NoSQL: Happy New Year SQLers and NoSQLers

Happy New Year SQLers and NoSQLers

Just want to wish all readers and friends I've made over here a great and exciting 2011. Happy New Year!

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NoSQL: NoSQL Comparison: Cassandra, CouchDB, HBase, MongoDB, Redis, Riak

NoSQL Comparison: Cassandra, CouchDB, HBase, MongoDB, Redis, Riak

Just before the end of year, a brief comparison — bullet style — of Cassandra, CouchDB, HBase, MongoDB, Redis, and Riak:

tags:MongoDB,CouchDB,HBase,Redis,Riak

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NoSQL: Kafka: LinkedIn's Distributed Publish/Subscribe Messaging System

Kafka: LinkedIn's Distributed Publish/Subscribe Messaging System

Another open source project from LinkedIn:

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NoSQL: What is Big Data Used for

What is Big Data Used for

Philipp Janert [ 1 ] :

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NoSQL: Polyglot Persistence

Polyglot Persistence

Emil Eifrem [ 1 ] :

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NoSQL: Mashable Predictions: NoSQL Technologies Will Stake Their Ground

Mashable Predictions: NoSQL Technologies Will Stake Their Ground

NoSQL technologies have had some high-profile hiccups this year (remember that MongoDB/Foursquare disaster? 1 ), but we've been assured that what doesn't kill NoSQL only makes it stronger and more stable.

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NoSQL: Seasonal Greetings and Thanks to NoSQL community

Seasonal Greetings and Thanks to NoSQL community

It's been a bit over an year since the first post here and I've finally decided to take a short break and enjoy offline this period of the year with my family.

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NoSQL: Redis New Home: redis.io

Redis New Home: redis.io

Redis just got a new home — not talking about VMWare though, just a new website: ☞ redis.io .

tags:Redis

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NoSQL: MongoDB Replica Sets and Sharding Question List

MongoDB Replica Sets and Sharding Question List

I'm seeing many questions asked [ 1 ] about MongoDB replication and sharding, so I thought it might be an idea to try to gather the most interesting ones and submit them to the MongoDB/10gen people to get some answers. So, after reading the documentation on MongoDB replica sets [ 2 ] and MongoDB sharding [ 3 ] , what questions would you want answered?

tags:MongoDB

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NoSQL: NoSQL Resources

NoSQL Resources

I was forwarded a LinkedIn question asking about NoSQL groups, NoSQL forums, and NoSQL blogs, or simply put places where NoSQL folks are hanging or sites that are tracking the NoSQL movement. So, here is my short list:

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NoSQL: CouchDB Use Case: Create offline web applications on mobile and stationary devices

CouchDB Use Case: Create offline web applications on mobile and stationary devices

A short tutorial on how to build synchronized apps allowing offline operations using CouchDB:

tags:CouchDB

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NoSQL: Notes on CouchDB: Sitting on the couch

Notes on CouchDB: Sitting on the couch

This article described my experience with CouchDB during an university project, after having worked only with relational databases for years. […] This experience has been a spike: it is not test-driven, and will be thrown away once the project is finished. It is incremental, tough, since this is an effective way to learn a new technology.

tags:CouchDB

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NoSQL: Being Awesome with the MongoDB Ruby Driver

Being Awesome with the MongoDB Ruby Driver

Just the basics of MongoDB with Ruby:

tags:MongoDB

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NoSQL: Pacer: Gremlin with Ruby Flavor

Pacer: Gremlin with Ruby Flavor

Sounds like ☞ Gremlin with Ruby's syntactic sugar:

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NoSQL: HomeFinder.com Using MongoDB

HomeFinder.com Using MongoDB

No further details other than a tweet from Jonathan Suchland [ 1 ] :

tags:MongoDB

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NoSQL: Clustrix Developer of NoSQL key-value stores

Clustrix Developer of NoSQL key-value stores

Clustrix, a developer of NoSQL key-value stores with the robust relational database functionality, immediate transactional consistency, and seamless deployment of SQL,

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NoSQL: Redis Cluster Explained

Redis Cluster Explained

For Redis users, it shouldn't be a surprise that Salvatore Sanfilippo ( @antirez ) has been working on Redis clustering lately. In the videos embedded below, Salvatore explains the details of Redis clustering .

tags:redis

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NoSQL: CouchDB Usecase: Decentralizing Twitter

CouchDB Usecase: Decentralizing Twitter

J.Chris Anderson in an interview over ReadWriteWeb:

tags:CouchDB

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NoSQL: Lucene and Solr Development Merged

Lucene and Solr Development Merged

Full text indexing in NoSQL databases has been addressed so far only by Riak search , the others relying on integrations with Lucene, Solr, or ElasticSearch.

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NoSQL: NoSQL Databases Genealogy

NoSQL Databases Genealogy

Via @himazu :

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NoSQL: CouchDB Web Caching: Cache-Control Headers

CouchDB Web Caching: Cache-Control Headers

Good question on CouchDB mailing list related to CouchDB caching :

tags:CouchDB

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NoSQL: Deferring Processing Updates to Increase HBase Write Performance

Deferring Processing Updates to Increase HBase Write Performance

Alex Baranau:

tags:HBase

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NoSQL: Now official: Spring Data Riak Support Reaches Milestone 1

Now official: Spring Data Riak Support Reaches Milestone 1

Shortly after announcing Redis support in Spring Data and just days after Grails got support for Riak , Spring Data is announcing the 1st milestone of Riak support. The same Costin Leau:

tags:riak

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NoSQL: Percona Server Providing Both SQL and NOSQL

Percona Server Providing Both SQL and NOSQL

It didn't take long before someone MySQL KV-only engine and included it in its distribution:

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NoSQL: Sharding with SQL Azure

Sharding with SQL Azure

Just after posting about this excellent Database.com and SQL Azure comparison , I have found another interesting Microsoft Azure article.

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NoSQL: Cascading 1.2 Released

Cascading 1.2 Released

A bit late with the post, but here is Cascading 1.2 :

tags:hadoop

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NoSQL: Graph Theory and Databases

Graph Theory and Databases

Pere Urbón-Bayes must check slides deck on graph databases and their applicability. I like this graph database products slide most:

tags:neo4j,HyperGraphDB,Infogrid,Sones

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NoSQL: Preliminary Comparison of Database.com and SQL Azure Features and Capabilities

Preliminary Comparison of Database.com and SQL Azure Features and Capabilities

Extensive comparison of the upcoming Database.com and Microsoft's SQL Azure:

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NoSQL: How to run Redis natively on Xen

How to run Redis natively on Xen

In this post we will investigate how Redis, a popular key-value storage, can be run natively on Xen, i.e., without the support of a conventional operating system such as Linux, and what implication this has on the performance.

tags:Redis

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NoSQL: HBase and CouchDB Among SDTimes' 5 Next Big Things in Open Source

HBase and CouchDB Among SDTimes' 5 Next Big Things in Open Source

In open-source parlance, the year 2010 can be summed up in one word: Hadoop. But what are the open-source projects that will be most important in 2011?

tags:HBase,CouchDB

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NoSQL: CouchDB: The Most Widely Distributed, NoSQL Open Source DB

CouchDB: The Most Widely Distributed, NoSQL Open Source DB

What open source DB is shipped along with Ubuntu and so is on millions of computers today? If you guessed MySQL you lose. If you guessed CouchDB you are today's lucky winner.  Yes, thats right, CouchDB is shipped with every version of Ubuntu and in terms of computers with it loaded on may be the biggest of the open source databases.

tags:CouchDB

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NoSQL: Why NoSQL is hard at The Knot

Why NoSQL is hard at The Knot

Jason Sirota summarizes concerns expressed by developers, DBAs, and OPs teams related to NoSQL databases:

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NoSQL: Errors in Database Systems Still Must Consider Network Partitions

Errors in Database Systems Still Must Consider Network Partitions

Dan Weinreb on Michael Stonebraker's network partition scenarios from the overly discussed paper about ☞ Erros in Database Systems, Eventual Consistency, and the CAP Theorem  :

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NoSQL: NoSQL Databases in Grails and Spring Data

NoSQL Databases in Grails and Spring Data

When checking the ☞ GitHub repository for Grails/GORM entities support for Riak MapReduce I have noticed multiple NoSQL integration projects [ 1 ]  :

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NoSQL: Grails/GORM Entities Support for Riak MapReduce

Grails/GORM Entities Support for Riak MapReduce

Things are becoming clearer to me: Grails/GORM is the Springframework avant-garde experimenting and integrating various NoSQL databases. Early February there were Grails plugins for CouchDB, HBase, Neo4j, and AppEngine , then it was time for Redis support in Grails , followed shortly by MongoDB support in Grails/GORM .

tags:Riak,MapReduce

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NoSQL: Monitoring MongoDB

Monitoring MongoDB

The guys over BoxedIce have another great article on MongoDB monitoring (and promise a series of article on the subject):

tags:MongoDB

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NoSQL: Neo4j Exceptions

Neo4j Exceptions

As protocols , APIs are an extremely important part of the product and in case you have a rich API you might face criticism:

tags:neo4j

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NoSQL: Amazon SimpleDB: An Intro

Amazon SimpleDB: An Intro

Tom Borthwick:

tags:simpledb

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NoSQL: RavenDB: Run as an IIS Application

RavenDB: Run as an IIS Application

A very detailed (and full of screenshots) tutorial on setting up RavenDB as an IIS application [ 1 ] :

tags:RavenDB

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NoSQL: Terrastore 0.8.0 Released, Featuring Map/Reduce

Terrastore 0.8.0 Released, Featuring Map/Reduce

After a short break, Terrastore has published a new version, 0.8.0, which brings quite a few interesting features, plus some performance, scalability, and stability enhancements:

tags:terrastore

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NoSQL: Spring Data: Redis Integration Reaches Milestone 1

Spring Data: Redis Integration Reaches Milestone 1

The second NoSQL database supported in Spring Data , after Neo4j which was mentioned during the official Spring Data announcement , is, as you'd expect, Redis . Costin Leau just announced the Spring Data - Redis integration first milestone availability.

tags:redis

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NoSQL: OrientDB New Release Featuring Sync and Async Replication

OrientDB New Release Featuring Sync and Async Replication

OrientDB, the document or graph store , has announced a new release, 0.9.24, featuring amongst a few SQL support improvements, synchronous and asynchronous replication .

tags:orientdb

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NoSQL: NoSQL The Ruby Way

NoSQL The Ruby Way

A not yet released ☞ book :

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NoSQL: MongoDB Largest Deployments

MongoDB Largest Deployments

This ☞ Quora.com thread is listing the following largest MongoDB deployments:

tags:mongodb

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NoSQL: Redis 2.2: What's New with Pieter Noordhuis

Redis 2.2: What's New with Pieter Noordhuis

Pieter Noordhuis ( @pnoordhuis ) talks about the upcoming Redis 2.2:

tags:redis

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NoSQL: MySQL at Facebook with Mark Callaghan

MySQL at Facebook with Mark Callaghan

When Facebook talks MySQL, it usually means BigData MySQL, high availability and scalable MySQL, and last, but not least NoSQLized MySQL . Mark Callaghan:

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NoSQL: Membase Short Video Series

Membase Short Video Series

Membase has started a series of short videos on setting and getting up to speed with Membase. I think that's a great idea, but calling the series "Membase for Dummies", not so much !

tags:membase

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NoSQL: MongoDB Videos from MongoSV

MongoDB Videos from MongoSV

It's weekend again and so it's time for some NoSQL videos. For MongoDB fans, 10gen has published ☞ here videos recorded at their latest MongoSV event.

tags:mongodb

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NoSQL: NoSQL One Great Technology at Startups

NoSQL One Great Technology at Startups

There are more innovative database startups at various stages in their life than I can remember right now (e.g. Vertica, Clustrix, Tokutek), not to mention the NoSQL startups (Cloudera, Basho), messaging companies (Solace, Kaplan, 29west), visualization companies (Panopticon, Spotfire), and hundreds of other software startups with a sizable technical product innovation challenge ahead of them.

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NoSQL: Thanksgiving Weekend Crash Course - Android, Sencha Touch, PhoneGap and CouchDB

Thanksgiving Weekend Crash Course - Android, Sencha Touch, PhoneGap and CouchDB

Horace Lin having fun with some cool frameworks and tools, including CouchDB:

tags:couchdb

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NoSQL: Wordnik's MongoDB Tools

Wordnik's MongoDB Tools

Wordnik has shared their experience running MongoDB for 12 moths and now they are also sharing a set of in-house developed tools for managing MongoDB backups:

tags:mongodb

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NoSQL: MongoDB and Eventbrite's Social Graph

MongoDB and Eventbrite's Social Graph

Brain Zambrano presented recently at ☞ MongoSV the way Eventbrite is using MongoDB for modeling their user/events social graph. Slides can be downloaded from ☞ here .

tags:mongodb

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NoSQL: CouchDB and Varnish Caching - Why it Does Not Work

CouchDB and Varnish Caching - Why it Does Not Work

It was said many times that thanks to the fact that CouchDB is HTTP uberfriendly, you could use web tools to get it to scale. One such tool that was mentioned is the web cache ☞ Varnish . Mathias Meyer pointed out in the CouchDB post 1.o roadmap that the lack of caching in CouchDB (basically all reads go to disk) should be addressed sooner than later.

tags:couchdb

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NoSQL: Planning for Data Migration

Planning for Data Migration

From the Amazon ☞ Migrating your Existing Applications to the AWS Cloud paper (PDF) :

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NoSQL: Mining of Massive Datasets: Free PDF

Mining of Massive Datasets: Free PDF

Anand Rajaraman (Kosmix, Inc.) and Jeffrey D. Ullman (Stanford Univ.) have made their book *Mining of Massive Datasets" available online ☞ here (PDF) . Enjoy.

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NoSQL: How to Document Document Databases?

How to Document Document Databases?

Interesting question about documenting the "schema" of document databases on the ☞ MongoDB group . Suggested solutions:

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NoSQL: LivelyCouch: Towards the CouchDB Application Server

LivelyCouch: Towards the CouchDB Application Server

I'm not convinced that building or bundling another application server together is the right way to go. But that's what ☞ ' rel='external nofollow'>☞ LivelyCouch proposes:

tags:couchdb

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NoSQL: CouchDB and Java

CouchDB and Java

There are five different APIs recommended by CouchDB for use with Java. Each one uses a different API for JSON encode/decode, for logging and for the HTTP Stuff. If you want to use SSL, that's also implemented differently

tags:couchdb

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NoSQL: Big Data is snake oil

Big Data is snake oil

It's because data is powerful but fickle. A lot of theoretically promising approaches don't work because there's so many barriers between spotting a possible relationship and turning it into something useful and actionable. […] Here's some of the hurdles you'll have to jump: Acquisition Coverage Over-determination Poor correlations Noise

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NoSQL: CRUD with MongoDB

CRUD with MongoDB

Pretty useful if you are getting started with MongoDB:

tags:mongodb

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NoSQL: CouchApps Marketplace: A (Possible) Future for CouchDB

CouchApps Marketplace: A (Possible) Future for CouchDB

When I've heard the coherent CouchOne's positioning , the very next thought was of a CouchApps marketplace . Looks like someone already got to it:

tags:couchdb

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NoSQL: Harmony Migration to Using GridFS

Harmony Migration to Using GridFS

When we switched to MongoDB over a year ago, we decided it would be all or nothing. Everything in Harmony is stored in Mongo and that includes users, accounts, sites, content, stylesheets, javascripts, and yes, even assets.

tags:mongodb

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NoSQL: Caching and Replication: The Differences

Caching and Replication: The Differences

As always a fantastic read from Jeff Darcy:

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NoSQL: RavenDB and ASP.NET MVC

RavenDB and ASP.NET MVC

Very basic intro to RavenDB and ASP.NET MVC:

tags:ravendb

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NoSQL: MongoDB at Sunlight Labs for Open Government Apps

MongoDB at Sunlight Labs for Open Government Apps

Sunlight Labs uses MongoDB for 3 different projects in the field of Open Government and the embedded slides talk about what MongoDB brought to the table:

tags:mongodb

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NoSQL: Top 5 Reasons to choose CouchDB

Top 5 Reasons to choose CouchDB

From Bocoup's Hack Night:

tags:couchdb

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NoSQL: Developers: Key to NoSQL Adoption

Developers: Key to NoSQL Adoption

In a recent ☞ CouchOne post , the author [ 1 ] wrote:

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NoSQL: To SQL or not to SQL Panel at CODEBITS IV

To SQL or not to SQL Panel at CODEBITS IV

A panel discussion on NoSQL, NoSQL databases, and relational databases, featuring Salvatore Sanfilippo [ 1 ] , Lenz Grimmer [ 2 ] , Filipe David Borba Manana [ 3 ] , and a forth person from SAPO whose name I couldn't spell:

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NoSQL: OpenTSDB Lightning Talk with Benoit "tsuna" Sigoure

OpenTSDB Lightning Talk with Benoit "tsuna" Sigoure

Benoit "tsuna" Sigoure talking OpenTSDB:

tags:hbase

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NoSQL: CouchDB and PHP Video Tutorial

CouchDB and PHP Video Tutorial

Besides LAMP, you can now learn about LAP(hp)-CouchDB-:

tags:couchdb

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NoSQL: Non-canonical Use Case for MongoDB for schools.chicagotribute.com

Non-canonical Use Case for MongoDB for schools.chicagotribute.com

Christopher Groskopf [ 1 ] presenting a not so typical use case for MongoDB for building schools.chicagotribune.com, sharing their experience with schema-less design, search faceting, and geo-queries :

tags:mongodb

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NoSQL: Why NoSQL ... Why Not

Why NoSQL ... Why Not

Interesting article from Xeround Avi Kapuya ☞ NoSQL: The Sequel . Couple of comments though:

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NoSQL: Distributed Database Systems

Distributed Database Systems

After an intro about large scale classical RDBMS setups, ☞ Will Fitch’s post started well:

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NoSQL: Distributed Transactions Matter: Google's Jeff Dean

Distributed Transactions Matter: Google's Jeff Dean

Via ☞ Yang : Jeff Dean in the ☞ Stanford EE380 lecture (windows video) [ 1 ] :

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NoSQL: HBase and Hadoop at Adobe

HBase and Hadoop at Adobe

You probably know by know that Adobe is using HBase . Cosmin Lehene [ 1 ] is showing in the slides below where and how HBase and Hadoop are used:

tags:hbase,hadoop

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NoSQL: Neo4j 1.2 Milestones

Neo4j 1.2 Milestones

Neo4j has announced the milestones 4 and 5 towards the 1.2 version which is promising quite a few interesting new features :

tags:neo4j

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NoSQL: SQL or NoSQL: Stop Being Religious

SQL or NoSQL: Stop Being Religious

But lot of people asked me why I am part of Zynga database team when there is no MySQL being used […] As a consultant, I help lot of other companies to scale using NoSQL systems apart from MySQL especially on large data handling; as the data store solution should help to scale the systems to yield the desired results; especially MySQL should be used for typical OLTP workloads and combination of MySQL and NoSQL or any other data warehouse clusters for analytics and/or OLAP workloads by combining with right application and caching components based on the business model and how the data is generated, stored, accessed and processed. ☞ Venu Anuganti

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NoSQL: Naive Bayes Classification in Ruby using Hadoop and HBase

Naive Bayes Classification in Ruby using Hadoop and HBase

I couldn't find anything that could possibly handle many terabytes of data, though. Most Ruby implementations, like the classifier gem, have only a simplistic implementation […]. I decided to create a better naive bayes implementation (for instance, using a Laplacian smoother) that could also handle up to many terabytes of corpus data. We already have a Hadoop cluster with HBase running, and HBase is perfect for storing data like word counts.

tags:hadoop,hbase

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NoSQL: 10Gen, MongoDB Producer, Raises $6.5 in Third Round of Financing

10Gen, MongoDB Producer, Raises $6.5 in Third Round of Financing

The announcement that 10gen, the company behind MongoDB, raised $6.5 was published on too many places , so I just wanted to drop a couple of comments:

tags:mongodb

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NoSQL: Hadoop World 2010 Tweet Analysis

Hadoop World 2010 Tweet Analysis

Fun project using Hadoop and Twitter streaming API:

tags:hadoop

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NoSQL: Riak Function Contrib

Riak Function Contrib

The official Basho post about the Riak MapReduce, Pre-commit, Post-commit Hook Function repository:

tags:riak

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NoSQL: MONGOID Cheat Sheet

MONGOID Cheat Sheet

☞ MONGOID , one of the most popular — one as in currently I can count at least 4: MongoMapper and MONGOID compared , MongoODM , and Mongomatic, a minimal mapper — MongoDB Ruby-based "Object-Relational Mapper" [ 1 ] , got a ☞ cheat sheet . Print it as a PDF and have it around if you are a rubyist working with MongoDB.

tags:mongodb

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NoSQL: Apple going Hadoop. Question is: HBase Or Cassandra?

Apple going Hadoop. Question is: HBase Or Cassandra?

Based on a ☞ job announcement , The Register ☞ writes that Apple is probably considering HBase for their iAds platform. Truth being told, the announcement talks about Hadoop and mentions HBase or Cassandra:

tags:hadoop,hbase

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NoSQL: Riak Library of MapReduce and Pre/Post-Commit Hook Functions

Riak Library of MapReduce and Pre/Post-Commit Hook Functions

Very cool idea coming from Basho guys of setting up a common repository for Riak MapReduce and Pre-Commit/Post-Commit hooks functions. The repo is just a ☞ GitHub project and even if right now there aren't any contributions, I guess we'll see some over time. It would also be cool if each submission would be reviewed and generalized by the Basho guys. Why not even incorporated in future releases.

tags:riak

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NoSQL: Spanish: NoSQL Market Analysis

Spanish: NoSQL Market Analysis

If you are reading Spanish [ 1 ] , Ivan de la Jara has two articles ( ☞ part 1 and ☞ part 2 ) about NoSQL databases.

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NoSQL: redis_graph: Redis-based Graph Database for Python

redis_graph: Redis-based Graph Database for Python

redis_graph is a graph database implemented in Python. It shows how awesome Redis is as the implementation is under 40 lines of code. The perfomance should be excellent, while scaling it might be an issue. I would not recommend using it if you are storing nodes in the millions range.

tags:redis

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NoSQL: Explaining the Campfire outage on November 30th

Explaining the Campfire outage on November 30th

Or the horrid story of trying distributed transactions:

tags:redis

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NoSQL: CouchDB: Measuring Read Request Throughput

CouchDB: Measuring Read Request Throughput

I am trying to measure max couch throughput - for these tests im happy with just repeatedly requesting the same document. I have some reasonable boxes to perform these tests - they have dual quad core X5550 CPUs with HyperThreading enabled and 24GB RAM. These boxes have a stock install of oracle enterprise linux 5 on them (which is pretty much RHEL5). The oracle supplied erlang version is R12B5 and I am using couch 1.0.1 built from source. The database is pretty small (just under 100K docs) and I am querying a view that includes some other docs (the request contains include_docs=true) and using jmeter on another identical box to generate the traffic. The total amount of data returned from the request is 1467 bytes. For all of my tests I capture system state using sadc and there is nothing else happening on these boxes

tags:CouchDB

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NoSQL: NoSQL vs SQL, Why Not Both?

NoSQL vs SQL, Why Not Both?

Alaric Snell-Pym [ 1 ] :

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NoSQL: Proof of Concept: Neo4j REST server, GWT, and JIT

Proof of Concept: Neo4j REST server, GWT, and JIT

Christopher Schmidt has a 3 part article ( ☞ 1 , ☞ 2 , and ☞ 3 ) creating a proof of concept app using Neo4J REST server, GWT, JIT:

tags:neo4j

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NoSQL: Stratifying asynchronous storage

Stratifying asynchronous storage

More about Node.js, but everyone is playing out with Node and NoSQL databases these days. And I don't think I'm the only one finding the callback programming model quite unreadable (eye hurting?):

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NoSQL: First Look at RavenDB UI for Desktop

First Look at RavenDB UI for Desktop

They said they are looking for a desktop app for RavenDB , so now when mostly every NoSQL database has a web based “tool”, RavenDB is getting a desktop management client:

tags:ravendb

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NoSQL: CouchDB Limitations: Impedance Mismatch with CouchDB

CouchDB Limitations: Impedance Mismatch with CouchDB

Andrew Brehaut contributing to the list of possible CouchDB improvements :

tags:couchdb

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