postgresql load balancing

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

The company last year on the F5, easy to use is good, but the cost is too high, so recently has been studying the soft load balancing this together, it happened early this year Google Open source seesaw, let oneself can bypass many detours. This is a summary of the load balancing policies that you learned before. -sunf

The size of the internet increases by one times every 100 days, and customers want to get 7 days and 24 hours of uninterrupted availability and faster system response times, rather than repeatedly seeing a site "ServerToo Busy "and frequent system failures. With the increase of traffic volume and the rapid growth of traffic volume and data flow, the processing capacity and calculation intensity of the network are increased, which makes the single equipment unable to bear. In this case, if you th

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

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 REDIRECT Load BalancingThe HTTP redirect server is a normal application server whose only function is to compute a real Web server address based on the user's HTTP request and write the Web server address to the HTTP redirect Response (location header)The status code is 302, which is returned to the user's browser. Both the load server and the Web server are the IP of the public network.This kind of

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

XX Telecom used a single load balancing, 2 VPDN routers to do load balancing, its topology is as follows: Load balancing equipment divided into 2 network segments, deployed in a serial connection, the top 2 7610 routers, the ne

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

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

thousands of IOPS capacity, the single-machine IO capability has exceeded the traditional disk storage. However, what has been bothering us is how to solve the high availability of Oracle databases in a shared-free storage environment? Our team has designed a framework that provides simple, reliable, and highly available functionality.While in Oracle's position it is always advisable for customers to be better able to plan their own applications, when there are other

First, HAProxyHardware-based load balancing devices: F5,BIG-IP, etc.Software-based load balancing products: Haproxy,lvs,nginx, etc.In the software load balancing product, it is divided into system-based soft

DNSServerFunction Set-dnsserverstubzone DNSServerFunction set-dnsserverzoneaging DNSServerFunction set-dnsserverzonedelegation DNSServerFunction Show-dnsservercache DNSServerFunction Show-dnsserverkeystorageprovider DNSServerFunction start-dnsserverscavenging DNSServerFunction Start-dnsserverzonetransfer DNSServerFunction Step-dnsserversigningkeyrollover DNSServerFunction Suspend-dnsserverzone DNSServerFunction Sync-dnsserverzone DNSServerFunction Test-dnsserver DNSServerFunction test-dnsserver

Citrix NetScaler Load Balancing algorithmhttp://blog.51cto.com/caojin/1926308As we all know, Citrix NetScaler, which delivers products as a new generation of applications, has the industry's leading data control, application delivery capabilities, but as one of the fundamental content of ADC capabilities, it is not possible to adapt to so many scenarios without a robust, diversified equalization algorithm I

The advantages of Nginx:Good performance, can load more than 10,000 of the concurrency.Many functions, in addition to load balancing, can be used as a Web server, but also through the GEO module to achieve traffic distribution.Community active, third-party patches and modules manySupport for Gzip ProxyDisadvantages:Session hold is not supported.The health check f

1 Load Balancer Product introductionHardware-based load balancing devices such as F5,BIG-IP,Software-based load balancer product Haproxy,lvs,nginxIn these software products, it is divided into the implementation of soft load based on operating system and the implementation o

Original: Intro to Load balancing for developers–the algorithmsReprint: http://blog.gesha.net/archives/205/Posted on Tuesday, March, 11:02 PM Random: This load balancing method randomly distributes load across the servers available, picking one via random number Gen

Today, we are going to introduce NLB, Network Load BalancingNetwork Load Balancing, referred to as NLB, allows you to propagate incoming requests to up to 32 servers, which means you can use up to 32 servers to share external network request services. Network Load Balancing