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查看MAC地址 ``` bash [root@c1 ~]# ip addr 1: lo: mtu 65536 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128...
> Ubuntu 12.04.5 LTS > MySQL 5.5.47 > Atlas2.2 ### 安装Atlas2.2 ``` wget https://github.com/Qihoo360/Atlas/releases/download/2.2/Atlas-2.2-debian7.0-x86_64.deb sudo dpkg -i Atlas-2.2-debian7.0-x86_64.deb ``` ### 分别在主库从库创建帐号并授权 ``` grant all on *.* to atlas@'192.168.64.%' identified by...
http://mirror.bit.edu.cn/mysql/Downloads/MySQL-Proxy/mysql-proxy-0.8.4-linux-glibc2.3-x86-64bit.tar.gz ### 解压 ``` bash tar zxvf mysql-proxy-0.8.4-linux-glibc2.3-x86-64bit.tar.gz ``` ### 创建mysql-proxy帐号并授权 分别在主从数据库中创建mysqlproxy帐号 ``` mysql> grant all on *.* to mysqlproxy@'192.168.64.%' identified by 'mysqlproxy'; mysql> flush privileges; mysql> use mysql; mysql>...
_默认情况下MySQL的复制是异步的，Master上所有的更新操作写入Binlog之后并不确保所有的更新都被复制到Slave之上。异步操作虽然效率高，但是在Master/Slave出现问题的时候，存在很高数据不同步的风险，甚至可能丢失数据。_ _MySQL5.5引入半同步复制功能的目的是为了保证在master出问题的时候，至少有一台Slave的数据是完整的。在超时的情况下也可以临时转入异步复制，保障业务的正常使用，直到一台salve追赶上之后，继续切换到半同步模式。_ ### 具体配置 _mysql5.5半同步插件是由谷歌提供，具体位置/usr/lib/mysql/plugin/下，一个是master用的semisync_master.so，一个是slave用的semisync_slave.so，具体配置如下_ master: (1).安装插件 ``` mysql> INSTALL PLUGIN rpl_semi_sync_master SONAME 'semisync_master.so'; Query OK, 0 rows affected (0.39 sec) mysql> SET GLOBAL rpl_semi_sync_master_enabled = 1; Query OK, 0...
> Ubuntu 12.04.5 > mysql 5.5.47 > master 192.168.64.131 > slave 192.168.64.132 #### 修改master上mysql配置文件 ``` [mysqld] server-id = 131 #数据库ID log_bin = /var/log/mysql/mysql-bin.log #启用二进制日志 如果没有var/log/mysql这个目录，则需要创建. binlog-ignore-db = mysql #忽略同步的数据库 expire_logs_days...
https://github.com/alibaba/nginx-tfs ### 1. 安装依赖库 ``` bash sudo apt-get install cmake libpcre3 libpcre3-dev build-essential libssl-dev ``` ### 2. 安装yajl ``` bash git clone git://github.com/lloyd/yajl cd yajl ./configure make sudo make install...
# taobao tfs安装及配置 > 环境 > ubuntu 12.04.5 > gcc 4.6.3 ### 1. 安装相关依赖 ``` bash sudo apt-get install automake autoconf build-essential subversion uuid-dev libncurses5-dev libtool zlib1g-dev libreadline-dev ``` ###...
# 语法介绍 ## Guard Statement ``` swift guard condition else { statements return } ``` ### 示例 ``` swift func printArea(x: Int, y: Int) { // Validate that "x" argument...
Playground 使用手册 https://developer.apple.com/library/ios/recipes/Playground_Help/_index.html Playground Markup语法 https://developer.apple.com/library/ios/documentation/Xcode/Reference/xcode_markup_formatting_ref/index.html playground 页面排序和共享 http://swift.gg/2016/02/05/sorting-and-sharing-playground-pages/ 如何优雅地使用 Playground http://www.swiftyper.com/playground-advance-usage/ http://ericasadun.com/ https://leanpub.com/playgroundsecretsandpowertips https://leanpub.com/swiftdocumentationmarkup The Swift Programming Language (Swift 2.1) https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/index.html