mariadb high availability

Through the popularization of the three articles, I believe everyone should have a basic understanding of IIS. Starting from this article, we will start to discuss some practical topics about IIS: how to configure IIS to ensure its performance as high as possible. Series of articles:Configuration of high-availability IIS server for building

Start OK" ;;stop) /sbin/ifconfig lo:0 down /sbin/route del $VIP >/dev/null 2>1 echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce echo "RealServer Stoped" ;;*) echo "Usage: $0 {start|stop}" exit 1esac exit 0 [[Email protected] ~] # Sh RealServer. Sh start 4. Run service keepalived star

Experiment System: CentOS6.6 _ x86_64 prerequisites: Firewall and selinux both disable the experiment Description: There are five hosts in this experiment, and IP Address Allocation is shown in topology Experiment Software: mariadb- Experiment System: CentOS 6.6 _ x86_64 prerequisites: Firewall and selinux both disable the experiment Description: There are five hosts in this experiment. IP Address Allocation is shown in the topology Experiment Softwar

Large site Architecture Features: 1. High concurrency? (large number of user visits)Solution: Split system, service, message middleware, caching, concurrencyHigh Concurrency Design principlesSystem design not only need to consider the realization of business functions, but also to ensure that the system high concurrency, high

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

proxy. Of course, some webpages that can detect IP addresses can still find your IP address.Transparent proxy means that the client does not need to know the existence of a proxy server, but it still transmits the real IP address. Do not use this if you want to hide it.As we all know, the proxy IP address is the foundation of crawler, and the high-availability IP proxy is the top priority of crawler proxy.

switching is easy to operate by mistake.In larger-scale environments, etcd/zookeeper management clusters are recommended for fast detection switching and easy node management.Highly available scenarios based on the Galera protocolGalera is a multi-master data synchronous replication mechanism provided by codership, which can realize data synchronous replication and read and write between multiple nodes, and can guarantee the high

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

consistency is more and more accepted by people, a series of mature products such as phxsql, MariaDB galera Cluster, Percona XtraDB More and more cluster are being used on a large scale. With the official MySQL Group replication ga, the use of distributed protocols to solve data consistency problem has become the mainstream direction. Expect more and more excellent solutions to be presented, MySQL high

MySQL data. The common architecture is as follows:Advantages: Multi-Master Write, no delay replication, can ensure strong data consistency Have a mature theoretical foundation Automatic failover, automatic addition, culling of nodes Disadvantages: Supports only InnoDB storage engine At least three nodes SummarizeWith the continuous improvement of data consistency, more and more methods are tried to solve the problem of distributed data consistency, such a

data loss will not occur. When a server goes down, the backup server automatically takes over. 1. High Availability of MySQL based on Galera Cluster Prerequisites: CentOS 7 Node 1 IP: 172.18.42.200 Node 2 IP: 172.18.42.201 Node 3 IP: 172.18.42.202 1. Deploy Node 1(1) install the Galera Service[Root @ node0 ~] # Yum install Mari