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Ayende Rahien05/06/13
417 views
0 replies

Raven's Storage: Memtables are Tough

Memtables are conceptually a very simple thing. You have the list of values that you were provided, as well as a skip list for searches.

Eric Genesky05/06/13
2758 views
0 replies

An Interview with Data Mining Refcard Author Giuseppe Vettigli

Today, DZone released its Data Mining Refcard, authored by Giuseppe Vettigli. We had a chance to sit down with Giuseppe to learn about his background and his experience authoring this Refcard.

Yung Chou05/06/13
898 views
0 replies

Building a Private Cloud with System Center 2012 Service Pack 1 – Managing Your Hybrid Cloud Network

We’re here for the final part in our Building a Private Cloud series and in today’s episode Keith Mayer and Yung Chou show us to manage our hybrid cloud environment with System Center 2012 SP1 App Controller.

Eric Genesky05/06/13
454 views
0 replies

Managing MonboDB Clusters on AWS with Chef

We will discuss how to manage large numbers of clusters using Chef roles. We'll also discuss how to automatically snapshot your RAID arrays and reprovision from the latest set of snapshots . . .

Eric Genesky05/05/13
2976 views
0 replies

Radical NoSQL Scalability with Cassandra

This session from last year's OREDEV developer conference covers Cassandra's data model as well as its query idioms and how to deploy it.

Eric Genesky05/04/13
1268 views
0 replies

Building Mobile Applications with NoSQL

In this presentation, you'll learn about why a NoSQL database may be the best fit for your mobile application, as well as explore some use cases for real-world deployments.

Eric Genesky05/04/13
909 views
0 replies

On Moving Beyond the No/New/SQL Debate

With the wide adoption of hosted commodity hardware, no-sql, REST, HTML5 and d3, we are entering a brave new world.

Ayende Rahien05/03/13
1002 views
0 replies

Raven's Storage: Understanding the SST File Format

If you are wondering about the binary format, that is what this post is all about. We actually start from the end. We have the last 48 bytes of the file are dedicated to the footer.

Eric Genesky05/03/13
1032 views
0 replies

Building RightScale's Globablly Distributed Datastore

Is your database holding back your application? Find out how we at RightScale use NoSQL databases such as Cassandra to provide a scalable, distributed, and highly available service around the world . .

Ayende Rahien05/03/13
646 views
0 replies

Raven's Storage: Reading a Sorted String Table

When reading a SST, we have to deal with values of potentially large sizes. I want to avoid loading anything into managed memory if I can possible avoid it.

Eric Genesky05/03/13
2315 views
0 replies

MongoDB Backup Service Limited Release

10gen recently announced a cloud-based backup service designed for MongoDB. Here's a slice of the announcement . . .

Sandeep Patel05/02/13
1992 views
0 replies

Getting Started with Redis Store: Installation in Ubuntu

Here's a simple step-by-step tutorial for getting started with Redis on Ubuntu

Pascal Alma05/02/13
1086 views
0 replies

Using s3cmd for Working with AWS S3 Buckets

When you make use of (some of the) Amazon services there is a big chance S3 is one of them for the storage of files, be it temporary or more permanent.

Tommy Patterson05/02/13
670 views
0 replies

Build Your Own Private Cloud Series

Server virtualization has been a great set of technologies to reduce our capital expenses and some operating expenses by consolidating a larger number of virtualized server workloads in a smaller footprint . . .

Josh Adell05/02/13
2371 views
0 replies

Serializing Data Like a PHP Session

PHP has several built-in ways of serializing/unserializing data. The most cross-platform is json_encode; pretty much every programming stack can JSON decode data that . . .

Eric Genesky05/01/13
8299 views
1 replies

Why Choose NoSQL and Document Databases over RDBMS?

This screencast by Michael Kennedy shows you the stark contrast in simplicity between an application using a relational database and one using a document database such as VoltDB, MongoDB . . .

Rick Copeland05/01/13
7186 views
0 replies

MongoDB Schema Design at Scale

Given that one of my most widely read blog posts is still MongoDB's Write Lock, I decided that my blog readers would also be interested in the quantitative comparison as well.

Rodrigo De Castro05/01/13
15745 views
0 replies

Redis as Memcached Replacement?

I found Redis to be a very interesting option to Memcached for use as caching layer:

Dave Walker05/01/13
3021 views
0 replies

Introducting a MongoDB Replica Set Demonstration and Experimentation Service

A lot of our users upgrade from single-node databases to replica set clusters without fully understanding how their driver, and therefore their application, will react to failover

Eric Genesky05/01/13
2128 views
0 replies

College Credit: An Introduction to Apache Cassandra

Aaron Morton, DataStax MVP fo Cassandra, presents this 1-hour introduction to Apache's NoSQL solution.

Sandeep Patel04/30/13
2791 views
0 replies

CouchDB: Adding Document Using Java Couchdb4j

Here's a quick tutorial for adding documents using Java Couchdb4j.

Mark Needham04/30/13
1735 views
0 replies

Neo4j/Cypher: Returning a Row with Zero Count When No Relationship Exists

I’ve been trying to see if I can match some of the football stats that OptaJoe posts on twitter and one that I was looking at yesterday was around the number of red cards different teams have received.

Manu Pk04/30/13
3380 views
0 replies

Book Review: NoSQL Distilled

First of all, it is a short book and you can run through the pages fast. As the title says, the book is really an introduction to NoSQL databases.

Ayende Rahien04/30/13
1201 views
0 replies

RavenDB's Storage: Building a Sorted String Table

Applying the lessons from the leveldb codebase isn’t going to be a straightforward task. I already discussed why we can’t just use leveldb directly, so I won’t go into that.

Chris Travers04/29/13
2900 views
0 replies

Introduction to PostgreSQL Arrays, Basic Concepts and Normalization Considerations

PostgreSQL has very good support for arrays of other data types. One can have nested data types where an attribute of a relation stores an array of tuples . . .