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Alibaba cloud's one click deployment script is used for deployment: curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun Create the required directory: mkdir -p /etc/docker /data/docker Then modify the configuration file of docker: /etc/docker/daemon.json {   "graph": "/data/docker",   "storage-driver": "overlay2",   "insecure-re ...

TCP In order to facilitate the development of network applications, Berkeley University in the United States implements a kind of communication protocol Socket on Unix, which enables programmers to access TCP/IP conveniently; Use Socket of TCP/IP to communicate: The server program binds a socket ...

1, File system view command df format df [options] [mount point] option Name Effect -a Display all file system information, including special file systems, such as / proc,/sysfs -h Display capacity in customary units, such as KB,MB or GB -T Show file system types -m Display capacity in MB -k Display capacity in kilobytes. The def ...

1. token has two main functions: (1) Prevent form from being submitted repeatedly (set the time limit) Principle: generate a unique random identification number on the server side. The technical term is Token. At the same time, save the Token in the Session domain of the current user. Then the Token is ...

1.pconnect /** * Connects to a Redis instance or reuse a connection already established with pconnect/popen. * * The connection will not be closed on close or end of request until the php process ends. * So be patient on to many open FD's (specially on redis server side) when using persistent connection ...

(This article is based on Boost 1.69)Boost.Asio code style.Asio divides the declaration and implementation of some of the more complex classes into two header files for readability, and include s the header file of the implementation at the end of the header file of the declaration.The impl folder contains header files for these implementations ...

I. simple code example import asyncio from pyppeteer import launch async def main(): browser = await launch() page = await browser.newPage() #Open a new page await page.goto('https://www.baidu.com / ', visit Baidu await page.screenshot({'path': 'baidu.png'}) #Screenshot and store await browser.close() asyncio.get_event ...

Address of hongsoft official website http://www.arcsoft.com.cn Register the account on the official website, apply for the activation code of face recognition, select the SDK version and the operating system (windows/linux/android/ios), we select windows for the test, choose the application type as 1:N, and the functional module ...

1 Summary Use PostgreSQL 11.3 to create two nodes: node1 and node2; configure master-slave stream replication, and then make a manual switch (failover). To simplify the configuration process, two nodes are on the same physical machine. First, the master-slave synchronous flow replication is established. At first, node1 is the Primary node and ...

Two formats of 1: system.img system2_0.img: Linux rev 1.0 ext4 filesystem data, UUID=57f8f4bc-abf4-655f-bf67-946fc0f9f25b (extents) (large files) system1_0.img: Android sparse image, version: 1.0, Total of 393216 4096-byte output blocks in 1765 input chunks. //The above two formats are respectively: ext4 filesystem ...