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Bericht der vergangenen Treffen

Summer break until September

We are on a Summer break until September. More details will follow soon. Join our meetup.com group for more information.

41st Meeting (July) – What does Bob really want? Building recommendation systems based on cloud technologies

On 1st July 2015 from 19:00 onwards, NoSQL User Group Cologne will welcome you with free beer, soft drinks and snacks. The entrance is also for free. This time Olivia Klose will tell us about “What does Bob really want? … Jetzt lesen »

Summer break until July

We are on a Summer break until July. More details will follow soon. Join our meetup.com group for more information.

40th Meeting (May) – Big Data Analysen mit Spark & Cassandra

On 6th May 2015 from 19:00 onwards, NoSQL User Group Cologne will welcome you with free beer, soft drinks and snacks. The entrance is also for free. This time Matthias Niehoff will tell us about “Big Data Analysen mit Spark … Jetzt lesen »

39th Meeting (March) – Cassandra in der Praxis beim neuen Galeria Kaufhof Webshop

Heey! On 4th March 2015 from 19:00 onward, NoSQL User Group Cologne will welcome you with free beer, soft drinks and snacks. The entrance is also for free. This time Manuel Kiessling will tell us about “Cassandra in der Praxis … Jetzt lesen »

38th Meeting (February) – Hadoop and Data Warehouse–Friends, Enemies or Profiteers? What about Real Time?

Heey! On 4th February 2015 from 19:00 onwards, NoSQL User Group Cologne will welcome you with free beer, soft drinks and snacks. The entrance is also for free. This time Kai Wähner will tell us about “Hadoop and Data Warehouse … Jetzt lesen »

37th Meeting (January) – Big Data mit Apache Cassandra und DataStax OpsCenter hochverfügbar und verteilt

Heey! We hope you are enjoying the holidays! On 7th January 2015 from 19:00 onwards, NoSQL User Group Cologne will welcome you with free beer, soft drinks and snacks. The entrance is also for free. This time Dominique Rondé will … Jetzt lesen »

36th Meeting (December) – An Introduction to Conflict-Free Replicated Data Types (CRDT)

Heey! The time has come! On 3rd December 2014 from 19:00 onwards, NoSQL User Group Cologne will welcome you with free beer, soft drinks and snacks. The entrance is also for free. This time Martin Schoenert will tell us about … Jetzt lesen »

35th Meeting (November) – CockroachDB: building an open-source Spanner

Heey! The time has come! On 5th November 2014 from 19:00 onwards, NoSQL User Group Cologne will welcome you with free beer, soft drinks and snacks. The entrance is also for free. This time Tobias Schottdorf will tell us everything … Jetzt lesen »

34th Meeting (October) – Apache Cassandra Introduction

On 1st October 2014 from 7:00 PM onwards, NoSQL User group Cologne will welcome you with free snacks, refreshing soft drinks and, of course, Leckere Kölsch. The entrance is also for free. Robert Stupp who is currently working on a … Jetzt lesen »

Summer break until October

NoSQL User Group Cologne is going on a summer break. We wish you all loads of sun and fun. The next meeting will take place on 1st October 2014. More updates to follow. Have a great summer!

33dr Meeting (July) – Node.js and Couchbase – Full Stack JSON

On 2nd July 2014 from 7:00 PM onwards, NoSQL User group Cologne will welcome you with free snacks, refreshing soft drinks and, of course, Leckere Kölsch. The entrance is also for free. Philipp Fehre from Couchbase will explain the peculiarities … Jetzt lesen »

32nd Meeting (June) – Single Point of Entry: Integrating relational and semi-structured data with PostgreSQL

Das nächste Meeting findet am 04.06.2014 satt und startet ab 19.00 Uhr. Dr. Ernst-Georg Schmid spricht über: Single Point of Entry: Integrating relational and semi-structured data with PostgreSQL Der Talk wird auf deutsch sein.

31st Metting (May): Time Series with InfluxDB

The next meeting will take place on 07.05.2014 and start from 7.00 pm onwards, Sebastian will talk about: Time Series with InfluxDB

30th Metting (April): Mastering the development challenges of end-to-end graph technology.

The next meeting will take place on 02.04.2014 and start from 7.00 pm onwards, Claudio Huyskens will talk about: At fedger.io, we built graph technology that autonomously collects data from several sources via API, interprets the data based on an ontology, … Jetzt lesen »

29th Meeting (March): NuoDB

The next meeting will take place on 05.03.2014 and start from 7.00 pm onwards, Martin Schönert will talk about: NuoDB NuoDB is a database startup company based in Cambridge, Massachusetts. It sells a NewSQL database that works in the cloud. … Jetzt lesen »

28th Meeting (February): Paxos

The next meeting will take place on 05.02.2014 and start from 7.00 pm onwards, Max Neunhöffer Schönert will talk about: Paxos In his scientific article The Part-Time Parliament, Leslie Lamport created his Paxos algorithm for distributed voting, inventing a Greek … Jetzt lesen »

27th Meeting: (December) Apache Hadoop 2 – The next big step for Big Data

The next meeting will take place on 04.12.2013 and start from 7.00 pm onwards, Uwe Seiler will talk about: Apache Hadoop 2 – The next big step for Big Data You can find the slide here.

26th Meeting (November): Graphs, Databases and what we can use them for

  The next meeting will take place at 06.11.2013 and start at 7.00 pm   Michael Hackstein will talk about: Graphs, Databases and what we can use them for   Abstract: The topic of this talk is all about graphs … Jetzt lesen »

25th Meeting (October): Java Persistenz-Frameworks für MongoDB

On 2nd of October and Tobias Trelle (codecentric AG) talked about: Morphia, Spring Data & Co. – Java Persistenz – Frameworks für MongoDB   Here are the slights of Tobia’s talk:   Morphia, Spring Data & Co. from Tobias Trelle

24th Meeting (September): Datomic / NoSQL web apps

24th meeting on 04.09.2013 at 07:30 pm (1) Introduction to Datomic by Tayssir John Gabbour   Content: live demo (with audience participation) big ideas little details (which aren’t obvious when reading the website) Q&A View the Datomic slides.   (2) NoSQL … Jetzt lesen »

23th Meeting (August): Yokozuna – combining Riak and Solr

On our August meeting Richard Shaw from Basho talked about  Yokozuna, combining Solr with Riak. Abstract: Solr is a well-established search technology in the JVM software space, providing scalable and highly-reliable search indexing for many of the world’s largest internet … Jetzt lesen »

(Deutsch) 3. Sep. 2013: GFU-Vortrag: Die Qual der Wahl – nicht-relationale Datenbanken im Überblick

Sorry, this entry is only available in Deutsch.

22th Meeting (July): Sharding Strategies

On 3rd of July the 22th meeting of the NoSQL User Group Cologne took place in the new rooms of triAGENS. Martin Schönert talked about sharding strategies in distributed NoSQL databases.   Watch the video:

21st Meeting (March): Elastic Search

Jörg Prante talked about Elastic Search. ElasticSearch is a distributed, RESTful, free/open source search server based on Apache Lucene. It is developed by Shay Banon and is released under the terms of the Apache License. ElasticSearch is developed in Java. … Jetzt lesen »

20th Meeting (February): Google Spanner

At the 20th meeting of the NoSQL Group Cologne Martin Schönert talked about Google Spanner. Much like the engineering team that created it, Spanner is something that stretches across the globe while behaving as if it’s all in one place. … Jetzt lesen »

19th Meeting (January): CouchBase Server 2.0

Abstract: Getting Started with Couchbase Server 2.0 In this presentation Tug, will present the latest release of Couchbase Server. Couchbase Server 2.0 transforms Couchbase Server into a document database with the addition of JSON support, indexing and querying, and cross … Jetzt lesen »

18th Meeting (December): Richard Parker “Full text search”

In the November meeting Richard Parker talked about Full Text Search.   Watch the video:  

17th Meeting (November): Column databases

Jan Steeman gave an overview about the functionality of Column Databases.   Introduction to column oriented databases from arangodb

16th Meeting (October): DataMapper vs ActiveRecord

Lucas: DataMapper oder ActiveRecord Comparison between the DataMapper and the ActiveRecord pattern. When choosing a persistence strategy, the first decision you need to make is where to place the responsibility for carrying out the mapping. You have two very different … Jetzt lesen »

15th Meeting (September): Modelling data in a schema-free world? / Cascalog

Jan: Modelling data in a schema-free world? Even though most NoSQL databases follow the “schema-free” data paradigma, it is still import to choose the right data model to make the best of the underlying database technology. This talk provides an … Jetzt lesen »

14th Meeting (August): High Performance Computing / Hadoop

1. August 2012 – High Performance Computing / Eine kurze Einführung in Haadoop. At the 14th meeting of the NoSQL Group Cologne Martin Schönert gave a short introduction into Hadoop.   Watch the video:     And RIchard Parker talked … Jetzt lesen »

13th Meeting (July): Barbecue

Sorry, this entry is only available in Deutsch.

13. Treffen: Grillfest am 4.7.2012

Am 4.7. wurde gegrillt – und zwar zusammen mit der German Unix User Group in der Bachemer Str. 12 in Köln (Nähe Aachener Weiher).

12th Meeting (July): A Gentle Introduction to Redis Internals

At the 12th meeting on 6th of June Tim Becker gave an Introduction into Redia and we looked into the C-Courcen of Redis. &nbsp Watch the video:  

11. Treffen (May): Redis & Map/Reduce

Am 2. Mai hat ruby & Node.js Entwickler Sebastian Cohnen beim 11. Treffen unserer User-Group einen Vortrag über Redis gehalten. Rund 30 Teilnehmern erklärte er, wie die NoSQL Datenbank Informationen verteilt und intern verwaltet. Hier haben wir seinen Vortrag als … Jetzt lesen »

10. Treffen (April): AvocadoDB & Query Languages

10th meeting: AvocadoDB & query languages (SQL, UNQL, Cypher, Fluent) – Crazy or not? SQL for a NoSQL DB? Martin Schönert presented AvocadoDB – a new universal and open source NoSQL database targeted at established companies and start ups.   … Jetzt lesen »

9. Treffen (March): SSD & Performance

9. Treffen am 07.03.2012, 19:00 Uhr Thema: Bis zu 100-fach mehr Performance durch SSD bei CouchDB & Co – Mythos oder Wahrheit?   Ein klassisches NoSQL-Thema war es diesmal nicht. Und trotzdem war es mal wieder hochinteressant! Martin Schönert beim … Jetzt lesen »

8. Treffen (February): Riak II

Am 01. Februar kam der Riak-Experte Mathias Meyer extra aus Berlin, um der User Group die verschiedenen Riak-Abfragemöglichkeiten näher zu bringen. Seinen Vortrag gibt es hier auch als Video-Podcast.   Dabei ging Mathias auf Key/Value ein und beschrieb Techniken, wie … Jetzt lesen »

7. Treffen (January): Riak

Direkt zum Jahresbeginn ging es mit einem spannenden Vortrag zu einem bekannten NoSQL-System weiter und Sebastian berichtete am 04. Januar 2012 über Riak. Sein Vortrag mit dem Titel “An 10,000’ overview of a Dynamo-style KV-Store” kann hier als ePaper aufgerufen … Jetzt lesen »

6. Treffen (December): GeoIndizes & RavenDB

Im Dezember 2011 lud die NoSQL User Group Cologne zu zwei spannenden Vorträgen aus unterschiedlichen Themengebieten ein. Zunächst präsentierte Sergey in einer Demosession die Funktionsweise der RavenDB, einer Open-Source-DB auf Basis der .NET-Plattform. Neben den Grundlagen des Systems stellte er … Jetzt lesen »

5. Treffen (November): CouchDB & Dynamo

Zum fünften Mal traf sich am 02.11.2011 mitten in den Herbstferien die Kölner NoSql-Gruppe. Vor 25 Personen stellte Martin Schönert Dynamo und Sebastian Cohnen CouchDB vor. Dynamo ist eine von Amazon entwickelte und eingesetzte Hochleistungsdatenbank. Sie ist darauf ausgelegt, sehr … Jetzt lesen »

4. Treffen (October): MongoDB mit Marc Boeker

Am 5. Oktober fand das vierte Treffen der NoSQL User Group in Köln statt. Um über MongoDB zu berichten, war Marc Boeker, Autor des Buches “MongoDB – Sag ja zu NoSQL”, extra von Stuttgart nach Köln gereist. Die Fahrt hat … Jetzt lesen »

3rd Meeting (September): MySQL goes NoSQL / The Case for Determinism in Database Systems

Am 07. September 2011 trafen sich Interessierte zum dritten Mal in Köln, um über Themen rund um NoSQL zu diskutieren. Per Online-Abstimmung fiel die Wahl auf einen Vortrag zum Thema “MySQL goes NoSQL” sowie eine Diskussion des Papers “The Case … Jetzt lesen »

2nd Meeting (August): Treffen – REST und MongoDB

Mitten in den Sommerferien, am 03. August 2011 fand das zweite Treffen der NoSQL Group Cologne statt. Trotz der Ferienzeit trafen sich knapp 30 NoSQL-User und hörten interessiert den Vorträgen von Arkadiusz Czarnik und Nils Domrose zu ... Jetzt lesen »

1. Treffen der NoSQL User Group

Am 06.07.2011 trafen sich in Köln erstmalig rund 20 NoSQL-Interessierte, um sich über das Thema intensiv auszutauschen. Während einer kurzen Vorstellungsrunde stellte sich heraus, dass sich die Teilnehmer mit den beschäftigen. Es versammelten ... Jetzt lesen »