Basic configuration and tuning policies for high-availability and high-performance computer systemsQingdao railway station Computing Center Yu Dong Liu Mei
Computer users need such a computing environment: ReliabilityThe performance must be sufficient to handle various loads in complex environments. Users place various applications in computer systems, and the ap
Opening overview
In today's mobile internet, Internet +, the era of big data, all kinds of internet sites, platform anomalies, as springing up, there is a "suddenly like a night spring breeze, thousand tree million Tree pear blossom" feeling.For the mobile internet era of the platform, the user's sense of experience is good? Is the stability of the platform good? Estimate is for all the Internet platform two big head and other elements bar, indeed, the mobile internet era, traffic is th
Reaffirm again
Although I have never found a shortage of issues related to high availability or disaster recovery, the previous issue of WebSphere reverse investors (dealing with WebSphere application Server management High Availability option) suggests that the number of these issues appears to have increased recentl
Without the idea of design, you cannot become an architect. The architect is a good piece of code, drawing a beautiful uml/prototype, wrote a technical document, more to solve the project key technology of the comprehensive talent. Architect = Front-end engineer + back-end Programmer + System Analyst + Key Technology Solutions + various technology collocation + design mode + deployment tuning + other, visible architects are generalists, and play a key role in connection management and project me
I. Concept INTRODUCTIONHA (High availability) refers to improving system and application availability by minimizing downtime due to routine maintenance operations (planning) and sudden system crashes (unplanned). It differs from the fault-tolerant technology that is considered to be uninterrupted operation. Ha system is the most effective method to prevent the fa
Keepalived, Lvs,tomcat high availability, high concurrency, high-performance application architecture
Keepalived, LVS built on the same server, two Tomcat on a tomcat
Four server versions: CentOS 6.5
Yum Install Ipvsadm-y
Keepalived:etc/keepalived/keepalived.conf
! Configuration File for KeepalivedGlobal_defs {Notifi
Springcloud high availability and springcloud availabilityPurpose
In the actual production environment, a single point of registration center is defective. When the node goes down, the microservices dependent on its services will fail, therefore, a high-availability registration center is needed to make up for this def
Tags: Jedis an instance part high Availability architecture definition important emergence SRCIn a production environment, for high concurrency architectures, we know that caching is the most important link for a lot of high concurrency. Can be implemented using a three-tier cache architecture, which is Nginx+redis+ehc
then configure/etc/keepalived. conf. You only need to change the annotation part.
4. Set gateways on two real servers respectively
Set all gateways to 192.168.10.10.
5. Configure HTTP in two realservers
[[Email protected] ~] # Yum-y install httpd[[Email protected] ~] # Cd/var/www/html/[[Email protected] HTML] # Cat index.html[[Email protected] HTML] #/etc/init. d/httpd startThe configuration of another machine is the same, and the process is omitted.
6. Run service keepalived start on
balancing algorithms usually include: polling, random, source address hashing, weighted polling, weighted random, and minimum join Refer to: 6 load Balancing algorithms4. Use caching to improve query service performanceIn the case of multi-write less, it is very suitable to use the cache to improve the performance of the query service, reduce the pressure on the database. Redis cluster is often used as a cache server, and the Redis cluseter mechanism can guarantee
Tokyo tyrant ( ttserver ) series - high availability and high reliability + nginx
[ author: Sun Li link: http://www.cnblogs.com/sunli/ Update Time: ]
previous article Tokyo tyrant ( ttserver ) series -memcache protocol
1.
Based on
Memcache
High
SeriesArticle:
Configuration of high-availability IIS server for building high-performance. Net Applications-Article 1: required knowledge of IIS
Build a high-performance. NET application configuration high-availability IIS
the same, and the process is omitted.
6,InCentOS-LVS_MASTER,Centos-LVS _Run service keepalived start on backup to start keepalived to achieve load balancing and high-availability clusters;
[Root @ CentOS-LVS_MASTER keepalived] # service keepalived start
Iv. Test
#### High availability test ####
Simulat
simple, fast, and a bit of a benefit to cultivate new Linux interests. Compile and install can be well-customized, will not need to shut down the function, reduce security risks and so on. Yum installation as long as you turn off unneeded features and compile and install the same, and the compilation of the installation process you have mastered the software installation path, and so on, there are pros and cons, there is no need to waste their mind. And I chose the time I needed, basically I wa
6, Keepalived+lvs implementation of scheduling, high availability, high-performance cluster650) this.width=650; "src=" Http://note.youdao.com/yws/res/21139/5A90D062140744BA99DD87E647440CF4 "alt=" Qq20150728172032.png "/>The role of keepalived is:detects the status of the Web server, and if a Web server freezes or fails, keepalived detects and rejects the failed W
In the face of high concurrency, large traffic, high availability, massive data, a wide range of users, network complexity of such web systems how we respond???First stage one server, no more servers.1. Separation of applications from data services put the application, database, files and other resources on a server, the face of massive users can only be collapse
Build a high-availability and high-concurrency wcf cluster using nginx, nginxwcf
In many cases, zookeeper is the preferred choice for Complex Balance Based on wcf, which can have better control granularity. However, zk is not very friendly to C # And is relatively difficult to implement. In actual situations, if
If your load mechanism is coarse-grained, nginx ca
session server cluster, the master backup synchronization, so that it achieves a better effect, the implementation can be used redies,memcached and other cache middleware.System Architecture Diagram:conclusion : Load balancing has a minimum of 2 advantages1. Multi-point deployment, solve single point of failure problem, improve the usability of the website2. Ability to improve system performance by leveraging additional hardware resourcesEvolution of large-scale website system Architecture (iii
This article to you to share is the PHP development of high-availability high-security app back-end of the study notes, the need for friends can refer to the content of the article
Source code Download Address: https://download.csdn.net/download/qq_21683643/10331534Catalogue1. Security2. Authorization Code sign algorithm3. Login Scene Access_user_token algorithm4
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