kemp load balancer support

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

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 ma

1. Download Tomcat 8.0.17 http://apache.fayea.com/tomcat/tomcat-8/v8.0.17/bin/apache-tomcat-8.0.17.tar.gz(Tomcat 8, must have JDK 1.7 support, this assumes that you have configured the JDK1.7 environment, if not configured, please self-Baidu)2. Extract the above tomcat to a local directory: (renamed as: tomcat80171, tomcat80172e:/tomcat-test/tomcat80171e:/tomcat-test/tomcat801723. Make the following modifications to the tomcat80172 E:\tomcat-test\tomc

Software and jar packages required by Server Load balancerRedis-2.4.14.tar.gzTcl8.5.11-src.tar.gzNginx-1.2.0.tar.gzTomcat-redis-session-manager-1.0.jarCommons-pool-1.6-bin.tar.gzJedis-2.1.0.jarStep 1: install Tomcat to support redis cache policies1. Copy the JAR file to ￥atat_home/lib /.2. Correct ￥ atat_home/CONF/context. xmlAddHost = "localhost"Port = "6379"Database = "0"Maxinactiveinterval = "60"/>Step 2

Redissessionstateprovider component.Install-package Microsoft.Web.RedisSessionStateProvider 　　3, Nginx Service status situationEnter the command service Nginx status at the CentOS terminal to view the situation and ensure that the service is running properly.4. Web site DeploymentDeploy two sites for:Site A: port is 8081,Site B: Port is 8082,　　Second, the function effect shows(1) The browser accesses the index method, Http://192.168.119.128/demo, as shown below:(2) Browser access GetSessi

1. Introduction to HAproxy HAproxy is a high-performance proxy server. It provides Lay4 and Lay7 proxies, featuring Healthcheck, Server Load balancer, and access control. It can support tens of thousands of concurrent connections with excellent performance. In addition, the HAproxy operating mode enables it to be easily and securely integrated into the current ar

shunt, the rest of the other back end. 4) Upstream_hashto solve some of the ip_hash problems, you can use Upstream_hash, the third-party module, which is used in most cases as url_hash, but does not prevent it from being used for session sharing:If the front end is squid, he will add IP to x_forwarded_for this http_header, with Upstream_hash can use this head to do the factor, the request directed to the specified backend:This document is visible:http://www.oschina.net/discuss/thread/622in the

Haproxy.cfg Configuration file Contents#全局配置global log 127.0.0.1 local0 log 127.0.0.1 local1 notice #log loghost local0 info m Axconn 8192 #chroot的路径 chroot/usr/local/haproxy #运行用户和组的id uid #以守护进程 Form run Daemon #debug quiet #进程数量 based on server performance tuning Nbproc #pid路径 pidfile/var/ru n/haproxy/haproxy.pid# The default global configuration, these parameters are used to configure the Frontend,backend,listen component defaults log global #所处理的类别 (#7层 http;4 Layer TCP) Mode HTTP #

realserver 1 ", the webpage information provided by 192.168.24.45 is "welcome realserver 2" # ipvsadm-A-t 172.16.100.24: 80-s rr # ipvsadm-a-t 172.16.100.24: 80-r 192.168.24.44-m # ipvsadm-a-t 172.16.100.24: 80-r 192.168.24.45-m # ipvsadm-L-n -- view the defined rules. These rules are temporary rules, it will not take effect permanently. To save the rule permanently, run the following command: # service ipvsadm save 5. access 172.16.100.24 in the Internet Explorer, as shown in: If you access 17

must set the CONNECT_DATA parameter !! (Address = (Protocol = TCP) (host = IP-1) (Port = 1521 )) (Address = (Protocol = TCP) (host = IP-2) (Port = 1521 )) .... (CONNECT_DATA = (SERVICE_NAME = Service) (Failover_mode = (Type = {None| Session | select}) # function level of session reconnection. (Method = {Basic| Preconnect}) # is the connection established during failover or in advance? (Retries = 5) # Number of Retries (Delay = 1) # retry Delay ) ) Three Oracle client

Keepalived Master/Slave Server Load balancer, based on the LAMP Platform1. Introduction to the basic principles of keepalived Keepalived was initially designed to achieve high availability and lightweight lvs front-end ctor. Vrrp protocol. VRRP is a fault tolerance protocol that ensures that when the next hop router of the host fails, another router is used to replace the faulty router, this ensures the con

A website uses nginx for load balancing and multiple nginx servers at the backend. Encountered a problem, when it is used as SSL support, the front-end nginx is distributed to the back-end nginx and becomes an HTTP form (in this way, the backend PHP cannot be judged by $ _ server [HTTPS] = "on, but the backend must also know this parameter). If you change to https, you also need multiple certificates. There

://s3.51cto.com/wyfs02/M01/54/2F/wKioL1R7TGfAErb6AAJAw47UE4I269.jpg "Title =" ee.png "alt =" wkiol1r7tgfaerb6aajaw47ue4i269.jpg "/> View on the browser 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M01/54/30/wKiom1R7TCahZkwRAAFCm6IKzio325.jpg "Title =" q.png "alt =" wkiom1r7tcahzkwraafcm6ikzio325.jpg "/> Complete. The experiment on the master and slave machines is complete, which is very simple .. There is also the service load balancing

Today, the teacher talked about the server architecture. Although simple, there are still some difficulties. We need to expand the architecture on this basis. There is data synchronization during Server Load balancer. Baidu later saw the previous generation share: Inotify + Rsync is used to implement batch synchronization and batch update of Linux Files in batches. This should be a frequent task for O M pe