multi wan load balancing

ObjectiveNothing recently, like to summarize and learn something! A few days ago to write a session sharing, then why do we need session sharing? Because our applications are distributed across multiple servers, in order to properly allocate users ' requests, we need to use load balancing technology (the request/data is "evenly distributed" across multiple operational units).How to achieve

disadvantage of low reliability. 2, load distribution is not uniform DNS load balancing uses a simple polling algorithm, can not distinguish between server differences, can not reflect the current running state of the server, can not be a better performance of the server multi-allocation requests, and even the custome

Http://www.linuxeden.com/html/solution/20011219/20491.html When talking about Server Load balancer, you must first start with the cluster. A cluster is a group of computers connected together. From the outside, it is a system, each node can be a computer composed of different operating systems or different hardware. For example, a cluster that provides Web Services is a large Web server. However, cluster nodes can also provide services separately. Th

better, and there is no need to split the network to receive soft interruptions. It is based on the following facts:Fact 1: If the NIC is very high-end, it must support the Hardware Multi-queue feature and multi-interrupt vector. In this case, you can directly bind the interruption of a queue to a CPU core without the need for soft interruption to resend the skb.Fact 2: when the network card is very low, i

access to a particular database, and then we can take an effective equalization strategy based on the current load of the database to adjust each connection to which database.2. Realize data synchronization of multi-databaseFor load balancing, the most important thing is that all server data is synchronized in real ti

Technology mainly involved '; IP load Balancing: Is the most efficient in the implementation of load balancing technology, including three technologies, Vs/nat Vs/yun, VS/DR including Nat a group of servers to constitute a high-performance, highly available virtual server, the problem exists, network services asymmetri

Competition is the product of today's society, so there is competition everywhere in the online world. In the world of Server Load balancer, nginx and LVS are comparable. As an open-source product, what do they have? This article will give you a detailed comparison of the two. After the discussion, let's see which one is what you need.Comparison and Analysis of nginx load

network nginx through the upstream function, wheel Xun, IP, URL multi-mode distribution to the intranet more than Nginx. But the public network nginx if down machine, intranet whole paragraph.3, a pair of public network Nginx plus three public network IP, through the keepalive to achieve high availability, and then upstream to the intranet.4, a hardware balance server in the front-end, and then through the hardware equalization to the content of othe

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 any patches to the kernel, you can directly

Using Web Sphere Edge Server to build Load Balancing for cold rolling Systems A user's ERP system has been running for eight years. The Cold Rolling Workshop system has been running for nearly five years. Its core business system is the cold rolling Data Summary Query System, which is built based on the WAS, DB2, and Power minicomputer environment, stable Operation till now. Since the cold rolling query fun

Referring to the distribution request, I believe most people will first think of Nginx,nginx as a multi-functional server, not only provides the reverse proxy to hide the host IP capabilities, but also has a simple cache acceleration function. Of course, the most powerful function of Nginx is to distribute the request, not only provide a hash, consistent hash, load bala