Transaction messages are a very important feature provided by RocketMQ. They are open source after version 4.x and can be used to easily implement distributed transactions.This article gives a detailed description of the transaction messages for RocketMQ and gives a c ...
Posted by fael097 on Sun, 23 Feb 2020 18:55:37 -0800
I got back an industrial control board with J2900 double Gigabit ports (odd model) for soft routing, but I wanted to use all kinds of skins, install a desktop environment with VNC, and I didn't have a cold on the virtual machine (and this U doesn't support through yet), so I had to give up all the router systems.As an Arch iron powder, in purs ...
Posted by vikaspa on Sun, 23 Feb 2020 08:31:13 -0800
The System tps is 3000, distributed deployment is adopted, and the business order number needs to be globally unique, such as order number. There are many common distributed global id schemes on the Internet, including the following:
redis atomic self increasing
zookeeper node directo ...
Posted by Bleej on Sun, 23 Feb 2020 02:06:09 -0800
1.1. Why study data structure and algorithm?
Some people say that data structure and algorithm, computer network, and operating system are the same, away from daily development, except for the interview may not be used in this life!
Some people say that I do business development. As long as I am proficient in API, framework ...
Posted by shatteredroses on Sat, 22 Feb 2020 19:54:12 -0800
Ethereum is a public blockchain platform that provides a smart contract function. To develop an application on Ethereum, you need to install Geth based on Go language on its client. The official website is: https://github.com/ethereum/go-ethereum.
1. Enter the command line window
2. Enter in the command line window
geth --datadir "E:\geth ...
Posted by stockton on Sat, 22 Feb 2020 06:03:32 -0800
1, Use URL class
2, Use HttpURLConnection to send GET request
3, Use HttpURLConnection to send POST request
4, Download case
Compared with python, Java crawler is a bit more complex. A few lines of python code can grab a web page. Java may need dozens of lines or even more, so python has m ...
Posted by curtisdw on Sat, 22 Feb 2020 05:09:06 -0800
There are many problems in traditional Session based verification, such as Session expiration, excessive server overhead, inability to deploy in a distributed way, and unsuitable for projects with front-end and back-end separation. Traditional token based verification ...
Posted by twmcmahan on Sat, 22 Feb 2020 02:59:29 -0800
In order to protect the network security of high security level, the State Security Bureau issued the physical isolation requirements for the classified network on December 27, 1999, and promulgated and implemented the regulations on the confidentiality management of the international networking of computer information system on Jan ...
Posted by sith717 on Fri, 21 Feb 2020 04:40:10 -0800
QQ group communication
If there are other problems with the installation, you can go to QQ group for help
Development environment requirements:
JDK version 1.8
Maven 3.6 up
Idea development tools
Download and install
Official down ...
Posted by thedualmind on Fri, 21 Feb 2020 00:59:54 -0800
1, Batch normalization and residual network
1.1 batch normalization
Standardization of inputs (shallow models)
The mean value and standard deviation of any feature after processing on all samples in the data set are 0 and 1.
Standardized processing of input data makes the distribution of each featu ...
Posted by lorenzo-s on Thu, 20 Feb 2020 23:55:15 -0800