Ethereum gas and transaction data volume
Ethereum is the next generation of cryptography ledger. It intends to support many advanced functions, including user issuing currency, intelligent protocol, decentralized transaction and what we think is the first fully decentralized autonomous organization (Daos) or decentralized autonomous company (DACS) application
Ethereum does not specifically support every single type of function as a feature. On the contrary, Ethereum includes a built-in Turing complete scripting language, which allows you to write code for the feature you want to implement through a mechanism called "contract". A contract is like an automatic agent. Every time a transaction is received, the contract will run a specific code, which can modify the data storage inside the contract or send the transaction. Advanced contracts can even modify their own code
Ethereum was launched on November 1, 2015, and launched on August 22, 2016 on bitcoin trading platform, a well-known domestic trading platform; 30-¥ About 60, current: ￥ 1259.97, the rise is amazing
If you want to query the transaction records on the main network, you can use Etherscan. However, if you build your own private chain, how should you query the transaction records
the answer is that you need to listen to the logs on the chain, save them in the database, and then query them in the database. For example:
< pre t = "code" L = "Java" > varaddr = & quot& quot;< br />varfilter=web3.eth.filter({fromB lock:0 ,toBlock:' latest', address:addr });< br />filter.get(function(err,transactions){transactions.forEach(function(tx){
vartxInfo=web3.eth.getTransaction(tx.transactionHash);
/ / at this time, the transaction information txinfo can be stored in the database
})< br />});
Web3. Eth. Filter() is used to monitor the log on the chain, and Web3. Eth. Gettransaction() is used to extract the information of the specified transaction. Once the transaction information is obtained, it can be stored in the database for query
recommend a practical introction, you can see: Ethereum tutorial
eth0 to awk for processing
where - F & # 39;:|< br />+'
this is a separator defined by awk and then matched with "BCAST & quot;, Take the content of the fourth column
since your command is not universal, you can't output the result here, but you should intercept the broadcast address
Gas is translated as "gasoline cost". Gas was originally implemented on the Ethereum blockchain to measure the computing and storage resources consumed by messages
in other blockchains, node participants specify gasfee in local currency, and then pay priority fees to the proction node participants' blocks according to the natural gas consumed by the message
In fact, gas is similar to gasoline, which is used as the energy of a car to ensure that the car can run normally. Gas on Ethereum network "refuels" the transaction behavior and allows users to perform different operations
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the reason for the existence of gas. Gas fee will be priced from high to low. Messages with low price may not be packaged, while messages with high price will be packaged first, so gas fee is a market behavior
when the news is congested, the cost of gas will rise. If we do not deal with the congested news in time, we will lose the computing power. If the computing power does not recover for two consecutive days, we will be severely punished
if there is no gas, users can execute a program that will never stop. The reason may be that there is a problem with the code, or someone does evil. In order to prevent this situation, Ethereum introces the gas cost associated with each operation, which will prevent the program from running forever, and finally make the whole network stagnate
miners will give priority to the deals with reasonable gas and high gas price. If the miner's fee paid by the user is very low (out of gas), the transaction may not be packaged by the miner, resulting in the failure of the transaction. The transaction cost of tokenpocket (also the transaction cost of Ethereum) = gas quantity * gas price
gas is the unit used to measure the calculation workload required to perform specific operations on the Ethereum blockchain. The name itself was not chosen by accident. Gas is actually similar to gasoline, which is used as the energy of a car to ensure that the car can run normally. Gas on Ethereum network "refuels" the transaction behavior and allows users to perform different operations
the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved "blockchain Technology Specialty" pilot workstation of "smart learning workshop 2020 Xueshuo innovation workstation" launched by the school planning, construction and development center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system.
I think it should only be used for network applications. For example, Alipay and so on.