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Today, I saw some people in the group who were unfamiliar with innodb and deleted ibdata (data file) and ib_logfile (transaction log) files by mistake. I don't know how to solve it. I didn't know what to do then. Later, relevant information was consulted. Find a solution. In fact, recovery is quite simple. It's hard when we don't know. Who says ...

linux Interprocess Communication Series 3, using socketpair, pipe 1. Using socketpair to realize interprocess communication is bidirectional. 2. Using pipe to realize interprocess communication The key point of using pipe: fd[0] can only be used for receiving, fd[1] can only be used for sending, it is one-way. 3. Use pipe and write in with ...

All the paths in this article are followed by an article: CentOS 7 multi-instance of yum installation MariaDB configuration https://blog.csdn.net/u011342720/article/details/83213558 Description: The following port is 3307 instance as main database and 3308 corresponding instance as slave database Master database configuration ...

Concurrent Server, HTTP Protocol for python Network Programming This document is only used for learning notes. Please indicate where it came from when it was reproduced. Single process server Complete a simple TCP server Case v11: ''' //Complete a simple TCP server //Single process server ''' from socket import * serSock ...

Continue the previous article: python cx_oracle operation database (1): import excle table into database Because of the recent use of cx_oracle, tkinter, pyinstaller, socket modules to make a project to implement the interface query operation of the database through the exe program, so it has not been updated. Step by step S ...

After looking at koa,express and their derivative frameworks, it seems that NodeJs'Web development framework can not jump out of a fixed pattern. This question also bothers PHP. Is it possible to simplify development through annotations?In fact, PHP has "annotations", but it is implemented by reading annotations through reflection, wh ...

# System Environment [root@db01 ~]# cat /etc/redhat-release;uname -r;uname -m CentOS release 6.8 (Final) 2.6.32-642.el6.x86_64 x86_64 # Software Acquisition Link: https://pan.baidu.com/s/12haBWs4wbUUMMNuBiZa5mA Extraction code: gr0i # Create mysql users [root@db01 ~]# useradd -u 800 -s /sbin/nologin -M mysql [root@db01 ~]# id mysql uid=800(my ...

I. struct   1. Brief introduction   We can use a module that converts the length of data to a fixed length of bytes. In this way, as long as the client accepts the fixed-length byte before receiving the message to see the size of the information to be received next, the final accepted data will stop as long as it reaches this value, and it will ...

Introduction to saltstack Saltstack is a C/S architecture configuration management tool based on Python. The bottom layer uses ZeroMQ message queue pub/sub mode to communicate, and uses SSL certificate issuance mode to manage authentication. Deployment is easy, it can run in a few minutes, scalability is good, it is easy to ...

Summary of Java IO Stream Learning VIII: Commons IO 2.5-IOUtils For reprinting, please indicate the source: http://blog.csdn.net/zhaoyanjun6/article/details/55051917 This article is from [Zhao Yanjun's blog] In the last article, I introduced the common usage of IO FileUtils, and today I introduce the use of IO Utils. Relevant Method ...