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Servlet Filters: If you are a beginner in web application programming, then you have a doubt however the user unless logged in to the account access the resources. Most beginners don’t know how to solve this problem. This is avoided by using servlet filters. The basic functionality of the servlet …

Like other programming languages, Python has operators which help us to perform operations.As we know the operators perform operations on operands. A + B Here “+” is the operator and A and B are the Operands. The basic types of operators in Python: Arithmetic OperatorsRelational Operators (Comparision)Logical operatorsAssignment operatorsBitwise operatorsIdentity …

Like other programming languages python has standard data types, those are NumbersStringsListTupleDictionary In python, there is no explicit declaration of variables. As we know a variable is a reserved memory location to store specified data values. When a variable is created it reserves a space in memory with the memory …

MapReduce is a Distributed computing programming model suitable for processing of huge data. Hadoop is capable of running MapReduce programs written in various languages: Java, Ruby, Python. MapReduce programs are parallel in nature, thus are very useful for performing large-scale data analysis using multiple machines in the cluster. MapReduce is …

Hadoop is an open source Distributed processing framework that manages data processing and storage for big data applications running in clustered environments. Hadoop Service Architecture HDFS(Hadoop Distributed File System) Overview Hadoop is normally deployed on a group of machines (Cluster) Each machine in cluster is node One of the node …

SINGLE-NODE [STANDALONE] CLUSTER INSTALLATION The report here will describe the required steps for setting up a single-node Hadoop cluster backed by the Hadoop Distributed File System, running on Ubuntu Linux Hadoop is a framework written in Java for running applications on large clusters of commodity hardware and incorporates features similar …

What is Data ? Anything that can be stored can be referred as data. What is Big Data ?  Big Data is the term coined for huge Data ,In today’s  digital world the data is getting generated in unprecedented rate,  in order to store and process such huge data existing traditional …

Identifiers in Python: An identifier is a user-defined word for a special purpose. An identifier is a string of alphanumeric characters that begins with an alphabetic character or an underscore character that are used to represent various programming elements such as variables, functions, arrays, structures, unions and so on. A …

Generally, every programming language has syntax like the same python has its own syntax, key words, literals and identifiers. In the previous posting we learn how to execute single commands and multiple commands in shell. Now we focused on keywords in python. As we know a keyword is a reserve …

While installing, python is come up with IDLE (GUI). That means it is GUI for python developers and full form of IDLE is integrated development and learning environment. It works for both multiple line commands and single line commands execution. As the same we execute single line statements in the …