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DB Weekly Issue 8
April 4, 2014
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Featured
Manhattan: Twitter's Real-time, Multi-tenant Distributed Database At Twitter’s scale, availability, performance and scalability are all primary concerns. Manhattan is Twitter’s next generation distributed database and this post digs into how it’s structured.
Twitter
SQL Server 2014 Hits General Availability
SQL Server Pro
MongoDB Innovation Awards: Call for Nominations Doing something amazing with MongoDB? Winners will be announced at MongoDB World in June.
MongoDB
From our supporter
ObjectRocket Free Trial Offer ObjectRocket, the MongoDB managed service on the cloud, is a sharded environment that helps you scale automatically or manually with ease, with architecture purpose-built to optimize the performance of MongoDB. Get a 5GB shard free for 30 days upon sign up. See all the features and start a free trial today.
Rackspace
Reading
Redis's Newest Data Structure: The HyperLogLog HyperLogLog is an algorithm that uses randomization to provide an approximation of the number of unique elements in a set using just a small (and constant) amount of memory. This post digs deep into it.
Salvatore Sanfilippo
NoSQL and the Hybrid Cloud If a NoSQL database can be deployed on-premise or it can be deployed in the cloud, why can’t it be deployed on-premise and in the cloud? It can, and it should. This article highlights a variety of hybrid cloud use cases for NoSQL database deployments.
Couchbase Blog
Data Science Laboratory System - Distributed File Databases Distributed File Databases manage large amounts of unstructured or semi-structured data. They are designed on the principle of splitting up the data into multiple locations, and then placing the code that processes each fragment close, or directly on, that location. Buck Woody shows how to install Hadoop in your Data Science lab to experiment with an example of the breed.
Simple Talk
Cassandra Lowers the Barriers to Big Data Apache Cassandra is a free, open source NoSQL database designed to manage very large data sets (think petabytes) across large clusters of commodity servers.
CIO
Data Science Laboratory System - Distributed File Databases Distributed File Databases manage large amounts of unstructured or semi-structured data. They are designed on the principle of splitting up the data into multiple locations, and then placing the code that processes each fragment close, or directly on, that location. Buck Woody shows how to install Hadoop in your Data Science lab to experiment with an example of the breed.
Simple Talk
Subtly Bad Things Linux May Be Doing To PostgreSQL
Robert Haas
Creating PostgreSQL Arrays Without A Quadratic Blowup Arrays are very useful in Postgres, but depending on how you’re working with them they can have significant performance costs. Here’s one example of using arrays and a specific way to alter the usage to make them more efficient.
Heap
If You Are Designing Your Own REST Backend You're Doing It Wrong
Ólafur Arason
The End of ORM
Gumtree Dev Team
DBMSs and Tools
MariaDB 10 Released MariaDB is a community-developed fork of MySQL. Version 10 boasts significant performance improvements, improved replication and sharding features, and extended NoSQL capabilities.
MariaDB Foundation
Oracle Announces Oracle NoSQL Database 3.0 The latest version of Oracle’s distributed key-value database.
Oracle
Announcing Couchbase Server 2.5.1
Couchbase Blog
JXcore Combines SQLite and Node.JS for Raspbian Regular Node.js can take hours to compile on the Raspberry Pi but JXcore have a Pi-focused binary of their Node.js variant ready to go. It includes SQLite too.
Oguz Bastemur
DataFiller 2.0.0: Data Generation from a Postgres Schema DataFiller processes a PostgreSQL database schema file augmented with directives in comments, and generates random data matching this schema, taking into account constraints such as types, but also primary key, unique, foreign keys, not null…
Fabien Coelho
C-ORM: A Mini Object Relational Mapper for C C-ORM moves data between structs in C and tables in a relational database (ie “in SQL”). It’s a little like Hibernate for Java, or SQLAlchemy for Python - it simplifies building structs from the data in the database, and also helps writing data in structs back out again.
Andrew Cooke
Jobs
NoSQL Database Administrator (San Antonio, TX) Rackspace is seeking a Mid-to-Senior level DBA to join our Operations team to work on our scalable, highly-available Mongo and Cassandra platforms. Love a challenge? Anyone can manage a single application - we manage and maintain the infrastructure for many of the internal Rackspace automation teams. You’ll be part of a highly capable and motivated team working on solving the hard problems of scalability, availability, and performance on a global platform.
Rackspace
Postgres Database Administrator (San Antonio, TX) The Postgres Database Administrator at Rackspace, one of Fortune’s list of 100 Best Companies to Work for, is responsible for configuring, administering, and maintaining the Postgres database environments. Responsibilities include database upgrades, patching, security, troubleshooting and issue resolution, backup procedures, and performance tuning. In addition, DBA’s will provide support and direction to developers and other support personnel as needed. Daily responsibilities include monitoring production environment, providing acceptable system performance, and assuring data is protected and recoverable as required. Read more and apply here.
Rackspace
Supported by Rackspace and published by Cooper Press.

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