Hello there? S’up?
On my previous post, we’ve learned how to develop Hadoop MapReduce application in Netbeans. After our application run well on the Netbeans, now it’s the time to deploy it on cluster of computers. Well, it supposed to be multi node cluster, but for now, let’s try it on a single node cluster. This article will give a step-by-step guide on how to deploy MapReduce application on a single node cluster.
In this tutorial, I’m using Ubuntu 9.10 Karmic Koala. For the Hadoop MapReduce application, I’ll use the code from my previous post. You can try it by yourself or you can just download the jar file. Are you ready? Let’s go then..
Preparing the Environment
First time first, we must preparing the deploying environment. We must install and configure all the software required. For this process, I followed a great tutorial by Michael Noll about how to run Hadoop on single node cluster. For simplicity, I’ll write a summary of all the steps mentioned on Michael’s post. I do recommend you to read it for the details. Continue reading
Here is the situation. You are going to do an important presentation in an international conference. You have made your presentation slides, it’s like the greatest presentation in the universe. You made the presentation using the latest version of Microsoft PowerPoint or OpenOffice.org Impress. You double checked your presentation and laptop right before you’re doing your presentation. Suddenly, out of nowhere, your laptop crash, error, bsod, or anything. You have no choice, you transfered your slides file to another computer that can do presentation. Unfortunately, the computer didn’t have the program that can open your slides. The computer has the older version of PowerPoint that couldn’t open your slides. Or maybe the computer using another operating system that your presentation program didn’t support. You’re panic and can’t think clearly. Everything went dark and suddenly you passed out. Continue reading
What? NoSQL? Yeah, you read it correctly. NoSQL. I forgot when and where I heard about this for the first time. But I noticed about this data store technology again when I was attending the second Bancakan 2.0 meet up in last March. When I listened to the speaker, lynxluna, I remember about HBase, a scalable distributed database that becomes part of Apache Hadoop project. For your own sake, Apache Hadoop is just one implementation of MapReduce framework.
What is NoSQL?
So, what the hell is NoSQL? Here is the definition of NoSQL in Wikipedia:
NoSQL is a movement promoting a loosely defined class of non-relational data stores that break with a long history of relational databases. These data stores may not require fixed table schemas, usually avoid join operations and typically scale horizontally. Academics and papers typically refer to these databases as structured storage.
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About a year ago, I created a blog aggregator, or sometimes also called Planet. This planet display all the blog posts from my registered friends. At first, I did it alone. I maintained and designed it by myself. And then, my friend Andreas wanna help me maintaining the site. So I gave him a role as administrator. Some days ago, he sent me this email:
Rif,
Do you have opened the website in IE6? The layout and the design looks screwed :(
IE6 or Internet Explorer version 6 is a browser shipped with Windows XP. It was released in 2001. It has better CSS support than the previous version, at that time. The problem with the browser is it’s lacking support on the web standard. If you’re a web designer, you must know the designing problems in IE6 . This browser has bad reputation among web designers. Continue reading
Some days ago, there’s a vacancy offer in my undergraduate department mailing list. A company is looking for a programmer. I didn’t pay much attention to this email. Okay, here’s the email:
Mr. XXX, my office needs a programmer with this qualification:
- Have knowledge in VB, Java, and PHP
- Have any experiences as a programmer/developer for at least 1 year in IT division or in IT company or software house
- Have an ability to give product presentation to potential clients
- Have knowledge in CorelDRAW and Photoshop
- Have knowledge in Linux
- Have knowledge in building computer networks
- Have knowledge in hardware
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