The third day of learning Vue.js -- dynamic binding style and calculation properties
The third day of learning Vue.js -- dynamic binding style and calculation properties
Today is the Lantern Festival. First of all, I wish everyone a happy Lantern Festival. I also wish the medical staff on the front line a happy festival. I hope the epidemic will pass soon. Come on
Following the dynami ...
Posted by eelmitchell on Sat, 08 Feb 2020 03:54:08 -0800
A single device completes the construction of master-slave mysql quickly based on the data volume of 63G
1, Description of demonstration project:
A single physical machine uses xtrabackup to back up 63G mysql data online to create a new slave database.The purpose of the demonstration is to record the test database data of 63G used on a single physical server, and then quickly create a slave database on the local machine, about how long it will ta ...
Posted by xjake88x on Sat, 08 Feb 2020 03:23:55 -0800
System Verilog builds APB ﹣ I2C IP hierarchical verification platform
I. Preface
Recently, the epidemic is serious. As a social animal, I can only continue to study technology at home. I wrote a blog about building a FIFO verification platform before, using the OOP feature of SV to preliminarily verify FIFO, but there are many shortcomings, such as the structure is not standardized, the verification component cla ...
Posted by PupChow on Fri, 07 Feb 2020 09:10:51 -0800
K8S - ETCD deployment
Role assignment:
Environmental deployment
All virtual machines have turned off the firewall and selinux core protection functions
Practical operation
Build working directory to store binary software package
[root@master ~]# cd /
[root@master /]# mkdir k8s
Install ETCD database (three copy mechanism)master (download the ca Certificate creatio ...
Posted by coolphpdude on Fri, 07 Feb 2020 07:05:24 -0800
Construction of pixhawk development environment under Ubuntu 16.04
1 Introduction
I am a px4 Xiaobai. I don't know a lot about programming. I am a researcher. I am engaged in the theory of flight mechanics and control direction deviation. But my tutor is engaged in the development direction of px4. I don't have to set up a px4 development environment and learn the co ...
Posted by hyngvesson on Thu, 06 Feb 2020 02:21:10 -0800
Custom systemctl management service
Brief introductionsystemd is to control power on service, power on level and other functions by means of management unit.In / usr/lib/systemd/system directory, there are various unit files, including service unit with service suffix, power on level unit with target suffix, etc. here are the files about service suffix. Because system D needs t ...
Posted by baennaeck on Thu, 06 Feb 2020 01:46:46 -0800
K8S single master deployment I: environment planning, ETCD deployment
Experimental environment planning
Summary
Use VMwork virtual machine to deploy small cluster with single master and double nodes, and install etcd on both master and node to implement etcd cluster.
Software adopted version
Software name
Edition
Linux system
Linux version 4.8.5
Kubernetes
1.9
Docker
Docker version 19.03.5
Etcd
v3.3. ...
Posted by Cinds on Wed, 05 Feb 2020 06:33:21 -0800
LVS-DR mode + ldirectord + preserved + Tun tunnel mode + wrr weight
What is LVS?
LVS (Linux Virtual Server), or Linux virtual server, is an open source load balancing project led by DR. Zhang wensong. At present, LVS has been integrated into Linux kernel module. This project implements the load balancing scheduling scheme of data request based on IP in Linux kernel. I ...
Posted by ifuschini on Wed, 05 Feb 2020 02:59:10 -0800
linux domain socket
Unix domain socket
One of the ways of communication between processes in Linux is through network socket.
UNIX domain sockets are used to communicate with processes running on the same machine. Although Internet domain sockets can be used for this same purpose, UNIX domain sockets are more efficient. ...
Posted by Birmingham on Tue, 04 Feb 2020 22:55:17 -0800
TypeError: type str doesn't define __round__ method
I was bluffed at first, but later I found it was a basic problem,
The final results are as follows:
#!/usr/bin/env python3
# -*- coding:utf-8 -*-
import subprocess
def collect():
filter_keys = ['Manufacturer', 'Serial Number', 'Product Name', 'UUID', 'Wake-up Type']
raw_data = {}
...
Posted by Base on Tue, 04 Feb 2020 06:27:39 -0800