netscaler load balancing methods

The most commonly used is F5 and Citrix NetScaler Load balancing is divided into global load balancing and local load balancing. Load

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

Load balancing is an eternal topic for a large web site. With the rapid development of hardware technology, more and more load balancing hardware devices emerge, such as F5 Big-ip, Citrix netscaler, Radware, etc., although it can solve the problem, but its high price is ofte

Load Balancing (Balance) is one of the factors that must be considered in the design of distributed system architecture.It usually means to allocate the request/data "evenly" to multiple operation units, and the key of load balancing is "uniformity". The uniformity here is not the 10÷2 = 5 we imagined, which is even. N

appropriate load balancing method for each server farm. Then again load-balancing or clustering among the multiple server farms to provide services to the outside world (i.e., as a new server farm) for optimal performance. This approach is called hybrid load balancing.This

map the server IP to the VIP address, or the server Ip:port map to Vip:port, Different mapping methods will take appropriate health checks, in port mapping, the server port and VIP port can not be the same, this process is not visible to the client, the user actually does not know that the server is doing load balancing, because they are accessing a destination

balancer in the network is divided into two types: one is carried out through hardware, common Hardware includes expensive NetScaler, F5, Radware, Array, and other commercial load balancers, and Linux-based open-source load balancing policies similar to LVS, Nginx, and HAproxy, In commercial Server

proxy server itself becomes a service bottleneck. A load-balanced address translation gateway can map an external IP address to multiple internal IP addresses and dynamically use one of the internal addresses for each TCP connection request to achieve load balancing purposes [3]. Many hardware vendors integrate this technology into their switches as a function

not respond, and the DNS cache time is longer, even if the removal of DNS server resolution does not take effect immediately, another problem load imbalance, because it does not reflect the health and performance of the individual servers, At the same time, the DNS cache causes the parsing to be on the same server. 2.3 Four/seven-layer load balancing This 47 lay

large, and finally the reverse proxy server itself becomes a service bottleneck. A load-balanced address translation gateway can map an external IP address to multiple internal IP addresses and dynamically use one of the internal addresses for each TCP connection request to achieve load balancing purposes [3]. Many hardware vendors integrate this technology int

cactiAdvantages of LVS:Good performance, close to hardware equipment network throughput and connection load capacity.LVS's Dr mode, which supports load balancing over a WAN. None of this other load balancing software is currently available.Disadvantages:More heavy. Another

per day, but only a few people are maintaining the site and ensuring scalability.PlatformApachePythonLinux (SuSe)MysqlPsyco, a dynamic Python-to-C compilerLIGHTTPD to do video viewing instead of ApacheStateSupports more than 100 million video hits per dayFounded in February 2005Reached 30 million video hits per day in March 2006Reached 100 million video hits per day in July 20062 system administrators, 2 scalable software Architects2 software development Engineers, 2 network engineers, 1 DBAsHa

the final reverse proxy server itself becomes a bottleneck for the service. An address translation gateway that supports load balancing can map an external IP address to multiple internal IP addresses, dynamically using one of the internal addresses for each TCP connection request, to achieve load balancing purposes

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 of OSI reference models have corresponding Server Load balancer policies. =^The advantages and disa

the final reverse proxy server itself becomes a bottleneck for the service. An address translation gateway that supports load balancing can map an external IP address to multiple internal IP addresses, dynamically using one of the internal addresses for each TCP connection request, to achieve load balancing purposes

Four common methods for server load balancing in enterprisesIn order to improve the performance and workload of the server, enterprises usually use the technology of DNS server, network address translation and so on to realize multi-server load balancing, especially the Inte

, sizes, and services provided in multiple server farms, it is possible to consider the most appropriate load balancing method for each server farm. Then again load-balancing or clustering among the multiple server farms to provide services to the outside world (i.e., as a new server farm) for optimal performance. This

Summary : For a large web site, load Balancing is an eternal topic. With the rapid development of hardware technology, more and more load balancing hardware devices emerge, such as F5 big-IP, Citrix NetScaler, Radware and so on, although can solve the problem, but its high p

For a large web site, load Balancing is an eternal topic. With the rapid development of hardware technology, more and more load balancing hardware devices emerge, such as F5 big-IP, Citrix NetScaler, Radware and so on, although can solve the problem, but its high price is of

to achieve denial of Service (DoS ) for the purpose. It can also be seen from the technical principle that these SYN attacks are forwarded to the backend server in the four-layer mode, whereas in the seven-tier mode these SYN attacks are naturally cut off on the load-balanced device without affecting the normal operation of the backend servers. In addition, the load Balancer device can set up various strat