Source Code Analysis Elastic Job Failure Transfer Mechanism

This section explores Elastic Job failover mechanisms. We know that Elastic Job is a distributed task scheduling framework based on Quartz, where the distribution is the distribution of data. Elastic Job's core design concept is that a task is executed on multiple nodes, each node processes a part of the data (task to be processed data fragment ...

Posted on Wed, 09 Oct 2019 20:50:02 -0700 by vomitbomb

Spring Boot Cache Actual EhCache

Spring boot uses SimpleCacheConfiguration by default, even using Concurrent MapCache Manager to implement caching. But switching to other cache implementations is also simple. pom file Introducing corresponding jar packages into pom <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifact ...

Posted on Wed, 09 Oct 2019 20:14:25 -0700 by judgy

Principle of SpringBoot Health Examination

I believe that all the students who read the previous article know the routine of SpringBoot automatic assembly. Look directly at the spring.factories file. When we use it, we only need to introduce the following dependencies. <dependency> <groupId>org.springframework.boot</groupId> <artifact ...

Posted on Wed, 09 Oct 2019 19:30:08 -0700 by fantomel

Elastic Search Actual Warfare Series III: Elastic Search's JAVA API Use Tutorial

Preface It was introduced in the last article. Elastic Search Actual Warfare Series II: Elastic Search DSL Statement Use Tutorial - Illustration This article explains the use of Elastic Search 6.x's official Java API. ElasticSearch JAVA API At present, there are several common Elastic Search Java API packages on the market, such as JestClient, ...

Posted on Wed, 09 Oct 2019 18:52:19 -0700 by mjohnson025

java Foundation (14): Use of Eclipse, Object-Oriented, Custom Data Types

1. Application of Eclipse 1. Common shortcuts Ctrl+T: View the inheritance tree of the selected class For example, in the following code, select the Teacher class name and press Ctrl+T to show the inheritance relationship of the Teacher class       //staff abstract class Employee{ public abstract void work(); } //lecturer ...

Posted on Wed, 09 Oct 2019 18:29:17 -0700 by McMaster

Teaching Wife to Learn Common Command Guidelines for Linux Operations and Maintenance

Teach your wife to learn Linux (two) Linux frequently used command Guide Author: Yao Maomao's blog tips: The article is too long, and it is sent out in two chapters. The first three chapters are: 1. File and directory operation; 2. File viewing and editing; 3. File searching and statistics. [TOC] I. overview 1.1 Write in the front-Learning Gui ...

Posted on Wed, 09 Oct 2019 17:10:16 -0700 by the_damo2004

[Offer] [4] [Search in two-dimensional arrays]

Topic Description Thought analysis Java code Code Links Topic Description In a two-dimensional array, each row is sorted in increasing order from left to right, and each column is sorted in increasing order from top to bottom. Please complete a function, input such a two-dimensional array and an integer, to determine whether the arra ...

Posted on Wed, 09 Oct 2019 15:35:55 -0700 by pdn

Spring-based declarative transactions using annotations (database operations, servlet implementations)

Implementing declarative transactions with annotations (database operations, servlet implementations) 1. Transactions: Let's see how transactions in databases are defined. That is to say, in a transaction, if many methods are invoked, either all of them are successfully executed or all of them fail to e ...

Posted on Wed, 09 Oct 2019 13:44:55 -0700 by nishmgopla

java Foundation (13):static, final, anonymous objects, internal classes, packages, modifiers, code blocks

1. final keyword 1.1 The concept of final The emergence of inheritance improves code reusability and facilitates development. However, there are also problems. Some classes do not want to be inherited after describing, or some of the methods in some classes have fixed functions and do not want subclasses to be rewritten. But when subclasses i ...

Posted on Wed, 09 Oct 2019 11:27:40 -0700 by novicephp

Explain in detail how http messages - web containers parse http messages

abstract stay Details of http messages In this paper, the text structure of HTTP message is introduced in detail. So as a server, how does the web container parse http messages? This paper takes jetty and undertow containers as examples to analyze how Web containers handle http messages. In the previous article, we can see from the overview tha ...

Posted on Wed, 09 Oct 2019 10:28:52 -0700 by dico