printf usage

I. MySQL installation directory descriptionmysql5.6 installed under/data/mysql56 with a binary installation packageThe Data directory is/data/mysql56/dataThe configuration file is/etc/my.cnfSecond, multi-instance directory description/mysql-instance|

1. Compile and install CMake# tar zxf cmake-3.5.2.tar.gz#./configure# Gmake # Gmake Install3. Compile and install MySQL#useradd mysql-s/sbin/nologin-m # yum install ncurses-devel-y# yum install libaio-devel-y# tar xvf mysql-5.5.49.tar.g z# CD mysql-5

Due to background reasons, the master-slave synchronization is to be based on the MySQL 5.1 version, master-slave synchronization is mainly a database read and write access to the original database heat is too large, need to be used from the library

MySQL Multi-instanceHere select multiple profiles, multiple boot files, multiple data files this scenarioAnother option is to do it in the same configuration file.Use the/data directory as the total root directory for MySQL multiple instances, and

[Email protected] ~]# ll/usr/local/|grep mysqllrwxrwxrwx. 1 root root June 01:52 MySQL--/alidata/server/mysql# This is a script-free installation environment (more complex)[Email protected]/]# tree/data//data/├──3307│└──data└──3308 └──data4

1. In the data directory, create a new/data/3306/data/data/3307/data2. Modify PermissionsChown-r Mysql:mysql/data3. Copying filescd/data/3306/Cp/usr/local/mysql/support-files/my-small.cnf.MV My-small.cnf MY.CNF4. Modify the My.cnf fileCat

change According to single instance, the main change file is my.cnf files and MySQL fileMultiple instances with Port distinctionNote the changes to the ports in the following files, and the user password

1 Network Programming API(1) The IP address of the network layer can uniquely identify the host in the network, and the transport layer uniquely identifies the application in the host through Protocol + port. This has been the process of identifying

D-2.1   Add an instance (3309instance)D-2.1.1 , create a directory# Cd/data# mkdir 3309/data D-2.1. 2. Create my.cnf file in/data/3309[Client]port=3309Socket=/data/3309/mysql.sockPrompt=\\[email protected] \\r:\\m:\\s->[Mysqld]Basedir

Truncate is very simple to use:int truncate (const char *path, off_t length);Parameter 1: File nameParameter 2: Size The file needs to be resizedLength is greater than file size, the file is filled with empty bytes or emptyLength is less than the

Article Title: cpu affinity settings. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. # Include # Include #

Source: bkbll@cnhonker.net & evil baboons 1. preface.In Buffer overflow in Linux, there are many shellcodes used to jump to the stack. in windows, there are many jumps using jmp esp. There is no new technology in this article, but it is just a whim,

Device-driven vulnerabilities are now growing to be a major threat to the security of Windows and other operating systems. This is a new field, but there are few public technical documents describing this aspect. As far as I know, the first windows

Fashion and fashion: the most fashionable Buffer Overflow targetIn today's operating systems, memory defect vulnerabilities have become increasingly difficult to mine, and stack protection measures have made the original Buffer Overflow exploitation

Multi-threaded TCP server project [Open Source], multi-threaded tcp Open Source This document provides a complete TCP Server instance, including dynamic Connection Library, unit test, acceptance test, and Winform simulation test. For beginners to

C ++ MFC common functions (conversion) and mfc Functions WinExec () ExitWindowsEx () GlobalMemoryStatus () GetSystemInfo () GetSystemDirectory () GetWindowsDirectory () GetTaskmanWindow () // obtain the taskbar window handle in

Because the ET pattern needs to be read in a loop, but during the reading process, if a new event arrives, it is likely that another thread is triggering the socket to handle it, which is a mess.Epoll_oneshot is used to avoid this situation. Note

Package MainImport ("Flag""FMT""IO""Log""Net/http""OS""StrConv""Strings""Time""GITHUB.COM/CHEGGAAA/PB")VAR (URL = flag. String ("url", "", "the download file URL."))Func Usage () {Fmt. Printf ("Usage of%s:\n-url=\" http://www.xxx.com/file.exe\ ":

  The sample code is as follows: Frameworks \ base \ services \ surfaceflinger \ tests \ screencap. cpp   /* * Copyright (C) 2010 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License "); * You may not use

I recently started mysql. I want to use C to store binary files (64 k, large storage path) in the database over the past two days. after my unremitting search, I found that there is only one version on NET (php is used as an example), and it won't