CEPH CSI source code analysis RBD driver controller server analysis

Kubernetes CEPH CSI analysis directory navigation CEPH CSI source code analysis (4) - RBD driver controller server analysis When the driver type specified when the CEPH CSI component is started is rbd, the services related to rbd driver will be started. Then, according to the parameter configuration of controllerserver and nodeserver, decide ...

Added by Sharif on Sun, 20 Feb 2022 01:44:50 +0200

Linux user management, file system permissions

user management Users, Group Management Commands Organize: (1 message) Linux users, group management command collation and example details_ captainyuxiaoyu's Blog - CSDN Blog sudo user authorization Privileges to execute commands given to ordinary users by administrators vim /etc/sudoers redhat ALL=(ALL) NOPASSWD: /usr/sbin/useradd Author ...

Added by akimm on Sun, 20 Feb 2022 01:41:19 +0200

Information collection and Python script writing

In the penetration test, information collection is particularly important. In the information collection stage, the penetration test team can use various methods to obtain information about the topology and system configuration of the target network. Whether the information is perfect or not will seriously affect the speed and depth of subseque ...

Added by why not on Sun, 20 Feb 2022 01:38:58 +0200

Implementation principle of ConcurrentHashMap ~java7

preface Recently, when I read some articles about ConcurrentHashMap, I always said: before jdk8, ConcurrentHashMap used segment lock to ensure concurrency security. The jdk8 abandons the segmented lock and ensures the concurrency security through the sycronized keyword + CAS. Although it probably means so, it doesn't feel thorough enough, so I ...

Added by eatc7402 on Sun, 20 Feb 2022 01:35:51 +0200

It may be a little long introduction to Spring MVC, but learning may be wealth and freedom!

preface As we all know, Java development is jokingly called spring development by the old oil subroutine apes, which shows the position of spring in Java development. If there is no spring framework, the code written by most people will be a shit. Spring MVC is a very important module among the seven modules of spring. MVC framework is a ful ...

Added by KingIsulgard on Sun, 20 Feb 2022 01:35:13 +0200

2021 big data Spark: Structured Streaming Internet of things device data analysis

catalogue Data analysis of Internet of things devices Equipment monitoring data preparation Create Topic Analog data SQL style DSL style Data analysis of Internet of things devices In the era of Internet of things, a large number of sensors are collecting and producing data involving various fields every day. It makes the Internet of t ...

Added by FUNKAM35 on Sun, 20 Feb 2022 01:16:33 +0200

File transfer of Linux command

scp The file is copied between the local host and the remote host by encryption Supplementary notes scp command is used to remotely copy files under Linux. cp is a similar command, but cp is only copied locally, not across servers, and scp transmission is encrypted. It may affect the speed slightly. When your server hard disk becomes read-on ...

Added by pcjackson06 on Sun, 20 Feb 2022 01:03:55 +0200

Element plus component library quick start tutorial

If you are Xiaobai, this set of information can help you become a big bull. If you have rich development experience, this set of information can help you break through the bottleneck 2022web full set of video tutorial front-end architecture H5 vue node applet Video + data + code + interview questions. preface Generally, when we develop sing ...

Added by neller on Sun, 20 Feb 2022 00:59:50 +0200

Linux network programming - VII

1. Preparation for web server development In order to write a web server, we need to learn how to write html pages and master some knowledge of http protocol. These two parts will be introduced next. After these two preparations, you also need to know what is the communication process of the web server? We also need to think about how to s ...

Added by 758 on Sun, 20 Feb 2022 00:39:40 +0200

Introduction to embedded MCU programming -- Architecture

Write in the front: it's purely personal opinion. If you don't agree, you're right! If it helps you, congratulations. Introduction to embedded MCU programming - Thinking Following the above, thinking is the foundation. On the basis of thinking, it will be easier to understand the structure. If you haven't read the previous article, you can ta ...

Added by mr_armageddon on Sun, 20 Feb 2022 00:35:46 +0200