external load balancer

Original English version, Chinese versionTony TangTranslation Arrangement In the first part, I briefly described the various factors that need to be taken into account during the design of a large J2EE system with upgrading and high reliability. This article discusses Tomcat's support for cluster, Server Load balancer, fault tolerance, session replication, and other capabilities. In this section, we will se

Server Load balancer (SLB) is a load balancing service that distributes traffic among multiple ECs instances. SLB can expand the external service capability of the application system through traffic distribution, and improve the availability of the application system by eliminating spof. (In connection with CDN, CDN us

Reverse proxy Load Balancer ApacheOne, reverse proxy1.1 Introduction Reaction AgentThe reverse proxy method refers to a proxy server that accepts connection requests on the Internet, then forwards the request to a server on the internal network and returns the results from the server to the client requesting the connection on the Internet, Reverse. At this point the proxy server appears as a reverse proxy s

established 192.168.10.176:53559 192.168.98.77:2200 192.168.98.117:2200TCP 14:56 established 192.168.10.176:53561 192.168.98.77:2200 192.168.98.117:2200TCP 14:56 established 192.168.10.176:53560 192.168.98.77:2200 192.168.98.117:2200 6 Appendix: Configuration Notes 6.1 Host planning instructionsIn this example, 4 hosts are used in the plan, in fact, the director server and real server can be the same host. It is important to note that Director server: The real server in which master

PS: nginx/LVS/haproxy is currently the most widely used three load balancing software. I have implemented these software in multiple projects. I have referenced some materials and combined some of my experience in using it, to sum up. Generally, Server Load balancer uses different technologies at different stages as the website scale increases. Specific Applica

devices, buffer servers, and Web servers. How to organically combine these technical devices is a key issue that directly affects network performance. Many vswitches now provide the layer-4 switching function, which 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. Some protocols supp

1. Proxy and reverse proxy server: connection requests from the proxy internal network to the Internet. External access requests to the internal network are not supported. Reverse Proxy Server: acts as a proxy for hosts on the external network to access the internal network. Www.2cto. com2. common WEB load balancing methods (1) manually select... 1. Proxy and rev

) The remote system (that is, server) uses a socket buffer size of 229376 bytes2) The Local system (that is, client) uses a socket size of 65507 bytes to send buffers3) The test takes 120 seconds to experience4) Throughput test result is 961 mbits/sec1) The remote system (that is, server) uses a socket buffer size of 87380 bytes2) The Local system (that is, client) uses a socket size of 16384 bytes to send buffers3) The test takes 120 seconds to experience4) Throughput test result is 941 mbits/s

log cannot be written to the problem that eventually causes the entire application to crash.3. Logging to logging server you can use a logging software, such as a syslog, to write all the logs to a central server. Although this method requires more configuration, he also provides the most robust solution. PHP Load Balancer Instance If you want to use load balanc

client's connection to the serverIP tunneling technology greatly improves the director's scheduling ability, but also greatly improves the maximum number of nodes the system can hold, can be more than 100 nodesReal server can run on any LAN or WAN, which means allowing geographic distribution, which is important in disaster recovery. The server must have an official IP address to communicate directly with the clientAnd all servers must support the IP tunneling protocol.3. Direct Routing (direct

Nginx/lvs/haproxy Load Balancer software pros and consHttp://www.ha97.com/5646.htmlPs:nginx/lvs/haproxy is currently the most widely used three load balancing software, I have been implemented in a number of projects, reference to some information, combined with some of their own experience, summed up.The general use of load