ansible defines variable mode and [multi-level] variable reference, and details of register
Add user account
1. Login account used by operation and maintenance personnel;
2. All businesses are placed in the "home directory of yun users" under / app / to avoid misplacement of business data;
3. This user is ...
Posted on Sun, 12 Apr 2020 07:16:58 -0400 by rami
This is the fourth article in the Cgroup series
Getting started with Linux Cgroup: basic concepts
Getting started with Linux Cgroup: CPU
Getting started with Linux Cgroup: memory
adopt Last article We learned how to view the current cgroup information, how to dynamically set cgroup by operating the / sys/fs/cgroup directory, and how to set CP ...
Posted on Fri, 03 Apr 2020 10:30:07 -0400 by burge124
We know that relational database tables are better suited for flat lists than for hierarchical data with parent-child relationships that can be directly managed like XML.
First, define the hierarchy we are discussing, which is a set of data where each entry can have only one parent and zero or more children (the only exception is the ...
Posted on Tue, 17 Dec 2019 21:15:50 -0500 by Michael Lasky
yum clean all # Clear the original yum cache
yum install [Software name] # Installation software
yum remove [Software name] # Uninstall software
yum repolist # List warehouse information
yum list [Software name] # V ...
Posted on Fri, 13 Dec 2019 13:09:55 -0500 by contex
There are two types of linux partitions I contact: one is using fdisk partition, and the other is parted partition. The former is for MBR mode partition, and the latter is for GPT mode partition
Fdisk - L ----- > view disk informationFdisk / dev / SDC -- > select the disk to operate (eg:/dev/sdc)
a toggle a bootable fla ...
Posted on Tue, 03 Dec 2019 21:12:01 -0500 by chord
I. construction of DR mode
1. Change yum source
name=Red Hat Enterprise Linux $releasever - $basearch - Source
Posted on Mon, 25 Nov 2019 15:45:14 -0500 by barbs75
This paper takes ambari-188.8.131.52, HDP-184.108.40.206, HDP-UTILS-220.127.116.11 and HDP-GPL-18.104.22.168 as examples to build ambari cluster.
I. download the corresponding version of the image package
wget http://public-repo-1.hortonworks.com/ambari/centos ...
Posted on Thu, 21 Nov 2019 10:17:11 -0500 by JasonTC
slabtop displays detailed kernel strip cache information in real time. It displays a list of top-level caches sorted by one of the listed sort criteria. It also displays a statistics header filled with slab layer information.
The application scope of this command: RedHat, RHEL, Ubuntu, CentOS, Fedora, SUSE, openSUSE.
Posted on Thu, 14 Nov 2019 15:29:46 -0500 by studgate
1. Install virtual machine
2. Set the basic configuration of virtual machine
(1) delete files
Because the mac address does not match, if the file is not deleted, an error will be reported when restarting the network.
rm -f 70-persistent-net.rules
(2) set ip
cd /etc/sysconfig/netw ...
Posted on Sat, 19 Oct 2019 17:33:48 -0400 by darklight
This article changes from Linux China
This guide describes how to find the Linux distribution name, version, and kernel details. If your Linux system has a GUI interface, you can easily find this information from the system settings. But in command-line mode, it's hard for beginners to find these detail ...
Posted on Wed, 02 Oct 2019 17:40:21 -0400 by fusioneko