Flink of big data learning

Catalog   1: Introduction 2: Why Flink 3: What industries need 4: Features of Flink 5: The difference with sparkStreaming 6: Preliminary development 7: Flink configuration description Eight: Environment 9: Running components 1: Introduction Flink is a framework and distributed com ...

Posted by stodge on Fri, 17 Jan 2020 01:18:24 -0800

Complete Debian 7 configuration LAMP (Apache/MySQL/PHP) environment and building station - 2015

Learn from this In this article, I will share my other favorite DEBIAN system environment. It may be preferred by novices One click installation package , but this step installation is more clear about what you need to install, and it can save resources. Some components do not need to be installed, ...

Posted by l3asturd on Thu, 16 Jan 2020 09:27:57 -0800

Feign call error: failed and no fallback available

timed-out and no fallback This error basically occurs in the Hystrix fuse. The function of the fuse is to determine whether the service can be connected. If it is connected, it doesn't matter. If the call exceeds the time limit within the specified time, it will return an error through the fuse. Generally, you can set one of the following confi ...

Posted by Simbachips on Thu, 16 Jan 2020 07:41:32 -0800

Tomcat Server Varnish Proxy Server

Tomcat Server Overview Introduction to Java Java is a cross-platform, object-oriented programming language. Java technology has excellent versatility, efficiency, platform portability and securitysystem Java SE (Standard Edition) Java EE (Enterprise Edition) Introduction to JDK JDK(Java Devel ...

Posted by L0j1k on Wed, 15 Jan 2020 17:40:27 -0800

Seven principles of design mode

In the process of writing our call later, we will face from coupling. Cohesion and maintainability, scalability, reusability, flexibility and other challenges, design patterns to make the program have better: Code reusability (i.e. code with the same function, not written many times) Readability (i.e. ...

Posted by AwptiK on Wed, 15 Jan 2020 03:46:08 -0800

Jmeter calls Dubbo interface

Jmeter test Dubbo interface Preface dubbo Jmeter TestNG Spring This article introduces two ways to use jmeter to test dubbo interface Call through the way of jmeter secondary development (jar) (recommended, with requirements for coding ability) Call through JMeter plugins Dubbo Call through ...

Posted by magnetica on Tue, 14 Jan 2020 20:12:48 -0800

ShiroFilterFactoryBean, a key bean for the integration of shrio and spring

1. Let's first look at the inheritance relationship of ShiroFilterFactoryBean public class ShiroFilterFactoryBean implements FactoryBean, BeanPostProcessor The FactoryBean interface is implemented, which is an important interface in spring, so let's take a look at the interface methods implemented by t ...

Posted by chreez on Tue, 14 Jan 2020 02:04:44 -0800

mybatis plug-in development

We start from six aspects: plug-in configuration, plug-in writing, plug-in operation principle, plug-in registration and interception time, initialization plug-in, paging plug-in principle. 1. Plug in configuration Mybatis plug-ins are configured in the configuration. During initialization, these plug ...

Posted by Frame on Mon, 13 Jan 2020 02:54:49 -0800

One click crawling result of Java crawler and save it as Excel

One click crawling result of Java crawler and save it as Excel Save crawling results as an Excel table There is no official tutorial for exporting Excel. Here I will send a tutorial for exporting to Excel Guide bag I like to use Gradle because of my hobbies, so I'll use the Gradle configuration here //Reptile pack compile group: 'us.codecraft', ...

Posted by awais_ciit on Sun, 12 Jan 2020 07:17:13 -0800

Tomcat installation and optimization

Tomcat server is a free open-source Web application server, which belongs to lightweight application server. It is widely used in small and medium-sized systems and concurrent users in many occasions, and is the first choice for developing and testing JSP programs. Generally speaking, Tomcat, like apache or Nginx web servers, has the ability t ...

Posted by Azkoyen on Sun, 12 Jan 2020 05:46:01 -0800