As more and more application architectures are decoupled and distributed, the requirements and dependencies of load balancer devices are increasing while the component scale-out capability increases, and the load-balancing devices are required to have strong scale-out capability. Load balancing clustering technology is
"I am a novice in load balancing, the documentation is too complex and needs getting started. ”"I want to initialize a load balancer for the first time in life and need guidance. ”If you are a novice, if you first touch the load balancer, if its name is Citrix
the environment.
4. E-commerce Web site High-performance, highly available solutions, LVS load balancing (front-end four-tier load balancer).
5. The key point explanation of the construction process, the key step explanation.
6. This program has been used in practical production applications for many times, and can be flexibly applied.
Second, the software
multiple devices can complete the task together, eliminating or avoiding the bottleneck of unbalanced network load distribution and long response time of data traffic congestion. For different Server Load balancer modes, Layer 2, Layer 3, Layer 4, and Layer 7 Server Load balancer
F5 BIG-IP Server Load balancer configuration instance and Web Management Interface experience [original] Big | medium | small [| by banquet] [Author: Zhang banquet this article version: V1.0 last modified: for more information, see http://blog.s135.com/f5_big_ip].
Recently, the performance of F5 BIG-IP and Citrix NetScaler L
address of the receiving system to address the construction, maintenance, and cancellation of Physical connection optical fiber, coaxial cable, and,
Twisted pair wires, reconnections, and hubs 3. multi-line multi-region smart DNS resolution and hybrid load balancing 4. after Nginx Reverse proxy configuration uses reverse proxy, the backend WEB server (taking PHP as an example ), you cannot directly use the $ _ SERVER ['remote _ ADDR '] variable to ob
(taking PHP as an example ), you cannot directly use the $ _ SERVER ['remote _ ADDR '] variable to obtain the real IP address of the user. In this case, the IP address of the Nginx SERVER Load balancer is obtained. In this case, you need to add the Header information X-Forwarded-For in the Nginx reverse proxy so that the backend SERVER can get the user's real IP address through $ _ SERVER ['HTTP-X-FORWORDE
[Article Zhang Feast this article version: v1.0 last modified: 2008.05.22 reproduced Please specify from: HTTP://BLOG.S135.COM/F5_BIG_IP]In the recent comparison of testing the performance of F5 big-IP and Citrix NetScaler load balancers, write this article to document the common application configuration methods for F5 big-IP.Currently, many vendors have launched a loa
Reprint: http://www.zyan.cc/f5_big_ip/In the recent comparison of testing the performance of F5 big-IP and Citrix NetScaler load balancers, write this article to document the common application configuration methods for F5 big-IP.Currently, many vendors have launched a load balancer dedicated to balancing server
The current development trend of the website for the use of network load balancing is as the scale of the website increases according to different stages to use different technologies:One is through hardware. Common Hardware includes expensive NetScaler, F5, radware, array, and other commercial load balancers, it has the advantage of a professional maintenance te
Ningx acts as a Load balancer and is also a reverse proxy server. The configuration syntax is quite simple. It can be used to balance the backend servers by round robin, IP_hash, url_hash, weight, and other methods, it also supports backend server health check. In addition, it has advantages over LVS because it is based on Layer 7 Server Load
Summary: For a large website, Server Load balancer is an eternal topic. With the rapid development of hardware technology, more and more Server Load balancer hardware devices are emerging, such as F5 big-IP, Citrix NetScaler, and radware, however, the high price is often pro
from:http://yuhongchun.blog.51cto.com/1604432/697466
Now the trend of Web site development on the use of Network Load balancing with the increase of site size according to different stages to use different technologies:One is the hardware to carry out, the common hardware has more expensive NetScaler, F5, Radware and array and other commercial load
Based on the huge network structure, the use of cluster servers brings a lot of traffic and other load problems. In contrast, Server Load balancer technology has also emerged. Every technology requires Product Support. Now let's get to know one of F5 Server Load balancer. Fi
. The client program is not affected by the server cluster and requires no modification. The scalability of the system is achieved by transparently joining or deleting a node in the server cluster, by detecting node or service process failures and correctly resetting the system to high availability.The abstract architecture of LVS is divided into three tiers: Load Scheduler (Payload balancer), server pool,
Based on the huge network structure, the use of Cluster Server brings a lot of load problems such as traffic. So the relative, load-balanced technology also emerged. Each technology requires product support, so let's now look at one of the F5 load balancers. So first of all, we first introduce the structure of the product function.Many vendors have launched a
Browser access 192.168.142.147, multiple visits several times to see the difference in results[[emailprotected] ~]# curl 192.168.110.130akuilinux-02[[emailprotected] ~]# curl 192.168.110.130akuilinux-02[[emailprotected] ~]# curl 192.168.110.130akuilinux-03[[emailprotected] ~]# curl 192.168.110.130akuilinux-02[[emailprotected] ~]# curl 192.168.110.130akuilinux-03Extended
Three models of LVs detailed
vs several algorithms
About Arp_ig
192.168.16.16;
# Charset koi8-r;Charset UTF-8;# Set access logs for the current virtual hostAccess_log logs/host. access. log main;# If you access/img/*,/js/*,/css/* resources, you can directly obtain the local document without passing squid# If there are many documents, this method is not recommended because the squid cache has better results.# Location ~ ^/(Img | js | css )/{# Root/data3/Html;# Expires 24 h;#}# Enable Server Load
F5 is one of our most popular Server Load balancer products, so here we will introduce its configuration on the actual business platform. Through this case, I hope you will have a clear understanding of the specific use and configuration of this product. For more information, please refer to the following section.I. Network Topology650) this. width = 650; "border =" 0 "alt =" "src =" http://www.bkjia.com/up
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
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