Not long ago I was in charge of a well-known national manufacturing group's load balancing project. I was deeply touched by the project's application of gslb in a specific environment and learned a lot of related Load Balancing knowledge. Today, let's calm down and think about how to learn a lot through the project. du
request is sent. The f5. ltm series is widely used.
F5-BIG-LTM-3600-4G-R
3.Load Balancing for Wan
Server Load balancer is mainly applied to some large websites, and some people call it Remote Server Load balancer. for example, we have two Web servers, one at the Beijing I
Load Balancing problems in multi-core programmingAuthor: Zhou weiming related article links: Lock competition in multi-core programming several difficulties of multi-core programming and their countermeasures (problem 1) OpenMP parallel programming (2) OpenMP parallel programming (1) fast sorting efficiency on dual-core CPU the lock competition problem in multi-c
Load BalancingMainstream open source software: LVS, keepalived, Haproxy, Nginx and so on;OSI Layer: LVS (4), Nginx (7), Haproxy (4, 7);The Keepalived load balancing function is actually the LVSLVS Load balancer can distribute other ports than 80, such as MySQL, while Nginx only supports HTTP, https, mail;LVS Introducti
load balancing and fault automatic troubleshooting for heterogeneous firewalls.Server load BalancingThis is the main feature of F5, F5 can be configured to configure Virtual server for all external servers to implement load balancing, health checks, reply-to-hold, etc.Highl
concurrency has been difficult, hardware load balancing can support
(3) Stability: Commercial hardware load balancing, after a good rigorous testing, from a large-scale use, in the stability of high;
(4) Security Protection: Hardware equalization equipment In addition to load
can set the full Internet name of the cluster and determine its operating mode. A little explanation is needed here:
3.6.1 Unicast modeRefers to the host nodes to point to the same virtual MAC address, in this case, communication between the nodes can not be implemented.
3.6.2 multicast modemeans that each host node retains the original MAC address, in addition to the special for NLB communication MAC address, so that the normal communication between the nodes. However, not all routers or swi
Tags: database dual load balanced read and write separation and dual live clusterDual load balanced read and write separation and dual live cluster---database performance and disaster-tolerant integration solutionsDescription1. First loa
, different WAN network segments) load balancing, the principle of the same LVS-DR;
Source: http://www.cnblogs.com/luminji/The copyright of this article is shared by the author and the blog. You are welcome to repost this article, but you must keep this statement without the author's consent andArticleThe original text connection is displayed at an obvious p
here:3.6.1 Unicast modeRefers to the host node to the same virtual MAC address, in which case communication between the nodes is not possible.3.6.2 multicast modemeans that each host node retains its original MAC address, plus the communication MAC address that is dedicated to NLB, so that communication between nodes can be achieved normally. However, not all routers or switches support multicast mode and need to be handled with care.3.6.3 IGMP multicast modeBased on the multicast mode feature,
balancing is achieved, because even though there are gaps in the execution time of the tasks allocated on each CPU, the increase in CPU cores always causes the total execution time to decrease, increasing the acceleration factor with the increase in CPU count.
The difficulty with load balancing is that the number of parallel execution blocks in a program can b
This paper applies to TL-ER6120 V1.0, TL-ER5120 V1.0, TL-ER5520G V1.0, TL-R483 V3.0, TL-R478 + V5.0, TL-WVR300 V1.0)Gamers of online games know that using the telecom line to go to the Netcom game server will be a "card" (high latency), and vice versa, using the Netcom line to go to the telecom game server will also be "card ", the reason is the access bottleneck between China Telecom and China Netcom. To solve this problem, you can select a multi-
With the development of information construction in various industries, people put forward higher requirements for the processing ability and high availability of the network server. Especially in highly information-based enterprises, the key network services have become an important part of enterprise generation process, interruption of service means the interruption of production and the loss of opportunity.
Load
Window| Strategy | With the development of information construction in various industries, people put forward higher requirements for the processing ability and high availability of the network server. Especially in highly information-based enterprises, the key network services have become an important part of enterprise generation process, interruption of service means the interruption of production and the loss of opportunity.
Load
(This article applies to TL-ER6120 V1.0, TL-ER5120 V1.0, TL-ER5520G V1.0, TL-R483 V3.0, TL-R478 + V5.0, TL-WVR300 V1.0)Multi-WAN port routers can serve as load balancing and line backup, and can expand bandwidth to improve network performance. More and more Internet cafes and enterprises choose multi-WAN port routers a
help you provide uninterrupted services for key business programs. You can increase the number of Server Load balancer instances based on the increase in network traffic.
4. network load balancing can be achieved on normal computers.
Ii. Process Planning
Environment Structure
Two servers, with a system of 2003, are all single NICs. Some say
execution time allocated on each CPU, however, with the increase in the number of CPU cores, the total execution time is reduced, so that the acceleration coefficient increases with the increase in the number of CPU cores.The difficulty of Load Balancing lies in that many parallel execution blocks in the program are divided by programmers. Of course, the number of CPU cores is small, such as
How to use pfSense for load balancing for your web services
Note: pfSense has two types of load balancing: one is to set multiple WAN for dual-line load
;(4) Security Protection: Hardware equalization equipment In addition to load balancing function, but also has a firewall, anti-DDoS attacks and other security functions;(5) Maintenance angle: Provide a good maintenance management interface, after-sales service and technical support;(6) Local tyrants company: F5 Big Ip Price: 15w~55w range; A10 Price: 55w-100w;Disadvantages(1) The price is expensive;(2) Poo
differences between nodes; if a balance is made on the WAN, the response time is of practical significance for the user to select the server nearby. In addition, the more scattered the cluster topology, the more effective the method can be. This method is the main method used for advanced Balancing Based on topology redirection.
3.6 encryption Law
Weighted methods can only be used with other methods, which
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