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Jnan Dash

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Top Stories by Jnan Dash

Data Lake and Data Refinery – Gartner Controversy! Much discussion has been going on the new phrase called Data Lake. Gartner wrote a report on the ‘Data Lake’ fallacy, saying to be careful about ‘data lake’ or ‘data swamp’. Then Andrew Oliver wrote in the InfoWorld these beginning words, “For $200, Gartner tells you ‘data lakes’ are bad and advises you to try real hard, plan far in advance, and get governance correct”. Wow, what an insight! During my days at IBM and Oracle, Gartner wanted to get time on my calendar to talk about database futures. Then afterwards, I realized that I paid significant fee to attain the Gartner conference to hear back what I had told them. Good business of information gathering and selling back. Without meaning any disrespect, many analysts like to create controversial statements to stay relevant. Here is such a case with Gartner. The ... (more)

Lambda Architecture For Big Data By @JnanDash | @ThingsExpo [#BigData #IoT]

I attended a Meetup yesterday in Mountain View, hosted by The Hive group on the subject of Lambda Architecture. Since I had never heard about this new phrase, my curiosity took me there. There was a panel discussion and panelists came from Hortonworks, Cloudera, MapR, Teradata, etc. Lambda Architecture is a useful framework to think about designing big data applications. Nathan Marz designed this generic architecture addressing common requirements for big data based on his experience working on distributed data processing systems at Twitter. Some of the key requirements in buildi... (more)

The Rise of Private Equity in Technology By @JnanDash | @CloudExpo [#Cloud]

Last week, a public company Informatica got acquired by two private equity funds – the Permira fund and Canada Pension Plan Investment Board (CPPIB) for $5.3B. This is the biggest leveraged buyout so far this year. I am happy for my friend Sohaib Abbasi (we were colleagues at Oracle during the 1990s) who is CEO of Informatica after being a board member for a couple of years. During Sohaib’s time, the company entered into playing a bigger role in data archiving and life cycle management. It also made progress into offering cloud-based services. Gourav Dhillon (founder, Snaplogic) ... (more)

Big Data Visualization By @JnanDash | @BigDataExpo [#BigData]

Recently I listened to a discussion on Big Data Visualization hosted by Bill McKnight of the McKnight Consulting group. The panelists agreed that Big Data is shifting from the hype state to an “imperative” state. For start-up companies, there are more Big Data projects whereas true Big Data is still a small part of the enterprise practice. At many companies, Big Data is moving from POC (Proof of Concept) to production. Interest in visualization of data from different sources is certainly increasing. There is a growth in data-driven decision-making as evidenced by the increasing u... (more)

Fast Data vs. Big Data By @JnanDash | @BigDataExpo [#BigData]

Fast Data vs. Big Data – How to Combine? Today, all the discussion on Big Data centers around “static data” in a data lake (old Data Warehouse) accessed by BI tools or SQL on Hadoop (Hawk, Impala) or Map/Reduce algorithms (MapR) for analysis. This is looking at historical data and finding trends. Some new tools are trying to provide predictive analysis based on past trends. This area deals with mostly the volume and variety aspect of Big Data, but not the velocity or for “data in motion.” The term “Fast Data” is applied to data that is in motion. This component is getting more ... (more)