Testing web applications with Selenium IDE:

By Sandhya

Selenium is Open Source automation tool for Functional and Regression testing of web applications. It allows users to test across multiple browsers and platforms.  We can write Selenium scripts in many programming languages such as Java, PHP, Python, Ruby, Perl and C#.

Selenium has a suite of tools:

  • Selenium Core
  • Selenium 1/Selenium RC
  • Selenium 2/Selenium WebDriver
  • Selenium Grid
  • Selenium IDE

I use Selenium IDE (Integrated Development Environment). It is  a Mozilla Firefox plugin [Add-on] and is  easy to install. .. (more…)

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Installing kerberized PostgreSQL (on Centos 6.5)

By Harikrishna Doredla

Kerberos is a network authentication protocol. It allows client / server communication over non-secure network using secret- key-cryptography ( “tickets”) to identity one another  (client and server). Once the server and the client mutually authenticate their identity , the privacy and data integrity of communications between client and server are assured. No hassle of hacking passwords in the network traffic.

Here is how I installed  on Centos 6.5 , this highly secure solution from MIT ( Michigan Institute of Technology) to achieve kerberized PostgresSQL. .. (more…)

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Debug MapReduce Code in Eclipse

By Prasad Khode

I am involved in development of a critical solution for a financial organization. The solution involves analysis of multitude of transactions and data coming from multiple resources . Hadoop is the most flexible option to handle big data and it efficiently implements MapReduce.

I share here my experience to execute and debug Map-Reduce code in Eclipse just like any other Java program.

When we run Map-Reduce code in Eclipse, Hadoop runs in a special mode called LocalJobRunner, under which all the Hadoop daemons run in a single JVM (Java Virtual Machine) instead of several different JVMs.

The default file paths are set to local file paths and not of HDFS paths. .. (more…)

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