单节点部署实战技术分析

r囧r小猫 2022-03-08 13:50 195阅读 0赞

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    单结点部署，一般情况适用于本地开发阶段或线上测试阶段，方便智能合约的开发与调试。

创建工程目录

> mkdir -p ~/workmeta/EduEthereumServerDeploy/deploy\_1/data  
> cd ~/workmeta/EduEthereumServerDeploy/deploy\_1

此目录主要用于存储所有链生产过程中产生的区块、索引数据以及帐户keystore数据。

预先创建挖矿帐户及预置资金帐户

\# 1. 创建密码文件，后续生成帐户统一使用此密码

> echo "111111" > .passwd

\# 2. 创建两个帐户，一个挖矿帐户，一个预置资金帐户

> for ((n=0;n<2;n++)); do geth account new --password .passwd --datadir ./data; done  
> INFO \[10-30|10:37:29\] Maximum peer count ETH=25 LES=0 total=25  
> Address: \{127eb97163f790dd25c174429d85c3fa7c3cf116\} //预设此地址为: 挖矿帐户  
> INFO \[10-30|10:37:30\] Maximum peer count ETH=25 LES=0 total=25  
> Address: \{438a22e068b7d62d50a25706476545ab896e8510\} //预设此地址为: 预置资金帐户

生成创世区块配置  
挖矿帐户: 127eb97163f790dd25c174429d85c3fa7c3cf116  
预置资金帐户: 438a22e068b7d62d50a25706476545ab896e8510

具体操作步骤可参考\[五、配置创世区块\]  
注: 因大家在本地生成的帐户与教程中的帐户不同，所以需要根据自己生成帐户进行创世区块配置。

初始化链数据

4.1 根据创始配置(pubchain.json)初始化数据目录

> geth init --datadir ./data pubchain.json  
> 1  
> 执行结果如下：

INFO \[10-26|13:42:00\] Maximum peer count ETH=25 LES=0 total=25  
INFO \[10-26|13:42:00\] Allocated cache and file handles database=/Users/nolan/workmeta/pubchain/data/geth/chaindata cache=16 handles=16  
INFO \[10-26|13:42:00\] Writing custom genesis block  
INFO \[10-26|13:42:00\] Persisted trie from memory database nodes=356 size=65.35kB time=3.010068ms gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B  
INFO \[10-26|13:42:00\] Successfully wrote genesis state database=chaindata hash=f6fcaa…44829b  
INFO \[10-26|13:42:00\] Allocated cache and file handles database=/Users/nolan/workmeta/pubchain/data/geth/lightchaindata cache=16 handles=16  
INFO \[10-26|13:42:00\] Writing custom genesis block  
INFO \[10-26|13:42:00\] Persisted trie from memory database nodes=356 size=65.35kB time=2.1111ms gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B  
INFO \[10-26|13:42:00\] Successfully wrote genesis state database=lightchaindata hash=f6fcaa…44829b

4.2 查询工程目录结构

> tree  
> 1  
> 工程目录如下:

.  
├── data  
│ ├── geth //根据创世配置生成的文件目录  
│ │ ├── chaindata  
│ │ │ ├── 000001.log  
│ │ │ ├── CURRENT  
│ │ │ ├── LOCK  
│ │ │ ├── LOG  
│ │ │ └── MANIFEST-000000  
│ │ └── lightchaindata  
│ │ ├── 000001.log  
│ │ ├── CURRENT  
│ │ ├── LOCK  
│ │ ├── LOG  
│ │ └── MANIFEST-000000  
│ └── keystore //\[geth account new\]命令生成的keystore帐户信息  
│ ├── UTC--2018-10-30T02-37-29.289558112Z--127eb97163f790dd25c174429d85c3fa7c3cf116  
│ └── UTC--2018-10-30T02-37-30.431416849Z--438a22e068b7d62d50a25706476545ab896e8510  
└── pubchain.json //创世区块配置

5 directories, 13 files  
\# 工程可参考: [https://github.com/ChainDesk/...][https_github.com_ChainDesk_...]

启动节点  
执行启动命令

> geth --datadir ./data --rpc --rpcaddr "0.0.0.0" --rpcport 8545 --rpcapi "eth,web3,personal,net,miner,admin,debug,db" --unlock 127eb97163f790dd25c174429d85c3fa7c3cf116 --password .passwd --mine  
> 1  
> 整个启动过程如下：

INFO \[10-30|10:49:32\] Maximum peer count ETH=25 LES=0 total=25  
INFO \[10-30|10:49:32\] Starting peer-to-peer node instance=Geth/v1.8.2-stable/darwin-amd64/go1.10  
INFO \[10-30|10:49:32\] Allocated cache and file handles database=/Users/nolan/workmeta/EduEthereumServerDeploy/deploy\_1/data/geth/chaindata cache=768 handles=1024  
INFO \[10-30|10:49:32\] Initialised chain configuration config="\{ChainID: 100 Homestead: 1 DAO: <nil> DAOSupport: false EIP150: 2 EIP155: 3 EIP158: 3 Byzantium: 4 Constantinople: <nil> Engine: clique\}"  
INFO \[10-30|10:49:32\] Initialising Ethereum protocol versions="\[63 62\]"  
INFO \[10-30|10:49:32\] Starting P2P networking  
....省去一些日志，要不太长了  
INFO \[10-30|10:49:35\] Starting mining operation  
INFO \[10-30|10:49:35\] Commit new mining work number=1 txs=0 uncles=0 elapsed=130.025µs  
INFO \[10-30|10:49:35\] Successfully sealed new block number=1 hash=9c8e09…919dbe  
INFO \[10-30|10:49:35\] ? mined potential block number=1 hash=9c8e09…919dbe  
INFO \[10-30|10:49:35\] Commit new mining work number=2 txs=0 uncles=0 elapsed=585.992µs  
^CINFO \[10-30|10:49:36\] Got interrupt, shutting down...  
INFO \[10-30|10:49:36\] HTTP endpoint closed url=[http://0.0.0.0][http_0.0.0.0]:8545  
INFO \[10-30|10:49:36\] IPC endpoint closed endpoint=/Users/nolan/workmeta/EduEthereumServerDeploy/deploy\_1/data/geth.ipc  
INFO \[10-30|10:49:36\] Writing cached state to disk block=1 hash=9c8e09…919dbe root=94b9df…184701  
INFO \[10-30|10:49:36\] Persisted trie from memory database nodes=0 size=0.00B time=3.947µs gcnodes=0 gcsize=0.00B gctime=0s livenodes=1 livesize=0.00B  
......

到此，整个节点就算启动成功了。接下来我们将验证其内部转帐服务。

节点服务验证

6.1 进入geth命令窗口

> geth attach [http://localhost][http_localhost]:8545 //进入geth客户端  
> 1  
> 进入的命令窗口如下所示：

Welcome to the Geth JavaScript console!

instance: Geth/v1.8.17-stable-8bbe7207/linux-amd64/go1.10.4  
coinbase: 0xd08e33b7f310aadfe52b5f94c8a04045d2594195  
at block: 841 (Tue, 30 Oct 2018 09:04:09 CST)  
datadir: /opt/node1  
modules: admin:1.0 debug:1.0 eth:1.0 miner:1.0 net:1.0 personal:1.0 rpc:1.0 web3:1.0

6.2 查看转帐前金额

\# 查看所有帐户

> personal.listAccounts  
> \["0x127eb97163f790dd25c174429d85c3fa7c3cf116", "0x438a22e068b7d62d50a25706476545ab896e8510"\]  
> \# 查看帐户余额(0x127eb97163f790dd25c174429d85c3fa7c3cf116)  
> web3.fromWei(eth.getBalance(web3.personal.listAccounts\[0\]), "ether")  
> 0  
> \# 查看帐户余额(0x438a22e068b7d62d50a25706476545ab896e8510)  
> web3.fromWei(eth.getBalance(web3.personal.listAccounts\[1\]), "ether")  
> 9.04625697166532776746648320380374280103671755200316906558262375061821325312e+56

6.3 执行转帐操作

转帐10eth, 0x438a22e068b7d62d50a25706476545ab896e8510 -> 0x127eb97163f790dd25c174429d85c3fa7c3cf116  
1

> web3.personal.unlockAccount(web3.personal.listAccounts\[1\])  
> Unlock account 0x438a22e068b7d62d50a25706476545ab896e8510  
> Passphrase:  
> true  
> web3.eth.sendTransaction(\{from: web3.personal.listAccounts\[1\], to: web3.personal.listAccounts\[0\], value: web3.toWei(10, "ether")\})  
> "0x9a1057c619659a08ee15882f0954b9953435b7d065a64ec37fd5d5c8b0ef6247“  
> 6.4 查看转帐后金额

\# 查看帐户余额(0x127eb97163f790dd25c174429d85c3fa7c3cf116)

> web3.fromWei(eth.getBalance(web3.personal.listAccounts\[0\]), "ether")  
> 10.000378  
> \# 查看帐户余额(0x438a22e068b7d62d50a25706476545ab896e8510)  
> web3.fromWei(eth.getBalance(web3.personal.listAccounts\[1\]), "ether")  
> 9.04625697166532776746648320380374280103671755200316906548261997061821325312e+56

[https_github.com_ChainDesk_...]: https://github.com/ChainDesk/EduEthereumServerDeploy/tree/master/deploy_1
[http_0.0.0.0]: http://0.0.0.0
[http_localhost]: http://localhost