BCSkill (Block chain skill )
区块链中文技术社区

只讨论区块链底层技术
遵守一切相关法律政策！

github

一般创建账号，或者三方购买的账号都是最低的资源创建的 （cleos system newaccount 消耗最少的EOS资源）
基本账号下CPU和NET都是零，RAM 3kb以下，因为RAM收费逻辑（EOS零手续费免费?你不知道的EOS收费细节）

• 只要action中执行了持久化存储相关的逻辑就需要收取ram使用费，比如系统合约的newaccount ,updateauth, setcode, setabi, schedule_deferred_transaction, eosio.token的transfer

所以在账号资源不足的情况下，转账操作会提示以下错误

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos push action eosio.token transfer '["eosio", "bcskillsurou","100.0000 EOS","vote"]' -p eosio
executed transaction: e233ccc335b833ac9d7746a43e3b4e591795151c95f989a36976f8ceb98a08c7  136 bytes  562 us
#   eosio.token <= eosio.token::transfer        {"from":"eosio","to":"bcskillsurou","quantity":"100.0000 EOS","memo":"vote"}
#         eosio <= eosio.token::transfer        {"from":"eosio","to":"bcskillsurou","quantity":"100.0000 EOS","memo":"vote"}
#  bcskillsurou <= eosio.token::transfer        {"from":"eosio","to":"bcskillsurou","quantity":"100.0000 EOS","memo":"vote"}
warning: transaction executed locally, but may not be confirmed by the network yet

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos get currency balance eosio.token bcskillsurou
100.0000 EOS

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos push action eosio.token transfer '["bcskillsurou", "eosio","1.0000 EOS","vote"]' -p bcskillsurou
Error 3080001: account using more than allotted RAM usage

提示RAM不足已支持转账
如果自己给自己直接购买RAM的话

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos system buyram bcskillsurou bcskillsurou "0.1000 EOS"
3536793ms thread-0   main.cpp:429                  create_action        ] result: {"binargs":"a0e9d5384607313aa0e9d5384607313ae80300000000000004454f5300000000"} arg: {"code":"eosio","action":"buyram","args":{"payer":"bcskillsurou","receiver":"bcskillsurou","quant":"0.1000 EOS"}} 
Error 3080002: transaction exceeded the current network usage limit imposed on the transaction

提示NET不足
如果自己给自己抵押换取NET和CPU时

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos system delegatebw bcskillsurou bcskillsurou '0.1000 EOS' '0.1000 EOS' -p bcskillsurou
48402ms thread-0   main.cpp:1084                 operator()           ] act_payload: {"from":"bcskillsurou","receiver":"bcskillsurou","stake_net_quantity":"0.1000 EOS","stake_cpu_quantity":"0.1000 EOS","transfer":false} 
48403ms thread-0   main.cpp:429                  create_action        ] result: {"binargs":"a0e9d5384607313aa0e9d5384607313ae80300000000000004454f5300000000e80300000000000004454f530000000000"} arg: {"code":"eosio","action":"delegatebw","args":{"from":"bcskillsurou","receiver":"bcskillsurou","stake_net_quantity":"0.1000 EOS","stake_cpu_quantity":"0.1000 EOS","transfer":false}} 
Error 3080001: account using more than allotted RAM usage

又提示RAM不足...先有鸡还是先有蛋，死循环。所以只能让其他RAM资源充足的账号例如 eosio 帮此账号bcskillsurou购买

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos system buyram eosio bcskillsurou "0.1000 EOS"
177473ms thread-0   main.cpp:429                  create_action        ] result: {"binargs":"0000000000ea3055a0e9d5384607313ae80300000000000004454f5300000000"} arg: {"code":"eosio","action":"buyram","args":{"payer":"eosio","receiver":"bcskillsurou","quant":"0.1000 EOS"}} 
executed transaction: f5aa4dd7f6a850b65884174a4f86285414ca5c50ba1ab6ddc2a7f9ba5b65c051  128 bytes  1814 us
#         eosio <= eosio::buyram                {"payer":"eosio","receiver":"bcskillsurou","quant":"0.1000 EOS"}
#   eosio.token <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"0.0995 EOS","memo":"buy ram"}
#         eosio <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"0.0995 EOS","memo":"buy ram"}
#     eosio.ram <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"0.0995 EOS","memo":"buy ram"}
#   eosio.token <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"0.0005 EOS","memo":"ram fee"}
#         eosio <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"0.0005 EOS","memo":"ram fee"}
#  eosio.ramfee <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"0.0005 EOS","memo":"ram fee"}
warning: transaction executed locally, but may not be confirmed by the network yet

当bcskillsurouRAM足够后，就可以自己或者其他账号抵押购买CPU和NET了

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos system delegatebw bcskillsurou bcskillsurou '0.1000 EOS' '0.1000 EOS' -p bcskillsurou
214840ms thread-0   main.cpp:1084                 operator()           ] act_payload: {"from":"bcskillsurou","receiver":"bcskillsurou","stake_net_quantity":"0.1000 EOS","stake_cpu_quantity":"0.1000 EOS","transfer":false} 
214841ms thread-0   main.cpp:429                  create_action        ] result: {"binargs":"a0e9d5384607313aa0e9d5384607313ae80300000000000004454f5300000000e80300000000000004454f530000000000"} arg: {"code":"eosio","action":"delegatebw","args":{"from":"bcskillsurou","receiver":"bcskillsurou","stake_net_quantity":"0.1000 EOS","stake_cpu_quantity":"0.1000 EOS","transfer":false}} 
executed transaction: b57bad80a397c6fee9aab0519600b9c063f6084fadd542402fe07ce93d2643bb  144 bytes  1720 us
#         eosio <= eosio::delegatebw            {"from":"bcskillsurou","receiver":"bcskillsurou","stake_net_quantity":"0.1000 EOS","stake_cpu_quanti...
#   eosio.token <= eosio.token::transfer        {"from":"bcskillsurou","to":"eosio.stake","quantity":"0.2000 EOS","memo":"stake bandwidth"}
#  bcskillsurou <= eosio.token::transfer        {"from":"bcskillsurou","to":"eosio.stake","quantity":"0.2000 EOS","memo":"stake bandwidth"}
#   eosio.stake <= eosio.token::transfer        {"from":"bcskillsurou","to":"eosio.stake","quantity":"0.2000 EOS","memo":"stake bandwidth"}
warning: transaction executed locally, but may not be confirmed by the network yet

此时再次转账的话

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos get currency balance eosio.token bcskillsurou
99.8000 EOS

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos push action eosio.token transfer '["bcskillsurou", "eosio","1.0000 EOS","vote"]' -p bcskillsurou
executed transaction: cd9a0780b51db71a0efd096578dc453d26a528af6fa4e4e7ab0b139e9d9753ae  136 bytes  548 us
#   eosio.token <= eosio.token::transfer        {"from":"bcskillsurou","to":"eosio","quantity":"1.0000 EOS","memo":"vote"}
#  bcskillsurou <= eosio.token::transfer        {"from":"bcskillsurou","to":"eosio","quantity":"1.0000 EOS","memo":"vote"}
#         eosio <= eosio.token::transfer        {"from":"bcskillsurou","to":"eosio","quantity":"1.0000 EOS","memo":"vote"}
warning: transaction executed locally, but may not be confirmed by the network yet

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos get currency balance eosio.token bcskillsurou
98.8000 EOS

就一切OK了

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos system newaccount eosio bcskillsurou EOS7uvrLaTGsRH8BujfjjjJChXLzZhUQqbvTasoN1rFvGJD68kJf9  EOS7uvrLaTGsRH8BujfjjjJChXLzZhUQqbvTasoN1rFvGJD68kJf9  --stake-net '0.00 EOS' --stake-cpu '0.00 EOS'  --buy-ram-kbytes 3
2341780ms thread-0   main.cpp:429                  create_action        ] result: {"binargs":"0000000000ea3055a0e9d5384607313a000c0000"} arg: {"code":"eosio","action":"buyrambytes","args":{"payer":"eosio","receiver":"bcskillsurou","bytes":3072}} 
executed transaction: 0a582d07bde12299a178b066aed6489ea3abc6a5369f2d48afe79f96b7f9512e  248 bytes  2182 us
#         eosio <= eosio::newaccount            {"creator":"eosio","name":"bcskillsurou","owner":{"threshold":1,"keys":[{"key":"EOS7uvrLaTGsRH8Bujfj...
#         eosio <= eosio::buyrambytes           {"payer":"eosio","receiver":"bcskillsurou","bytes":3072}
#   eosio.token <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"0.4573 EOS","memo":"buy ram"}
#         eosio <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"0.4573 EOS","memo":"buy ram"}
#     eosio.ram <= eosio.token::transfer        {"from":"eosio","to":"eosio.ram","quantity":"0.4573 EOS","memo":"buy ram"}
#   eosio.token <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"0.0023 EOS","memo":"ram fee"}
#         eosio <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"0.0023 EOS","memo":"ram fee"}
#  eosio.ramfee <= eosio.token::transfer        {"from":"eosio","to":"eosio.ramfee","quantity":"0.0023 EOS","memo":"ram fee"}
warning: transaction executed locally, but may not be confirmed by the network yet

surou@surou-C-H110M-K-Pro:~/.local/share/eosio/nodeos/config$ cleos get account bcskillsurou
permissions: 
     owner     1:    1 EOS7uvrLaTGsRH8BujfjjjJChXLzZhUQqbvTasoN1rFvGJD68kJf9
        active     1:    1 EOS7uvrLaTGsRH8BujfjjjJChXLzZhUQqbvTasoN1rFvGJD68kJf9
memory: 
     quota:     2.982 KiB    used:     2.926 KiB  

net bandwidth: 
     delegated:       0.0000 EOS           (total staked delegated to account from others)
     used:                 0 bytes
     available:            0 bytes
     limit:                0 bytes

cpu bandwidth:
     delegated:       0.0000 EOS           (total staked delegated to account from others)
     used:                 0 us   
     available:            0 us   
     limit:                0 us   

最少需要RAM 3kb,具体等于多少EOS需要根据当前RAM的价格来定

git clone -b release/1.1 https://github.com/EOSIO/eos.git
cd eos
git fetch –all –tags –prune
git merge -m “merge” –commit origin/gh#3030-enable-mongodb
git submodule update –init –recursive
./eosio_build.sh
cd build
make install

修改config.ini配置文件，添加如下两行：

plugin = eosio::mongo_db_plugin
mongodb-uri = mongodb://localhost:27017/eosmain

其中，eosmain是要写入的MongoDB数据库名。
好了，万事俱备，开始启动
进入~/opt/mongodb/bin目录，启动MongoDB服务。

cd ~/opt/mongodb/bin
./mongod

这时MongoDB服务会默认监听27017端口，如下图所示。

新开一个小窗，重启nodeos，需要加上–replay-blockchain，以使历史交易数据同步到MongoDB。
如果没有意外的话，此时MongoDB应该开始写入相关记录了。
执行mongo程序进入MongoDB控制台，查询相应数据库和记录，如下图。

参考：github issues eosdata.io

EOS 1.1.0 版本以上请参考 https://www.bcskill.com/index.php/archives/290.html

由于解决 cleos get transaction 返回空的信息
此问题，导致运行 nodeos 提示以下错误

terminate called after throwing an instance of 'boost::interprocess::bad_alloc'
  what():  boost::interprocess::bad_alloc

解决方案：修改 config.ini 中 chain-state-db-size-mb调大些，默认1024，一般改为2048即可，当然服务器内存较大可以再多分些。
参考：github issues