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1, Overview 1.1 cluster Cluster, also known as cluster It is composed of multiple hosts, which is external as a whole. It only provides one access entry (domain name or IP address), which is equivalent to a mainframe computer 2, Classification There are three types of target differences Load balancing clusterHigh availability clusterHi ...

1 load balancing algorithm The English name of Load Balance is Load Balance, which means to balance the load (work task) and allocate it to multiple operating units for operation, such as FTP server, Web server, enterprise core application server and other main task servers, so as to complete the work task together. Since it involves mul ...

1, Working principle of LVS-DR 1. Packet flow analysis (1) The client sends a request to the director server (load balancer), and the requested data message (the source IP is CIP and the target IP is VIP) reaches the kernel space. (2) The director server and Real Server are in the same network, and the data is transmitted through the two-lay ...

catalogue I. deploy Nginx load balancer 2, Deploy 2 Tomcat application servers 3, Dynamic and static separation configuration 4, Test effect 5, Nginx load balancing mode 6, Nginx four layer agent configuration I. deploy Nginx load balancer systemctl stop firewalld setenforce 0 yum -y install pcre-devel zlib-devel openssl-devel gcc gcc ...

1. HAProxy scheduling algorithm: HAProxy indicates the scheduling algorithm for the backend server through the fixed parameter balance, which can be configured in the listen or backend options. The scheduling algorithms of HAProxy are divided into static and dynamic scheduling algorithms, but some algorithms can be converted to each other in s ...

preface Spring Cloud Ribbon is a set of client-side load balancing tools based on Netflix Ribbon. In short, ribbon is an open source project released by Netflix. Its main function is to provide software load balancing algorithms and service calls on the client. Ribbon client component provides a series of perfect configuration items, such as ...

1, LVS   LVS (Linux Virtual Server), namely Linux virtual server, is a virtual server system, which realizes the load balancing Cluster function on unix/Linux platform. LVS is a Cluster technology, which adopts IP load balancing technology and content-based request distribution technology. The scheduler has good throughput, transfers ...

introduce Spring Cloud Ribbon is a set of client-side load balancing tools based on Netflix Ribbon. The main function is to provide the software load balancing algorithm and service call of the client. The Ribbon client component provides a series of complete configuration items, such as connection timeout, Retry, etc. Simply put, list all th ...

In the previous two articles, we learned about the SPI mechanism in RPC and dubbo. In order to further understand the whole process of RPC call, in this article, we will implement simple SPI mechanism, zookeeper registry, load balancing and other functions. I will put the link of the source code at the end of the article. If necessary, you c ...

colony Cluster overview What is a cluster A group of computers interconnected through a high-speed network and managed in a single system modeMany servers come together to provide the same service, which looks like a server to the clientRelatively high benefits in performance, reliability and flexibility can be obtained at a lower costTa ...