Redis High Availability Cluster Practice

1. Environmental Instructions redis version: Redis-5.0.8System version: Redhat6.8 Host IP redispri1 110.50.1.55 redispri2 110.50.1.56 redispri3 110.50.1.57 redisbck1 110.50.1.57 redisbck2 110.50.1.59 redisbck3 110.50.1.60 2. Build a redis highly available cluster Each node closes NetworkManager, selinux=disable # /etc/init.d ...

Posted on Mon, 18 May 2020 09:34:46 -0700 by kansaschuck

CentOS 7.4 installation configuration Zabbix 3.4.2

1, Installation environment description Two machines are installed with centos-7-x86_-minimal-1708.iso Download address: https://www.centos.org/download/ It is best to set up IP and HOSTNAME during installation The IP and HOSTNAME downloads for both machines are as follows Main 192.168.10.157 ZABBIX server From 192.168.10.1 ...

Posted on Mon, 04 May 2020 17:46:28 -0700 by larsojl

Lost hard disk space: a solution to the statistical inconsistency between du and df

Suddenly, I received an alarm email from Zabbix saying that the hard disk space is in alarm. I quickly boarded the server and checked the utilization rate of the hard disk with df. I found that the used space is indeed low, as follows: # Plus - h makes it easier to see the size of the space df -h The output results ...

Posted on Mon, 04 May 2020 11:15:08 -0700 by kylevisionace02

How many series of hosted. NET Core projects do Nginx know

Original text: How many series does Nginx know (5) hosting. NET Core project under Linux Catalog 1. Preface 2. installation 3. Profile details 4. Working principle 5. Hosting. NET Core project under Linux 6. NET Core project load balancing under Linux 7. High availability of. NET Core project nginx + preser ...

Posted on Sun, 12 Apr 2020 17:00:47 -0700 by Sware

Openstack computing host installation and configuration process II

Openstack computing host installation and configuration process 1. Environment configuration Hosts configuration   modify the / etc/hosts file and add wtcontroller, wtcompute1 and wtcompute2: 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost ...

Posted on Mon, 06 Apr 2020 08:53:20 -0700 by Toboe

Installing Docker container under Centos

First of all, it is stated that the purpose of this article is to introduce the installation of Docker-CE (community version) in centos environment. The community version is free for individual developers and small teams. Docker-EE (enterprise version) has additional costs. If you want to know about the construction of other systems, please ...

Posted on Thu, 02 Apr 2020 17:16:53 -0700 by JimStrosky

[SequoiaDB] Tech | SequoiaDB SQL instance high available load balancing practice

1 Preface   In the application program, the IP address and port number of the database connected by the application configuration are fixed. When the server of the IP address is down, it needs to manually change the IP address to switch the database server. At the same time, when the application receives thousands of concurrent http requests ...

Posted on Tue, 24 Mar 2020 09:00:20 -0700 by vomitbomb

Analysis of changing MySQL database storage directory on CentOS 7

I have summarized two articles before“ MySQL changes database data storage directory "And" Change MySQL database data store directory on Ubuntu ”, is a simple summary of relevant cases in the work. At the beginning, the experience was insufficient and the cognition was limited, so now it seems that the original blog really ...

Posted on Tue, 10 Mar 2020 20:11:15 -0700 by jburbage

linux Getting Started Series 15--vsftp Service for File Transfer

The previous series of articles essentially covered the basics of linux management, starting with this one about deploying and configuring service programs in centos7 to provide a variety of services to the outside world. In our daily work and entertainment, all kinds of resources we need are inseparable from the network and various services. W ...

Posted on Thu, 27 Feb 2020 19:04:41 -0800 by oughost

GlusterFS quick install

Preparation before installation At least three machines are needed here. All machines turn off the firewall and Selinux. All machines need two hard disks, systemctl stop firewalld systemctl disable firewalld setenforce 0 sed -i "s#SELINUX=enforcing#SELINUX=disabled#g" /etc/selinux/config In fact, ...

Posted on Wed, 19 Feb 2020 01:29:45 -0800 by ojeffery