Programming VIP

1, keepalive Foundation 1.1 VRRP Technology vrrp related terms Virtual Router: virtual router Virtual router ID: VRID(0-255), which uniquely identifies the virtual router VIP: Virtual IP VMAC: Virutal MAC (00-00-5e-00-01-VRID) Physical router: Master: master equipment backup: standby device Priority: priority 1.2 VRRP related t ...

catalogue           1. MySQL read-write separation and master-slave replication principle 2. Why do we do read-write separation 3. When should I separate reading from writing 4. Master-slave replication and read-write separation 5. Replication types supported by mysql 6. Working process of master-slave replication ...

Tencent cloud Elasticsearch Service product provides a fully managed cloud service. Customers can create clusters with one click on Tencent cloud console, easily manage clusters, and highly flexible elastic configuration change mode. Therefore, with Tencent cloud ES, you can quickly deploy and expand your cluster on demand, simplify compl ...

1. The Linux kernel implements the creation of namespace 1.1 ip netns command You can complete various operations on the Network Namespace with the help of the ip netns command. The ip netns command comes from the iproute installation package. Generally, the system will install it by default. If not, please install it yourself. Note: sudo ...

The purpose of this article is to make readers have a concrete understanding of namespace and cgroup. Of course, due to my limited knowledge of Linux, I can't go deep. "Container is an execution environment that shares the kernel with the host system but is isolated from other process resources in the operating system", which is th ...

epoll related system calls #include <sys/epoll.h> int epoll_create(int size); epoll_create creates an epoll model and returns a file descriptor pointing to the epoll model.Parameter is deprecated and reserved for compatibility. Fill in at will.The file descriptor is returned successfully, and - 1 is returned for failure. int e ...

File system and log analysis summary inode and block Hard link and soft link Recover accidentally deleted files Analysis log file inode and block overview File data includes meta information and actual dataFiles are stored on the hard disk. The minimum storage unit of the hard disk is "sector". Each sector stores 512 bytesBlock ...

Introduction:   This article mainly explains how to install and package Linux Docker images. For image download, domain name resolution and time synchronization, please click   Alibaba open source mirror station 1, Build Docker environment 1. Installation under linux environment Install / upgrade your Docker client It is recomm ...

preface Harbor is an open source enterprise Docker Registry project of VMware 1.Harbor's advantages 1. Role based control: there are administrators and ordinary users. Ordinary users can be empowered. For example, they can only upload and download, and can be operated and managed according to the project 2. Image based replication policy ...

preface Recently, in the communication with fans, it was said that the white whoring server has not been used yet. Here I provide a way to use it: She inspired me by the concept of pseudo distributed Hadoop deployment. Because my private work often needs to use Hadoop cluster, local startup has been criticized for slow startup speed, t ...