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Month: April 2016

Save and Retrieve image from SQLite in Android

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This blog is for beginners who wants to work with SQLite for storing images & retrieving the same in Android device. Here, in this blog we will be inserting and displaying an image from SQLite database. SQLite: SQLite is an open source SQL Database in local devices. It stores...
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Replicated Join in Pig

Replicated join
A Join simply brings together two data sets. These joins can happen in different ways in Pig – inner, outer, right, left, and outer joins. These however are simple joins and there are specialized joins supported by Pig. The specialized joins are: Replicated Merge Skewed In this post we...
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Recover a forgotten root password on Linux

Password-Protect-Folders-in-Linux
Through this Blog, we will discuss on how to change root password in Linux OS. So, if you forget the root password or have lost your root password, here is a step by step instruction to reset the same. This will work on most of the Linux versions like:...
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Beginners guide to FTP & SFTP Server Configuration

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Through this blog we will be discussing about FTP & SFTP server configuration on Linux Server. So what is FTP? File Transfer Protocol (FTP) is a standard protocol used to transfer computer files between client and server on a computer network. FTP – File transfer protocol is used to...
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Analyzing New York Crime Data Using SparkSQL

Spark-Use-Case
In this post, we will be analyzing the crimes dataset of New York using SparkSQL. In case you are not familiar with SparkSQL, please refer to our post on Introduction to SparkSQL. Dataset Description: This dataset is available publically, reflects the reported incidents of crime (with the exception of...
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Spark RDD Operations in Scala Part – 2

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In our previous post, we had discussed about the basic RDD operations in Scala. Now, let’s discuss about some of the advanced RDD operations in Scala. Here we have taken two datasets, dept and emp, to work on this operations. The datasets looks like this:       [DeptNo DeptName]                              [Emp_no...
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Know about of the Running of Hadoop Daemons

In this video blog, we will be discussing how to start your Hadoop daemons. We can come to the conclusion that the Hadoop cluster is running by looking at the Hadoop daemons itself. A Daemon is nothing but a process. So, Hadoop daemons are nothing but Hadoop processes. As...
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Map Reduce Internals In Hadoop

In this video blog post we will be discussing about how Map Reduce works in Hadoop with a Real time example. Map Reduce in Simple Words: Input splits–>Map phase–>Reduce phase Generally, Map Reduce consist of two phases; one is Map phase and the other is Reduce phase. In the...
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Front End Interview Preparation Guide

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Front-end web development, also known as client-side development is the practice of producing HTML, CSS and JavaScript for a website or web application so that a user can see and interact with them directly. (src: Wikipedia) Before getting into Interview preparation we will have a look at skills required...
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Android Interview Preparation Guide

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Android is known as the world’s most popular operating system for mobile devices and tablets. It is an open source operating system which has been created by Google and is available to all kinds of developers with various expertise levels, ranging from rookie to professional. Android is a platform...
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