如何从EOS主网同步数据

eldkl1637

一、从github克隆主网代码仓库：

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• git clone https://github.com/EOS-Mainnet/eos  
  

二、更新代码仓库子模块，使用递归参数

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• git submodule update --init --recursive  
  

三、git tag命令查看版本标签

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• git tag  
  

四、git checkout mainnet-1.0.2.2本地仓库代码切换到mainnet-1.0.2.2版本

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• git checkout mainnet-1.0.2.2  
  

五、git branch 查看本地仓库代码版本是否mainnet-1.0.2.2

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• git branch  
  

六、运行自动化编译脚本：./eosio_build.sh，对代码进行编译

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• ./eosio_build.sh  
  

自动化编译过程可能会因为主机物理内存小于7G，boost库，mongodb等下载失败或其他原因而编译失败，请查找原因或修改脚本自行解决。

七、为了后续操作方便，可以安装一下，省的每次启动nodeos或敲cleos命令行都要切换目录

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• sudo make install  
  

八、config.ini文件内容如下

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• # fullnode sample config  
•   
• blocks-dir = "blocks"  
•   
• chain-state-db-size-mb = 1024  
•   
• reversible-blocks-db-size-mb = 340  
•   
• contracts-console = false  
•   
• https-client-validate-peers = 1  
•   
• http-server-address = 0.0.0.0:8888  
•   
• access-control-allow-credentials = false  
•   
• p2p-listen-endpoint = 0.0.0.0:9876  
•   
• p2p-server-address = 0.0.0.0:9876  
•   
•   
•   
• # List of peers  
•   
• p2p-peer-address = p2p.one.eosdublin.io:9876  
•   
• p2p-peer-address = eu-west-nl.eosamsterdam.net:9876  
•   
• p2p-peer-address = p2p.mainnet.eosgermany.online:9876  
•   
• p2p-peer-address = 35.197.190.234:19878  
•   
• p2p-peer-address = p2p.genereos.io:9876  
•   
• p2p-peer-address = fullnode.eoslaomao.com:443  
•   
• p2p-peer-address = new.eoshenzhen.io:10034  
•   
• p2p-peer-address = node1.eosphere.io:9876  
•   
• p2p-peer-address = p2p.meet.one:9876  
•   
• p2p-peer-address = bp.eosbeijing.one:8080  
•   
• p2p-peer-address = peer1.mainnet.helloeos.com.cn:80  
•   
• p2p-peer-address = p2p-public.hkeos.com:19875  
•   
• p2p-peer-address = pub1.eostheworld.io:9876  
•   
• p2p-peer-address = eu1.eosdac.io:49876  
•   
• p2p-peer-address = peer.eosio.sg:9876  
•   
•   
•   
•   
•   
• p2p-max-nodes-per-host = 10  
•   
•   
•   
• agent-name = "kevincaokun1"  
•   
• # allowed-connection can be set to "specified" to use whitelisting with the "peer-key" option  
•   
• allowed-connection = any  
•   
•   
• # peer-private-key is needed if you are whitelisting specific peers with the "peer-key" option  
•   
• peer-private-key = ["EOS6qTvpRYx35aLonqUkWAMwAf3mFVugYfQCbjV67zw2aoe7Vx7qd", "5JroNC1B4pz9gJzNZeU7tkU6YMtoeWRCr4CJJwKsVXnJhRbKXSC"]  
•   
•   
• max-clients = 250  
•   
• connection-cleanup-period = 30  
•   
• network-version-match = 1  
•   
• sync-fetch-span = 100  
•   
• max-implicit-request = 1500  
•   
• enable-stale-production = false  
•   
• pause-on-startup = false  
•   
• max-transaction-time = 10000  
•   
• max-irreversible-block-age = -1  
•   
• txn-reference-block-lag = 0  
•   
•   
•   
•   
•   
• # Plugins used for full nodes  
•   
• plugin = eosio::chain_api_plugin  
•   
• plugin = eosio::history_api_plugin  
•   
• plugin = eosio::chain_plugin  
•   
• plugin = eosio::history_plugin  
•   
• plugin = eosio::net_plugin  
•   
• plugin = eosio::net_api_plugin  
  

九、创世json文件genesis.json 内容如下：

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• {  
•   "initial_timestamp": "2018-06-08T08:08:08.888",  
•   "initial_key": "EOS7EarnUhcyYqmdnPon8rm7mBCTnBoot6o7fE2WzjvEX2TdggbL3",  
•   "initial_configuration": {  
•     "max_block_net_usage": 1048576,  
•     "target_block_net_usage_pct": 1000,  
•     "max_transaction_net_usage": 524288,  
•     "base_per_transaction_net_usage": 12,  
•     "net_usage_leeway": 500,  
•     "context_free_discount_net_usage_num": 20,  
•     "context_free_discount_net_usage_den": 100,  
•     "max_block_cpu_usage": 200000,  
•     "target_block_cpu_usage_pct": 1000,  
•     "max_transaction_cpu_usage": 150000,  
•     "min_transaction_cpu_usage": 100,  
•     "max_transaction_lifetime": 3600,  
•     "deferred_trx_expiration_window": 600,  
•     "max_transaction_delay": 3888000,  
•     "max_inline_action_size": 4096,  
•     "max_inline_action_depth": 4,  
•     "max_authority_depth": 6  
•   }  
• }  
  

十、config.ini和genesis.json文件放置路径

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• linux-ubuntu:  ~/.local/share/eosio/nodeos/config/  
•   
• mac-osx:  ~/Library/Application\ Support/eosio/nodeos/data/confi  
  

十一、启动nodeos前注意：清理旧的数据

十二、nodeos启动后使用 cleos get info 命令查看链的chain_id 是否下面这行代码：

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• aca376f206b8fc25a6ed44dbdc66547c36c6c33e3a119ffbeaef943642f0e906  
  

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• cleos get info  
  

十三、注意如果chain_id不对，则不是主网的链，不会从主网同步数据，遇到这种情况请使用下面命令重新启动nodeos,注意路径和你主机上nodeos 所在的路径一致，并且把genesis.json文件拷贝到该目录下面

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• cd ~/eos/build/program/nodeos  
• ./nodeos --genesis-json genesis.json  
  

十四、区块数据正常同步以后，可以使用cleos命令行对链条进行一些操作，比如：查看191块的数据

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• cleos get block 191  
  

发现这个191区块存在这样一笔交易，eosio 账户给 b1账户转了 10个EOS，并且备注了这样一句话：

Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has - eosacknowledgments.io

翻译成中文是：永远不要怀疑一小群有思想、有责任心的公民能改变世界，事实上，这是唯一的事情。
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