rac load balancing

Comparison of haproxy lvs nginx Load Balancing For the software that implements load balancing, let's take a look at it in detail. In terms of performance and stability, LVS is the best, basically reaching 60% of the performance of F5 hardware equipment, and other 10% are a little difficult. However, the configuration

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 often prohibitive, So

Source: Network Collection In general, load balancing is the client's request to the backend of the various real servers to achieve load balancing purposes. There is another way is to use two servers, one as the primary server (master), the other as a hot Standby, the request is all to the primary server, when the pr

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 effectiveness through stress testing, which can be said

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 effectiveness through stress testing, which can be said

1: HTTP redirection The so-called HTTP redirection is to identify the new URL by modifying the location in the HTTP Response Header, and then return it to the client, so that the client can make a new request based on the URL identified by the location. This is the simplest and most lightweight Load Balancing implementation solution. We can use Asp.net to implement it like this. For example, in the main

From: http://hi.baidu.com/_kouu/item/479891211a84e3c9a5275ad9 In an SMP (symmetric multi-processor) Environment, each CPU corresponds to a run_queue (executable Queue ). If a process is in the task_running state (executable State), it will be added to one of the run_queue (and will only be added to one run_queue at the same time ), so that the scheduler can schedule it to run on the CPU corresponding to run_queue.A cpu corresponds to a run_queue design, which has the following advantages:1. A pr

system expansion capability. More than two servers to work together must involve load balancing problem, the current commonly used load balancing technology are: NAT load balancing, reverse proxy

absrtact : For a large web site, load Balancing is the 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, etc., although it can solve the problem, but its high price is often prohibitive, So

Disclaimer: This article is reproduced.When a server (including Web servers, FTP servers, or streaming media servers, etc.) is put into the network, as the number of clients increases, people often need servers that are more powerful and processing faster. To solve this problem, it is obviously not a good idea to replace the original server with a more powerful, faster server. But if you can add a new server to the processing power of the original server instead of replacing it, this scheme is u

three types of LVS load Balancing modesIn the Scheduler implementation technology, IP load Balancing technology is the most efficient, IP virtual Server Software (IPVS) is implemented in the Linux kernel?LVS Load Balancing Mode---

AJP protocol stack. It is developped in httpd-2.1and integrated in it. We have also developed a new proxy_balancerModule for load Balancing HTTP and AJP protocol stacks. JK'll is fully supported for all other Web servers.The next JK release are planned for the ' end of November.Lots of code from JK2 has been ported to JK 2.tomcat Cluster Mode:A.deltamanager--The way it is now used: internal machine clust

To improve server performance and workload, enterprises usually use DNS servers, network address translation, and other technologies to achieve multi-server load balancing, many of them use several servers to achieve Load Balancing for server access. Currently, the so-called "Server

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 effectiveness through stress testing, which can be said

Application Load Balancing LVS (I): Basic Concepts and three modes Directory:1. LVS Introduction2. How LVS-ipvs works2.1 VS/NAT Mode2.2 VS/TUN Mode2.3 VS/DR Mode2.4 Comparison of Three lvs-ipvs Modes3. ARP problems in VS/TUN and VS/DR Modes4. LVS Load Balancing Scheduling Algorithm In website architecture, Server