nginx load balancer setup

more famous sites and organizations are using LVS set up the cluster system, For example: The Linux portal (www.linux.com), real Company (www.real.com), the world's largest open source website (sourceforge.net), which provides audio and video services to RealPlayer.II. structure of the LVS systemThe server cluster system with LVS is composed of three parts: the most front-end load balancer layer, represent

chosen here is polling, or other options available)④, new Members column: First select new address, then add the second set of two Apache server IP addresses 192.168.1.23, 192.168.1.24, and their port 80 Vii. Create a seven-layer load-balanced use Profiles Configuration 　　★ Create Profiles Demo page: http://blog.s135.com/book/f5/profiles_create.htm　　1 , creating Profiles Configuration: profile_http Click the "Create" button on the "Local traffi

config file inside the tomcat2. First we modify the tomcat2/bin below startup.sh and shutdown.sh add the contentExport Java_home=/usr/java/jdk1.7.0_71export path= $PATH: $JAVA _home/binexport classpath=.: $JAVA _home/lib/tools.jar : $JAVA _home/lib: $JAVA _home/binexport catalina_home= $CATALINA _2_home export catalina_base= $CATALINA _2_base And then go in there and change a few places in Tomcat2/server.xml.The 8005->8006,8080->8081,8009->8010 is good (the specific port by itself will be OK)

Server Load balancer is a technology that implements Load Balancing through an algorithm. In layman's terms, requests are uniformly distributed to devices,Server Load balancer will receive all requests in a unified manner, and then distribute these requests to the server

: First select new address, then add the second set of two Apache server IP addresses 192.168.1.23, 192.168.1.24, and their port 80 　　VII. Create a profiles configuration for seven-tier load balancing use　　★ Create Profiles Demo page: http://blog.zyan.cc/book/f5/profiles_create.htm　　1. Create Profiles configuration: Profile_httpClick the "Create" button on the "Local traffic→profiles" page:①, Name field fill in: Profile_http (fill in an English

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

; # 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.

Load balancer can be used with LVS scheme, but to prevent single point of failure, you can choose lvs+keepalived combination to ensure high availability Focus : Each node synchronizes timeNtpdate time.windows.com1. Introduction to the EnvironmentOperating system: Centos6.6Dr Tops: Ipvs management tools: ipvsadm,keepalivedRealserver tops: Nginx or Apache650) this.

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;# }#

] ~]# Curl 192.168.11.110rs2rs2rs2Change the polling algorithm to WRR, the weight is 2, and then execute the file, the error hint file already exists , because the /usr/local/sbin/lvs_dr.sh script file is already up eth1:0, So need to add in the script: Ifconfig eth1:0 down, then will not error;$IPV-A-t $VIP: 80-s wrr$ipv-a-T $vip: 80-r $rs 1:80-g-W 2$ipv-a-t $vip: 80-r $rs 2:80-g-W 1[[email protected] ~]# BASH/USR/LOCAL/SBIN/LVS_DR.SHSIOCADDRT: File already existsIf one of the RS is hung, it wi

Nginx listen listening IP address using SED to replace the empty, and then save, restart Nginx.Observe again:650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/6F/8F/wKiom1Wfn4nw-jOBAAI4XQsY3A0551.jpg "title=" LVS does not forward requests. png "alt=" wkiom1wfn4nw-jobaai4xqsy3a0551.jpg "/>As you can see, it's OK.Because the collation of the relatively hasty, what is not in place, but also ask you a lot of guidance. A lot of criticism. It is h

Although the previous LVS have been configured successfully and load balanced, we found that when a real server stopped the Nginx process, the Director would still forward the request to the past, which caused some requests to be abnormal. So there needs to be a mechanism to detect the state of real server, which is keepalived. In addition to detecting the RS State, it can also detect the state of the stand

load balancing is mainly through the server node to install the device specifically for load balancing, such as F5, and software load balancing is to complete the request distribution work by installing some software with load balancing function or module on the server, such as Ng