Web Clustering Using Haproxy

1. Overview of casesHaproxy is a popular cluster scheduling tool at present. There are many scheduling tools of the same kind, such as LVS and Nginx.Compared with LVS, LVS has the best performance but is relatively complex to build; Nginx's upstream module supports clustering, but it does not have a strong cluster node health check function an ...

Posted on Wed, 18 Sep 2019 13:10:54 -0700 by piet

Analysis of gh-ost Principle

Author's Profile: Yang Qilong, a 7-year veteran of DBA, is currently working in Hangzhou Youzan Technology DBA. He is mainly responsible for database architecture design and operation and maintenance platform development. He is good at database performance tuning and fault diagnosis. I. Introduction Last article (gh-ost online ddl change tool ...

Posted on Wed, 18 Sep 2019 02:51:33 -0700 by spiffy577

Django project: 3. User login and logout function

User login and logout function I. Functional Requirement Analysis 1. Login and Exit Function Analysis Flow chart         function Login page Login function Exit function II. Login Page 1. Interface design Interface specification Category Explain Request method GET url definition /user/login/ ...

Posted on Tue, 17 Sep 2019 07:30:56 -0700 by steve55

Tensorboard visualization, data form of Tensorboard, view data when the network is running

1.Tensorboard can record and display the following data forms: Scalar Scalars Picture Images Audio Audio Computational Graph Distribution of data distribution Histograms Embedding Vectors 2. Visualization of Tensorboard The first thing to do i ...

Posted on Sat, 14 Sep 2019 07:09:37 -0700 by mysterio2099

Path to kafka in-depth research - The zk configuration of the kafka and zookeeper profiles in detail

Catalog1/Zookeeper Profile Details2/kafka Profile Parameters Detailed3/Production environment zk and kafka profile notes4/kafka command details 1/Complete installing zookeeper to detail its configuration file zookeeper-3.4.14.tar.gzWhen installing zookeeper we are going to modify the file zoo_sample.cfg under the conf directory for zookeeper p ...

Posted on Wed, 11 Sep 2019 10:14:28 -0700 by xploita

[Java] Java AIO use

Welcome to the public number nullobject.The article was first published on a personal blog https://www.nullobject.cn The public nullobject is updated synchronously. This article mainly introduces Java AIO network programming. 1. What is AIO AIO in this article refers specifically to AIO in Java environment. AIO is a kind of IO model in java. As ...

Posted on Wed, 11 Sep 2019 04:23:10 -0700 by radstorm

java selenium div embedded scrollbar page long screenshot to send mail

java selenium web page embedded scrollbar screenshot to send mail Main problems Let's start with the following Because the company requires an interface, requesting this interface for web page screenshots and sending mail function, originally w ...

Posted on Wed, 11 Sep 2019 01:35:17 -0700 by js_280

Framework Project Learning - Mybatis Framework

Mybatis Framework Annotation Development for MyBatis Case Code Configuration of Annotation Mapping Method Multiparameter Pass Using - @Param Annotation Case Code Test Code Differences between #{} and ${} Delete case code Printing effect Use ...

Posted on Tue, 10 Sep 2019 18:29:51 -0700 by madrazel

[Symfony Security] Implements OAuth login using Guard

Symfony Security Whatever authentication is performed, it is essentially a process of searching user class through credentials. Whether it is a traditional form (username/password) login or an API token, credentials are usually stored in the request object (header, body, query, etc.), so they are extracted from the request object. The process o ...

Posted on Tue, 10 Sep 2019 03:31:35 -0700 by KiwiDave

Shrimp and Rice Music Reptilian

Shrimp and Rice Music Reptilian https://www.xiami.com/ This is the website I crawled this time. This is a front-end and back-end analysis website, this type of web is actually very good, as long as you find the right API, successful requests, then the desired data will be directly obtained. Let's take the green song as an example. https://www.x ...

Posted on Mon, 09 Sep 2019 22:44:44 -0700 by Stole