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Set Nginx Status page, if not, you may need to compile the installation, use Nginx-v to view the compilation parameters server {Listen 81;server_name localhost;Location/nginx_status{Stub_status on;Access_log

Document directory Implement iterator Iterator: 1,A ruby iterator is a simple method that can receive code blocks (for example, the each method is an iterator ). Feature: if a method contains yield calls, this method must beIterator 2. There is

Explain what is GPL,GNU, free software?GPL: (general Public License): A power to grant, modify, and redistribute free software to any person.GNU: (Slave program): The goal is to create a completely free and open operating system.Free software: A

MySQL implementation calls external programs and system commandsRefer:Http://www.cnblogs.com/yunsicai/p/4080864.html1) Download Lib_mysqludf_sys $ git clone https://github.com/mysqludf/lib_mysqludf_sys.git2) Get MySQL plugin dir as Libdir:MySQL >

Before using PDO to connect to a database, install and configure the PDOBase. PHP is as follows:[PHP]View PlainCopy "FONT-SIZE:18PX;" > Header (' Content-type:text/html;charset=utf-8 '); Array Debug functions function Show_bug

MongoDB replica set and management MongoDB replication Set Overview What is a replication set A replica set is an additional copy of the data that is the process of synchronizing data across multiple servers, providing redundancy and

System Tuning Parameters:L = A (arrival rate) * W (total service time)L LOWER the better, w lower the betterAwk is simple to use:1.awk-f: ' {print '} '/path prints the first column of data with ': ' As a delimiter2.df-p | awk ' {print $ ' is mounted

1. Main steps to build Redis cluster1.配置开启节点2.meet3.指派槽4.主从关系分配2. Environmental statement两台虚拟机，IP地址分别为：192.168.81.100和192.168.81.101两台虚拟机操作系统均为：CentOS 7.5 64位两台虚拟机系统说明： 使用yum方式安装Redis 关闭firewalld防火墙使用两台虚拟机的7000,7001,7002端口搭建三主三从的Redis Cluster

Series:To deploy the Haproxy total directory structure[[Email protected] srv]# tree salt/salt/├── base│   ├── init│    │   ├── audit.sls│   │   ├── dns.sls│    │   ├── env_init.sls│   │   ├──  epel.sls│   │   ├── files│   │   │    └── resolv.conf│