Varun R

Hue - Hadoop User Experience What is Hue? ●      Hue is a Web interface for analyzing data with Apache Hadoop. ●      Query and visualize data directly from your Browser. Installation Prerequisites: 1.     Centos 6/7 2.     Hdp 2.3 above 3.     Apache ambari 1.7 above. Preparing Environment and downloading Hue: ●      Sudo yum groupinstall "Development Tools" ●      Sudo yum install ant ●      Sudo yum install gcc g++ ●      Sudo yum install libkrb5-dev libmysqlclient-dev ●      Sudo yum install libssl-dev libsasl2-dev libsasl2-modules-gssapi-mit ●      Sudo yum install libsqlite3-dev ●      Sudo yum install libtidy-0.99-0 libxml2-dev libxslt-dev ●      Apache maven install:       ...

Prequistes: 1.  JDK 8 installation on ubuntu:                   i)  sudo add-apt-repository ppa:webupdteam/java -y                  ii) sudo apt-get update                  iii) sudo apt-get install oracle-java8-installer                    iv)  Check java version : java -version  2.  Nebeans installation on ubuntu:                             i)  Download and install Netbeans from this  URL .                   ii) Give Executable Permission:                              $ chmod +x  ~/Downloads/Netbeans-8.2-linux-*.sh         ...

REST API Concepts:             REST (REpresentational State Transfer) is an architectural style, and an approach to communications that is often used in the development of  Web services . What is Web Services:             "Exposed to internet, that are programmatic access" API:           The APIs that are executed in single machine ie Each jar files executed inside a client application. In case of web-services, other developer call them code and write code to consume these services.            For Example, The twitter.com it would produce output as HTML/CSS format, that are human readable web application. As same as api.twitter.com, that would produce data like xml/json format. Web-service Characteristics:       1. Exchange of data, that are HTTP methods.      2. Protocol - HTTP.      3. It ...