在多台主机上虚拟化hyperledger网络问题

Question

我已经跟随并完成了本教程

https://medium.com/@malliksarvepalli/hyperledger-fabric-1-2-on-multiple-hosts-using-docker-swarm-and-compose-11c13635e69e

我已经连接了3台主机，所有的服务都在运行。在PC2主机中运行./script.sh时，我得到了正确的结果。现在我正在学习下一个教程，它是：

https://medium.com/@malliksarvepalli/hyperledger-explorer-with-fabric-1-2-running-on-multiple-hosts-89c5af691b7e

有没有人可以在这篇教程中给我一些启发？我已经知道我应该用ubuntu 16.04创建一个新的主机，并安装以下必备软件：

nodejs 8.11.x

PostgreSQL 9.5或更高版本

Jq

我说的对吗？

在exploreconfig.json中，我更新了postgres变量：

主机:192.168.1.136(第四个虚拟机ip)，端口:5432，用户名:postgres，密码:psql，数据库:fabric

他们是正确的吗？

我还修改了config.json文件中的Orderer、Org1 [peer0 & peer1)、Org2(peer0 & peer1) IP地址和网络已启动并运行的前三个Vms的IP地址。

并遵循rest说明和测试，但是当我运行命令./start.sh时，我在控制台中有日志，这些日志是：

false 'ssl-certs' '/home/database/blockchain-explorer/ssl-certs'

postgres://christy:christy@192.168.1.136:5432/fabric

error when connecting to db: { Error: connect ECONNREFUSED 192.168.1.136:5432

at Object._errnoException (util.js:992:11)

at _exceptionWithHostPort (util.js:1014:20)

at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1186:14)

code: 'ECONNREFUSED',

errno: 'ECONNREFUSED',

syscall: 'connect',

address: '192.168.1.136',

port: 5432 }

******* Initialization started for hyperledger fabric platform ******, { 

'network-1': 

 { version: '1.0',

 clients: { 'client-1': [Object] },

 channels: { mychannel: [Object] },

 organizations: { Org1MSP: [Object], Org2MSP: [Object], OrdererMSP: 
 [Object] },

  peers: 

   { 'peer0.org1.ntua.com': [Object],

    'peer1.org1.ntua.com': [Object],

    'peer0.org2.ntua.com': [Object],

    'peer1.org2.ntua.com': [Object] },

    orderers: { 'orderer.ntua.com': [Object] } },

    'network-2': {} }

   client_configs.name  undefined  client_configs.profile  undefined

   FabricUtils.createFabricClient 

   <<<<<<<<<<<<<<<<<<<<<<<<<< Explorer Error >>>>>>>>>>>>>>>>>>>>>

   Error :  [ 'Invalid platform configuration, Please check the log' ]

   error when connecting to db: TypeError: Cannot read property 'on' of 
   undefined

  at Timeout.handleDisconnect [as _onTimeout] (/home/database/blockchain-

  explorer/app/persistence/postgreSQL/PgService.js:68:16)

  at ontimeout (timers.js:498:11)

  at tryOnTimeout (timers.js:323:5)

  at Timer.listOnTimeout (timers.js:290:5)


  <<<<<<<<<<<<<<<<<<<<<<<<<< Explorer Error >>>>>>>>>>>>>>>>>>>>>

  TypeError: "callback" argument must be a function

  at setTimeout (timers.js:450:11)

  at Timeout.handleDisconnect [as _onTimeout] (/home/database/blockchain-

  explorer/app/persistence/postgreSQL/PgService.js:85:5)

  at ontimeout (timers.js:498:11)

  at tryOnTimeout (timers.js:323:5)

  at Timer.listOnTimeout (timers.js:290:5)

  Received kill signal, shutting down gracefully

  Closed out connections

  false 'ssl-certs' '/home/database/blockchain-explorer/ssl-certs'

   postgres://christy:christy@192.168.1.136:5432/fabric

   error when connecting to db: { Error: connect ECONNREFUSED 192.168.1.136:5432

   at Object._errnoException (util.js:992:11)

   at _exceptionWithHostPort (util.js:1014:20)

   at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1186:14)

   code: 'ECONNREFUSED',

   errno: 'ECONNREFUSED',

   syscall: 'connect',

   address: '192.168.1.136',

   port: 5432 }


   ******* Initialization started for hyperledger fabric platform ******, 
  { 

  'network-1': 

  { version: '1.0',

   clients: { 'client-1': [Object] },

   channels: { mychannel: [Object] },

   organizations: { Org1MSP: [Object], Org2MSP: [Object], OrdererMSP: 

   [Object] },

   peers: 

   { 'peer0.org1.ntua.com': [Object],

     'peer1.org1.ntua.com': [Object],

     'peer0.org2.ntua.com': [Object],

     'peer1.org2.ntua.com': [Object] },

    orderers: { 'orderer.ntua.com': [Object] } },

    'network-2': {} }

    client_configs.name  undefined  client_configs.profile  undefined

    FabricUtils.createFabricClient 

    <<<<<<<<<<<<<<<<<<<<<<<<<< Explorer Error >>>>>>>>>>>>>>>>>>>>>

    Error :  [ 'Invalid platform configuration, Please check the log' ]

    error when connecting to db: TypeError: Cannot read property 'on' of 
    undefined

   at Timeout.handleDisconnect [as _onTimeout] (/home/database/blockchain-

   explorer/app/persistence/postgreSQL/PgService.js:68:16)

   at ontimeout (timers.js:498:11)

   at tryOnTimeout (timers.js:323:5)

   at Timer.listOnTimeout (timers.js:290:5)

   <<<<<<<<<<<<<<<<<<<<<<<<<< Explorer Error >>>>>>>>>>>>>>>>>>>>>

   TypeError: "callback" argument must be a function

   at setTimeout (timers.js:450:11)

   at Timeout.handleDisconnect [as _onTimeout] (/home/database/blockchain-

   explorer/app/persistence/postgreSQL/PgService.js:85:5)

   at ontimeout (timers.js:498:11)

   at tryOnTimeout (timers.js:323:5)

   at Timer.listOnTimeout (timers.js:290:5)

   Received kill signal, shutting down gracefully

   Received kill signal, shutting down gracefully

   Closed out connections

如果还需要其他日志，请让我知道。任何帮助都是有帮助的。非常感谢。

Answer 1

我可以给你提供一些在你的环境中需要检查的方面。

• 首先，你需要检查你是否能够从你试图启动Hyperledger Explorer的虚拟机访问postgresql (第四个虚拟机)。如果没有，您需要更改postgres配置(postgresql.conf/pg_hba.conf)以启用外部访问。

$ sudo -u postgres psql -h 192.168.1.136 -d fabric -c 'table peer‘

• 第二，请确认您确实在第4个虚拟机上运行了./createdb.sh。如果更改了数据库名称，还需要对齐脚本

$ cd app/persistence/fabric/postgreSQL/db/

$ ./createdb.sh