Programmer Think

By kaliarch Link: https://juejin.im/post/5e02fb... Background: Recently, there are some puzzles about the function of etcd in k8s application. If we study it alone, we can better understand some characteristics of k8s. 1, Overview 1.1 introduction to etcd Etcd is an open source project launched by CoreOS team in June 2013. Its goal is to bu ...

redis basic learning   redis Redis is an open source (BSD licensed) in memory data structure storage system, which can be used as database, cache and message middleware yum install redis 1.yum installation #The premise is to configure alicloud yum source and epel source #Check whether there is redis package yum list redis ...

1. Introduction Definition OpenVPN is a software package for creating virtual private network encryption channels, originally written by James Yonan.OpenVPN allows created VPNs to authenticate using public keys, electronic certificates, or user names/passwords. It makes extensive use of the SSLv3/TLSv1 protocol function library in the Ope ...

Last article This article briefly introduces mysqldump's backup and recovery of database. This article introduces another backup tool xtrabackup. In the era of InnoDB transaction engine flooding, xtrabackup can well support hot backup of database, which is very gratifying,   Xtrabackup is available in the epel source, so you can install it dir ...

shallow A kind of ove Install Apache Apache is the name of a foundation. httpd is the package we want to install. In the early days, its name was Apache. Apache official website www.apache.org wget http://mirrors.cnnic.cn/apache/httpd/httpd-2.4.29.tar.gz wget http://mirrors.cnnic.cn/apache/apr/apr-1.6.3.tar.gz wget http://mirrors.cnnic.cn ...

ceph RBD Environmental Science 192.168.126.101 ceph01 192.168.126.102 ceph02 192.168.126.103 ceph03 192.168.126.104 ceph04 192.168.126.105 ceph-admin 192.168.48.11 ceph01 192.168.48.12 ceph02 192.168.48.13 ceph03 192.168.48.14 ceph04 192.168.48.15 ceph-admin 192.168.48.56 web Create RBD Create ...

Adding custom monitors to zabbix By writing scripts to obtain various states of tcp, adding TCP status template, triggers, graphics, the whole process of customizing monitoring through scripts is realized. 1. agent-side configuration 1. Create ...

Percona XtraDB Cluster (PXC) cluster is based on Galera 2.x library, a common multi-master synchronization replication plug-in for transactional applications. It is mainly used to solve the problem of strong consistency, keep the data synchronized between nodes in real time and achieve multi-node read and write simultaneously.It improves the r ...

7.6 yum Replacement of Domestic Sources Restore the default yum source configuration of the system: [root@adai002 Packages]# cd /etc/yum.repos.d [root@adai002 yum.repos.d]# ls dvd.repo [root@adai002 yum.repos.d]# rm -f dvd.repo [root@adai002 yum.repos.d]# ls [root@adai002 yum.repos.d]# cp ../yum.repos.d.bak/* . [root@adai002 yum.repos.d]# ls ...