), generally choose zabbix/cacti monitoring software.Selection of serversAll with stability as the premise and principle, in the case of price can be accepted by the company, you can choose a brand server like IBM and Dell, the quality is guaranteed.When server resources are tight, OpenStack virtualization (KVM) can be deployed, and virtual machines can act as test machines, beta machines, and internal deployment machines to take advantage of machine resources.(2)
With the development of China's routing industry, WAN port broadband routers are also widely used. Here we mainly introduce the role of Server Load balancer in the Development of WAN port broadband routers, the technical differences between the multi-WAN port broadband routers are not very large. The load balancing capability is the main feature of a single WAN p
Link load balancing can actually do this.
Enterprises generally lease multiple ISP links to avoid network availability risks caused by single ISP link failure and solve network access problems caused by insufficient network bandwidth. How to properly use multiple ISP links does not cause resource waste, but also improves the quality of network services. This article will focus on analyzing several methods
NAT (network address translation) simply translates an IP address into another IP address, which is typically used for conversion between unregistered internal addresses and legitimate, registered Internet IP addresses. It is suitable for resolving the Internet IP address tension, do not want to let the network outside know the internal network structure and so on. Each NAT conversion is bound to increase the cost of the NAT device, but this extra ove
used as MySQL, mail or other non-web load balancing, we often use it as a MySQL (read) load balancing;Four, with a strong monitoring server status of the page, the actual environment we combine Nagios Mail or SMS alarm, this is also I like it one of the reasons;Five, Haproxy support virtual host.
When doing a
Today, the ' large server ' model has been replaced by a large number of small servers, using a variety of load balancing techniques. This is a more feasible approach that minimizes the cost of hardware.
The advantages of ' more small servers ' outweigh the past ' large server ' patterns in two ways:
1. If the server goes down, the
Basic concepts of load balancing
Load balancing is a computer network technology used to distribute loads across multiple computers (computer clusters), network connections, CPUs, disk drives, or other resources to achieve optimal resource usage, maximize throughput, minimize response time, and avoid overloading.
scheduling strategy for you to choose from. The DNS server acts as a coarse-grained request scheduler.3. Reverse Proxy load BalancingIt works at the HTTP level, which is the application layer in the TCP seven layer structure, so load balancing based on reverse proxy is also called seven-tier load balancing.This scenar
Today, the ' big server ' model is over, replaced by a large number of small servers, using a variety of load-balancing techniques. This is a more feasible way to minimize the cost of hardware.
The advantages of ' more small servers ' over the past ' large server ' model are embodied in two aspects:
1. If the server is down, then the
determines that the transmission is based not only on the MAC address (the second Layer Bridge) or the source/destination IP address (third-tier routing), but also on the TCP/UDP (layer fourth) application port number. Layer Fourth switching functions are like virtual IP, pointing to the physical server. It transmits a variety of business compliance protocols, with HTTP, FTP, NFS, Telnet, or other protocols. These services require a complex load
Enterprises generally lease multiple ISP links to avoid network availability risks caused by single ISP link failure and solve network access problems caused by insufficient network bandwidth. How to properly use multiple ISP links does not cause resource waste, but also improves the quality of network services. This article will focus on analyzing several methods of link load balancing, and explain the imp
advantages can still be retained, and the advantages of its syntax, as well as the rapid development of efficiency, will still be a place for it.
But is it not possible to implement these large distributed systems under the Windows platform? I believe this question has been widely discussed, but at least I don't see a clearer, complete case. With these questions, I decided to upgrade my machine and build a highly scalable distributed Web site from start to finish under the Windows platform. My
In the past, when running a large Web application, it meant running a large Web server. Because your application attracts a large number of users, you will have to add more memory and processors to your server.
Today, the ' large server ' model has been replaced by a large number of small servers, using a variety of load balancing techniques. This is a more feasible approach that minimizes the
In the past, running a large Web application meant running a large Web server. Because your application attracts a large number of users, you will have to add more memory and processor to your server.
today, the ' big server ' model is over, replaced by a large number of small servers, using a variety of load balancing techniques. This is a more feasible way to minimize the
perfermance Computing) clusters,
Referred to as HPC cluster.
The cluster of computer clusters is a kind of computer system, which is connected by a loosely integrated set of computer software or hardware to work closely together to complete the meter
Count the work. In a sense, they can be seen as a computer. A single computer in a clustered system is often called a node, usually connected over a local area network.
But there are other possible ways to connect. Cluster computers are often u
As the core components of the existing network rapidly increase in traffic and data traffic, the processing capability and computing strength of the network increase accordingly, this makes it impossible for a single server device to take over. In this case, if you discard the existing device to perform a large number of hardware upgrades, this will cause a waste of existing resources, and if you face the next increase in business volume, this will lead to a high
Non-equivalent Server Load balancer based on
Principle
: Successor FD * variance> feasible successor FDTopology
650) this. width = 650; "src =" http://img1.51cto.com/attachment/201202/212008309.jpg "border =" 0 "alt =" "/>After completing the configuration on the three routers, the basic configurations are not listed here, and then the lookback 0 with the IP address 2.2.2.2 is declared on R2.
PurposeTo go to 2.2.2.2 this network segment to R3, you mus
In the past, when running a large Web application, it meant running a large Web server. Because your application attracts a large number of users, you will have to add more memory and processors to your server.
Today, the ' large server ' model has been replaced by a large number of small servers, using a variety of load balancing techniques. This is a more feasible approach that minimizes the
According to the investigation and analysis by some experts, more than 90% of the databases used by enterprises are mainly used for queries. Some enterprises have a higher proportion. That is to say, the user's operations on the database, in fact, the proportion of update operations is very small. Most of the operations are query operations. For example, in some forums, most users only view the post, instead of posting. This is an example of a typical query operation that greatly exceeds the upd
client, which greatly reduces the data size. generally, the value of gzip_comp_level does not differ much in terms of performance. Set it to 4-5. simply increasing it is meaningless, just a waste of CPU cycles.You can also reduce the file size by using some JavaScript and CSS reduction tools, but these are not very relevant to nginx, so I believe you can get more information through Google.Category: nginx tags: nginx Server Load balancer July 17, 201
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