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1. LVS+Keepalived Highly Available Clusters Keepalived is designed to build highly available LVS load balancing clusters that can call ipvsadm tools to create virtual servers and manage server pools rather than just as a two-machine hot standby.Building LVS clusters with Keepalived is easier and easier to use. The main advantages are: hot stan ...

Reference blog: Docker CE image source Reference blog: docker start exception driver not supported     1. description Before you deploy docker service, you install the latest version of docker and use docker swarm to deploy big data components. However, in a recent deployment, docker 18.06.1 was found. When using docker swarm to deploy big data ...

After the open-source cross platform development framework Weex, Alibaba once again announced another major open-source project AliSQL. The performance of this version is about 70% better than that of community mysql Alibaba mysql git address git address: https://github.com/alibaba/AliSQL.git0. Check whether there is mysql resid ...

I. build lvs cluster of DR mode Environment: DS: 192.168.4.53 VIP: 192.168.4.100 RS: 192.168.4.51 192.168.4.52 1. Establish three experimental machines and configure ip and yum warehouses 2. Configure VIP on DR [root@53 ~]#cp /etc/sysconfig/network-scripts/ifcfg-eth0 {,:0} [root@53 ~]#vim /etc/sysconfig/network-scripts/ifcfg-e ...

1. Basic knowledge of Keepalived dual-machine warm-up Official keepalived website: www.keepalived.org/ Ke keepalived can also be used as a hot standby software in non-LVS environments. 1. Keepalived role Kekeepalived was originally designed as a powerful assistive tool for LVS, primarily to provide failover and health check functions - to dete ...

Common Web Cluster Schedulers At present, the common Web cluster scheduler is divided into software and hardware. Software usually uses open source LVS, Haproxy, Nginx. Hardware usually uses F5 more. Many people also use some domestic products, such as pike, green league, and so on. Haproxy application analysis LVS has a strong anti-load capab ...

1. Download MySQL 5.6.36 compile free installation package and upload it to / usr/local/src directory (you can also use wget command to download it directly to this directory) Download address https://yunpan.360.cn/surl_ymCGfFYt2Ya 2. Decompression [root@JSH-01 src]# tar zxvf mysql-5.6.36-linux-glibc2.5-x86_64.tar.gz 3. Move the extracted file ...

Environmental installation Foreplay Basic knowledge needed: Network configuration: Reference resources Share path: Reference resources Required software & Image VirtualBox: the best free virtual machine software The download address is as follows (install the software suitable for your own operating system): https://www.virtualbox.org/w ...

1.firewalld sharing Internet 1. Server operation (server with external network) 1. Turn on the firewall and join the startup [root@zeq ~]# systemctl start firewalld [root@zeq ~]# systemctl enable firewalld 2. Remove the rule that the default owner can access ssh [root@zeq ~]# firewall-cmd --remove-service=ssh --permanent 3. Add only allow 10.0. ...

For the working principle and overview of LVS load balancing, please visit: LVS load balancing cluster of Centos 7 For detailed configuration of load balancing cluster in address translation (NAT) mode, please visit: Building load balancing cluster based on address translation (LVS-NAT) mode I. start to configure DR mode LVS preparation:Four C ...