The Fifth Elephant 2012

Finding the elephant in the data.

What are your users doing on your website or in your store? How do you turn the piles of data your organization generates into actionable information? Where do you get complementary data to make yours more comprehensive? What tech, and what techniques?

The Fifth Elephant is a two day conference on big data.

Early Geek tickets are available from

The proposal funnel below will enable you to submit a session and vote on proposed sessions. It is a good practice introduce yourself and share details about your work as well as the subject of your talk while proposing a session.

Each community member can vote for or against a talk. A vote from each member of the Editorial Panel is equivalent to two community votes. Both types of votes will be considered for final speaker selection.

It’s useful to keep a few guidelines in mind while submitting proposals:

  1. Describe how to use something that is available under a liberal open source license. Participants can use this without having to pay you anything.

  2. Tell a story of how you did something. If it involves commercial tools, please explain why they made sense.

  3. Buy a slot to pitch whatever commercial tool you are backing.

Speakers will get a free ticket to both days of the event. Proposers whose talks are not on the final schedule will be able to purchase tickets at the Early Geek price of Rs. 1800.

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Joydeep Sen Sarma


The Elephant in the Cloud

Submitted May 23, 2012

How do you build a big data service in the Cloud? How can we make queries against relatively slow Cloud Storage Systems fast? How can we take real advantage of the elasticity available in the Cloud? How do you make the Cloud dead easy to use for big data processing?

At Qubole we have been searching for answers to these questions and would love to share what we have discovered and built.


Hadoop and frameworks on top of it like Hive are a popular application running in the Cloud. The Cloud architecture though is significantly different - in terms of it’s elasticity, it’s latency characteristics and it’s pricing models than a regular data center. It can also be daunting to a lay user to understand and setup. In this talk we will describe how Qubole Data Service has adapted Hadoop and Hive to uniquely fit and exploit the Cloud architecture and make big data processing easy and accessible to all. The agenda will be roughly as follows:

  1. Start by covering some key characteristics of the Cloud.
  2. Describe the current state of art of running Big Data stack in the Cloud and the problems and opportunities for improvement in the above.
  3. Describe Qubole Architecture and how we have attempted to tackle some of these problems.
  4. Demonstrate some of the usability enhancements and go over some performance comparisons.

Speaker bio

Joydeep is a co-founder at Qubole and heads their India development team. Prior to starting Qubole - Joydeep worked at Facebook where he boot-strapped the data processing ecosystem based on Hadoop, started the Apache Hive project and led the Data Infrastructure team. Joydeep was a key contributor on the Facebook Messages architecture team that brought Apache HBase to Facebook and to the transactional and reporting backends for Facebook Credits. He has been a driver for other important sub-projects in the Hadoop ecosystem - like the FairScheduler and RCFile. Joydeep studied Computer Science at IIT-Delhi and University of Pittsburgh and started his career working on Oracle’s database kernel and building highly available and scalable file systems at Netapp. In between - he has played founding roles in storage and advertising startups. He cut his teeth building data driven applications as the lead engineer on Yahoo’s in-house Recommendation Platform.

Joydeep holds numerous patents, has many published papers and has been both speaker and panelist at Hadoop summits and at other Silicon Valley conferences.


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All about data science and machine learning