simple load balancer

the proxy function of the Apache load balancer mod_proxy moduleThis is just the first time in the experimental environment to achieve Apache Agent, the implementation of the process is relatively simple, I am on a virtual machine (IP:192.168.1.116) using yum installed httpd,php and Tomcat,apache-tomcat-7.0.56. First step:yum installs httpd,php. After installation

One, reverse proxyDescription: There should be an Nginx server with multiple application servers (which can be Tomcat), this article uses a virtual machine, installs an nginx, multiple tomcat, to simulateUpstream Tomcats{server 192.168.25.148:8080;server 192.168.25.148:8081;} server { listen ; server_name tomcat.taotao.com; #charset Koi8-r; #access_log logs/host.access.log main; Location/{ proxy_pass http://tomcats; Index index

/mod_proxy.soLoadModule Proxy_module modules/mod_proxy_ajp.soLoadModule Proxy_balancer_module modules/mod_proxy_balancer.soLoadModule Proxy_http_module modules/mod_proxy_http.soLoadModule Proxy_http_module modules/mod_status.so2. Add proxy agent Proxypass in httpd.confAdd the following configuration:proxypass/images! Proxypass/css! Proxypass/js! Proxypass/balancer-manager ! Proxypass/balancer://mycluster/1

Remember that there is a question in NP about the non-equivalent Server Load balancer of China. The answer is controversial. Today, I'm going to verify the non-equivalent Server Load balancer of the network. First of all, the non-equivalent Server Load

NAT type of Load Balancer cluster LVS under Linux1. The cluster type is divided into 3 types:Lb:load balancing, load balancingHa:high Availability , High availabilityHp:high performance, high performanceThe 2.LB load Balancer four layer LVS type is divided into the followin

0.0 112680 976 pts/0 R+ 18:25 0:00 grep --color=auto keepAlso need to be performed on two RSsh /usr/local/sbin/lvs_dr_rs.sh4. TestingTest Method 1:Enter the VIP in the browser 192.168.242.110 and then deliberately stop an RS nginx service, then refresh the browser to see the results.Test Method 2:In the scheduler, execute the relevant command to view the number of connections:[[emailprotected] ~]# ipvsadm -lnIP Virtual Server version 1.2.1 (size=4096)Prot LocalAddress:Port Scheduler F

/nginx/conf.d/*.conf; Upstream Ken {server 172.20.10.8 weight=1 max_fails=3 fail_timeout=5; Server 172.20.10.9 weight=2 max_fails=3 fail_timeout=5; } server {Listen default_server; Listen [::]:80 default_server; server_name _; root/var/www/html; Index index.php index.html; # Load configuration files for the default server block. # Include/etc/nginx/default.d/*.conf; Location/{Proxy_passhttp://ken/;

Use httpd to configure Server Load balancer for Tomcat Experimental System: CentOS 6.6 _ x86_64 Prerequisites: Prepare the compiling environment in advance, and disable both firewall and selinux. Tutorial Description: There are two hosts in this experiment, and IP addresses are allocated as topology. Experimental software: jdk-8u60-linux-x64 apache-tomcat-8.0.24 tomcat-connectors-1.2.41 httpd-2.2.15 httpd-d

HAProxy for Server Load balancer HAProxy provides high availability, Server Load balancer, and TCP and HTTP application-based proxy. It supports Virtual Hosts and is a free, fast, and reliable solution. HAProxy is especially suitable for websites with extremely high loads, which usually require session persistence or l

Detailed configuration of Server Load balancer in lvs dr mode in CentOS 1. Prepare for LVS installation: 1. Prepare four Centos 6.2 x86_64 Note: SELinux and IPtables firewalls are disabled in this experiment. Management IP address role remarks 192.168.1.101LVS Master scheduler (Master ctor) provides external services with VIP 192.168.1.180192.168.1.114LVS slave scheduler (Backup Director) which can be used

Nginx Load Balancer monitoring node status v plug-in (ngx_http_upstream_check_module) Upstream_check_module Introduction: The module can provide Tengine with proactive backend server health checks.The module is not enabled by default before the Tengine-1.4.0 version, it can be opened when the compile option is configured:./configure--with-http_upstream_check_module Upstream_check_mo

Linux Cluster Server Load balancer lab notes I,Network Topology: II,Virtual Machine Configuration Create three virtual machines on one physical computer.WindowsOperating System, Configuration192.168.1.0The IP address of the CIDR block.Centos5.4. One Server Load balancer instance must be configured with two NI

/webapps/testapp/index.jspsetting the Tomcat environment variable[Email protected] tomcat]# Vim/etc/profile.d/tomcat.shexport Catalina_home=/usr/local/tomcatexport PATH= $CATALINA _Home/bin: $PATH [[email protected] tomcat]#. /etc/profile.d/tomcat.shSetup Complete Start Service[[email protected] tomcat]# catalina.sh startaccess to the TestApp application is normal650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/6E/B3/wKiom1WC-dzTJ1AvAAC2EP4IqPY563.jpg "/>Tomcat-02DeploymentIn addition

2.3 wget and curlWget and curl are two common file transfer tool software based on command line. These two tools are similar but different. Both tools can download content through FTP, HTTP, or HTTPS. With these tools, we can simulate the client to send various TCP requests to Server Load balancer, to study how Server Load ba