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  • arjunmantri 2:17 am on March 7, 2015 Permalink | Reply  

    Run basic PIG latin, commands for the same,

    >hdfs dfs -copyFromLocal /”filename” :hdfs:/
    >pig sample.pig

    where in sample.pig is the script for pig file created by you and filename is the input file created.

  • arjunmantri 7:37 am on March 4, 2015 Permalink | Reply  

    Setting up Hadoop multi-node cluster on Amazon EC2 Part 2 

    Let's Do Big Data...

    In Part-1 we have successfully created, launched and connected to Amazon Ubuntu Instances. In Part-2 I will show how to install and setup Hadoop cluster. If you are seeing this page first time, I would strongly advise you to go over Part-1.

    In this article

    • HadoopNameNode will be referred as master,
    • HadoopSecondaryNameNode will be referred as SecondaryNameNode or SNN
    • HadoopSlave1 and HadoopSlave2 will be referred as slaves (where data nodes will reside)

    So, let’s begin.

    1. Apache Hadoop Installation and Cluster Setup

    1.1 Update the packages and dependencies.

    Let’s update the packages , I will start with master , repeat this for SNN and 2 slaves.

    $ sudo apt-get update

    Once its complete, let’s install java

    1.2 Install Java

    Add following PPA and install the latest Oracle Java (JDK) 7 in Ubuntu

    $ sudo add-apt-repository ppa:webupd8team/java

    $ sudo apt-get update && sudo apt-get install oracle-jdk7-installer

    Check if Ubuntu uses JDK 7


    View original post 2,213 more words

  • arjunmantri 3:59 am on February 11, 2015 Permalink | Reply  

    Harvard B-school opens the flood gates with online courses 


    (Poets&Quants) — After a pair of highly successful pilot runs, Harvard Business School is now opening its online program in business basics to students worldwide. The school is also inviting admitted MBA students to enroll in the program as a pre-MBA boot camp experience, particularly for non-traditional admits or those who need more basic quantitative work before showing up on campus.

    All told, slightly more than 1,100 students have now taken the primer on the fundamentals of business called CORe (Credential of Readiness) program. In the first beta starting last June, the trio of courses—Business Analytics, Economics for Managers, and Financial Accounting—were open to only undergraduate students attending colleges in Massachusetts and alumni. Some 600 students took the $1,500 two-month program. Harvard then tested the suite of courses on 500 managers at nine different companies in a B-to-B experiment.

    For the first time, HBS is now opening up…

    View original post 1,488 more words

  • arjunmantri 11:42 pm on January 16, 2015 Permalink | Reply  

    Author Nicholas Carlson Tells Us What Startups Can Learn From Marissa Mayer 


    [tc_5min code=”518603377″]
    There are few figures in the tech industry today who are more compelling than Marissa Mayer. So it’s not surprising that she makes for a very compelling subject in Marissa Mayer and the Fight to Save Yahoo, the new book written by Business Insider’s Chief Correspondent Nicholas Carlson. So we asked Carlson to swing by TechCrunch HQ while he was in town this week to chat a bit about the book.

    You can see our full seven-minute talk in the video embedded above, but I wanted to pull out a couple of quotes here. While the book has gotten a lot of attention for providing a detailed and sometimes unflattering look at Marissa Mayer and her career, it’s apparent that he’s come away from all his research and writing with nothing but respect for his subject. He said,

    “I think Marissa Mayer is a total…

    View original post 293 more words

  • arjunmantri 10:03 am on January 6, 2015 Permalink | Reply  

    TreeHacks register for the Hack.

  • arjunmantri 10:02 am on January 6, 2015 Permalink | Reply
    Tags: bmw

  • arjunmantri 6:30 pm on December 16, 2014 Permalink | Reply

  • arjunmantri 1:51 am on November 21, 2014 Permalink | Reply  

    Google came up with a formula for deciding who gets promoted—here’s what happened 

  • arjunmantri 7:56 am on November 20, 2014 Permalink | Reply  

    Uber Wants To Replace India’s Iconic Auto Rickshaws With Chauffeured Hatchbacks 



    Uber may be in the midst of a major PR crisis in the U.S., but it continues to ramp up its efforts in India — its second largest market — where it launched a low-cost service aimed at beating the country’s icon auto rickshaws.

    The company said Uber Go, its new service that includes small vehicles like the Tata Indica Vista (image below) and Maruti Suzuki Swift, is now available in all ten cities that it services in the country. The company believes it is now in a position to challenge India’s near ubiquitous fleets of auto rickshaws for cheap travel.

    Screenshot 2014-11-20 12.54.05

    Uber is in a constant state of price reductions and offers across its markets in Asia as it aims to accelerate mainstream adoption of taxi booking services across the region. It’s no surprise, then, that it is giving all Uber Go passengers an immediate and ongoing 35 percent discount on their rides.

    An Uber Go journey…

    View original post 559 more words

  • arjunmantri 12:41 am on November 20, 2014 Permalink | Reply
    Tags: Git push commands   

    go to current working directory…
    )git config –global “username
    )git config –global “mailid”
    )git config –list
    ) git init (which is initializing the current directory)
    ) git add . (instead of period specific filename can be mentioned)
    )git commit -m “UI for the chat”
    )git log
    )git remote add realtime (to connect to remote repo and give it alias such as realtime in this case)
    )git remote
    )git push -u realtime

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