barracuda virtual load balancer

Ubuntu server 10.04, resin 3.1.10, nginx-0.7.65 Server Load balancer website Software and Hardware architecture Internet-> fire wall-> F5 Load balancer-> router-> Web servers (Ubuntu + nginx + resins)-> dB servers (Aix + Oracle)-> storage 1. Install Ubuntu Install it in vitrual box 3.2.4 and the network may be discon

The previous article on the introduction of load Balancer LVS has explained the principle of lvs-dr, this article mainly introduces its implementation process in MySQL application:Test environment: 4 virtual machines are CENTOS6 operating systems, using the system's own MySQL package installation test:650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/74/

devices;The client accesses the virtual IP address to obtain the service;Haproxy is a server Load balancer software that forwards requests to different hosts according to policies to achieve load balancing;Can realize judgment and allocation at the network layer or application layer; Mysql enables binary logs to achie

server with the smallest number of successive4: Weighted minimum connection algorithm (WLC) is to give each server a weight, the scheduler will keep the number of server connections and weights as far as possible balance5: The least-Connection scheduling algorithm based on locality (LBLC) is a scheduling algorithm for the target IP address of the request packet, the algorithm first finds the most recent destination IP address for all used servers based on the destination IP address of the reque

I. Introduction of keepalived SoftwareKeepalived is a software based on the VRRP protocol to achieve high availability, it can solve the problem of single point of failure, through the keepalived to build a highly available LVS load Balancing cluster, keepalived can also detect the running state of the background server.Ii. Introduction to the principle of VRRP protocolVRRP (Virtual Router Redundancy protoc

; # fastcgi_index index.php; # fastcgi_param script_filename/ Scripts$fastcgi_script_name; # include Fastcgi_params; #} # Deny access to. htaccess files, if Apache ' s document Root# concurs with Nginx ' s one##location ~/\.ht {# Deny All;#}}# Another virtual host using mix of ip-, name-, and port-based configuration##server {# Listen 8000;# Listen somename:8080;# server_name somename alias Another.alias;# location/{# root HTML;# index index.

Prepare for three virtual, all CentOS6.5 x86_64Note that the port consistency is maintained during the configuration process.Director (Eth0 192.168.1.189, VIP eth0:0: 192.168.1.18) Director 78Real Server1 (eth0 192.168.1.207, VIP lo:0:192.168.1.18) Server1 78Real Server2 (eth0 192.168.1.208, VIP lo:0:192.168.1.18) Server2 781, configure the static IP, installation test httpd (two sets of realserver to do)[email protected] ~]# Yum install-y httpd[[emai

:./lvsrs.sh Stop off* Modify permissions before executing: chmod 755 lvsrs.sh4.4.2 VerificationRESL Server Configuration [[Email protected] ~]# IP add1:lo: Link/loopback 00:00:00:00:00:00 BRD 00:00:00:00:00:00inet 127.0.0.1/8 Scope host Loinet 192.168.98.77/32 BRD 192.168.98.77 Scope Global lo:0INET6:: 1/128 Scope HostValid_lft Forever Preferred_lft Forever2:eth0: Link/ether 00:50:56:91:14:81 BRD FF:FF:FF:FF:FF:FFinet 192.168.98.118/24 BRD 192.168.98.255 Scope Global eth0Inet6 FE

Tags: des blog http io os ar for strong dataFirst, the environmentMaster (Host a): 192.168.1.1Slave (Host B): 192.168.1.2W-VIP (write): 192.168.1.3R-VIP (Read): 192.168.1.4Client (test): 192.168.1.100Operating system version: CentOS release 6.4MySQL database version: 5.6.14Keepalived version: 1.2.7LVS Version: 1.26All environments are virtual machinesSecond, design ideas1. Server A and B, synchronize the data through the MySQL slave process.2. Enable

1. Like Apache, they are both HTTP server software and adopt Modular Design for function implementation. They all support common language interfaces. At the same time, they also support forward and reverse proxies, virtual hosts, and URL rewriting,CompressionTransmission, SSL encrypted transmission, and so on. However, in terms of execution efficiency, nginx processes faster and consumes less memory resources. In addition, nginx also supports fcgi, wh

Nginx configuration file:nginx安装目录/conf/nginx.confReload the configuration file./nginx -s reloadConfiguring a virtual HostOne server is a single virtual host server { listen 80;//监听端口 server_name localhost;//域名 location / { root html; index index.html index.htm; } }Reverse Proxy and load balancingupstrea

index.php; # fastcgi_param script_filename/ Scripts$fastcgi_script_name; # include Fastcgi_params; #} # Deny access to. htaccess files, if Apache ' s document Root# concurs with Nginx ' s one##location ~//.ht {# Deny All;#}}# Another virtual host using mix of ip-, name-, and port-based configuration##server {# Listen 8000;# Listen somename:8080;# server_name somename alias Another.alias;# location/{# root HTML;# index index.html index.htm;# }#

the vhosts directory need to build two files, one is the servername list file, one is a virtual host configuration fileThe contents of two files were(1) servernameserver_name aaa.com 111.com // in this simple line, of course, this server_name can continue to add (2) virtual Host configuration fileserver {Listen 80;Include Vhosts/servername; The file here is the top servername list file .Location/{Proxy

Ngigx + Tomcat configure static/dynamic separation, Server Load balancer, and ngigxtomcat Since the company used Ngnix, I felt a little curious about Nginx, So I studied it. My version used in windows is nginx-1.8.1: 1. Start Ngnix Double-click nginx-1.8.1. nginx.exe in the folder. If two nginx processes exist in the task manager, the startup is successful! 2. Common Ngnix commands Forced nginx-s stop Shutd

Resttemplate can be automatically configured to use the Ribbon. To create a load balancing resttemplate create a resttemplate @Bean and use the @loadbalanced qualifier.Warning: resttemplate beans are no longer created with automatic configuration. It must be created by a single application.@Configurationpublic class MyConfiguration { @LoadBalanced @Bean RestTemplate restTemplate() { return new RestTemplate(); }}public class MyClass

RestTemplateCan be automatically configured to use the Ribbon. Create RestTemplate RestTemplate @Bean and use qualifiers to create load balancing @LoadBalanced .Warning: Beans are no longer created through automatic configuration RestTemplate . It must be created by a single application.@Configuration Public classmyconfiguration {@LoadBalanced @Bean resttemplate resttemplate () {return Newresttemplate (); }} Public classMyClass {@AutowiredPrivaterest

Resttemplate can be automatically configured to use the Ribbon. To create a load balancing resttemplate create a resttemplate @Bean and use the @loadbalanced qualifier.Warning: resttemplate beans are no longer created with automatic configuration. It must be created by a single application.@Configurationpublic class MyConfiguration { @LoadBalanced @Bean RestTemplate restTemplate() { return new RestTemplate(); }}public class MyClass

Resttemplate can be automatically configured to use the Ribbon. To create a load balancing resttemplate create a resttemplate @Bean and use the @loadbalanced qualifier.Warning: resttemplate beans are no longer created with automatic configuration. It must be created by a single application.@Configurationpublic class MyConfiguration { @LoadBalanced @Bean RestTemplate restTemplate() { return new RestTemplate(); }}public class MyClass

Resttemplate can be automatically configured to use the Ribbon. To create a load balancing resttemplate create a resttemplate @Bean and use the @loadbalanced qualifier.Warning: resttemplate beans are no longer created with automatic configuration. It must be created by a single application.@Configurationpublic class MyConfiguration { @LoadBalanced @Bean RestTemplate restTemplate() { return new RestTemplate(); }}public class MyClass

RestTemplate can be automatically configured to use the Ribbon. Create RestTemplate RestTemplate @Bean and use @LoadBalanced qualifiers to create load balancing. Warning The bean is no longer created by automatic configuration RestTemplate . It must be created by a single application. @Configurationpublic class MyConfiguration { @LoadBalanced @Bean RestTemplate restTemplate() { return new RestTemplat