超级账本HyperLedger: Explorer安装使用
目录
说明
超级账本HyperLedger视频教程演示汇总：HyperLedger Fabric的视频讲解–“主页”中可领优惠券
HyperLedger Explorer是HyplerLedger的子项目，是一个区块链浏览器。
安装
安装依赖:
yum install -y epel-release npm postgresql postgresql-server gcc-c++
nodejs版本需要高于7.6，如果不是重新安装：
yum erase nodejs
wget https://nodejs.org/dist/v8.11.3/node-v8.11.3-linux-x64.tar.xz
tar -xvf node-v8.11.3-linux-x64.tar.xz
cd node-v8.11.3-linux-x64
cp -rf * /usr/
启动postgre:
postgresql-setup initdb
chown -R postgres:postgres /var/run/postgresql/
systemctl start postgresql
获取代码:
git clone https://github.com/hyperledger/blockchain-explorer.git
cp app/persistance/postgreSQL/db/updatepg.sql /tmp/
cp app/persistance/postgreSQL/db/explorerpg.sql /tmp/
在不同版本的代码中,”sql”文件可能位于不同地方。
设置数据库：
sudo -u postgres psql
postgres=# \i /tmp/explorerpg.sql
fabricexplorer=# \i /tmp/updatepg.sql
查看创建的表：
fabricexplorer=# \l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
----------------+----------+-----------+-------------+-------+-----------------------
fabricexplorer | hppoc | SQL_ASCII | en_US.UTF-8 | C |
postgres | postgres | SQL_ASCII | en_US.UTF-8 | C |
template0 | postgres | SQL_ASCII | en_US.UTF-8 | C | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | SQL_ASCII | en_US.UTF-8 | C | =c/postgres +
| | | | | postgres=CTc/postgres
(4 rows)
fabricexplorer=# \d
List of relations
Schema | Name | Type | Owner
--------+---------------------------+----------+-------
public | blocks | table | hppoc
public | blocks_id_seq | sequence | hppoc
public | chaincodes | table | hppoc
public | chaincodes_id_seq | sequence | hppoc
public | channel | table | hppoc
public | channel_id_seq | sequence | hppoc
public | peer | table | hppoc
public | peer_id_seq | sequence | hppoc
public | peer_ref_channel | table | hppoc
public | peer_ref_channel_id_seq | sequence | hppoc
public | transaction | table | hppoc
public | transaction_id_seq | sequence | hppoc
public | write_lock | table | hppoc
public | write_lock_write_lock_seq | sequence | hppoc
尝试登陆：
psql postgres://hppoc:[email protected]:5432/fabricexplorer
如果登陆失败，修改/var/lib/pgsql/data/pg_hba.conf:
将：
host all all 127.0.0.1/32 ident
修改为：
host all all 127.0.0.1/32 trust
修改之后重启postgresql：
systemctl restart postgresql
根据自己的情况，修改配置文件app/platform/fabric/config.json:
{
"network-config": {
"org1": {
"name": "platform",
"mspid": "platform",
"peer1": {
"requests": "grpcs://peer0.platform.ennblock.cn:7051",
"events": "grpcs://peer0.platform.ennblock.cn:7053",
"server-hostname": "peer0.platform.ennblock.cn",
"tls_cacerts": "/opt/app/fabric/cli/user/platform.ennblock.cn/Admin-peer0.platform.ennblock.cn/tls/ca.crt"
},
"admin": {
"key": "/opt/app/fabric/cli/user/platform.ennblock.cn/Admin-peer0.platform.ennblock.cn/msp/keystore",
"cert": "/opt/app/fabric/cli/user/platform.ennblock.cn/Admin-peer0.platform.ennblock.cn/msp/signcerts"
}
}
},
"host": "localhost",
"port": "8080",
"channel": "mychannel",
"keyValueStore": "/tmp/fabric-client-kvs",
"eventWaitTime": "30000",
"pg": {
"host": "127.0.0.1",
"port": "5432",
"database": "fabricexplorer",
"username": "hppoc",
"passwd": "password"
},
"license": "Apache-2.0"
}
和配置文件appconfig.json，注意配置文件格式可能因为版本不同而不同:
{
"host": "0.0.0.0",
"port": "80",
"channel": "mychannel",
"keyValueStore": "/tmp/fabric-client-kvs",
"eventWaitTime": "30000",
"pg": {
"host": "127.0.0.1",
"port": "5432",
"database": "fabricexplorer",
"username": "hppoc",
"passwd": "password"
},
"license": "Apache-2.0"
}
安装、启动：
npm config set registry https://registry.npm.taobao.org
npm install
//还需要到client目录中编译，否则页面看不到内容
cd client
npm install
npm run build
如果遇到：
npm: relocation error: npm: symbol SSL_set_cert_cb, version libssl.so.10 not defined in file libssl.so.10 with link time reference
更新openssl:
yum update openssl -y
问题汇总
页面空白没有任何内容
如果在浏览器里打开后页面空白，没有任何内容，很可能是没有到client目录中进行安装编译：
//还需要到client目录中编译，否则页面看不到内容
cd client
npm install
npm run build
注意需要npm run build，
openssl需要更新
如果遇到下面的问题：
npm: relocation error: npm: symbol SSL_set_cert_cb, version libssl.so.10 not defined in file libssl.so.10 with link time reference
升级openssl:
yum update openssl -y
启动explorer：
npm build
node ./main.js
Error: No identity has been assigned to this client
如果遇到下面的错误：
postgres://hppoc:[email protected]:5432/fabricexplorer
Please open web browser to access ：http://0.0.0.0:8080/
[2018-04-26 19:26:42.977] [ERROR] Query - Error: No identity has been assigned to this client
at Client._getSigningIdentity (/root/blockchain-explorer/node_modules/fabric-client/lib/Client.js:1206:11)
at Channel.queryInfo (/root/blockchain-explorer/node_modules/fabric-client/lib/Channel.js:896:36)
at helper.getOrgAdmin.then (/root/blockchain-explorer/app/query.js:98:18)
[2018-04-26 19:26:42.979] [ERROR] blockscanner - TypeError: Cannot read property 'low' of undefined
at getChainInfo.then.response (/root/blockchain-explorer/app/query.js:213:23)
原因是config.json的中组织不是以org开头的。。。。这个还真是有点坑。。
SyntaxError: Unexpected token function
opt/app/blockchain-explorer/main.js:46
async function startExplorer() {
^^^^^^^^
SyntaxError: Unexpected token function
at createScript (vm.js:56:10)
at Object.runInThisContext (vm.js:97:10)
at Module._compile (module.js:549:28)
at Object.Module._extensions..js (module.js:586:10)
at Module.load (module.js:494:32)
at tryModuleLoad (module.js:453:12)
at Function.Module._load (module.js:445:3)
at Module.runMain (module.js:611:10)
at run (bootstrap_node.js:394:7)
at startup (bootstrap_node.js:160:9)
node的版本太老的缘故:
Async functions are not supported by Node versions older than version 7.6
接下来…
参考
