouchDB client (on the peer) and server.
           couchDBAddress: 127.0.0.1:5984
           # This username must have read and write authority on CouchDB
           username:
           # The password is recommended to pass as an environment variable
           # during start up (eg CORE_LEDGER_STATE_COUCHDBCONFIG_PASSWORD).
           # If it is stored here, the file must be access control protected
           # to prevent unintended users from discovering the password.
           password:
           # Number of retries for CouchDB errors
           maxRetries: 3
           # Number of retries for CouchDB errors during peer startup
           maxRetriesOnStartup: 12
           # CouchDB request timeout (unit: duration, e.g. 20s)
           requestTimeout: 35s
           # Limit on the number of records per each CouchDB query
           # Note that chaincode queries are only bound by totalQueryLimit.
           # Internally the chaincode may execute multiple CouchDB queries,
           # each of size internalQueryLimit.
           internalQueryLimit: 1000
           # Limit on the number of records per CouchDB bulk update batch
           maxBatchUpdateSize: 1000
           # Warm indexes after every N blocks.
           # This option warms any indexes that have been
           # deployed to CouchDB after every N blocks.
           # A value of 1 will warm indexes after every block commit,
           # to ensure fast selector queries.
           # Increasing the value may improve write efficiency of peer and CouchDB,
           # but may degrade query response time.
           warmIndexesAfterNBlocks: 1
           # Create the _global_changes system database
           # This is optional.  Creating the global changes database will require
           # additional system resources to track changes and maintain the database
           createGlobalChangesDB: false
    
      history:
        # enableHistoryDatabase - options are true or false
        # Indicates if the history of key updates should be stored.
        # All history 'index' will be stored in goleveldb, regardless if using
        # CouchDB or alternate database for the state.
        enableHistoryDatabase: true
    

    2.5 operation部分

    operations:
        # host and port for the operations server
        listenAddress: 127.0.0.1:9443
    
        # TLS configuration for the operations endpoint
        tls:
            # TLS enabled
            enabled: false
    
            # path to PEM encoded server certificate for the operations server
            cert:
                file:
    
            # path to PEM encoded server key for the operations server
            key:
                file:
    
            # most operations service endpoints require client authentication when TLS
            # is enabled. clientAuthRequired requires client certificate authentication
            # at the TLS layer to access all resources.
            clientAuthRequired: false
    
            # paths to PEM encoded ca certificates to trust for client authentication
            clientRootCAs:
                files: []
    

    2.6 metrics部分

    metrics:
        # metrics provider is one of statsd, prometheus, or disabled
        provider: disabled
    
        # statsd configuration
        statsd:
            # network type: tcp or udp
            network: udp
    
            # statsd server address
            address: 127.0.0.1:8125
    
            # the interval at which locally cached counters and gauges are pushed
            # to statsd; timings are pushed immediately
            writeInterval: 10s
    
            # prefix is prepended to all emitted statsd metrics
            prefix:
    
    

    3 orderer.yaml

    orderer.yaml 配置文件是 Orderer 节点的示例配置文件,该 orderer.yaml 示例配置文件中共指定了五大部分内容。

    在 Fabirc 源码中的路径为:$GOPATH/src/github.com/hyperledger/fabric/sampleconfig/orderer.yaml

    3.1 General部分

    General:
        LedgerType: file   #指定账本类型(可选file、RAM、json三种)
        ListenAddress: 127.0.0.1  #监听地址
        ListenPort: 7050  #监听端口号
    
        # GRPC服务的TLS设置
        TLS:
            Enabled: false  #默认不开启
            PrivateKey: tls/server.key  #签名的私钥文件
            Certificate: tls/server.crt  #证书文件
            RootCAs:   #根CA证书
              - tls/ca.crt
            ClientAuthRequired: false
            ClientRootCAs:
        # GRPC服务的激活设置
        Keepalive:
            ServerMinInterval: 60s    # 客户端ping的最小允许时间
            ServerInterval: 7200s     # 连接到客户端的时间
            ServerTimeout: 20s       # 服务器等待的超时时间
        # Cluster settings for ordering service nodes that communicate with other ordering service nodes
        # such as Raft based ordering service.
        Cluster:
            # SendBufferSize is the maximum number of messages in the egress buffer.
            # Consensus messages are dropped if the buffer is full, and transaction
            # messages are waiting for space to be freed.
            SendBufferSize: 10
            # ClientCertificate governs the file location of the client TLS certificate
            # used to establish mutual TLS connections with other ordering service nodes.
            ClientCertificate:
            # ClientPrivateKey governs the file location of the private key of the client TLS certificate.
            ClientPrivateKey:
            # The below 4 properties should be either set together, or be unset together.
            # If they are set, then the orderer node uses a separate listener for intra-cluster
            # communication. If they are unset, then the general orderer listener is used.
            # This is useful if you want to use a different TLS server certificates on the
            # client-facing and the intra-cluster listeners.
    
            # ListenPort defines the port on which the cluster listens to connections.
            ListenPort:
            # ListenAddress defines the IP on which to listen to intra-cluster communication.
            ListenAddress:
            # ServerCertificate defines the file location of the server TLS certificate used for intra-cluster
            # communication.
            ServerCertificate:
            # ServerPrivateKey defines the file location of the private key of the TLS certificate.
            ServerPrivateKey:
    
        GenesisMethod: provisional  # 生成初始区块的提供方式(可选provisional、file两种)
        GenesisProfile: SampleInsecureSolo   # 用于动态生成初始区块的概要
        GenesisFile: genesisblock   # 生成初始区块的配置文件 
    
        LocalMSPDir: msp # MSP目录
        LocalMSPID: SampleOrg  # MSP ID
    
        # 是否为Go启用HTTP服务
        Profile:
            Enabled: false
            Address: 0.0.0.0:6060
    
        # 区块链加密实现
        BCCSP:
            #  - SW: # 软件加密
            #  - PKCS11: # CA硬件加密
            Default: SW   # 默认使用SW加密
    
            SW:
                Hash: SHA2
                Security: 256
                FileKeyStore:
                    KeyStore:
    
            PKCS11:
                Library:
                Label:
                Pin:
                Hash:
                Security:
                FileKeyStore:
                    KeyStore:
    
     authenticating
        Authentication:
            TimeWindow: 15m  # 当前服务器时间与客户端请求消息中可接受的时间差
    

    3.2 FileLedger部分

    文件账本配置信息

    FileLedger:
        Location: /var/hyperledger/production/orderer  //区块的存储路径
        Prefix: hyperledger-fabric-ordererledger  //临时空间中创建账本目录时使用的前缀
    

    3.3 RAMLedger部分

    内存账本配置信息

    RAMLedger:
        HistorySize: 1000  //如果设置成保存在内存中,保留的最大区块数
    

    3.4 Kafka部分

    Kafka 集群的配置信息

    Kafka:
    
        # Retry: What do if a connection to the Kafka cluster cannot be established,
        # or if a metadata request to the Kafka cluster needs to be repeated.
        Retry:
            # When a new channel is created, or when an existing channel is reloaded
            # (in case of a just-restarted orderer), the orderer interacts with the
            # Kafka cluster in the following ways:
            # 1. It creates a Kafka producer (writer) for the Kafka partition that
            # corresponds to the channel.
            # 2. It uses that producer to post a no-op CONNECT message to that
            # partition
            # 3. It creates a Kafka consumer (reader) for that partition.
            # If any of these steps fail, they will be re-attempted every
            # <ShortInterval> for a total of <ShortTotal>, and then every
            # <LongInterval> for a total of <LongTotal> until they succeed.
            # Note that the orderer will be unable to write to or read from a
            # channel until all of the steps above have been completed successfully.
            ShortInterval: 5s
            ShortTotal: 10m
            LongInterval: 5m
            LongTotal: 12h
            # Affects the socket timeouts when waiting for an initial connection, a
            # response, or a transmission. See Config.Net for more info:
            # https://godoc.org/github.com/Shopify/sarama#Config
            NetworkTimeouts:
                DialTimeout: 10s
                ReadTimeout: 10s
                WriteTimeout: 10s
            # Affects the metadata requests when the Kafka cluster is in the middle
            # of a leader election.See Config.Metadata for more info:
            # https://godoc.org/github.com/Shopify/sarama#Config
            Metadata:
                RetryBackoff: 250ms
                RetryMax: 3
            # What to do if posting a message to the Kafka cluster fails. See
            # Config.Producer for more info:
            # https://godoc.org/github.com/Shopify/sarama#Config
            Producer:
                RetryBackoff: 100ms
                RetryMax: 3
            # What to do if reading from the Kafka cluster fails. See
            # Config.Consumer for more info:
            # https://godoc.org/github.com/Shopify/sarama#Config
            Consumer:
                RetryBackoff: 2s
        # Settings to use when creating Kafka topics.  Only applies when
        # Kafka.Version is v0.10.1.0 or higher
        Topic:
            # The number of Kafka brokers across which to replicate the topic
            ReplicationFactor: 3
        # Verbose: Enable logging for interactions with the Kafka cluster.
        Verbose: false
    
        # TLS: TLS settings for the orderer's connection to the Kafka cluster.
        TLS:
    
          # Enabled: Use TLS when connecting to the Kafka cluster.
          Enabled: false
    
          # PrivateKey: PEM-encoded private key the orderer will use for
          # authentication.
          PrivateKey:
            # As an alternative to specifying the PrivateKey here, uncomment the
            # following "File" key and specify the file name from which to load the
            # value of PrivateKey.
            #File: path/to/PrivateKey
    
          # Certificate: PEM-encoded signed public key certificate the orderer will
          # use for authentication.
          Certificate:
            # As an alternative to specifying the Certificate here, uncomment the
            # following "File" key and specify the file name from which to load the
            # value of Certificate.
            #File: path/to/Certificate
    
          # RootCAs: PEM-encoded trusted root certificates used to validate
          # certificates from the Kafka cluster.
          RootCAs:
            # As an alternative to specifying the RootCAs here, uncomment the
            # following "File" key and specify the file name from which to load the
            # value of RootCAs.
            #File: path/to/RootCAs
    
        # SASLPlain: Settings for using SASL/PLAIN authentication with Kafka brokers
        SASLPlain:
          # Enabled: Use SASL/PLAIN to authenticate with Kafka brokers
          Enabled: false
          # User: Required when Enabled is set to true
          User:
          # Password: Required when Enabled is set to true
          Password:
    
        # Kafka protocol version used to communicate with the Kafka cluster brokers
        # (defaults to 0.10.2.0 if not specified)
        Version:
    

    3.5 Debug部分

    调试配置信息

    Debug:
    
        # BroadcastTraceDir when set will cause each request to the Broadcast service
        # for this orderer to be written to a file in this directory
        BroadcastTraceDir:
    
        # DeliverTraceDir when set will cause each request to the Deliver service
        # for this orderer to be written to a file in this directory
        DeliverTraceDir:
    

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          本文标题:Hyperledger Fabric 介绍几个关键配置文件(三)

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