[NFS] installing NFS for Linux

Installation and configuration of NFS server client on Linux 1. System environment $ cat /proc/version Linux version 3.10.0-327.el7.x86_64 (mockbuild@x86-034.build.eng.bos.redhat.com) (gcc version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) ) #1 SMP Thu Oct 29 17:29:29 EDT 2015 2. NFS server setup 2.1 install and check NFS and RPC services # insta ...

Posted by Ironmann00 on Sun, 06 Mar 2022 12:06:29 +0100

Deep analysis of Java thread safety principle

Some novice or old java programmers know that accessing a shared variable under multithreading is non thread safe. The so-called non thread safe means that the modification of shared variables by thread a may not be visible to thread b. Direct example // It is suggested that you can take a screenshot of the code and read it together with the t ...

Posted by Chinese on Sun, 06 Mar 2022 12:06:25 +0100

STM32 introduction notes (02): GPIO working principle - GPIO general and AFIO multiplexing function I/O (SPL library function version)

Leading knowledge 1.STM32 introduction notes (02): SPL standard peripheral driver library (library function version) operation experiment GPIO principle STM32 model description Stm32f103zet6: 144 pin, 512K flash memory 7 sets of IO ports (GPIOA... GPIOG)16 IO ports per groupTotal: 112 IO ports STM32F103RCT6: 64 pin, 256K flash ...

Posted by Beavis2084 on Sun, 06 Mar 2022 12:00:34 +0100

Golang standard library context Context

Golang standard library context Context In the Go http package Server, each request has a corresponding goroutine to process. Request handlers usually start additional goroutines to access back-end services, such as databases and RPC services. The goroutine used to process a request usually needs to access some data specific to the request, su ...

Posted by phpian on Sun, 06 Mar 2022 11:58:24 +0100

[redis series] redis learning 7. Details of redis configuration files you don't know

Detailed explanation of Redis configuration fileCompanyWhen redis is started, it will read the configuration file redis conf1k => 1000 bytes 1kb => 1024 bytes 1m => 1000000 bytes 1mb => 1024*1024 bytes 1g => 1000000000 bytes 1gb => 1024*1024*1024 bytesUnits in redis are not case sensitive. For example, 1GB, 1GB and 1GB all mea ...

Posted by erikwebb on Sun, 06 Mar 2022 11:52:32 +0100

Python learning process problem record: Dane Xu Ming data analysis quick start (problems encountered in code compilation in 2022)

catalogue preface Question 1: Chinese display of matplotlib drawing Question 2: the X-axis time of the graph always shows 1970 1. Problem description 2. Causes of problems 3. Solutions Question 3. Difference of synthetic square wave caused by one bracket 1. Problem description 2. Causes of problems 3. Problem analysis Qu ...

Posted by Nuv on Sun, 06 Mar 2022 11:46:21 +0100

Vue responsive principle

One of Vue's most unique features is its non intrusive response system. The data model is just a normal JavaScript object. When you modify them, the view updates. When talking about the principle of Vue responsive implementation, many developers know that the key to implementation is to use object Defineproperty, but how is it implemented? Toda ...

Posted by canadian_angel on Sun, 06 Mar 2022 11:43:52 +0100

AIoT application innovation competition - smart home central control based on TencentOS Tiny

background With the continuous improvement of science and technology and living standards, smart home products are constantly entering daily life. Smart home can make home appliances smarter and make life more comfortable. Smart home is also the product of the deepening development of the Internet. The Internet connects people. After further de ...

Posted by watson100 on Sun, 06 Mar 2022 11:41:50 +0100

Use C/C + + to read and write mat file (Clion)

Use C/C + + to read and write mat file (Clion) Recently, I need to use C + + to process the data generated by matlab. I refer to some online blogs, but they all use VS. I prefer to use Clion. I also encountered some pits in the process of configuration. Please record. 1, Create project and add test code Let's not talk about creating a proje ...

Posted by rpmorrow on Sun, 06 Mar 2022 11:39:17 +0100

Data structure - red black tree

Data structure - red black tree preface Red black tree is the underlying data structure of map, set, mutilmap and mutilset containers. It is also a very important data structure. It further optimizes AVL in efficiency, because AVL structure cannot avoid a large number of rotation operations during insertion or deletion, resulting in loss of e ...

Posted by guitarist809 on Sun, 06 Mar 2022 11:35:12 +0100