Apache Oozie is the tool in which all sort of programs can be pipelined in a desired order to work in Hadoop’s distributed environment. Oozie also provides a mechanism to run the job at a given schedule. This tutorial explains the scheduler system to run and manage Hadoop jobs called Apache Oozie. It is tightly integrated with Hadoop stack...

What is scikit-learn or sklearn? Scikit-learn is probably the most useful library for machine learning in Python. The sklearn library contains a lot of efficient tools for machine learning and statistical modeling including classification, regression, clustering and dimensionality reduction. Please note that sklearn is used to build machine...

SQL SQL is a database computer language designed for the retrieval and management of data in a relational database. SQL stands for Structured Query Language. This tutorial will give you a quick start to SQL. It covers most of the topics required for a basic understanding of SQL and to get a feel of how it works. Why to Learn SQL? SQL is...

What is AWS Cheat Sheet..? Amazon Web Services (AWS) is a provider of cloud services offering easy access to a range of useful computing resources. All of it is offered on an on-demand basis, which is highly cost efficient. It is recommended that IT practitioners embrace AWS and if you are one of them, you will have to implement newer...

Custom directives are used in AngularJS to extend the functionality of HTML. Custom directives are defined using the "directive" function. A custom directive simply replaces the element for which it is activated. AngularJS application during bootstrap finds the matching elements and does one time activity using its compile() method of the custom...

Python Pandas Tutorial  Pandas is an open-source, BSD-licensed Python library providing high-performance, easy-to-use data structures and data analysis tools for the Python programming language. Python with Pandas is used in a wide range of fields including academic and commercial domains including finance, economics, Statistics,...

Python Cheat Sheet Tutorial  Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. It was created by Guido van Rossum during 1985- 1990. Like Perl, Python source code is also available under the GNU General Public License (GPL). This tutorial gives enough understanding on Python...

Git is a distributed revision control and source code management system with an emphasis on speed. Git was initially designed and developed by Linus Torvalds for Linux kernel development. Git is a free software distributed under the terms of the GNU General Public License version 2. This tutorial explains how to use Git for project version...

A tuple is a collection of objects which are ordered and immutable. Tuples are sequences, just like lists. The differences between tuples and lists are, the tuples cannot be changed unlike lists and tuples use parentheses, whereas lists use square brackets.Creating a tuple is as simple as putting different comma-separated values. Optionally you...

A service desk is a centralized point of contact within an organization for handling IT-related issues and requests from users. It serves as a hub where users can report problems, seek help, and receive support for various IT services, such as software applications, hardware issues, network problems, and more. Service desks aim to ensure prompt...