Last November my colleague David Morcillo, CTO at Adverway, and I went to the NoSQL Matters 2014 conference in Barcelona. We had a great time and attended very interesting talks by some relevant personalities in the field.

The conference started with a couple of Time Series Databases related talks. Ellen Friedman started the conference with her keynote “Seeing with your eyes closed”, where she brought us back to the 1800s when Matthew Fountain Maury carried out an analysis of timestamped measurements logged by sailors that produced accurate wind and current charts, in what she referred as the precursor of what nowadays we call Big Data.

Ted Dunning followed with his talk Very High Bandwidth Time Series Database Implementation, introducing OpenTSDB and MapR technologies, regarding scalable distributed Time Series Databases. Internet and mobile devices have plenty of sensors, and those are being used to log vast amounts of timestamped data. The need for specialized systems able to handle this kind of data extends to more and more projects and organizations, and NoSQL databases have a lot to explore and improve there.

Another interesting talk was the one given by Simon Elliston Ball, “When to NoSQL and When to Know SQL. He went on not only through the typical review and classification of the NoSQL technologies available, but he leveraged their strengths and weaknesses compared to good old SQL RDBMS. The results were not always those expected by some.

NoSQL databases are driven by constraints that are different from those that pushed SQL to the high reliability standards offered by ACID compliance. Instead, BASE (Basically Available, Soft state and Eventual consistency) compliance embraced by NoSQL allows compromises that make scalability and performance easier.

Nonetheless, on the days of Rapid Application Design, Machine Learning, Polyglot Persistence solutions for Big Data problems and other Social Internet driven sorcery, “non-Facebook” scale enterprises ask themselves what they really need. Even though we are giving radically different uses to persistence than years ago, Big Data is not a problem everybody has.Frequently restructuring your model isn’t everybody’s case either, or not the whole model at least.

There is a growing need for broader solutions that can cover nowadays OLTP needs, that often offer aggregated data as a value to the user, and that can serve as a base for the analyses needed to drive the business in the right direction at the right time. Both SQL and NoSQL are merging features and ideas from each other that could be used to address those needs without the complexities associated to maintaining different technologies running in conjunction. More words for the soup: NewSQL emerges from the mist… or cloud?

The fact is that many of the NoSQL solutions, before very specific by design, now incorporate hybrid designs that mix graph structures, documents, eventual consistency and other typical NoSQL features with more flexible query languages. Think about ArangoDB, GraphDB or the Aggregation Framework of MongoDB. Also the big SQL vendors are incorporating NoSQL ideas that can broaden their application, like PostgreSQL with the impressive JSONB implementation or their older arrays and hstores. Or the many columnar stores like Vertica or Amazon Redshift, specifically engineered for fast aggregation.

Also, the different clients of an organization’s data need to access it in different ways, imposing more challenges to the underlying persistence technology being used. More technologies bring different access paradigms on top of databases. Like ORMs let developers speak in object-oriented languages to RDBMS, projects like Apache Drill or Cloudera Impala implement SQL over data stores engineered for large map-reduce task, enabling fast querying and ad-hoc analysis over great amounts of data.

Much of these technologies where discussed in the conference, making it clear that choosing the right tool for the job is not an easy task. And that’s a major concern when creating a startup. Testing different alternatives is always useful but we must think agile and be pragmatic.

So that’s the main reason we both were there, to know a bit more about the state-of-the-art in persistence technologies. News like the upcoming release of the Redis Cluster first quarter of 2015 were great to hear. Also, Riak 2.0 is out integrating Solr, a full-text search engine, making this tool more interesting than ever.

Nando Gessler
Developer at Camaloon

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Essential Podcasts for Entrepreneurs & Tech Lovers

Podcasts are a great way to discover new subjects and new people. Whether you are a tech lover or an entrepreneur, bellow you will discover podcasts for entrepreneurs you should – without a doubt – listen to. 

Itnig Podcast with César Migueláñez, Bernat Farrero and Carlos Pierre
Itnig Podcast with César Migueláñez, Bernat Farrero and Carlos Pierre

« Masters of Scale » 

with Reid Hoffman

The host: Reid Hoffman decides to turn to the corporate world instead of pursuing a university carrier. He worked for Apple, Fujitsu for then starting his own business: SocialNet and left it in 2000 to join Confinity. Confinity gives life to Paypal after fusionning. Finally, in 2003, Hoffman co-founds LinkedIn. He is Master of Scale’s host. 

About: The podcast welcomes some of the greatest entrepreneurs. You will discover throughout the talk how they managed to take their companies from 0 to a lot of zeros. You can listen to Masters of Scale’s special guests like Mark Zuckerberg (Facebook), Selina Tobaccowalla (Evite), Brian Chesky (Airbnb) or Nancy Lublin (Crisis Text Line). Must-hear: one of the top tech podcasts for entrepreneurs.

Listen to the podcast: On their website, Apple Podcasts, Spotify and Youtube

The Team: Reid Hoffman, June Cohen, Deron Triff and Jai Punjabi

« Rocket » 

with Christina Warren, Simone de Rochefort and Brianna Wu

The hosts: Christina Warren started as a Freelance Writer. Then, she worked at Mashable as a Senior Tech Analyst and Tech Correspondent and ended the journey at Microsoft as a Senior Cloud Developer Advocate. About Simone de Rochefort, she is  Senior Video Producer and co-host of The Polygon Show. Brianna Wu founded her first startup at the age of 19, Giant Spacekat. She was Head of Development at the time. She is now running for US Congress. 

About: In this podcast, you will discover three passionate women and their “geek conversation” as they like to call it.  No guest speakers, but you will be able to listen to a panel of tech subjects from Apple to Comics, you will not be disappointed. 

Listen to the podcast: On their website, Apple Podcasts, Overcast, Pocket Casts, Spotify and Castro

« This week in Startups »

with Jason Calacanis

The host: Jason Calacanis starts as an internet industry journalist in New-York. In 2003, he co-founded Weblogs, Inc and then a few years later he joined Sequoia Capital, launched the web directory Mahalo. He also founded Furthermore, he created This Week in Startups podcast and a startup named Finally, he was part of the creation of the Sydney Launch Festival. 

About: Either you are looking to start your own company, or you are a successful entrepreneur, or you just love technology, this podcast will give you a peek to the entrepreneurship world. You will hear stories of all kinds! On his website, you will also find his events and some research on transportation, healthcare and more. This is one is part of the tech podcasts for entrepreneurs not to be missed.

Listen to the podcast: Apple Podcasts, Youtube, SoundCloud and RSS Feed

You can also subscribe to their newsletter in order to receive episodes directly. 

The Team: Jason Calacanis, Jacqui Deegan, and Tony Agapiou

« Recode / Decode » 

with Kara Swisher

The host: Kara Swisher is an American journalist specialized in the technology industry. She first started to work for an alternative newspaper in Washington for then working for the Washington Post. She wrote articles for the Wall Street Journal and New York Times and wrote her own books. Finally, in 2014, she created Recode, a website dedicated to the latest technology news. In 2015, she initiates Recode Decode. 

About: The weekly podcast welcomes tech experts and great entrepreneurs. They review how they got there, what’s on their mind about the current industry and what they would improve or create. Her recent guests were Elon Musk (Tesla CEO), former Secretary of State Hillary Clinton and Mark Zuckerberg. 

Listen to the podcast: Apple Podcasts, Google Podcasts, Spotify, Stitcher, and TuneIn

« K Fund PodKast »

with Jaime Novoa

The host: Jaime Novoa’s background is quite diverse. He is a writer and an investor, but he also worked in data analysis and social media analysis. In 2014, he founded Novobrief, a newsletter for startups. Then, in 2016, he becomes an investor at K Fund and he founds, in 2019, Dealflow, a weekly tech newsletter. 

About: The podcast discusses startups, entrepreneurs and Venture Capital. You will discover enterprises and their story. From data science, unicorns or digital platforms, you sure will find more than one interesting podcast. 

Listen to the podcast: On their website and Soundcloud

« Clockwise »

with Dan Moren and Mikah Sargent

The hosts: Dan Moren is an active author and writer as well as podcaster. He was a Senior Editor at Macworld. Today, he hosts two podcast shows: Clockwise and The Rebound. As for Mikah Sargent, he started as a Website Designer and Developer for then switching as a Senior Editor at Newsy. He now hosts few podcasts such as Clockwise on Replay FM or on 

About: The weekly podcast discusses technology and welcomes each time 2 special guests. For 30 minutes, they address 4 topics where all four speakers get to elaborate on the matter, highlight the issues and expose their thoughts. 

Listen to the podcast: On their website, Apple Podcasts, Overcast, Pocket Casts, Spotify and Castro

« Itnig Podcast»

with Bernat Farrero

The host: Bernat Farrero starts his career as a Developer. In 2009, he founded Itnig, a startup ecosystem that organizes entrepreneurship events. They also have a coworking for startups, a podcast and a fund for early-stage projects. Furthermore, he is a Founder of Factorial, Quipu and Camaloon. He is also a Board Member of Playfullbet, GymForLess and Parkimeter. Finally, he hosts Itnig’s weekly Podcast. 

About: The podcast welcomes every week a new guest. If you wish to learn from successful entrepreneurs, you are on the right platform. The discussions turn around Technology and its industry. You will come across guests like Carlos Pierre (Badi), Vincent Rosso (BlaBlaCar) or Oscar Pierre (Glovo).

Listen to the podcast: Youtube, Spotify, Apple Podcasts, Ivoox, and Google Podcasts

You can subscribe to their newsletter if you want to receive the podcast’s link every Monday. 

Whether you are at an early stage of your project, an investor or you are just curious, these podcasts for entrepreneurs give you the opportunity to be updated on tech and business news. Also, you get to learn from successful international entrepreneurs, which can definitely be very useful for your business.