load balancer sticky session

1. Yum Installation NginxYum Install Nginx2. Start NginxChkconfig nginx on service nginx startTo put the test file into the Web server:[HTML]View Plaincopy print? html> head> title>welcome to nginx! title> head> body bgcolor="white" text="Black"> Center>H1>welcome to nginx! 192.168.232.132H1>Center> body> html> To configure the Load Balancer server:Vi/etc/nginx

html; index index.html index.htm; proxy_pass http://nginxDemo; #配置方向代理地址 }Such as:3. Start Nginx and Tomcat to accessI am a Windows system, so just double-click Nginx.exe in the nginx-1.10.1 directory.can be viewed in Task ManagerFinally enter the address in the browser: http://localhost:8080/nginxDemo/index.jsp, each visit will take turns to access Tomcat (if F5 refresh is not used, it is recommended to try to put the mouse pointer to the address bar, click the Enter key).H

Objective: to use apache and tomcat to configure a web site that can be applied, you must meet the following requirements: 1. use Apache as an HttpServer, and connect multiple tomcat application instances to achieve load balancing. 2. set the Session timeout for the system... objective: to use apache and tomcat to configure a web site that can be applied, you must meet the following requirements: 1. use Apa

IP Proxy_set_header Host $host; Proxy_set_header X-real-ip $remote _addr; Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for; #禁用缓存 Proxy_buffering off; #设置反向代理的地址 Proxy_pass http://192.168.1.1; } The proxy address is modified according to the actual situation. 4. Load Balancing Configuration Nginx upstream by default is a poll-based load balancing, in this way, each request in chronological orde

IPProxy_set_header Host $host;Proxy_set_header X-real-ip $remote _addr;Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for;#禁用缓存Proxy_buffering off;#设置反向代理的地址Proxy_pass http://192.168.1.1;}The proxy address is modified according to the actual situation.4. Load Balancing configurationNginx upstream by default is a poll-based load balancing, in this way, each request in chronological order to a diff

HaproxyLayer-7 Server Load balancer Lab environment: 192.168.1.27 haproxy 192.168.1.3 web1 192.168.1.4 web2 1. Download and install haproxy # Wget http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.19.tar.gz # Tar zxvf haproxy-1.4.19.tar.gz #CDHaproxy-1.4.19 # Make target = linux26 # Make install 2. Configuration VI/etc/haproxy. cfg Global Log 127.0.0.1 local0 info # log [err warning info debug] Maxconn 409

Nginx Server Load balancer Configuration There are many Load Balancing Methods for WEB Services, but using Nginx for load balancing deployment is undoubtedly very efficient and very popular. I do most of it myself.. NET development, but the deployment load has been using Ngi

server IP under WCF. Such as　　　　At present, the socket server, or a server, if the merchant and the distribution staff reached a certain amount, a single server is unable to support, I think the next step is to consider the socket load balancing things, if any friends understand, also please enlighten under ha.ConclusionI was the first to deploy, before this is really not sure whether I can complete the matter, halfway also want to give up (nothing i

; 　　Proxy_set_header X-real-ip $remote _addr; 　　Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for; 　　Proxy_buffering off; Proxy_passHttp://wwwbackend; }}3. Testing./ is is successful4. Reload the configuration file/etc/init.d/nginx ReloadIf you restart the report PID error, under the installation path-C reload the configuration file.5, about the parameter description of Nginx configurationA, polling each request according to the Nginx configuration file in order, distributed

Solutions for LVS Server Load balancer tcp persistent connection Distribution Although the application keepalived solves the backend server Load balancer and high availability problems, you must pay attention to many problems in specific applications. Many applications use tcp or http persistent connections. Because th

The server Load balancer device allows you to easily expand a web server to a Web server cluster (provided that all Web servers must be configured completely the same, the device will send the request accordingAlgorithmTo a server in the web server cluster, which greatly increases the concurrent processing capability of the Web server. In practical applications, multiple Web servers are usually deployed i

, such as a user sending a login request to port 82, 82The port holds the user's login session data, but when the user requests the homepage, it is randomly forwarded to port 81, and the 81-port backend has no user's session status at all;So tell the user you are not logged in;Now there are two ways to think:(1) Change Nginx load balancing algorithm, instead of a

1. install Apache and tomcat. Assume that apache2.2.3, tomcat6.x, Apache is installed on apachehost, Tomcat is installed on tomcathost1 and tomcathost2, respectively. modify/etc/httpd/CONF/httpd. CONF file. Make sure the following lines are not commented out. 3. Modify the/etc/httpd/CONF/httpd. conf file and add the following lines: * Lbmethod configuration instructions: Lbmethod = byrequests balanced by the number of requests (default) Lbmethod = bytraffic traffic balancing Lbmethod = bybusyne

client.Advantage: You can increase the hit rate of the cache (the same URL will be assigned to the same server as far as possible);Disadvantage: It is possible to cause a single point bottleneck (weights invalid).4, according to the parameters in the request URL, balance Url_param.The hashed operation is matched according to the specified URL parameter.Pros: More flexible, can increase the hit rate of the cache (the same specified parameters will be allocated to the same server asService);Disad

servers (specific IIS servers) for front-end loadThe configuration is very simple, as follows:1. Download the nginx version of Windows, search on the internet on the line. Download and unzip it on the C server (192.168.0.3) C: or D: directory, for example (C:/nginx)2. Copy the ASP. NET site to a server (192.168.0.1), b Server (192.168.0.2), and set up the appropriate IIS, the port is self-defined, for example (81)Make sure that the a server and B server Pages are exactly the same, and that Web.

servers (specific IIS servers) for front-end loadThe configuration is very simple, as follows:1. Download the nginx version of Windows, search on the internet on the line. Download and unzip it on the C server (192.168.0.3) C: or D: directory, for example (C:\nginx)2. Copy the ASP. NET site to a server (192.168.0.1), b Server (192.168.0.2), and set up the appropriate IIS, the port is self-defined, for example (81)Make sure that the a server and B server Pages are exactly the same, and that Web.

libtcl8.5.so statement is displayed, indicating that the installation is successful.Start to install redisTar zxvf redis-2.4.14.tar.gzCD redis-2.4.14MakeMake TestMake installEcho 1>/proc/sys/Vm/overcommit_memorySudo-SMkdir-P/usr/local/redis/binMkdir-P/usr/local/redis/etcMkdir-P/usr/local/redis/varCP redis-server redis-cli redis-benchmark redis-STAT/usr/local/redis/bin/CP redis. CONF/usr/local/redis/etc/Vim redis. confThe current directory redis. conf is the redis device file.Daemonize no change

Recently, the company had a project where users worried that a single machine could not afford the most users, and they required to use the application cluster. We designed the application cluster architecture based on the application situation. The architecture diagram is as follows: 650) this. width = 650; "style =" border-bottom: 0px; border-left: 0px; margin: 0px; border-top: 0px; border-right: 0px "title =" logical architecture "border =" 0 "alt =" logical architecture "src =" http://www.bk

Record Server Load balancer web Service requests based on DNS As a forum site: There are two types of data to be processed:1. structured data, such as user names and user comments, can be stored in relational databases. 2. unstructured data, such as attachments uploaded by users. Stored in the file system. Forum architecture: Use two httpd servers to serve users' access requests. Use the record of DNS for c

One of the simplest load-balancing tests, which does not involve session replication, simply assigns the request to a different server.1. Create a simple Web application. There is only one index.jsp page, the content is as follows. hello,nginx! System.out.println ("*****************nginx do load Balancing to assign requests t