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  Cleansing data with Pig and storing JSON format to HBase with Pig UDF

Introduction This post will explain you the way to clean data and store JSON format to HBase. Hadoop architect experts also explain Apache Pig and its advantages in Hadoop in this post. Read more and find out how they do it. This post contains steps to do some basic clean the duplication data and convert the data to JSON format to store to HBase. Actually, we have some built-in lib to parse JSON in Pig but it is important to manipulate the JSON data in Java code before store to HBase. Apache Pig...

   JSON,HADOOP ARCHITECT,APACHE HBASE,PIG UDF     2016-06-10 01:13:41

  Why is single threaded Redis so fast

Redis is a high-performance, in-memory key-value database. According to official test reports, it can support around 100,000 QPS (queries per second) on a single machine. However, Redis uses a single-threaded architecture in its design. Why does Redis still have such high performance with a single-threaded design? Wouldn't it be better to use multiple threads for concurrent request processing? In this article, let's explore why Redis has a single-threaded architecture and still maintains its spe...

   REDIS,SINGLE-THREADED,MULTI-THREADING     2023-02-28 05:16:22

  A Brief Guide to Voice Navigation and the Future of UX Design

Voice devices are now everywhere, whether you like them or not. Amazon's Alexa, Google's Assistant, and Apple's Siri have proved that voice interactions are not from science fiction films but part of our new reality. Just as touch screens, voice interaction with devices will completely revolutionize how we interact with our computers, smartphones, and watches (and even cars and houses) in the coming years. But you might ask yourself, why is it evolving at such a fast speed? Well, there are many ...

   UX DESIGN     2021-11-25 02:24:55

  On Erlang's Syntax

I first planned to release this text as an appendix entry for Learn You Some Erlang, but considering this feels more like editorial content and not exactly something for a reference text, I decided it would fit better as a blog post. Many newcomers to Erlang manage to understand the syntax and program around it without ever getting used to it. I've read and heard many complaints regarding the syntax and the 'ant turd tokens' (a subjectively funny way to refer to ,, ; and .), how annoying...

   Erlang,Syntax,Error     2011-12-22 08:35:42

  Simple Animation in the HTML5 Canvas Element

HTML5 is generating all kinds of buzz these days. Some of the buzz is about HTML5 being a replacement for Adobe’s Flash. I don’t think it’s there yet but it’s certainly on the way to changing the way content is presented on the web. This is a description of a very simple animation in an HTML5 canvas element. It is coded for readability and not for optimized operation. We’ll add a canvas element to a web page and then use javascript to draw on it. We will...

   HTML5,Canvas,Animation,Sample code     2011-07-01 10:20:08

  Google’s BERT - What changed and what didn’t

Most of us should already be aware that Google has updated their algorithm. The new algorithm is called BERT (Bidirectional Encoder Representations from Transformers) and has made at least a couple of modern-day SEO experts scratching their heads trying to figure out what it means.   The good news is that there have been no major changes enough to make SEO experts change their strategies drastically. This means that all of the linking and keyword researching techniques remain the same and w...

   GOOGLE UPDATE,BERT,GOOGLE ALGORITHM,GOOGLE SEARCH     2019-10-30 05:35:05

  Getting started with C++ TR1 regular expressions

Overview This article is written for the benefit of someone familiar with regular expressions but not with the use of regular expressions in C++ via the TR1 (C++ Standards Committee Technical Report 1) extensions. Comparisons will be made with Perl for those familiar with Perl, though no knowledge of Perl is required. The focus is not on the syntax of regular expressions per se but rather how to use regular expressions to search for patterns and make replacements. Support for TR1 ext...

   Regular expression,Replace,TR1,Extension     2011-08-14 07:25:20

  Database Testing – Practical Tips and Insight on How to Test Database

Database is one of the inevitable parts of a software application these days. It does not matter at all whether it is web or desktop, client server or peer to peer, enterprise or individual business, database is working at backend. Similarly, whether it is healthcare of finance, leasing or retail, mailing application or controlling spaceship, behind the scene a database is always in action. Moreover, as the complexity of application increases the need of stronger and secure database emerge...

   Database,Tips,Practice     2011-06-29 08:47:40

  We’re working our young people too hard

Yesterday, I shared an anecdote involving a school I once attended with a list. This anecdote eventually became the basis for a blog post. Traffic was fairly normal for the first few hours until it found its way onto hackernews.Then it exploded.The comments on both the original blog post and the post on hackernews filled almost immediately with opinionated hackers, teachers and students sharing similar experiences, discussing the problem and figuring out what should be done about it.Repeate...

   Education,Science,Teacher,Student,Exam     2011-11-17 08:38:01

  18 Good Web and Mobile Development Frameworks

iWebKitjQTouchjQuery MobileSencha TouchWijmo – jQuery UI WidgetsThe-M-Project – HTML5 Javascript FrameworkTreesaver.js – Framework for Creating Magazine-Style LayoutsjQuery Form Framework – jFormerNot Just A Grid – Flexible and Modular CSS FrameworkZepto.js – Minimalist JavaScript Framework for MobileGalleria – JavaScript Image Gallery FrameworkGury – HTML5 Canvas Utility LibraryAmplifyMobl – Open-Source HTML5-Based LanguageSproutCor...

   Web,Mobile,Android,iPhone,WP7,jQuery     2011-04-14 02:45:35

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