Detailed explanation and deployment of Redis master-slave replication and sentinel mode under Centos

Detailed explanation and deployment of Redis master-slave replication and sentinel mode under Centos This article will introduce the Redis master-slave replication and sentinel mode, and then set up the master-slave replication and sentinel modes with the help of different ports of a single host The actual production environment requires ...

Posted by Awestruck on Tue, 12 Apr 2022 08:47:16 +0300

Linux independent redundant disk array (RAID)

preface Operating environment: VMware 16pro + CentOS 8 three Special statement: space is a space. 1, RAID 1.RAID overview Combine multiple hard disk devices into a disk array with larger capacity and better securityThe data is cut into multiple sections and stored on different physical hard disk devicesUsing distributed read-write t ...

Posted by jsucupira on Mon, 11 Apr 2022 21:39:02 +0300

Simple construction and operation of Python Flask service of Docker

preface Run a simple flash project in the form of Docker container step I Write py code 1. Write a simple flash project in python. Here I use PyChram to write the project Create an app Py files are as follows: (it is worth noting that Flask needs a wave of packet inversion. Move the mouse to Flask and press Alt + Enter to complete the pa ...

Posted by y2yang on Mon, 11 Apr 2022 15:05:37 +0300

Select hosts and host groups

Usually use this user to log in ssh devops@workstation 1. Match all hosts You can specify all hosts to match through all or * and view the hosts matched by all through the following instructions: ansible all --list-hosts If an error is reported; ansible \* -i hosts --list-hosts ansible ''*' -i hosts --list-hosts 2. Match the specified ...

Posted by bufo on Sat, 09 Apr 2022 12:56:08 +0300

Detailed explanation of Linux disk management

This article is based on centos7 9 operating system complete! Disk is a storage device. All slave operating systems and applications are installed on disk. 1. Disk classification There are three types of disks commonly used in servers: SATA diskSAS diskSSD diskThese three are also used in my current work place 2. Disk capacity Disk st ...

Posted by disaster77 on Wed, 06 Apr 2022 03:36:36 +0300

Install MySQL in 3 minutes: environment preparation

OS configuration – RHEL/CentOS 1. Configure hosts /etc/hosts echo "192.168.1.71 ms01" >>/etc/hosts echo "192.168.1.72 ms02" >>/etc/hosts echo "192.168.1.73 ms03" >>/etc/hosts echo "192.168.1.74 ms04" >>/etc/hosts 2. Configure environment variables echo "export LANG=en_US" >>~.bash_profile 3. Resource a ...

Posted by Rianna on Tue, 05 Apr 2022 21:34:37 +0300

Enterprise dedicated prometheus+grafana monitoring

1, Prometheus introduction 1.1 Prometheus overview Prometheus is a monitoring system originally built on SoundCloud. Since 2012, it has become a community open source project, Has a very active community of developers and users. In order to emphasize open source and independent maintenance, Prometheus joined the cloud native Cloud Computing F ...

Posted by Asday on Mon, 04 Apr 2022 19:29:20 +0300

OMS operation and maintenance management platform is built and solutions for many pits are shared

1, Basic OMS system deployment 1.Django download address: https://www.djangoproject.com/download/ Because djang1 cannot be found 11.6. Using pip to download is very slow, Update pip to the latest version Therefore, Download 1.11.29 in Unsupported previous releases (no longer receive security updates or bug fixes) directly on the offici ...

Posted by bschaeffer on Sat, 02 Apr 2022 23:08:31 +0300

Git, those things

Git, those things 1. My experience of Git Git is the most advanced distributed version control system in the world, which is suitable for large-scale projects developed by many people. I often use git to manage my small projects. Briefly talk about the principle and characteristics of GIT! (only by knowing the operation principle and desi ...

Posted by networkthis on Sat, 02 Apr 2022 13:49:07 +0300

hadoop introduction deployment document

hadoop deployment document Introduction to hadoop What is hadoop 1) Hadoop is a distributed system infrastructure developed by the Apache foundation. 2) It mainly solves the problems of massive data storage and massive data analysis and calculation. 3) In a broad sense, Hadoop usually refers to a broader concept - Hadoop ecosystem. hadoop ...

Posted by php_joe on Fri, 01 Apr 2022 17:37:55 +0300