A little bit of technology a week, I know where you are!

First of all, this series of blogs is basically aimed at some newcomers or amateurs who have some interest in Android development, so it will be more detailed about the use but more general about some basic principles. This Android project is built in eclipse, so you need to configure the Android development environment, which ...

Posted by Fahid on Fri, 10 May 2019 02:32:38 -0700

API Gateway [gateway] 3

Recently, in the company API gateway rewrite, the company uses serverMesh for service registration, invocation, here combined with the previous study of API Gateway Services for a simple summary and analysis. Since a lot of nginx-related stuff has been used, here is a record: Using openresty in nginx Add nginx module Edit the conf configurat ...

Posted by toma42 on Fri, 10 May 2019 00:48:40 -0700

ZooKeeper implements member list management

outline One of the main difficulties of distributed applications is "partial failure". For example, through message middleware, one node in the network sends messages to another node. It is difficult for the sending node to know whether the message is successfully delivered, when it is delivered, whether the receivin ...

Posted by micah1701 on Thu, 09 May 2019 21:24:40 -0700

AbbitMQ Cluster Setup Job Based on Docker

AbbitMQ Cluster Setup Job Based on Docker 1. Goals Set up a RabbitMQ cluster with three nodes 2. Preparations 2.1 Operating System ubuntu-18.04-desktop-amd64 (Official iso download) Set the software source of ubuntu as a mirror of Ali to improve download speed.See https://opsx.alibaba.com/mirror Beginners recommend GUI configuration: System ...

Posted by waygood on Thu, 09 May 2019 20:06:39 -0700

Chapter 4 Learning Summary

Chapter 4 is about strings, arrays and generalized tables. In the process of doing the problem, strings are gradually found to be powerful in STL (the next goal is to be familiar with the functions of strings). Skyscraper L1-8 AI Core Code Valuated at 100 million Finally, the problem has been solved. The idea is to divide the levels as far as ...

Posted by ramjai on Thu, 09 May 2019 18:44:40 -0700

10 Minutes Learn to Use YOLO and Opencv to Achieve Target Detection

Absrtact: This paper introduces the use of opencv and yolo to complete video stream target detection, code interpretation is detailed, with source code, easy to use. In the previous section This paper introduces how to apply YOLO to image target detection. After learning how to detect a single image, we can also use YOLO algorithm to achieve t ...

Posted by sdjensen on Thu, 09 May 2019 16:20:39 -0700

[Introduction to Python] 38. First GUI program

ABSTRACT: Teach you how to use Python's built-in Tkinter to create the first GUI program. Write on the front: In order to learn python better, bloggers record their learning journey. This learning note is based on Liao Xuefeng's Python Course If there is any infringement, please inform us to delete it. Welcome to study Python ...

Posted by bufke on Thu, 09 May 2019 14:30:38 -0700

How do Spring Cloud microservices design exception handling mechanisms?

Guide reading   Today I'm going to talk about how exception handling mechanism should be designed when calling between micro-services when using Spring Cloud to design micro-service architecture. We know that in the design of micro-service architecture, a micro-service will inevitably provide corresponding functional service interfaces both i ...

Posted by Twysted on Thu, 09 May 2019 13:20:38 -0700

My way to self-study Python (Phase 2 Day9)

Today's lessons are as follows: 1. In C/C++, the result of the'/ 'arithmetic operator is usually determined by the data on both sides of the operation, such as: 6/3 = 2; 6,3 are integers, so the result is integer 2; 6.0 / 3.0 = 2.0; 6.0, 3.0 is a floating point number, so the result is also floating point 2.0, which is precisely Python 2.2 as l ...

Posted by tunari on Thu, 09 May 2019 12:44:39 -0700

8. neutron Network Virtualization

Article directory 8.1 Why Physical Networks Can't Meet the Needs of Cloud Computing 8.1.1 Large Capacity MAC and ARP Table Items 8.1.2 4K VLAN TRUNK 8.1.34 K VLAN upper bound problem 8.1.4 Network Dependency in Virtual Machine Migration 8.2 neutron Network Virtualization Capability 8.3 neutron provides network types 8.4 Reg ...

Posted by phphelpme on Thu, 09 May 2019 11:00:38 -0700