postgresql load balancing

I. The concept of clustering and load balancing (i) the concept of clusters A cluster (Cluster) is a loosely coupled collection of compute nodes consisting of two or more node machines (servers), providing a single customer view of network services or applications (including databases, Web services, and file services), while providing a fault recovery capability close to a fault-tolerant machine. The clus

Load balancing is composed of multiple servers in a symmetrical way of a server set, each server has the equivalent status, can be provided to the external service alone without the assistance of other servers. Through some load-sharing technology, the externally sent requests are evenly distributed to one of the servers in the symmetric structure, and the server

Abstract: This article discusses the server load balancer technology and load allocation strategies used by distributed network servers, and implements the server load balancer Gateway on FreeBSD based on network address translation, it is applied to our Internet server and distributes the load to multiple servers to s

SummaryThis article mainly discusses the basic balancing algorithms and dynamic load balancing mechanisms in the network load balancing cluster system. Based on LVS, the poll algorithm is used to implement the dynamic negative feedback mechanism of the cluster. A basic dynam

Abstract: This article discusses the Server Load balancer technology and load allocation strategies used by distributed network servers, and implements the Server Load balancer gateway on FreeBSD Based on Network Address Translation, it is applied to our internet server and distributes the load to multiple servers to s

Abstract: This article discusses the Server Load balancer technology and load allocation strategies used by distributed network servers, and implements the Server Load balancer gateway on FreeBSD Based on Network Address Translation, it is applied to our Internet server and distributes the load to multiple servers to s

With the decline in computer hardware prices and the development of computer network topology, distributed computer systems provide users with a rich set of resources. When studying distributed systems, people have noticed the following problem: in a network-Connected Multi-computer environment, some computers have heavy load at a certain time, the load on other computers is relatively light.

The difference between four and seven layers of load balancing four layersThe so-called four layer is the fourth layer in the ISO reference model. Four-layer load balancing is also called four-layer switch, it is mainly through the analysis of IP layer and TCP/UDP layer of traffic implementation based on IP plus port

Load BalancerIt can be a dedicated device or an application that runs on a common server. Distribute requests to servers that have the same content or provide the same services. Special purpose devices are generally only Ethernet interfaces, which can be said to be a multi-layer switch. The load balancer is typically assigned a virtual IP address, and all requests from the client are done for the virtual IP

What is load balancing? Load balancing is composed of multiple servers in a symmetrical way of a server set, each server has the equivalent status, can be provided to the external service alone without the assistance of other servers. Through some load-sharing technology, t

Network Load Balancing Principle and algorithm [Winmag]Author: Slhhacker1. Network Load BalancingGenerally, service nodes in a cluster can provide such information as processor load, application system load, active users, available network protocol caches, and other resource

Several implementation ways of Web load balancingSummary:Load Balancing (Balance) is an application of cluster technology (Cluster). Load balancing can spread the work tasks across multiple processing units, increasing the concurrency processing power. The most common application for

A brief introduction of load Balancing Load balancing is also called load sharing, it refers to load balancing means that by dynamically adjusting the

device in front of the cluster to achieve traffic distribution.Load Balancing (Balance), which means that load (work tasks, access requests) are balanced and distributed across multiple operating units (servers, components) for execution. is the ultimate solution for high-performance, single-point-of-failure (high availability), scalability (horizontal scaling).This article is the first article on