nStore:

A simple in-process key/value document store for node.js. nStore uses a safe append-only data format for quick inserts, updates, and deletes. Also a index of all documents and their exact location on the disk is stored in in memory for fast reads of any document. This append-only file format means that you can do online backups of the datastore using simple tools like rsync. The file is always in a consistent state.

nStore can be found on ☞ GitHub

Juan Maiz: Connecting to MongoHq with Haskell ¶

Looks like today we’ll have some geeky stuff:

This connects, logs in, inserts and then retrieves a document in a collection.

ksankar: A path through a NOSQLSummer Reading ¶

In case you have troubles picking up the first NOSQL summer paper, you mind find this classification useful. As a side note, Bucharest was the first city organizing the event and we had quite some fun discussing freely about the CAP Theorem.

vonconrad: Which of CouchDB or MongoDB suits my needs? ¶

Anyone willing to help him out? The presented scenario is quite interesting and definitely a good fit for document databases.

MongoDB driver for Delphi: pebongo ¶

I don’t think I know anyone doing Delphi programming, but why not posting about it since I’ve already covered other “geeky” stuff like Smalltalk and CouchDB or Using Google V8 with MongoDB

Terrastore Clojure client API: terrastore-cloj ¶

A Clojure client for Terrastore document store coming in two flavors: chainable and bookmarkable.

A poll on ☞ Hacker News asking about what database does your startup use. The results at the time of this post show over 700 votes and MySQL and PostgreSQL leading. Anyways, NoSQL solutions like MongoDB, Cassandra, CouchDB, Redis are mentioned too.

1. Richard Boulton: ☞ Using Redis as a backend for Xapian. An interesting analysis of how a dedicated search engine would work with a Redis backend. Meanwhile others try to simply store the reverted index into Redis¶
2. Paul Rosania: ☞ Point-and-Click install of MongoDB on OS X 10.5+. Not that it was difficult before, but nice to have! ¶
3. Doug Judd: ☞ Why We Started Hypertable, Inc. … or welcome to the Hypertable Inc. blog. ¶
4. Surya Surabarapu: ☞ Terrastore Scala Client. First Terrastore library in our NoSQL libraries list ¶

1. Firstly a very nice trick from Christian: ☞ Couch Potato Bookmarklet - Lazy Features for CouchDB’s Futon: a bookmarklet for bulk deleting CouchDB documents

   So, I created the CouchDB Potato Bookmarklet (because I’m lazy). The bookmarklet creates a new delete column and provides a “Delete Documents” link to delete all the checked documents. I also added a “Select All Documents” which only selects non-design documents (so that I don’t accidentally delete a CouchDB view). These links can be found in the right navigation column under the “Recent Databases” section.

2. Embedded below is a video of J. Chris Anderson talking about CouchDB @ E-VAN

   J. Chris Anderson on CouchDB @ E-VAN 26 May 2010 from europevan on Vimeo.

3. Couchio has announced a very interesting event CouchCamp and we added it to our new NoSQL events page.

4. Last, (my) internet has been “spammed” by tons of redirects to the article ☞ CouchDB Moves to the Cloud with Couchio. According to the article:

   “We’ll be including Apache Lucene full-text indexing,” Katz said. “That’s an add-on for CouchDB that people usually have to download and build themselves.”

1. Jake Luciani: ☞ I killed Thrudb for the love of Cassandra. Healthy reaction for the NoSQL community! ¶

   So what’s the message here? In 2007 there were very few nosql dbs. Today there are way too many of them. It’s time to consolidate around the best of breed. I can do my part by killing off Thrudb.

2. awksedgreep: ☞ NoSQL, a DBAs Perspective. Another healthy reaction, this time from a DBA appreciating NoSQL solutions. ¶

   In order to summarize this post I’ll just start with this. We will shortly have Redis deployed in our production environment. I can’t really tell you how happy this makes me.

   As a DBA, and more importantly an “Open Source DBA”, I find many of the new NoSQL options intriguing.

1. Redis 2.0RC1 is out. You can download it from ☞ here and review the very long list of changes ☞ here¶
2. And because it is Friday we can have some fun with the CouchDB team’s rap song: ¶

   Now if you think as @jpmens:

   CouchDB needs very serious work on advertising; the sequel video is almost worse than the song. #fail

   myNoSQL can help you with both the advertising and community ;-)!

3. ☞ Hummingbird: a MongoDB-based real time web traffic visualization tool available on ☞ GitHub. ¶

   And a presentation of Hummingbird

4. ☞ Smart Notes 2 Couch: is an open source free tool to migrate your Lotus Domino data to CouchDB. ¶

• Running CouchDB on the Android powered Motorola Droid ¶
• ☞ Riakfuse: Filesystem backed by Riak. Cool! ¶

The 2nd day at nosql:eu is over. It is time to review the great twits from the 1st day, the slides from the 1st day presentations and the great twits below.

For those of us that haven’t made it to ☞ nosql:eu conference I’ve extracted below some (hopefully most) of the most interesting twits from the conference. I’ve also post slides of the presentations as these are coming.

nosql:eu quotes

Check also the best twits from 1st day @ nosql:eu

• kevinweil: Modifying my talk in realtime for #nosqleu. Adding Cassandra, HBase, FlockDB to already existing discussion of Scribe, Hadoop, Pig.
• emileifrem: Cassandra is simply the best in its category. Check out @spyced’s latest deck: http://bit.ly/8ZgaDh #nosql #nosqleu
• maslett: RT @natishalom: @maslett with the planned support for memcache - gigaspaces turns memcache to a real NoSQL alternative IMO #nosqleu

  Note: personally I’d find that quite confusing. If Gigaspaces is not anymore an elastic cache, then what is it?

• danharvey: #nosqleu question for today: how do you backup casandra / HBase for user/dev errors? The failure back up is built in.
• Werner: Arrived at #nosqleu for the first presentation of the day.
• awhitehouse: @werner We should challenge assumptions that DB partitioning papers make; sometimes smallest possibilities are treated as reality. #nosqleu
• AndySeaborn: #nosqleu ☞ http://www.mcjones.org/System_R/SQL_Reunion_95/sqlr95.html
• awhitehouse: @werner: We should all read “The 1995 SQL Reunion: People, Project, and Politics” ☞ http://www.mcjones.org/System_R/SQL_Reunion_95/index.html #nosqleu
• AndySeaborne: #nosqleu ☞ http://www.hpl.hp.com/techreports/Compaq-DEC/SRC-TN-1997-018.pdf
• tlossen: “in real systems, there are no corners to cut” — werner vogels about the importance of occam’s razor in systems design #nosqleu
• hungryblank: RT @tlossen: “in real systems, there are no corners to cut” — werner vogels about the importance of occam’s razor in systems design #nosqleu
• matwall: @Werner #nosqleu nosql is about choice, not a fight between SQL and new tech.
• tlossen: “you should all read the multics book” — werner vogels #nosqleu
• martinbtt: #nosqleu @Werner “on the birth of dynamo”
  
• tlossen: “real systems are pretty nasty things” — werner vogels #nosqleu
• tlossen: “scaling amazon was all about the database, every year scaling out, scaling out ….” — werner vogels #nosqleu
• tlossen: “scalability, availability, performance, cost-effectiveness are all in the end dominated by data management” — werner vogels #nosqleu
• martinbtt: “The Amazon homepage is constructed by 200-300 different web services”. #Werner #soa #nosqleu
• maslett: Amazon CTO @werner: “It all comes down to data management… that’s where the scalability is… that’s where most of the costs are” #nosqleu
• tlossen: “i HATE eventual consistenty” — werner vogels #nosqleu
• maslett: .@werner: “What we all want is strongly consistent systems - this eventual consistency stuff is a compromise.” #nosqleu
• tlossen: “your customers will ALWAYS use your system in a way you did not expect” — werner vogels #nosqleu #dynamo
• mfiguiere: #nosqleu Werner Vogels: “Customer put something in the shopping cart, they are about to give you money, that should ALWAYS works !”
• monkchips: “In 2004 we felt we could no longer rely on commercial [relational] systems to operate at Amazon scale”. @werner vogels Amazon CTO, #nosqleu
• buzzkills: “there were no comercial systems that could support amaon’s scale” [for many of their use cases] @Werner #nosqleu
• tlossen: “at scale, ALL of this shit happens” — werner vogels on datacenter SNAFUs like flooding from the roof down etc. #nosqleu
• tlossen: “scaling amazon = upgrading cessna to 747 in mid-flight” — werner vogels #nosqleu
• tlossen: “object storage is FOREVER” — werner vogels on data outliving software #nosqleu
• tlossen: “don’t forget, hardward LIES to you!” — werner vogels #nosqleu
• awhitehouse: @werner: “Economies of scale are mostly about people” (and the knowledge they need to run your system) #nosqleu
• tlossen: “we really have to dive deep and understand all the problems from top to bottom” - werner vogels on INTELLECTUAL economies of scale #nosqleu
• beobal: “economies of scale are not just about technologies, it has a lot to do with people” @werner #nosqleu
• tlossen: “transparency is EVIL” — werner vogels about NFS etc. #nosqleu
• tlossen: “remember that storage is a very long-lasting relationship” — werner vogels #nosqleu
• maslett: .@werner: “We shouldn’t all be doing this.” #nosqleu Companies should be focused on their business, not their databases.
• simonw: Werner Vogels: “S3 is a better key/value store than Dynamo” (due to list/prefix operators) #nosqleu
• tlossen: “if you keep your system simple, it drives simplicity at the customer side as well” — werner vogels on importance of occam’s razor #nosqleu
• awhitehouse: “Simplicity needs to happen at the interface” … the API to your system drives the architecture @werner at #nosqleu
• seanparsons : @Werner’s talk at #nosqleu was illuminating about the focus on managing interaction between systems.
• CooperDino : WernerVogels at #NoSQLeu: When u do trillions of ops per day even the slightest probability becomes reality
• martinbtt : Fantastic talk by @Werner at #nosqleu - loads of useful tech nuggets to take away. Great start to the day so far.
• CooperDino : WernerVogels at #NoSQLeu: Bruce Lindsay & Jim Gray are our heroes, we should all read about their data sys work in the 70s
• CooperDino : @Werner at #NoSQLeu: Last time Amazon was down was 2004 & it was related to an RDB crashing
• CooperDino : @Werner at #NoSQLeu: 70% of storage operations in Amazon are key/value
• CooperDino : WernerVogels at #NoSQLeu: If u have2 jump thru lots of hoops 2use any DB then it prob wrong choice. #JOOB is fresh choice4 #dotNet
• CooperDino : @Werner at #NoSQLeu: Customers will not look at a DB in isolation, they will always look at where it sits in big picture
• matwall : Head buzzing from inspiring talk from @werner at #nosqleu
• monkchips : now @kevinweil (twitter’s analytics lead) presents via skype video… just showed us some very dark twitter offices ;-) #nosqleu
• awhitehouse : Big hand to @kevinweil for giving his talk from Twitter HQ at 3am local time. #nosqleu
• matwall : @kevinweil say twitter increase userbase by 300K per day, generate 7Tb of data *per day* #nosqleu
• buzzkills : Twitter gave up on syslog because it didn’t scale #nosqleu
• thobe : This is me contributing to the 300GB of twitter data generated while @kevinweil talk about it on #nosqleu
• tlossen : “you write log lines — scribe does the rest” — kevin weill about logging at scale #nosqleu
• buzzkills : @buzzkills apparently faceyb wrote scribe, Twitter are big contris #nosqleu (thx to @ianmeyers for correction)
• matwall : @kevinweil from Twitter describing their Scribe -> Hadoop -> Pig pipeline for data alanysis at #nosqleu Very interesting, I want one.
• tlossen : “want less java in your life? use pig!” — kevin weill, giving advice on hadoop #nosqleu
• matwall : @kevinweill on datamining user data: It’s easy to answer questions, it’s hard to ask the right questions. #nosqleu
• wwwicked : Loving the simplicity of a Pig script versus the equivalent Hadoop/Java code #nosqleu
• beobal : “value the system that promotes innovation, iteration” @kevinweil #nosqleu
• monkchips : facebook’s scribe at master - GitHub ☞ http://github.com/facebook/scribe a logging system for client performance data, also used by twitter. #nosqleu
• awhitehouse : @kevinweil: Twitter does most of its data analysis in Pig - scripts can call user-defined functions coded in Java (v. powerful) #nosqleu
• matwall : Twitter using Apache Mahout coupled with Pig for machine learning when examining user behaviour #nosqleu
• andrewgarner : Totally sold on Pig #nosqleu
• wwwicked : A friend of mine said “NoSQL is retarded”. The more I’ve heard over the past 2 days, more more I realise he’s wildly wrong #nosqleu
• emileifrem : @wwwicked Term is retarded. Notion all RDBMSes will be replaced is retarded. That we’re heading to a polyglot persistence era isnt. #nosqleu
• monkchips : “we’re trying to move all tweets to Cassandra”. @kevinweil Twitter #nosqleu

  Note: You can read the whole story in myNoSQL exclusive Cassandra @ Twitter: And interview with Ryan King

• tlossen : “better eventual consistency than POTENTIAL consistency” — kevin weil on reasons to use cassandra at twitter #nosqleu
• maslett : Twitter is working with Digg to create real-time analytics for Cassandra. Plans to open source. #nosqleu
• msk_y : RT @buzzkills: Twitter store their log files in Lzo compressed, protocol buffers format on hdfs #nosqleu
• kingsleydavies : #nosqleu CouchDB used at BBC - typically used as a KVS and is used in iPlayer and parts of the homepage…
• tlossen : “you can throw rocks and stones at it, and it just keeps going” — enda farrell (bbc) about robustness of couchdb #nosqleu
• matwall : @endafarrell CouchDb restarts in < 1sec. Occasionally restart in production as restarts are far less than TCP timeout! #nosqleu
• tlossen : enda farrell shared a neat idea: “pre-sharding” — running 4 instances of couchdb on every node [couchdb @ bbc talk] #nosqleu
• matwall : @endafarrell “Having things that just work and are simple from the users perspective is brilliant” #nosqleu
• CooperDino : #NoSQLeu: BBC web site handles 200m requests per day on 1.5TB of data using 8 servers & #CouchDB
• monkchips : exciting! presentation at #nosqleu from Comcast chief engineer @jon_moore : Why Big Enterprises Are Interested in NoSQL
• matwall : Agree with @jon_moore at #nosqleu : storage is a means to a business end, nosql contains intrinsic risk
• benoitc : idealized api of comcast looks like the #couchdb one get,post, get _views #nosqleu
• matwall : @jon_moore at #nosqleu Can I add more capacity without adding too many more sysadmins? Can my admins work 9-5?
• matwall : @jon_moore at #nosqleu Is there a company behind product to provide operational support? Important for commoditization
• monkchips : surprising requirement of the #nosqleu conference. NoSQL providers take note: Enterprises expect JMX support. java ain’t dead. devops?
• wwwicked : #nosqleu @jon_moore made a fair point re: my comment about analytics on KV stores; may not be best idea but “they” will want to do it anyway
• timanglade : Totally awesome break-down of the CAP theorem (in the context of Multiple Datacenters) by the amazing @jon_moore. Refreshingly enlightening.
• kingsleydavies : loving the name *Tokyo Tyrant* and a great, upbeat start to @makoto_inoue preso… #nosqleu
• matwall : @makato_inoue Says that @al3xandu’s site myNoSL is like “Hello magazine for nosql” :) #nosqleu
• matwall : Can we have a 3 hour workshop with @makato_inoue please? He’s great! #nosqleu
• kingsleydavies : +1 yeah… I fear we wont have enough time :-( RT @matwall: Can we have a 3 hour workshop with @makato_inoue please? He’s great! #nosqleu
• maslett : great presentation on the highly random world of Tokyo Cabinet/Tyrant by @makoto_inoue #nosqleu
• maslett : Quote of the day: “myNoSQL is the Hello magazine of NoSQL” #nosqleu
• michaeltiberg : #nosqleu conference is to an end - attendees seems to be satisfied and that makes my day

Check also the best twits from 1st day @ nosql:eu

nosql:eu presentations

Check also the nosql:eu presentations from 1st day

On the Birth of Dynamo - Werner Vogels

Nothing here yet :-(.

Twitter’s use of Cassandra, Pig and HBase - Kevin Weil

Slides from Kevin Weil (@kevinweil) presentation on Twitter’s use of Cassandra, Pig and HBase

CouchDB at the BBC - Enda Farrell

Nothing here yet :(

Why Big Enterprises are Interested in NoSQL - Jon Moore

Slides from Jon Moore (@jon_moore) presentation: Why Big Enterprises are Interested in NoSQL

Memory as the New Disk: Why Redis Rocks - Tim Lossen

Slides from Tim Lossen (@tlossen): Memory as the New Disk: Why Redis Rocks

Tokyo Cabinet, Tokyo Tyrant and Kyoto Cabinet - Makoto Inoue

Nothing here yet :(

Notes from the field: NoSQL tools in Production - Matthew Ford

Slides from Matthew Ford (@matthewcford) Notes from the field: NoSQL tools in Production presentation

nosql:eu live twitter stream

Check also the nosql:eu presentations from 1st day

According to the latest news from ☞ nosql:eu — in case you didn’t make it you can still follow the nosql:eu live twitter feed — Jonathan Ellis (@spyced), project chair for Cassandra, ex-Rackspace, has started a company named ☞ Riptano to focus on Cassandra. While I don’t have yet details of Riptano’s plans (services, development, Cassandra-as-a-Service, etc), I’m wishing Jonathan and Matt good luck!

Update: According to Matt Pfeil, Riptano will initially focus on 3 products: technical support, professional services, and training.

CNET has published recently ☞ an interview with Matt.

In case you’ve missed the ☞ nosql:eu conference, you can find below the most interesting nosql:eu twits and some of the nosql:eu presentations. And make sure to check nosql:eu second day.

nosql:eu quotes

Check also the best twits from nosql:eu 2nd day

• emileifrem: Very envious of the crowd that’s just about to roll into the @nosqleu venue. VolcaNoSQL has been rough, but it will still be a kickass show.
• al3xandru: Make your twits through the ash cloud #nosqleu so those stopped by the #VolcaNoSQL can hear something too
• nosqleu: All the equipment is set, the remote presentation setup has been tested and attendees are already pouring in. Let’s go — wish us luck!
• jystewart: wow! @werner managed to get on an iceland-glasgow flight and so will make it to #nosqleu against all the odds
• wwwicked: Guardian.co.uk used Redis for analysis of leaked BNP membership list - mapping postcodes to constituencies #nosqleu
• wwwicked: Guardian used a traditional RDBMS for first MPs expenses crowd-sourced review app; “possibly the worst possible implementation” #nosqleu

  Note: we’ve published a post on this topic Redis Usecase: replacing MySQL order by rand()

• monkchips : Guardian Zeitgeist. “We use Big Table as a dumping ground for data you can sort by 1 or 2 columns when you need to” @simonw @nosqleu #nosql
• zacksm: “spreadsheets are NoSQL too…” #nosqleu
• kingsleydavies: use of #AppEngine and #BigTable w/ scatter/gather and shards at the guardian + GOOG sprdshts for rapid prototyping and releases.. #nosqleu
• monkchips : “there is a form of NoSQL we have been using for years - spreadsheets”. says @simonw. #pragmatism #NoSQL #NoSQLeu
• klbostee :The Guardian’s web architecture as shown at #nosqleu
  
• matshenricson :Total total kick-ass presentation by two guys at guardian.co.uk ! The future of journalism, from a developer point of view. #nosqleu
• monkchips : one of the best tech talks i have ever seen. @simonw and @matwal explained exactly how NoSQL supports the Guardian’s *business*. #nosqleu
• philb0: You need to understand your DB query patterns before choosing a technology #nosqleu

  Note: last time I wrote about it was yesterday in considering data stores post.

• awhitehouse: Use the right tool for the job » @timanglade at #nosqleu: “Let’s not hack a RDBMS to do a graph, let’s use a real graph database”
• wwwicked: NoSQL sucks! It’s true… if you use it badly; e.g. don’t try analytics on a key-value store. #nosqleu
• kingsleydavies: flagrant promotion ;-) #nosqleu 1 stop shop for NoSQL links and info…
• ianmeyers : #nosqleu Wondering how many people have approached NOSQL from the perspective of NOT being anti-SQL?
• mfiguiere: #nosqleu Le NoSQL n’est pas une question de volume de données, mais de représentation de données

  (trans): #nosqleu NoSQL is not a matter of volume of data, but data representation

• wwwicked: “I am terrified of the uber database that is yet to come” - @matwall urges us to think Unix not Windows re: task/use-specific DBs #nosqleu
• coderholic: Great morning so far at #nosqleu including spreadsheet backed websites from the guardian!
• kingsleydavies: #nosqleu actually, some of the benefits of a choppy preso transmission, is I heard *enough* to want to chase up independantly
• kingsleydavies: Key featr’s of #Riak: links, map-reduce, vctr clocks directly impl; dynmo conflict res; distrbtd, auto-scales (on the fly), durable #nosqleu
• awhitehouse: awhitehouse Distributed key stores would benefit from better management tools (e.g. SNMP-based) - @hobbyist’s team looking at this. #nosqleu
• benoitc: @mongodb definition by comparing itself to @CouchDB … #nosqleu
• kingsleydavies: #nosqleu document oriented datastores sounds pretty much like ‘the new’ object DB to me ?
• benoitc: for those in #nosqleu who have questions about #couchdb dont hesitate to ask me or to @endafarrell
• matwall: MongoDB looking fantastic. I want one now! How best to pick from couch or mongo? #nosqleu
• ck1125: wishing i booked a place to #nosqleu
• buzzkills: Mongodb supports geolocation queries #nosqleu
• kjlloydie: MongoDB looks really useful. Would love to see performance metrics for large datasets. #nosqleu
• matwall: Wow. MongoDb features geo-location also. Beautiful query syntax in the python examples. #nosqleu
• coderholic: The geo features of mongodb look very cool #nosqleu
• wwwicked: MongoDB has quite a sexy update syntax. Geolocation features are nice, too. #nosqleu
• buzzkills: Mongodb makes it easy to send deltas to your documents. Increase values, push values into arrays etc #nosqleu

  Note: it’s quite interesting to see that from tons of features, people got excited about geo support which was added only in the last MongoDB 1.4 release

• wwwicked: Quite a hard sell by the MongoDB guy though. Far more so than the Riak guy #nosqleu
• buzzkills: Mongodb prez is much more about what it does rather than how it does it, I think I would have prefered the latter. #nosqleu
• jystewart: liking the look of mongodb’s geo features. not surprised @foursquare are using them #nosqleu
• PaulDJohnston: #nosqleu I’m getting confused about when to use specific types of database… don’t just say “use mine” but “use mine for *this*”
• mfiguiere:#nosqleu La plus large base MongoDB installée en production : 12 To sur une seule instance !

  Note: never heard of this MongoDB size before, so I’m wondering if the project is secret!

• awhitehouse: Jonathan Ellis aka @spyced has just started a company called Riptano based around Cassandra #nosqleu

  Breaking: Riptano - First company focused on Cassandra started by Cassandra project chair, Jonathan Ellis

• matwall: I wonder how cassandra knows which machines are in each rack? #nosqleu
• mfiguiere: #nosqleu if your software wakes people up at 4 am to fix it, then you’re probably doing things wrong…
• monkchips: Cassandra uses JMX? blimey. didn’t expect to hear that acronym today. “like most things in Java its quite clunky”. #cassandra #nosqleu
• matwall: Feel like we’re watching the battle of the low end data structures at the mo. How does it help my business? #nosqleu
• buzzkills: Good to hear digg are contributing a vector clock implementation to cassandra for the next version #nosqleu

  Note: Digg announced quite a few more goodies to be added to Cassandra. Some of them have already been included in the Cassandra 0.6.0 release

• awhitehouse: @monkchips asked “what use cases does Cassandra cover?” - @spyced ref’d to this talk http://bit.ly/blGDbF [“RDBMS’s don’t scale”] #nosqleu

  Note: Link to What every developer should know about database scalability presentation.

• monkchips one of the most useful insights about “why NoSQL?” so far today. “data is more and more semi-structured” #nosqleu #neo4j
• wwwicked Oh! Graph databases are nothing like what I pictured. No pun intended. #nosqleu
• matwall Good examples of possible usages of Neo4j explained well. #nosqleu
• kingsleydavies #nosqleu watching @thobe present on #neo4j graph DB. can already think og at least 1 use case to trial this.. great to see use cases in pres
• kevinweil Looking forward to giving my #nosqleu talk remotely from TwitterHQ at 3am (11am London time) this morning
• maslett #nosqleu phrase of the day: choose the best solution/tool/storage model for the job. There might be something in “Not Only SQL” after all
• NeilRobbins For me the best talks of the day were the Cassandra & Riak talks, though thanks to the better quality audio the Cassandra talk wins #nosqleu
• tom_wilkie #nosqleu good day. Guardian talk the best IMHO

Check also the best twits from nosql:eu 2nd day

nosql:eu presentations

Check also the nosql:eu presentations from 2nd day

NoSql at guardian.co.uk - Matthew Wall & Simon Willison

Slides from Matthew Wall (@matwall) & Simon Willison (@simonw) on NoSQL usage at guardian.co.uk

An Overview of NoSQL - Tim Anglade

Slides from Tim Anglade (@timanglade) An Overview of NoSQL

Key-value stores and Riak - Bryan Fink

Nothing here yet :(.

Document-oriented databases and MongoDB - Mathias Stearn

Slides from Mathias Stearn (remote) presentation on document-oriented databases and MongoDB

Column-oriented databases and Cassandra - Jonathan Ellis

Slides from Jonathan Ellis (@spyced) presentation on column-oriented databases and Cassandra:

Graph databases and Neo4j - Tobias Ivarsson

Slides from Tobias Ivarsson (@thobe) presentation on graph databases and Neo4j

Check also the nosql:eu presentations from 2nd day