Programmer Think

Hello, my name is Mr. Foot (o^^o) Recently, a little partner asked me, Foot, you have written so many Docker articles, most of them are theoretical knowledge, no practice. Grandpa said, "Practice is the only standard to test the truth". To hear Grandpa, I decided to take Docker out for a walk. Let's deploy the docker run first, then ...

1. Introduction to echarts Previously Baidu echart (echarts.baidu.com), but now ECharts are hatching at the Apache Open Source Foundation, so the domain name (echarts.baidu.com) is no longer in use. Visit echarts.apache.org. ECharts, an open source visualization library using JavaScript, runs smoothly on PC s and mobile devices, is compatible ...

1, window concept Window is the core of dealing with infinite flow. The window divides the flow into "buckets" of limited size, and we can apply the calculation on the buckets. This document focuses on how to perform window operations in Flink and how programmers can get the most benefit from the functions it provides. T ...

Process of document analysis Divide the document into separate entries suitable for inverted indexingUnify entries into a standard format, such as removing tenses from English When the analyzer executes the above contents, it actually encapsulates the above functions into a package Character filter: pass the string through each character ...

UDP transport 1: Establish udp socket service 2: Receive data through receive method 3: Store the received data in the packet object 4: Analyze the received data through the function of packet object 5: Resources can be closed client /* Add feedback according to our normal thinking, but there is no response. Why The reas ...

First, we need to build three virtual machines (here is a demonstration). For the construction process, please refer to this article. Using virtual machine to complete Hadoop fully distributed construction_ You can read your own blog - CSDN blog After completing the Hadoop fully distributed construction in the previous article, you can do the ...

catalogue 0. Links to related articles 1. Environmental preparation 1.1. Build server environment 1.2. Building Maven projects and writing data 2. Maven dependence 3. Core code 3.1. Direct query 3.2. Condition query 0. Links to related articles Summary of articles on basic knowledge points of big data 1. Environmental preparation ...

1, Collection introduction 1) Scala's collections fall into three categories: sequence Seq, Set and Map. All collections are extended from Iterable Characteristics. 2) For almost all collection classes, Scala provides both variable and immutable versions, which are located in the following two places: Package Immutable set: ...

preface This article belongs to the column big data technology system, which was originally created by the author. Please indicate the source of quotation. Please point out the deficiencies and errors in the comment area. Thank you! Please refer to the table of contents and references of this column Big data technology system catalogu ...

Learning notes for Hbase (2) In the learning notes (1) of Hbase, it mainly briefly states the theoretical knowledge related to Hbase. In the learning notes (2) of Hbase, we mainly learn the simple addition, deletion, modification and query commands of Hbase. Basic shell command operation of Hbase 1. Enter the Hbase shell command line window ...