Montag, 16. Dezember 2013

NoSQL Matters 2014 April: CfP and Blind Bird Tickets

Dear Reader,

please note that NoSQL Matters Conference 2014 in Cologne has

  • on open call for talks and
  • a blind bird phase to buy an advantageous ticket 
ending soon. So save money and tell us if you have something to speak about!

28th April: Training
29th April: Conference Day 1
30th April: Conference Day 2

Montag, 11. November 2013

Statosphere Summit 14th/15th November!

Around in Berlin 14th/15th November?! Register for the Stratosphere Summit and lean about the latest research in scalable Big Data Analytics!

If you can't make it join the Big Data Meetup talk by Kostas Tsoumas 20th November!

Don't miss these events.

Samstag, 2. November 2013

Book Review: Hadoops Operations and Cluster Management Cookbook

I just had the opportunity to dig a little deeper into the Hadoop Ops & Cluster Management Cookbook. The 368 pages and eight chapters follow the path: big data, preparing, configuring, managing, hardening, monitoring, tuning and running on AWS. 
The book claims to provide 60 recipes and targets everyone who has to maintain a hadoop cluster. It is also referring to many tools around the ecosystem as flume, oozie, squoop, spark, storm, ambari, etc. The book is full of these typical PACKT hints. I really liked the installation part which is full of colored pictures (especially the Amazon chapter) to e.g. select the right packages and it does even little steps in the appropriate detail (e.g. as a ssh configuration). Tons of topics as import / export, logging, or even monitoring are written so practically that you feel the intense urge to install something like Ganglia. Newbies who did not had Hadoop installed will find the starting chapters 1-3 valuable. All the others who would like to go in depth and find new tipps and tricks will surely find tons of stuff in chapter 4-8. E.g. balancing load, analyzing jobs, block size, startup-time, etc.

I have rarely seen a book with so much hands on and installation code like this one (which is a good sign, because doing is much more fun then reading plain text). Although I only ran some little clusters in a very unsophisticated mode for some short specific tasks (and hence my knowledge is limited), I am sure that it will take years to find operations and managemend knowledge NOT covered in this book. And I am still unable to find any weaknesses.

To summarize: the claim of explaining 60 tasks and tricks in Hadoop has succeded in a superb way. There is no other book I know taking the reader by the hand step by  step for Hadoop. Congratulations.

Mittwoch, 30. Oktober 2013

Added SnowCode Event

This new event has been inserted:

Please consider to visit!

Freitag, 25. Oktober 2013

Added Amisa Server and WhiteDB

Please welcome two new databases:


Amisa Server. Fast distributed real-time analytics and search engine. API: REST and many languages. Query method: AQL (identical to SQL syntactically and functionally). Written in C++. Concurrency: MVCC. Misc: ACID transactions, distributed file system, static and dynamic schema support, in memory processing, high availability. Commercial license.


WhiteDB is a fast lightweight graph/N-tuples shared memory database library written in C with focus on speed, portability and ease of use. Both for Linux and Windows, dual licenced with GPLv3 and a free nonrestrictive royalty-free commercial licence.

Freitag, 18. Oktober 2013


Please welcome:


 Redis inspired K/V store for Python object serialization.

Freitag, 27. September 2013

Dienstag, 24. September 2013

Sophia K/V DB

I would like to introduce sophia:

Sophia is a modern embeddable key-value database designed for a high load environment.
It has unique architecture that was created as a result of research and rethinking of primary algorithmical constraints, associated with a getting popular Log-file based data structures, such as LSM-tree. Implemented as a small C-written, BSD-licensed library.

Check it out!

Montag, 23. September 2013

Samstag, 21. September 2013

Free NoSQL Webinar

Dear Readers,

there is a free NoSQL webinar. Have a look:

Rich Search with NoSQL: Why now? As developers are rapidly moving to NoSQL for its speed and flexibility, search often becomes the new bottleneck. In this webinar we will cover various topics to optimize text search in NoSQL applications. Included will be a live installation/configuration of the SRCH2 search engine in a MongoDB application. Attend the webinar by signing up at:

Mittwoch, 18. September 2013

All Your Base Conference in Oxford.

Please consider this conference is you are in England:

Best Regards

Mittwoch, 21. August 2013

GOTO BERLIN 2013 ends soon!


Early bird of GOTO BERLIN 2013 ends soon:
Enjoy and even reserve Alistair Cockburn and more hot speakers!

Check out the program:
I would be happy to meet you there.
Stefan Edlich

Montag, 10. Juni 2013

NoSQL Matters Barcelona CfP and Sponsors!

Dear all,

please have a look at the Call for papers and consider to submit a talk in Barcelona!
(NoSQL / Big Data / Streaming, etc...)

Furthermore there are only two places left for sponsors!

One for silver and one for tapas an beer.

Please contact me at edlich at

Sonntag, 26. Mai 2013

NoSQL Roadshow in San Francisco 16th May (=> Promo Code)

Interested in a Promo Code for the NoSQL RoadShow in San Francisco 16th May? 
Contact me!
And don't miss it!

Stefan Edlich

Montag, 13. Mai 2013

Dienstag, 23. April 2013 special offer

Last change to meet Martin Fowler and me. Special 30% discount code for the NoSQL Matters conference: Edlich_3013 for all my nosql-blog readers.

Montag, 22. April 2013

Getting Started with NoSQL (new book)

I just bought the new NoSQL book from Gaurav Vaish who formerly worked for Yahoo! India. The book is issued by PACKT Publishing and has 142 pages. As I read all NoSQL books available, wrote the worlds first NoSQL Books and have been a reviewer for some NoSQL books I have a good overview on the NoSQL book market and the content.

The book starts with two chapters on “Overview-” and “Characteristics of NoSQL”. The latter chapter is especially interesting because it starts with the relational approach and then puts the NoSQL approach in contrast. It’s a quite pleasant read how Vaish is discussing all different aspects and the complete differences to the NoSQL world. Chapter three discusses the typical four NoSQL DB types and has a few sentences which is a novelty for NoSQL books. Nevertheless I am sure you will see this area increase dramatically in the future. The mixture of information together with good code examples is well done.

Vaish continues with a short “Advantages and Drawbacks” chapter which is perfect for beginners. But the true pearl of this book is the chapter “Comparative Study of NoSQL Products”. There he compares ten databases by a lot of criteria as language, engine type, speed, features, bulk operations, query capabilities, security, multitenacy, RDBMS related features, tools, protocols and much more as community and vendor support. The book closes with a case study implemented in MongoDB as an example. This is quite useful as it contains features and constraints and schema discussion.

The book itself is extremely well written for the target audience wanted to get started with NoSQL. The discussion depth of advantages and drawbacks is amazing compared to the size of the book. And it’s really hard to find drawbacks of the books. E.g. the engine type table on page 61 is unnecessary especially as only Cassandra also has a ‘yes’ in type document store column which is doubtful.

Nevertheless compared to the price there is no other NoSQL introduction book on the market which gets you started and knowledgeable that fast.

Montag, 8. April 2013

NoSQL Roadshows in Germany

We would like to bring your attention to the next NoSQL Roadshow, taking place in Berlin on the 16th of May.

NoSQL Roadshow is a one-day NoSQL / Big data conference designed for software developers, cloud architects, data managers, IT architects and tech ambassadors. It is an ideal opportunity for learning, networking and tracking innovation within the area of NoSQL solutions such as Riak, Neo4j, Hadoop, Cassandra, MongoDB and many others.

For more information please visit the Berlin Roadshow website:
NOTE: Early bird valid until 31.04!


NoSQL Nights are free evening community events, driven by involvement from both speakers and participants. Come along and learn something new! We will provide a light meal - all you have to do is show up.

Scheduled NoSQL Nights:

 *   NoSQL Night II, Munich: April, 09 2013
 *   NoSQL Night I, Berlin: April 25, 2013
 *   NoSQL Night II, Berlin: May 7, 2013

To register for Munich Nights send an e-mail to: Ewa>, please include your personal data (name, surname, company name and email address). Berlin Nights registration is availablee online, via registration forms.<> Seats are limited so first come, first served

Mittwoch, 27. März 2013

DevOps Infographic

Not quite NoSQL but an interesting infographic here.
Thanks Puppet Labs

Freitag, 22. März 2013

2 NoSQL Events in Germany! Don't miss them!

Do not miss these two great events in April in Germany on NoSQL:

1. NoSQL Mattes Conference
in Cologne 26.-27.April

2. NoSQL RoadShow
16th April in Munich

I would be happy to see you there, talk to you and learn about your use-cases.

Stefan Edlich

Montag, 11. März 2013


Please give FoundationDB a warm welcome!

Montag, 4. März 2013

GOT Night in Berlin

Don't miss the GOTO Night in Berlin next tuesday!

Donnerstag, 28. Februar 2013

NoSQL Matters Early Bird ends toady!

Don't miss to buy an early bird ticket for

Today is the last chance. If you can not come, please help spread the word.

Thanks a lot!
Stefan E.

Donnerstag, 21. Februar 2013

Welcome Datomic!

Finally managed to insert Datomic.

Please give it a warm welcome:

 API: Many jvm languages, Protocol: Native + REST, Query Method: Datalog + custom extensions, Scaling: elastic via underlying DB (in-mem, DynamoDB, Riak, CouchBase, Infinispan, more to come), Written in: Clojure, Concurrency: ACID MISC: smart caching, unlimited read scalability, full-text search, cardinality, bi-directional refs 4 graph traversal, loves Clojure + Storm

By the way: corrections or small additions are also very welcome as a pull request!

Stefan Edlich

NoSQL RoadShow Münich!

Dear all,

don't miss NoSQL RoadShow Munich this year.

16th April!

Mittwoch, 30. Januar 2013

Welcome RethinkDB

Please welcome the new RethinkDB!

API: protobuf-based, Query Method: unified chainable query language
(incl. JOINs, sub-queries, MapReduce, GroupedMapReduce); Replication:
Sync and Async Master Slave with per-table acknowledgements, Sharding:
guided range-based, Written in: C++, Concurrency: MVCC. Misc:
log-structured storage engine with concurrent incremental garbage

Good luck!

Mittwoch, 23. Januar 2013

Montag, 21. Januar 2013

Please welcome Velocity DB!

Dear all,

pleaese welcome VelocityDB!

100% pure C# code, embeddable, distributable, ACID/transactional, pessimistic/optimistic locking, compact data, B-tree indexes, LINQ queries, 64bit object identifiers (Oid) supporting multi millions of databases and high performance. Deploy with a single DLL of around 400KB.

Looks really fast. Give it a try.
Good luck!