Blogs — October 2017

Technical Technical — Cassandra

Cassandra Scalability: Allow Filtering and Partition Keys

Tuesday 31st October 2017 by Anup Shirolkar

The ‘ALLOW FILTERING’ clause in Cassandra CQL provides greatly increased flexibility of querying. However, this flexibility comes at a substantial performance cost that should be aware of before using ‘ALLOW FILTERING’.  This post explains the costs and benefits of ALLOW FILTERING. The data storage and query operations in Apache Cassandra work on top of partitioned […]

Technical — Cassandra Technical

Apache Cassandra 2.1.19, 2.2.11, 3.0.15 and 3.11.1 Available now through Instaclustr’s Managed Service

Monday 30th October 2017 by Instaclustr

Instaclustr announces the immediate availability of Apache Cassandra 2.1.19, 2.2.11, 3.0.15 and 3.11.1 through the Instaclustr Managed Service. These versions contain many significant bug fixes, demonstrating the recently renewed focus of the Apache project on release quality. Thanks to all the contributors who helped get these releases completed! We have provided a summary of the […]

Technical Technical — Elasticsearch

Elassandra & Kibana Data Exploration with Fantasy Basketball

Friday 27th October 2017 by Jordan Braiuka

Fantasy Basketball. Part statistics, part unpredictable human behaviour. It works like this: All the players in the NBA are put into a pool. Then, all the fantasy team owners take turns drafting the NBA players onto their fantasy team, building up the team. Then, each week, two teams go head to head, competing to see […]

Technical

Behind the Scenes

Wednesday 25th October 2017 by Paul Brebner

Spoiler alert! Kubrick’s scientific consultant Frederick Ordway once revealed that Kubrick had the props for the film destroyed because he didn’t want to ruin the illusion of 2001 for people.  If you prefer to believe that 2001 was real, stop reading now, as behind-the-scenes photos did survive. 2001 pioneered lots of special effects! It was […]

Technical — Cassandra Technical — Elasticsearch Feature Releases

Announcing Instaclustr Private Network Clusters for Cassandra and Elassandra

Friday 20th October 2017 by Instaclustr

Instaclustr is pleased to announce the release of a new feature, Private Network Clusters.  This feature continues Instaclustr’s commitment to security by providing our customers with the option to provision clusters where the nodes do not have publically routable IPs allocated. This configuration is security best practice and a security requirement for many organisations as […]

Technical

Fourth Contact with a Monolith

Friday 20th October 2017 by Paul Brebner

“The thing’s hollow — it goes on forever — and — oh my God! — it’s full of stars!” It’s full of Spreadsheets! (DataFrames) Given that a dog, Laika, was the 1st astronaut to orbit the earth, it’s appropriate for a dog to travel through the wormhole. After travelling through the wormhole, the 2001 story […]

Technical — Cassandra

The Next Generation Cassandra Conference (NGCC)

Thursday 19th October 2017 by Ben Bromhead

NGCC Summary The Next Generation Cassandra Conference (NGCC) is an annual meeting of developers, contributors, committers, driver authors and anyone interested in the development of Apache Cassandra where they can all get together and talk about the technical and community direction of the Cassandra project.  This year the NGCC was held in San Antonio, Texas. […]

Technical Technical — Cassandra

Cassandra NoSQL Data Model Design

Thursday 5th October 2017 by Ben Slater

Abstract This paper describes the process that we follow at Instaclustr to design a Cassandra data model for our customers. While not a prescriptive, formal process it does define phases and steps that our team follows when we are design a new data model for our customers: Phase 1: Understand the data Phase 2: Define […]