One of Linux load Balancing software LVS (concept article)
A brief introduction of LVSLVS is the short name of Linux virtual server, the Linux VM, a free software project initiated by Dr. Zhangwensong, and its official site is www.linuxvirtualserver.org. Now that LVS is already part of the Linux standard kernel, Before the Linux2.4 kernel, the use of LVS must be
Windows Apache does load balancing
The first time I saw this headline I was surprised that Apache can still do load balancing? It's so powerful. After a survey found that it can, and the function is not bad. This is thanks to the Mod_proxy module. Is worthy of the mighty Apache AH.
Less nonsense, the following is to explain the
software and hardware products *.
Load TestingWe have all experienced load testing during performance testing and debugging. In that environment, it means that automatic tools are used to continuously increase the load on the system. For Web applications, the load is the
There are two ways to implement the site load, one is to buy hardware to achieve, such as hardware F5 to Citrix Netscalar, these devices are hundreds of thousands of, not the average person to play, the other is to use software to achieve, such as Nginx, Squid This kind has the reverse proxy function The software, this article Nginx installs realizes the
A brief introduction of LVS
LVS is the short name of Linux virtual server, the Linux VM, a free software project initiated by Dr. Zhangwensong, and its official site is www.linuxvirtualserver.org. Now that LVS is already part of the Linux standard kernel, Before the Linux2.4 kernel, the use of LVS must be recompiled to support the LVS function module, but from the Linux2.4 kernel, has been completely built in the LVS function modules, no need to make
First, the simple introduction of load balancingLoad balancing, also known as load sharing, refers to load balancing by dynamically adjusting the load on the system, and performing the load on multiple operational nodes to reduce the impact of unbalanced
program runs on all hosts within the cluster, and Windows Load balancing distributes the workload between these servers. For other services, such as e-mail, Only one host handles the workload? For these services, Network Load Balancing allows network traffic to flow to a single host, and only move traffic to another host if the server fails?Network
load-balanced software LVS and HAProxy
For a summary of the transfer modes used by three software, see the article:
http://blog.csdn.net/wuqingaixue/article/details/46712105#
The pros and cons of three load balancer software are
sites have also adopted the LVS cluster software, so its reliability in practice has been well confirmed. There are many load balancing systems in LVS that run for a long time and have never been restarted. All these show the high stability and high reliability of LVS.3.4 Applicable environmentLVS to front-end Director server currently supports only Linux and FreeBSD systems, but supports most TCP and UDP
advantages can still be retained, and the advantages of its syntax, as well as the rapid development of efficiency, will still be a place for it.
But is it not possible to implement these large distributed systems under the Windows platform? I believe this question has been widely discussed, but at least I don't see a clearer, complete case. With these questions, I decided to upgrade my machine and build a highly scalable distributed Web site from s
OverviewIn our previous Windows platform distributed architecture practice-load balancing, we discussed the load balancing of Web sites through NLB (Network load Balancer) under the Windows platform and demonstrated its effectiven
OverviewIn our previous Windows platform distributed architecture practice-load balancing, we discussed the load balancing of Web sites through NLB (Network load Balancer) under the Windows platform and demonstrated its effectiven
OverviewIn our previous Windows platform distributed architecture practice-load balancing, we discussed the load balancing of Web sites through NLB (Network load Balancer) under the Windows platform and demonstrated its effectiven
OverviewIn our previous Windows platform distributed architecture practice-load balancing, we discussed the load balancing of Web sites through NLB (Network load Balancer) under the Windows platform and demonstrated its effectiven
addition, we will also evaluate a relatively simple website performance improvement method through WAS. The basic idea of this method is to generate static HTML pages on the server to avoid excessive database calls. Load testing is an important step in the development cycle of any Web application. If you are constructing an application that serves a large number of users, it is very important to figure out how much
Windows Azure Load Balancer defaults to 5-tuple hash: Source address, source port, destination address, destination port, protocol. That is, only session packets with exactly the same five tuples will be forwarded to the same back-end server. Obviously, for the vast majority of users with NAT Internet access, the 5-tuple does not have a session-hold function. The
In Windows, we can use the software's own loading or unloading program or add/Remove Programs in the Control Panel. Similarly, there is a powerful software-on-load tool called RPM under Linux. It can be used to establish, install, query, update, uninstall software. The tool is used under the command line. You can get h
Nginx is a lightweight Web server/reverse proxy server, more detailed interpretation of their own Baidu. At present, such as Sina, NetEase and so on are using it. First of all, my server Software environment:System: windows_server_2008_standard_enterprise_and_datacenter_with_sp2_x64Currently running Tomcat: non-installable version of Tomcat 6.0.36Just say these two key points, the problem is that the number of visits to a single tomcat has been unable
Use Nginx + Tomcat in Windows to configure Cluster load balancing and nginxtomcat
Nginx is a lightweight web server/reverse proxy server. Currently, Sina and Netease are all using it in China. Let's talk about my server software environment:
System: windows_server_2008_standard_enterprise_and_datacenter_with_sp2_x64
Currently running Tomcat: Non-installed versio
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