Wednesday, November 28, 2012

Hbase at Facebook

After understanding basics of HBase, let’s try to understand How Facebook uses HBase, I have got very good tutorial from Facebook, how they are using HBase for messeging. This tutorial includes Introduction to Hbase, Why Hbase, MySQL to HbaseMigration at Facebook


 

Tuesday, November 27, 2012

Hbase-A Soft Introduction & Quickstart

After understanding whats is Hadoop, and after deploying hadoop , lets’ start understanding HBase. This tutorial explains basics of HBase, and its features. Here I tried to explain functionality HBase provides and a quick start about HBase, a Basic tutorial for beginners. You will get to know where to use HBase, in which situation HBase can be useful.


Apache HBase
Source: Apache
Understanding What is HBase
HBase is an open source, distributed, versioned, column-oriented, No-SQL / Non-relational database management system that runs on the top of Hadoop. It adds transactional capability to hadoop, allowing users to update data records. Hadoop is designed for batch processing of large dataset, but with HBase on the top of Hadoop we can process real time dataset.

Sunday, November 25, 2012

Top 5 great merits and demerits using Cloud Computing


Cloud computing has undergone a rapid transformation with companies of varied sizes and dimensions adapting this technology. Cloud computing has its distinct advantages for medium and big business operations but is not preferred when it comes to smaller business owners. Below are listed some of the distinct advantages and disadvantages of this technology. Take your pick and choose with vision.
The Advantages
1.) Cost effective: The technology is cost effective as it is easy to upgrade and maintain the same. If one intends to go for traditional desktop software, it will cost a lot in terms of finance. Cloud computing is relatively cheaper and saves a lot. A range of options also exist in cloud computing and one can choose from among pay as you go or one time pay options, thus making this a cost effective endeavor.
2.) Unlimited storage: Unlimited storage capacity is another distinct advantage of cloud computing. You will never run out of storage space and need not worry about storing important data.
3.) Backup and recovery issues: As the data is stored in the cloud, resorting the same is relatively easier. The cloud service providers are capable of handling data recovery issues. This makes cloud computing a foolproof method when it comes to recovering important data.
4.) Software integration: Automatic software integration is a distinct advantage of cloud computing. No additional efforts are required when it comes to integrating or customizing the data.

Thursday, November 22, 2012

Onavo Extend App for iPhone Review

In today’s world of technology, smartphones are more precisely Internet-centric with hundreds of internet connected apps like social networking apps. Many, if not most of us, have faced and are still facing hefty charges for surpassing the limited tariff available with our data plan. At times like these, we wish to monitor our data usage and utilize every byte frugally. With advancements in technology, there are several monitoring and data tracking apps available that can help you stay within your data cap and also monitor your data usage. If you are looking for the best app that monitors data usage and keeps your bills in check, then try out the Onavo Extend App for your iPhone.

Onavo Extend, from the time it made to the app store in 2011, is been touted as a must-have app. It is a free compression app that helps in minimizing your phone’s data consumption even while disconnected from Wi-Fi. This app, with its decent customization options, collects reports of all the data-intensive activities on your iPhone like Web browsing, email operations (send and receive), map directions, etc. and cut downs the data usage. This core money-saving feature and also the way Onavo Extend literally extends your data plan, makes it the perfect choice for your iPhone. The Onavo Extend supports - iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4S, iPad 1, iPad 2 and iPad 3. But there still remains a question – ‘Is it really possible?’

Dropbox Hits 100 Million Mark

Dropbox has doubled in size this year to 100 million accounts. That is a hefty 50% increase over what it was just a year back. What’s more, the number of accounts keep piling up at an enormous rate and the total number of files being saved everyday is one billion plus. It is estimated that the company’s revenue for this fiscal is close to $500 million, but, Dropbox’s co-founder Drew Houston is intriguingly not confirming it or denying it either. However, he accedes to the fact that the company’s conversion rates are moving at a steady pace. Notably, it may be remembered that Dropbox has raised $250 million from Index Ventures, Sequoia, Greylock, Benchmark and Accel collectively.

The rising level of users and their activity, according to Houston, will be the driving force in taking the company’s plans forward in the future. According to him, Dropbox will be more like a magic folder where users will benefit by keeping all their information like to-do lists, notes, user names, passwords or simply anything that they care about to make surfing the Web easier than ever before. There are other radical changes taking place at Dropbox too.

Sunday, November 11, 2012

Basic Considerations while Building Private Cloud Network

The term ‘public’ always puts us on guard, whether it is the real world or the virtual world. What if someone accesses our account? What if there is a compromise on security? These are the first questions that pop-up. If you are apprehensive about running your business application in public, you can now have a private cloud. Here are a few steps to follow to convert your cloud network to private:

Standardization:

This is the basic step when you want to build a private cloud. This is the step where you have to choose the hardware and software features you are going to use. The more complex your environment is, the more cost you will incur. To avoid this, make your environment as simple as possible. This comes in use during the stages of automation and orchestration. When you simplify, custom integration gets easier and can be finished in no time. 

Friday, November 9, 2012

Computer Security: Tips for beginners to prevent security breaches

The presence of computers in this world has simply revolutionized the way people work, pay bills, shop and keep a check over their accounts and communication part with others. Computers can be called as a new home for them since it carries a wide range of valuable and classified data. Hence it’s a cool idea to have things locked and remain alert all the time to secure it. The people like hackers simply look for a chance to access your computer simply to steal vital information like bank details, and other business related data for their own interest. Also, there are number of viruses that attack your computer, which simply need some costly computer repairs. If you are among the novices, the following basic security tips could help you in protecting your computer and avoid security breaches.

A Cloud-based Device Security Solution

Cloud computing is the futuristic home of all your digital assets. Why carry all our pen drives and other storage devices and fear losing them when you can store your assets in the cloud and access them from anywhere in the world? Kepplr is one of the best cloud-based security solutions and you can rely on it to carry all your digital belongings and use them yourself in a flash.
Here are some great features of the service
1)      Data backup
Store all your content including videos, photos, spreadsheets, contacts, documents and many other things on the Kepplr cloud service. These content are accessible to you from anywhere, anytime and on any devices.
2)      Synchronizing
Now access your favorite music, photos, videos and other content in the device of your choice. Contacts backed up on Kepplr service can be backed up in iPhone, other smartphones, PC, laptop, tablet and ultrabook with just the click of a button.

Monday, November 5, 2012

Colfax's New Intel-Certified HPC Cluster for CAD & CAE

Colfax International on the 2nd of October unveiled its next-generation, ready to deploy HPC cluster which has an Intel Certification. The cluster which is the latest addition to the Colfax ClusterEdge series is based on Intel’s Xeon E5 processor family and was unveiled at the 2012 PBC Works User Group Conference, Sunnyvale, California.

The newly unveiled cluster is designed to meet the industry cluster architecture standards and is considered to be extremely easy to deploy and maintain. Also, this High Performance Computing Cluster from Colfax aims to speed up intense data oriented process and allows for a faster simulation and visualization processes. The cluster architecture is tested and verified for interoperability between the software, applications and the hardware components so that the cluster benefits can be achieved much faster. Furthermore, the cluster has a validation process, which ensures that the components in the cluster continue to work in harmony without any issues. This validation directly results in the increase in the uptime, productivity and reduction in total cost of ownership.

Sunday, November 4, 2012

Features of the Android 4.1 Jelly Bean OS


The latest operating system from Android is 4.1 Jelly Bean. This is an open source operating system which also supports third party applications. Google however does the major development and research at the OS level. Jelly Bean helps to enhance the overall user experience in devices that use Android.

Android Jelly Bean 4.1 has new features such as offline voice typing. Here you can do voice transcriptions without an internet connection in flight mode. The phone processer does all the voice processing locally. Jelly Bean does not need to interact with the server for this. Android was far behind other operating systems when it came to buffering. This version assists in smooth notifications and visual display. This is because Jelly Bean makes use of triple buffering which provides high levels of smoothness because of buffering in three layers.

Nokia Unveils Lumia 822

The once popular Finish company, Nokia is suffering from a decline in the usage of its products, after the smartphones have invaded the market. The company which is well known for its mobile phone and portable IT devices has strong rivals who have a complete control over the market. Apple and Samsung compete tough with Nokia and the Finnish company is all set to face its rivals in the United States. As a result, it has joined hands with Verizon Wireless to introduce Nokia Lumia 822 in the country. When judged based on unit sales, Nokia stands the second largest mobile phone manufacturer in 2012.

This autumn is going to be a special season for Nokia fans because Lumia 822 is expected to be around. Many still love Nokia products because they are flexible and comfortable to use. They do not require the delicate touch and handling which is highly impossible in today’s competing world. Nokia phones generally deliver an unmatched performance in terms of battery life, software and hardware. Although, camera and other related features are not at its best, Nokia phones satisfy the basic requirements. 

Triple Showdown: New iPad VS Nexus 7 Vs Kindle Fire HD

The market for tablet computers has become a lot more crowded these days. Apple, the tech world's de facto poster boy for ultra-mobile gadgets (think about iPods, iPhones and MacBooks for the smartphone, mp3 player and laptop markets) is also its reigning king when it comes to tablets. The Apple iPad enjoyed unprecedented popularity when it was first released on 2010; consequent generations of the gadget (iPad 2 and the "new iPad" - aka iPad 3, along with their Wi-Fi + 3G and Wi-Fi + cellular versions) were also met with more or less the same amount of fervor.

Recently, two more contenders have popped up that are both threatening to shake up the iPad's dominance over the tablet market. First off is the Amazon Kindle Fire HD, an upgraded version of the Kindle Fire (which is in itself a revamp of the original Kindle e-book reader, with added functionalities and features). Next up is Nexus 7, Google's first attempt to gain a foothold in the now competitive tablet market.

With all these choices, how can people choose which tablet is the right one for them? Let's take a look at some of the most important factors that can help them decide: