kafka is a distributed message queue. With high performance, persistence, multiple copy backup, horizontal expansion capabilities. The producer writes a message to the queue, and the consumer fetch
Tag: linux
Common Linux command
common linux commands
Task Manager: top
View the specific available parameters and object format of the command
Display string or variable in terminal
Display system time an
Install Yum in Linux Environment
If the following error occurs, it means you need to reinstall yum:
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
There are no
[Linux] CP bulk copy file
[Requirements]:
There are 2 folders a, b, now you need to copy all the files (aa.py, a2.py, a3.py) in folder a to folder b (empty folder)
[Solution Method]:
The first thing that c
Linux-w Displays user information of current login systems
The Linux w command is used to display the information of the user currently logged in to the system.
Execute this command to know who is currently logged in to the system and the process the
Linux temperature – 4- file link
ln can link files, similar to windows shortcuts
ln -s zxw.txt z.lnk
Delete the original file
rm zxw.txt After the source file is deleted, as shown in the figure below, the path s
The creation and expansion of the Linux system LVM logical volume (detailed explanation, graphic
LVM introduction: LVM (Logical Volume Manager) Chinese name: Logical Volume Manager, essentially a virtual device driver, is a new addition between the block device and the physical device in the
Linux Command LVM and Disk Management
LVM and disk quotas
One, LVM logical volume management
1, LVM overview
Logical Volume Manager, logical volume management
(1) Dynamically adjust the disk capacity to improve the flexibility of disk
linux-awk-3
awk
Basic syntax
Awk –Fs’/pattern/ {action}’ input-file
(or)
Awk –Fs'{ action}’ input-file -F is the field delimiter. If not specified, spaces will be used as delimiters by default.
/patter
LVM logical volume management in Linux
1. Introduction
LVM is the abbreviation of Logical Volume Manager (Logical Volume Manager). It is a mechanism for managing disk partitions in the Linux environment. LVM is a logical layer bui